Pathfinder 48V3kW 3rdEd

7/29/2019 Pathfinder 48V3kW 3rdEd

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Pathfinder 48V-3kWModular Switched ModeRectifier System

010-537-B2


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Argus Technologies Ltd. Visit www.argus.ca

Burnaby, British Columbia. Telephone: 604 436 5900 Fax: 604 436 1233Argus Technologies reserves the right to make changes to the products and information contained in this document without notice.Copyright 2008 Argus Technologies Ltd. Argus

is a registered trademark of Argus Technologies Ltd. All Rights Reserved.

Printed in Canada.

This page intentionally left blank.


3/58Argus Technologies Ltd. 010-537-B2 Rev Printed in Canada. 2004 Argus Technologies Ltd. ARGUS is registered trademark of Argus Technologies Ltd. All Rights Reserved.

Pathfinder 48V-3kWModular Switched Mode Rectifier System

010-537-B2

The following documents and drawings are included in this manual to provide the necessary information required forinstallation, operation and fault diagnosis of the unit:

Specifications, Pathfinder 48V-3kW: 010-537-B1 Rev C CSA/NRTL Equivalence: 048-554-10

Warranty Policy: 048-507-10

Safety, Installation and Operation Instructions: 010-537-C0 Rev C

Notice, Pathfinder 3kW: 954-330-10

Outline Drawings, 19 Cabinet: 030-594-06 Outline Drawings, 23 Cabinet: 030-577-06 Outline Drawing, Power Module: 010-537-06

Customer Connections, Cabinet Backplane: 030-577-08 Spare Parts List, Pathfinder 48V-3kW: 010-537-G0

Factory Service Information: 048-527-10


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MANUAL ADDENDUM

Unit Description: Pathfinder 3kW Rectifier SystemManual P/N: 010-537-C0 Applies to Manual Revision: C

# Date Page# Line# Correction to be implemented

1 04-06-15 11 1 Replace Section 2.2.11 with the following:

2.2.11 Forced CoolingEach module is equipped with a rear-mounted fan. The fan operates

typically at temperatures above 0C. Cooling of the unit is front to rearwith the hot exhaust on the back.

2 13 23 Correct text from 3/4" cable knockouts to 1 cable knockouts.

3 24 14 Correct Current Limit (range and default setting) from 140A to 125A.

MANUAL ADDENDUM

Authorized by: FORM 954-010-10 WD 010537c0c_1_Addendum1.doc


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SPECIFICATIONS FOR ARGUS TECHNOLOGIES SWITCHED MODE RECTIFIER PATHFINDER 48V-3KW

ARGUS

TECHNOLOGIES LTD. 010-537-B1 Rev C Page #1 of 2

Power Module Output

Voltage: 48 to 58VDC (standard)42 to 58VDC (extended)

Current: 55ADC nominal (70ADC maximum)

Maximum Power: 3000W continuous/module

Regulation: 0.2% 25mV line and load (0.2% minimum slope) [static]

Transient Response: 2ms to 0.1% of output for 50 to 100% load step1% deviation for 50 to 100% load step

Time Stability: 0.1% per year

Temperature Stability:


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SPECIFICATIONS FOR ARGUS TECHNOLOGIES SWITCHED MODE RECTIFIER PATHFINDER 48V-3KW

ARGUS

TECHNOLOGIES LTD. 010-537-B1 Rev C Page #2 of 2

Power Module Input

Voltage: 176 to 275VAC (45 to 70Hz)

Current: 16.2A (208VAC nominal) @ 3000W/module

Power Factor: >0.99 true (50 to 100% load)

T.I.F. (Current):


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What are the CSA and NRTL?CSA (Canadian Standards Association also known as CSA International) was established in 1919 asan independent testing laboratory in Canada. CSA received its recognition as an NRTL (Nationally

Recognized Testing Laboratory) in 1992 from OSHA (Occupational Safety and Health Administration) inthe United States of America (Docket No. NRTL-2-92). This was expanded and renewed in 1997, 1999,and 2001. The specic notications were posted on OSHAs ofcial website as follows:

Federal Register #: 59:40602 - 40609 [08/09/1994]Federal Register #: 64:60240 - 60241 [11/04/1999]Federal Register #: 66:35271 - 35278 [07/03/2001]

When these marks appear with the indicator C and US or NRTL/C it means that the product iscertied for both the US and Canadian markets, to the applicable US and Canadian standards. (1)

Argus rectier and power system products, bearing the aforementioned CSA marks, arecertied to CSA C22.2 No. 950 and UL 1950, or CSA/UL 60950.

As part of the reciprocal, US/Canada agreement regarding testing laboratories, the Standards Councilof Canada (Canadas national accreditation body) granted Underwriters Laboratories (UL) authority tocertify products for sale in Canada. (2)

Only Underwriters Laboratories may grant a licence for the use of this mark, which indicates compliancewith both Canadian and US requirements. (3)

What are NRTLs and what do they do?NRTLs are third party organizations recognized by OSHA, US Department of Labor, under the NRTLprogram.

The testing and certications are based on product safety standards developed by US based standardsdeveloping organizations and are often issued by the American National Standards Institute (ANSI). (4)

The NRTL determines that a product meets the requirements of an appropriate consensus-based

product safety standard either by successfully testing the product itself, or by verifying that a contractlaboratory has done so, and the NRTL certies that the product meets the requirements of the productsafety standard. (4)

When was the NRTL started and who governs it?In 1983, in a suit brought on by an independent testing laboratory, OSHA was court ordered to removespecic references to UL (Underwriters Laboratories) and FMRC (Factory Mutual Research Corporation)from its regulations.

In 1988, OSHA revised its regulations to remove those references and the NRTL program wasestablished.

The NRTL Program is both national and international in scope with foreign labs permitted.

References:Information in this document has been developed from the ofcial websites of the respectiveorganizations.(1) www.csa-international.org(2) www.scc.ca(3) www.ulc.ca(4) www.osha.gov

CSA/NRTL MARKS BACKGROUND

argusdcpower.com

048-554-10-I1 Rev C (2

The product on which either of these marks appearhas been certied by CSA as meeting applicableCanada/US standards.

The product on which this markappears has been certied by ULas meeting applicable Canada/USstandards.


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Warranty PolicyArgus Technologies Ltd. warrants all equipment manuactured by it to be ree rom deects in partsand labor, excluding third party OEM materials (example: air conditioners, batteries), or a period o

two years rom the date o shipment rom the actory. For third party products the OEMs warrantyshall apply. The liability o Argus applies solely to repairing, replacing or issuing credit (at Argus solediscretion) or any equipment manuactured by it and returned by the customer during the warrantyperiod. The terms o the warranty are Ex Works (EXW) rom Argus actory service location.

Argus reserves the right to void the warranty i:(1) identifcation marks or serial numbers are removed or altered in any way,(2) invoice is unpaid, or(3) deect is the result o misuse, neglect, improper installation, environmental

conditions, non-authorized repair, alteration or accident.

Argus shall not be liable to the customer or other parties or any loss o profts, loss o use, costs orremoval or installation o deective equipment, damages or consequential damages based uponequipment ailure during or ater the warranty period. There shall be no other obligations eitherexpressed or implied. Argus will not honor warranties or batteries and other third party productswithout prior written Argus authorization.

Freight PolicyCustomer is responsible or all shipping and handling charges (COD and reight collect will not beaccepted without prior approval rom Argus Technologies).

Terms o Payment (North America)Payment terms are net 30 days subject to prior credit approval. All other orders require paymentbeore shipping.

Terms o Payment (International)

Payment terms are subject to prior approval and are typically through Tele-Transer.

Return Material PolicyOur RMA policy is designed to ensure prompt, efcient and high quality actory service. A ReturnMaterial Authorization (RMA) number must be obtained beore products can be accepted orservicing by the Argus actory. For returns to an authorized service center (reer to AuthorizedService Centers or locations), please consult the individual service center or specifc return policiesand instructions.

To obtain a RMA number or a actory return, customers must call the appropriate location with theproduct serial and model number, as well as a brie description o the problem, shipment instructionsand billing details.

The original packing container should be used whenever possible. Both the shipping documentsand the outside o the box must have the RMA # clearly marked and the product shipped prepaid tothe Argus actory service center. Argus will endeavor to repair products within fve working days o

receipt. Repairs to the returned product are warranted or a period o six months. A service chargemay be applied i no ault is ound in the returned product. Argus will not accept products without anRMA number.

Business HoursArgus North American ofce hours are 7:30 am to 5:00 pm (Pacifc Standard Time) Monday to Friday.

WARRANTY AND REPAIR INFORMATION

Canada and USA toll ree 24 hour emergency technical support: +1 888 GO ARGUS (462 7487) Outside North America: +1 604 436

Factory Service CentersCanada and InternationalArgus Technologies Ltd.ATTN: RMA Returns7033 Antrim Avenue

Burnaby, BC, V5J 4M5 CanadaTel: +1 604 436 5900Fax: +1 604 436 1233Email: [email protected]

USAArgus Technologies Inc.ATTN: RMA Returns3116 Mercer Avenue

Bellingham, WA, 98225 USATel: +1-360 756 4904Fax: +1-360 647 0498Email: [email protected]

Asia-PacifcPCM Electronics (Dong Guan) Co., Ltd.Hongli Industrial Area, Miaobian, Liaobu Town,Dongguan City, Guangdong Province,523400 China

Tel: +86 755 8895 3310Fax: +86 755 8895 3307

Authorized Service CenterArgentina

Argus Technologies de ArgentinaBelen 315, Capital Federal, Buenos Aires,1407l Argentina

Tel: +54 (11) 4672 4821Fax: +54 (11) 4504 4698

Cell: +54 9 (11) 4993 9996Email: [email protected]

AsiaArgus Technologies Asia Pte Ltd

Blk 6 Tagore Lane #160Singapore 787570Tel: +65 6458 8900Fax: +65 6458 2122

AustraliaCPS National8/376 Newbridge RdMoorebank, NSW, 2170 AustraliaTel: +61 02 9822 8977

Fax: +61 02 9822 8077

Australia/New ZealandAlpha Power Systems Pty LtdUnit 3, 30 Heathcote Road

Moorebank, NSW, 2170 AustraliaTel: +61 02 9602 8331Fax: +61 02 9602 9180

Century Yuasa

37 - 65 Colbalt StreetCarole Park QLD 4300Australian Sales & ServiceTel: +61 07 3361 6587Fax: +61 07 3361 6705

New Zealand Sales & ServiceTel: +64 9 978 6689Fax: +64 9 978 6677

Canada

Compower Systems Inc.118 Tifeld RoadToronto, ON, M1V 5N2 CanadaTel: +1 416 293 3088Fax: +1 416 293 0671

EuropeAlpha Technologies Europe Ltd.Cartel Business EstateEdinburgh Way

Harlow, Essex, CM20 2DU UKTel: +44 1279 422110Fax: +44 1279 423355

Mexico & Central AmericaTechnologies Argus First De Mexico SA de CVAnatole France No. 17Col. PolancoMexico City, 11560 Mexico

Tel: +52 55 5280 6990Fax: +52 55 5280 6585

South AmericaArgus Technologies ArgentinaSanto Tome 2573, Capital Federal

Buenos Aires, 1416 ArgentinaTel: +54 11 4504 4698Cell: +54 9 11 4993 9996E-pager: [email protected]

TurkeyIPC Enerji Elk San ve TIC ASInonu cad. Kanarya sok. No:20Yenisahra - Kadikoy

Istanbul, TurkeyTel: +90 216 317 41 42Fax: +90 216 472 90 66

048-507-10-I1 Rev S (09


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IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS:This manual contains important safety and operating

instructions for Pathfinder 48V-3kW (24V-3kW) rectifier series.

1. Please read this manual thoroughly prior to use to become familiar with therectifier's numerous features and operating procedures. To obtain a maximum de-gree of safety, follow the sequences as outlined.

2. This manual provides warnings and special notes to the user. Points that are vitalto the proper operation or safety of the user display the heading: WARNING.

3. Before using the rectifier, read all instructions and cautionary markings on:

(1) rectifier, (2) the battery, and (3) the equipment connected to the rectifier.

4. Do not expose rectifier to rain or snow.

5. CAUTION - Unless otherwise noted, use of an attachment not recommended orsold by the rectifier manufacturer may result in a risk of fire, electric shock, or in-

jury to persons.

6. CAUTION - Do not operate the rectifier if it has received a sharp blow, beendropped, or otherwise damaged in any way return it to a qualified service cen-ter for repair.

7. CAUTION - Do not disassemble the rectifier take it to a qualified service centerfor servicing. Incorrect reassembling may result in a risk of electrical shock orfire and may void the warranty.


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Table of Contents

1.0 INTRODUCTION ..................................................................................................................11.1 Scope of the Manual .....................................................................................................................11.2 Argus Numbering System .............................................................................................................1

1.3 Notes to the User..........................................................................................................................11.4 Product Overview ..........................................................................................................................21.5 Part Numbers and List Options.....................................................................................................3

2.0 DESCRIPTION OF FEATURES, ALARMS AND CONTROLS...........................................42.1 Cabinet Features...........................................................................................................................42.1.1 Cabinet Descriptions ..............................................................................................................42.1.2 Cabinet Alarms.......................................................................................................................52.1.3 Remote Equalize Control .......................................................................................................52.1.4 Remote Monitoring and Control.............................................................................................52.2 Power Module Features ................................................................................................................52.2.1 LED Indicators........................................................................................................................52.2.2 OFF/ON (O/I) Button..............................................................................................................62.2.3 Liquid Crystal Display (Optional) ...........................................................................................62.2.4 Control Buttons (Included with LCD Option) .........................................................................7

2.2.5 True Module Fail Alarm .........................................................................................................72.2.6 Major/Module Fail Alarms ......................................................................................................72.2.6.1 Remote Shutdown............................................................................................................72.2.6.2 Output Fuse Open............................................................................................................72.2.6.3 Input Fuse Open ..............................................................................................................72.2.6.4 AC Mains Fail...................................................................................................................72.2.6.5 High Voltage Shutdown....................................................................................................72.2.6.6 Thermal Shutdown ...........................................................................................................82.2.6.7 UPF Fail / Primary Power Circuit Shutdown....................................................................82.2.6.8 No Output Power..............................................................................................................82.2.6.9 Local Shutdown................................................................................................................82.2.6.10 Start Delay........................................................................................................................82.2.7 Minor Alarms ..........................................................................................................................82.2.7.1 VAC Meter Fail.................................................................................................................82.2.7.2 AC Mains Low..................................................................................................................8

2.2.7.3 AC Mains High .................................................................................................................82.2.7.4 Fan Fail ............................................................................................................................92.2.7.5 Over Temperature ............................................................................................................92.2.7.6 Low Output Voltage..........................................................................................................92.2.7.7 Current Limiting/Short Circuit Protection..........................................................................92.2.7.8 Power Limiting..................................................................................................................92.2.7.9 Temperature Sense Fail...................................................................................................102.2.7.10 Fan Speed Error...............................................................................................................102.2.7.11 High Output Voltage.........................................................................................................102.2.7.12 Local Access Alarm (only with optional LCD)..................................................................102.2.7.13 Soft Start ..........................................................................................................................102.2.8 Over Voltage Protection (OVP) and High Voltage Shutdown (HVSD)..................................102.2.9 AC Inrush/Transient Suppression..........................................................................................102.2.10 Input/Output Fuses.................................................................................................................102.2.11 Demand Based Forced Cooling.............................................................................................112.2.12 Battery Eliminator Operation..................................................................................................112.2.13 Start Delay .............................................................................................................................112.2.14 Float/Equalize/Test Modes.....................................................................................................112.2.15 Security Access Codes..........................................................................................................11

3.0 INSTALLATION INSTRUCTIONS .......................................................................................123.1 Tools Required ..............................................................................................................................123.2 Inspection ......................................................................................................................................123.3 Preparation/Mounting ....................................................................................................................123.4 Cabinet Grounding, Wiring and Connections ...............................................................................133.4.1 Chassis Ground .....................................................................................................................13


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3.4.2 AC Feeder Protection/Sizing..................................................................................................133.4.3 AC Input Connections............................................................................................................133.4.4 DC Output Connections.........................................................................................................133.4.5 Alarm and Control Connections.............................................................................................143.4.6 Remote Communications Connections..................................................................................153.5 Initial Startup and Checkout..........................................................................................................15

4.0 OPERATION AND ADJUSTMENTS ...................................................................................16

4.1 Startup and Reset Procedure (after initial system installation) ....................................................164.2 Module Installation and Removal..................................................................................................164.2.1 Installing Power Modules .......................................................................................................164.2.2 Removing Power Modules .....................................................................................................164.3 Menu Structure..............................................................................................................................164.4 Normal Mode Operation................................................................................................................164.5 Menu Descriptions.........................................................................................................................174.5.1 Status Menu...........................................................................................................................174.5.1.1 Module ID #......................................................................................................................174.5.1.2 Module Settings (Float, Equalize, Slope, Current Limit, etc.)..........................................174.5.1.3 I/P V (Input Voltage).........................................................................................................174.5.1.4 Fan Speed........................................................................................................................174.5.1.5 Fan Set.............................................................................................................................174.5.1.6 Int. Amb Temp (Internal Ambient Temperature)..............................................................194.5.1.7 Heatsink Temp .................................................................................................................19

4.5.1.8 P/I Lim Alarm (Power/Current Limit Alarm) .....................................................................194.5.1.9 Remote Access ................................................................................................................194.5.1.10 Remote Adjust..................................................................................................................194.5.1.11 LCL Access Alm (Local Access Alarm) ...........................................................................194.5.1.12 Software Version ..............................................................................................................194.5.2 Adjustments Menu .................................................................................................................194.5.2.1 Float Voltage ....................................................................................................................194.5.2.2 Equalize Voltage ..............................................................................................................204.5.2.3 Slope % ............................................................................................................................204.5.2.4 Current Limit.....................................................................................................................204.5.2.5 Start Delay........................................................................................................................214.5.2.6 HV SD Level ADJ (High Voltage Shutdown Level Adjust) ..............................................214.5.2.7 Low O/P Alarm .................................................................................................................214.5.2.8 High O/P Alarm ................................................................................................................21

4.5.2.9 Backlite Tmout..................................................................................................................214.5.2.10 Temp Disp C/F.................................................................................................................214.5.2.11 Protected Adjustments .....................................................................................................224.5.2.12 P/I Limit Alarm (Power/Current Limit Alarm)....................................................................224.5.2.13 Equalize Timeout..............................................................................................................224.5.2.14 Display Calibrate ..............................................................................................................224.5.2.15 Local Access Alarm..........................................................................................................224.5.2.16 Set Security Code ............................................................................................................224.5.3 Remote Communications.......................................................................................................224.5.3.1 Remote Access ................................................................................................................224.5.3.2 Remote Adjust..................................................................................................................234.5.3.3 Module ID#.......................................................................................................................234.5.3.3 Baud Rate ........................................................................................................................234.5.4 Test Mode ..............................................................................................................................234.5.4.1 Manual Test......................................................................................................................23

4.6 Pathfinder Module Factory Defaults and Ranges.........................................................................244.7 Miscellaneous Defaults/Adjustments/Controls ..............................................................................254.7.1 Adjusting the LCD Viewing Angle..........................................................................................25

5.0 REMOTE COMMUNICATIONS............................................................................................265.1 Multiple Cabinet Connections (RS-485)........................................................................................265.2 Connecting the SM0X Panel (RS-485) .........................................................................................265.3 Communications using a PC/Terminal (through SM0X RS232)...................................................275.4 Remote Terminal Status Screen...................................................................................................28

6.0 MAINTENANCE & SERVICE...............................................................................................296.1 Maintenance ..................................................................................................................................29


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6.2 Service...........................................................................................................................................306.2.1 Tools Required.......................................................................................................................306.2.2 Fan Replacement...................................................................................................................306.2.3 Fuse Replacement .................................................................................................................316.2.3.1 AC Fuse Replacement .....................................................................................................316.2.3.2 DC Fuse Replacement.....................................................................................................326.2.4 MOV Replacement.................................................................................................................32

List of Figures

Figure 1 - Front View of Pathfinder 48V-3kW Cabinet (with modules) ............................................2Figure 2 - Front View of Pathfinder 48V-3kW Modules .....................................................................2Figure 3 - Front View of Pathfinder 48V-3kW Cabinet (modules removed) ....................................4Figure 4 - Module Performance with Power Limiting ........................................................................9Figure 5 - Rear Bus Bar Configuration................................................................................................14Figure 6 - Side Access Termination ....................................................................................................14Figure 7 - Pathfinder LCD in Normal Mode.........................................................................................17Figure 8 - Pathfinder Menu Tree ..........................................................................................................18Figure 9 - Pathfinder Communications Connections ........................................................................26Figure 10 - Remote Terminal Screen ...................................................................................................28Figure 11 - Fan Removal .......................................................................................................................30Figure 12 - Pathfinder Cabinet (rear view, cover removed) ..............................................................31Figure 13 - Detail of Fuse Placement ..................................................................................................31

List of Tables

Table 1 - Alarm and Control Wiring Connections ..............................................................................15Table 2 - Adjustments Menu Defaults .................................................................................................24Table 3 - Remote Communications Menu Defaults............................................................................24Table 4 - Test Menu Defaults................................................................................................................24

Table 5 - Navigation and Status Commands ......................................................................................27


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1.0 INTRODUCTION

1.1 Scope of the Manual

This instruction manual explains the installation, interconnection and operation of ArgusTechnologies' Pathfinder 48V-3kW (24V-3kW) modular, switched mode rectifier systems.

The topics covered include: product specifications, features, installation and configuration,operation and maintenance. To aid the user with installation and operation, frequent refer-ence is made to fold-out drawings located in the rear of the manual.

NOTE: All references to the Pathfinder 48V-3kW (i.e. 48 VDC output) rectifier systemwithin this manual also include the Pathfinder 24V-3kW (i.e. 24 VDC output) rectifiersystem, unless specified otherwise.

1.2 Argus Numbering System

Argus Technologies uses an eight digit drawing number system which is broken into threeblocks. The first three digits describe the category of the product: i.e. rectifier or converter.The next three digits indicate the sequence in which the product number was allocated inthat particular category. The last two digits indicate the type of drawing; e.g.:

05 ........Schematic06 ........Outline Drawing08 ........Customer Connections Drawing20 .......Main Assembly

Argus Technologies uses an eight digit part numbering system for all components and subassemblies. Each part is referenced by its own unique number.

1.3 Notes to the User

This manual has special notes for the user. Points that are important to the performance orease of use of the equipment are covered by a notation that is in Bold Italic typeface.

ARGUS TECHNOLOGIES 010-537-C0 Rev C Page # 1 of 32


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1.4 Product Overview

The Pathfinder 48V-3kW (24V-3kW) rectifier system uses a high frequency, switched modeconversion technique to provide a fully regulated and isolated DC output from the ACmains. A complete rectifier system consists of one or more power modules and a commoncabinet enclosure. Rectifier power modules are hot swappable meaning they can be in-

serted or removed from the cabinet without cutting power to or from the system or the load(see rectifier removal procedure in installation section for more details). Additional powermodules can be included with the system at time of ordering or added after the cabinet hasbeen installed. The cabinet has connections for AC input, DC output, and variousalarm/control relays. It also includes two RS-485 connectors for communications with theSM0X series of supervisory control panels as well as other rectifier cabinets.

The Pathfinder 48V-3kW (24V-3kW) rectifier system is designed to operate with Argus SMseries of intelligent supervisory control panels. This allows the user to setup, control andmonitor the entire power system and ancillary components from one central, easy-to-usesource.

010-537-C0 Rev C Page # 2 of 32 ARGUS TECHNOLOGIES

FIGURE 1 - FRONT VIEW OF PATHFINDER 48V-3KW CABINET(WITH MODULES)

FIGURE 2 - FRONT VIEW OF PATHFINDER 48V-3KW MODULES


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Pathfinder power modules can be adjusted and monitored locally with the inclusion of anoptional LCD and control-key interface.

The Pathfinder systems use positive ground only.

1.5 Part Numbers and List Options

The Pathfinder 48V-3kW (24V-3kW) is available with the following part numbers and list op-tions:

Description Part Number/List Option

Pathfinder 48V-3kW power module ...............................010-537-20Pathfinder 24V-3kW power module ...............................010-539-20Basic unit................................................................................*List 0Standard temperature, 0 to +65 Deg. C ...............................List 40Extended temperature, -40 to +65 Deg. C............................List 42Gray finish..............................................................................List 55No LCD..................................................................................List 80

With LCD ...............................................................................List 81

Pathfinder 19 cabinet....................................................030-594-2024 VDC/110A output ...............................................................List 148 VDC/55A output .................................................................List 2Center mount........................................................................*List 19Flush mount (optional for 19)...............................................List 21Gray finish..............................................................................List 55DC rear output adapters........................................................List 81DC output blank plate............................................................List 90Power module blank plate.....................................................List 91

Pathfinder 23 cabinet....................................................030-577-2024 VDC/110A output ...............................................................List 148 VDC/55A output .................................................................List 2Center mount........................................................................*List 23Flush mount (optional for 23)...............................................List 25Gray finish..............................................................................List 55DC rear output adapters........................................................List 81DC output blank plate............................................................List 90Power module blank plate.....................................................List 91

DC side output adapter kit (optional).............................037-007-20DC rear output adapter cover kit ...................................037-008-20

* Default option

The above information is valid at time of publication. Consult factory for up-to-date ordering information.



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2.0 DESCRIPTION OF FEATURES, ALARMS AND CONTROLS

2.1 Cabinet Features

The Pathfinders cabinet contains connections for up to four rectifier power modules, AC in-put, DC output, several remote alarm/controls, and RS-485 communications. When the

power modules are removed from the cabinet, all cabling connections to the cabinet arefront-accessible with exception of DC outputs. DC connections are made at the rear of thecabinet to easily accomodate direct connections to vertical bus bars. An optional kit is avail-able if side output adaptors are desired.

2.1.1 Cabinet Descriptions

A brief description of each cabinet feature is described below:

1 Module Negative ( - ) Bus Bar Connection

2 Module Positive ( + ) Bus Bar Connection

3 48/24 VDC Polarizing Pin

4 Module AC Input Connector

5 Module Control/Alarm Connector

6 Cabinet AC Wireway Cover (Removable)

7 Side Output Adapters for DC Connections (Optional Kit)

8 Universal Mounting Bracket

* Not all features appear as displayed on all models.


FIGURE 3 - FRONT VIEW OF PATHFINDER 48V-3KW CABINET (MODULES REMOVED)


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2.1.2 Cabinet Alarms

The 23 cabinet has four rectifier fail alarms RF1, RF2, RF3, RF4. The 19 cabinet hasthree. Each alarm is associated with a rectifier power module (i.e. Power module 1 is forRF1, etc.). Alarms are extended from the cabinet for remote monitoring. These alarms alluse the same common signal output and provide contact closure in an alarm condition.

All alarms are real time and therefore do not latch. The alarm contacts are fail safe andwill extend an alarm even without a DC power source. See drawings 030-577-08 and 030-594-08 at the rear of the manual for alarm terminal locations.

2.1.3 Remote Equalize Control

A remote equalize control is available on the cabinet for placing the power modules inequalize mode. This feature operates when a positive or negative DC signal is applied tothe REQ terminal.

2.1.4 Remote Monitoring and Control

All local controls and monitoring is accessible via the RS-485 serial communications inter-

face. The Pathfinder cabinet provides two connections for serial communications with otherrectifier cabinets as well as supervisory and control panels. This allows rectifier cabinets tobe interconnected or daisy-chained together.

2.2 Power Module Features

The power module converts AC line voltage ranging from 176 to 275 VAC to 48 or 24 VDC.The following section details the various features of the power modules:

2.2.1 LED Indicators

The LED indicators provide visual indication of module operational status and alarms. The

indicators and associated colors are as follows:

AC Mains OK (Upper Green LED)This indicator illuminates when AC input to the Pathfinder is within the valid range (176 -275 VAC). It will flash when out of the normal range, see below.

Flashing AC Mains OK (Upper Green LED)The upper green LED will flash when the input voltage is out of range, but the unit willcontinue to operate down to 70 VAC, (i.e. Current limit gradually reduces automatically toapprox. 50% of max. load). Below this point, the module will shutdown, indicating an ACMains Fail condition.

Module ON/OK (Lower Green LED)The lower green LED illuminates when the module is running and sourcing power nor-mally. The indicator will turn off under the following conditions:

Remote or local shutdown

Over voltage protection (OVP) shutdown

Thermal shutdown

Startup pending


AC

ON

AC


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Flashing Module On (Lower Green LED)The lower green LED will flash once for every 20% (approx.) of the max. output current(70A for 48V unit, 140A for 24V unit). To view output current while the module is online,quickly press and release the power button.

Module FAIL/Major Alarm (Red LED)

This indicator illuminates if the module is unable to source power or experiences any of thefollowing conditions:

Remote or local shutdown

Output or input fuse blown

AC Mains Input Fail

OVP shutdown

Thermal shutdown

UPF fail

No output power

Startup pending

Over temperature standby

Minor Alarm (Flashing Red LED)

The red LED will flash during the following conditions: VAC meter fail

AC mains input low

AC mains input high

Fan fail

Over temperature

Low output voltage

Current limit

Temperature Sense Fail

Fan speed error

High output voltage

Menu access from local display

Soft start

2.2.2 OFF/ON (O/I) Button

The front panel off/on button shuts down the output power from the module. Thebutton is also used to read the modules output current. To get a reading of output current,quickly press and release the power button. The lower green LED will flash for every 20%(approx.) of maximum output current. To shut the module down, press and hold the buttonfor 3 seconds and release. Pressing and holding the button for longer than five seconds(and releasing) causes the module to shutdown and then restart immediately the Path-finder interprets this as a remote signal to turn the unit on.

2.2.3 Liquid Crystal Display (Optional)

Pathfinder modules can be equipped with a 2 x 16 character liquid crystal display (LCD)panel for local control and monitoring. This enables all the modules operating parameters,status and alarms to be viewable from this display.


FAIL

FAIL

ON


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2.2.4 Control Buttons (Included with LCD Option)

Modules with the LCD option have three control buttons located on the front panel. They

are labeled with an up arrow ( ), down arrow ( ) and a curved arrow ( ). The up anddown arrow buttons allow the user to scroll through the software menus and adjust values,whereas, the curved arrow button allows the user to enter functions and switch between

float and equalize modes.

2.2.5 True Module Fail Alarm

The power modules have a true fail alarm. This provides a true indication of the powermodule's ability to source current. When the module's output current drops below 2.5% ofthe rated output, the Module Fail detection circuit is activated. This circuit momentarilyramps up the output voltage to determine if the module will source current. If no increase incurrent is detected, the Module Fail and No Output Power alarms are activated. The mod-ule will test every 60 seconds for the condition until current is detected. Output voltageramping will cease upon detection of current. A minimum 2.5% load is required to avoid theNo Output Power alarm. Activation of this alarm could indicate a failed module or a failedload.

2.2.6 Major/Module Fail Alarms

These alarms signify a complete failure or shutdown of the module. All the alarm conditionsunder this section are classified as major alarms.

2.2.6.1 Remote Shutdown

A module will turn off and extend an alarm when it receives a remote shutdown sig-nal from the SM supervisory panel.

2.2.6.2 Output Fuse Open

This alarm indicates the modules output fuse has blown.

2.2.6.3 Input Fuse Open

This alarm indicates the modules input fuse has blown.

2.2.6.4 AC Mains Fail

This alarm is generated when the AC input voltage drops below 50V.

2.2.6.5 High Voltage Shutdown

This alarm is generated when the module enters HVSD mode (see OVP section).



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2.2.6.6 Thermal Shutdown

A module will shutdown and extend an alarm if the internal ambient temperature ex-ceeds 75C (167F). The module will restart when the ambient temperature dropsbelow 70C (158F). The module will also shutdown if the heatsink temperature ex-

ceeds 130C (266F). When the heatsink temperature is


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2.2.7.4 Fan Fail

This alarm is generated when the fan has failed. The condition must exist for 20seconds before the alarm is extended.

2.2.7.5 Over Temperature

Each module is protected in the event of an extreme increase in heatsink tempera-

ture. When the heatsink temperature exceeds 100C, the module's output current isreduced by 3.5% of maximum output current per C to keep the temperature of thepower semiconductors within operating limits until maximum reduction at 115C.Beyond this point the module goes to standby mode. Normal capacity will be re-turned automatically when the heatsink temperature is reduced below 100C.

2.2.7.6 Low Output Voltage

This alarm is generated when the DC output voltage drops below the LVA setting.The alarm will clear when the voltage is 1V above the LVA setting for the 48V-3kW(and 0.5V above the LVAs setting for the 24V-3kW).

2.2.7.7 Current Limiting/Short Circuit Protection

Each module has an adjustable current limit range between 18 to 70A (36 to 140Afor Pathfinder 24V-3kW). Maximum output current is constant up to short circuitconditions. The current limit function determines the maximum output current limit ofthe module, regardless of output voltage or power.

2.2.7.8 Power Limiting

Each module is designed to limit power output to the 3000W rating ( 100W). Thisenables more current to be supplied at lower voltages, which in turn reduces the

time needed to recharge a discharged battery.


FIGURE 4 - MODULE PERFORMANCE WITH POWER LIMITING


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2.2.7.9 Temperature Sense Fail

This alarm is generated if any of the DC/DC converters internal temperature sen-sors fail.

2.2.7.10 Fan Speed Error

This alarm is generated when the fan is sending an incorrect signal. The modulewill continue to run normally during this condition.

2.2.7.11 High Output Voltage

This alarm is generated when the DC output voltage increases above the HVA set-ting. The alarm will clear when the voltage drops 1V below the HVA setting for the48V-3kW (and 0.5V below the HVA setting for the 24V-3kW).

2.2.7.12 Local Access Alarm (only with optional LCD)

This alarm is generated when the front panel is displaying access to a menu item.

2.2.7.13 Soft Start

To eliminate an instantaneous demand on the AC source, a soft start feature is em-ployed. Soft Start, sometimes referred to as current walk-in, works by graduallyramping the current limit up from zero to the actual or defined customer setting. Theoutput voltage is ramped up from the stand-by voltage to the float voltage. The out-put current then increases at a rate of 5A per second for the 48V-3kW (10A persecond for the 24V-3kW) module.

2.2.8 Over Voltage Protection (OVP) and High Voltage Shutdown (HVSD)

The Over Voltage Protection (OVP) and High Voltage Shutdown (HVSD) feature pro-vides protection to the load from over voltage conditions originating from the rectifiers. It op-erates by shutting down the offending module when a high output voltage condition occurs.Indication is through a red LED. Modules will restart automatically when the OVP conditionclears. However, if a backup power source is connected, and more than three over voltageconditions occur in one minute, the module will latch and remain shutdown (HVSDcondition) until it is reset. When in HVSD pressing and releasing the O/I switch will restartthe unit.

2.2.9 AC Inrush/Transient Suppression

The modules' inrush current is limited to less than three times the nominal line current toprevent surges on the AC line. Modules are capable of withstanding input lightning and

transient surges in accordance with IEEE/ANSI C62.41 Category B3.

2.2.10 Input/Output Fuses

Each module is equipped with fuses. Abnormal or fault conditions may blow the input oroutput fuse causing the red Module Fail LED to illuminate.



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2.2.11 Demand Based Forced Cooling

Each module is equipped with a rear-mounted fan. The fan operates at temperatures above

0C. It will adjust its speed automatically based on the temperature of the air flow throughthe fan module. Cooling of the unit is front to rear with the hot exhaust on the back.

2.2.12 Battery Eliminator Operation

Modules maintain all specifications (except where indicated) with or without a battery at-tached to the output. However, if a battery or another unit in parallel is not present, therewill be no monitoring or control activity if there is an AC power failure.

2.2.13 Start Delay

The modules are equipped with a delay timer in order to stagger start a series of modulesto prevent excessive loading of generators upon start up. The built-in timer delays the ACstart of the module depending on the value programmed. A minimum five second delay ispreset to allow charging of the input capacitors.

2.2.14 Float/Equalize/Test Modes

Modules can operate in one of three modes at any given time. The float mode is the defaultoperating mode, where the rectifiers are supplying normal output power to the load and/orbatteries. The equalize mode is used when boost charging batteries. Lastly, the test modeoffers an extended voltage range for testing special functions such as the LVD.

NOTE: Exercise caution when using the Manual Test function in test mode. Adjust-ments to this feature will directly effect the modules output voltage and couldresult in a disruption of service. For example, decreasing the voltage belowthe LVD setting will engage the LVD and potentially cut power to the load.

2.2.15 Security Access Codes

An adjustable three digit security code can be programmed into the Pathfinder modules toprevent access to critical control functions from unauthorized users.



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3.0 INSTALLATION INSTRUCTIONS

This section is provided for qualified personnel to install and interconnect to the supervisorypanel.

3.1 Tools Required

Slotted screwdriver (Blade size 1/4")

#2 Phillips screwdriver (Tip size 3/16")

4-1/2 digit digital voltmeter

Cutters and wire strippers (#10 to #22 AWG) [6 to 2.5 mm2

]

Adjustable 24/48 VDC load (optional)

Crimper (optional for large gauge wire)

Combination wrenches (Imperial measure)

3.2 Inspection

All Argus products are shipped in rugged, double-walled boxes and suspended via solid in-

serts to minimize shock that may occur during transportation. Package assemblies andmethods are tested to National Safe Transit Association (NSTA) standards.

Before uncrating the unit, look for signs of damage to the shipping container. Next, uncratethe unit and inspect the exterior. If any damage is observed, contact the carrier immediate-ly. Continue the inspection for internal damage. In the unlikely event of internal damage,please inform the carrier and contact Argus Technologies for advice on the impact of thedamage.

NOTE: Save the original shipping container. If the unit needs to be returned forservice, it should be packaged in its original shipping container. If theoriginal container is unavailable, make sure the unit is packed with at

least three inches of shock-absorbing material to prevent shipping dam-age. Argus Technologies is not responsible for damage caused by the im-proper packaging of returned units.

3.3 Preparation/Mounting

The rectifier cabinet has been designed for mounting in a standard 19 or 23 EIA relayrack. Mounting brackets accommodate both 1 or 1-3/4 rack spacing. The cabinet shouldbe mounted to the rack using two, #12 24 x 1/2" screws in each bracket. A Philips-typescrewdriver should be used to eliminate the possibility of slippage and scratching of theunit's exterior.

The Pathfinder cabinet should be mounted in a clean and dry environment. Also, make surethere is sufficient space in front and behind the unit for ease of access and unrestricted air-flow.



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3.4 Cabinet Grounding, Wiring and Connections

WARNING: Hazardous AC voltages are present. Ensure powerat the AC service panel is off before attempting work on theAC connections. Use a voltmeter to verify the absence of volt-age. Clearly mark the correct polarity of the battery leads be-

fore commencing work on DC connections.

NOTE: Connections to the rectifier system should comply with all local electricalcodes and ordinances.

3.4.1 Chassis Ground

The rectifier cabinet (or chassis) must be connected to the AC service ground for safety.This is accomplished by connecting the ground green lead of the AC input cable to the

terminal marked with the ground symbol (see drawing 030-577-08, sheet 2 for details).

3.4.2 AC Feeder Protection/Sizing

Each power module should have a dedicated protection breaker. The feeder breaker actsas the disconnect device for the associated module. See specifications section at the begin-ning of the manual for recommended feeder breaker and wire gauge sizes.

3.4.3 AC Input Connections

NOTE: AC input wires should be tightly bundled and routed as far away as possiblefrom the DC power wires to minimize EMI disturbances.

Remove all modules from the cabinet. Remove the metal cover from the cabinet backplaneto expose the AC input terminals TB1, TB2, TB3 and TB4. Each terminal relates to an indi-vidual power module.

The wireway is designed for 3/4 cable knockouts. Attach the cable connectors to the wire-way hole and route the AC cables through the holes. Secure the wires to the AC input ter-minals as required. Tighten the cable connector to the AC cable (conduit similar) [seedrawing 030-577-06 for more information].

3.4.4 DC Output Connections

WARNING: Leave cables disconnected at battery and verifyoutput polarity using a voltmeter. Make battery connectionsonly after all other wiring is completed.



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NOTE: DC output wire must be UL approved File # B64801, XHHW or RHH/RHW (forCanadian users; RW90 Type). Control and sense wires must be UL approvedStyle 1015 (for Canadian users; TEW type).

DC output cables can be connected through the rear of the cabinet, or at the side. A sideoutput adapters kit (037-007-20) is available for connection convenience [48V List 2 only for23 cabinet](see drawing 030-577-08, sheet 1 for details).

Terminate cables leads with appropriate crimp lugs. Secure the positive and negative cableto the cabinet output post of the same polarity (i.e. +Vcable to +Vpost). Install the washersand nuts on top of the lugs in the same order in which they were shipped from the factory.Tighten the post nuts as per customer connections drawing 030-577-08.

3.4.5 Alarm and Control Connections

See drawing 030-577-08, sheets 1 and 2 for location of alarm and control terminals. Inserteach wire into the appropriate terminal on TB5 and tighten. Route the alarm and control ca-bles through the alarm wireway on the rear of the cabinet to the monitoring/control equip-ment as needed.


FIGURE 5 - REAR BUS BAR CONFIGURATION FIGURE 6 - SIDE ACCESS TERMINATION


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TABLE 1 - ALARM AND CONTROL WIRING CONNECTIONS

TERMINAL LABEL ALARM DESCRIPTION DEFAULT SIGNAL TYPE

RF1 Module Fail 1 Alarm NC*

RF2 Module Fail 2 Alarm NC*RF3 Module Fail 3 Alarm NC*

RF4 Module Fail 4 Alarm NC*

RFC Module Fail Common COM**

REQ Remote Equalize Control Input Neg (-) or Pos (+)

REQC Remote Equalize Common COM

NOTES: * RF1-4 are open and contacts will close upon alarm condition.** RF1-4 relay contact commons are connected together and are available as RFC.

3.4.6 Remote Communications Connections

See remote communications section for details on remote communications connections.

3.5 Initial Startup and Checkout

After completing the system wiring and installation, perform the following startup and testprocedure to ensure proper operation.

(1) Ensure all power modules are removed from the cabinet. Verify correct output polarity using a voltmeter, and connect battery (if required) to the output ofthe system.

(2) Install power modules (see section 4.2 for details) and verify that the ModuleFail LED(s) illuminate (assuming a battery is connected to the system providingbackup power). This indicates correct output polarity.

(3) Verify AC input voltage is correct and turn on each AC input feeder breaker(s).The AC and ON LED(s) should illuminate and system will begin charging bat-teries.

(4) Test functionality of various module alarms and controls (see operations/adjust-ments section for details). In addition, perform a load test with the system usinga resistive loadbox.

(5) In the adjustments menu, set float and equalize voltage to the levels specifiedby the battery manufacturer (see operations/adjustments section for details onfloat adjustment).



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4.0 OPERATION AND ADJUSTMENTS

4.1 Startup and Reset Procedure (after initial system installation)

When the Pathfinder module is powered-up or reset, it will display the corporate name andproduct serial number and various identification messages. The three front panel LEDs will

illuminate, however the FAIL LED should extinguish after the system has finished its softstart procedure. Next, the LCD will display the module's parameters as shown in Figure 7 inNormal operating mode.

4.2 Module Installation and Removal

WARNING: Turn unit off before removing.

WARNING: Do not force a module into position if it does notseat properly. All units are keyed to ensure that the correctmodule type is used.

4.2.1 Installing Power Modules

To insert a power module, place it on the cabinet bottom and slide into the rear connectorin the backplane. Ensure that you tighten the bottom screws to the cabinet. The mod-ule will automatically power up within seconds.

4.2.2 Removing Power Modules

Press and hold the O/I button for at least three seconds this shuts down the mod-ules output power. Loosen the two screws on the bottom of the module faceplate, grasphandle firmly and pull out of the cabinet. Wait two minutes for all LEDs to extinguish beforehandling.

4.3 Menu Structure

On the Pathfinder version with no LCD, the menu interface is only available remotelythrough the SM0X supervisory panel or a computer terminal emulation program (refer tothese product manuals for more information on the user interface). In both the PathfinderLCD and no LCD version, the menu structure consists of two basic components: Menu

Categories and Sub-Menu Items. To scroll through these items, press the and

buttons to display the correct item and then the button to select that item/enter a sub-menu (this procedure is the same for both the Pathfinder and the SM0X supervisory panel).

4.4 Normal Mode Operation

The Pathfinders default operation is in Float mode. The module ON LED and AC LED is il-

luminated and various identification messages are displayed on the LCD. See Figure 7 for asample screen.

When a user attempts to scroll through the menu, he will be prompted to enter a passwordbefore entering some submenus. See Figure 8 for locations. Once the correct password isverified, access will be granted. If no password is entered, the user will not gain access.



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4.5 Menu Descriptions

The following section describes each of the Pathfinders menu items, including alarms, con-trols and configuration items. They are arranged as they would appear in the LCD menu.For a graphical representation of the Pathfinder software, command and menu structure,refer to the menu tree (Figure 8).

4.5.1 Status Menu

This menu category is used for reviewing module setup and status information.

4.5.1.1 Module ID #

Displays the assigned module identification number. Modules with the LCD optionare assigned a factory default identification number of 01. The ID number is usedfor remote communications only. No user intervention is required for systems using

the SM0X supervisory panel.

4.5.1.2 Module Settings (Float, Equalize, Slope, Current Limit, etc.)

This function allows the user to scroll through the various power system parame-ters. See Figure 8 for a detailed list.

4.5.1.3 I/P V (Input Voltage)

Displays the AC input voltage to the module.

4.5.1.4 Fan Speed

Displays the off/on status of the fan speed function.

4.5.1.5 Fan Set

Displays the off/on status of the fan.


FIGURE 7 - PATHFINDER LCD IN NORMAL MODE


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MODULE ID# =MODULE SETTINGSI/P V =FAN SPEED =FAN SET =INT AMB TEMP =HEATSINK TEMPI LIM ALARMREMOTE ACCESSREMOTE ADJUSTLCL ACCESS ALMSOFTWARE VX.XXRETURNEXIT

REMOTE ACCESSREMOTE ADJUSTMODULE ID#

BAUD RATERETURNEXIT

MANUAL TESTEXIT

PROMPT

FOR

PASSWORD

FLOAT = XX.XVEQUALIZE = XX.XVSLOPE = X.XX%CUR LIM = XXXASTRT DLAY = XXXsO/P HV = XX.XVLOW O/P = XX.XVHIGH O/P = XX.XVBKLT TO = XXminEQ TMOUT = XXXhrRETURNEXIT

FLOAT VOLTAGEEQUALIZE VOLTAGESLOPE %CURRENT LIMITSTART DELAYHV SD LEVEL ADJLOW O/P ALARMHIGH O/P ALARMBACKLITE TMOUTTEMP DISP DEG C/FPROTECTED ADJUSTRETURNEXIT

P/I LIMIT ALARMEQUALIZE TIMEOUTDISPLAY CALIBRATELOCAL ACCESS ALRMSET SECURITY CODERETURNEXIT

PROMPT

FOR

PASSWORD

PROMPT

FORPASSWORD

FIGURE 8 - PATHFINDER MENU TREE


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4.5.1.6 Int. Amb Temp (Internal Ambient Temperature)

Displays the internal air temperature of the module.

4.5.1.7 Heatsink Temp

Displays the converters heatsink temperature.

4.5.1.8 P/I Lim Alarm (Power/Current Limit Alarm)

Displays the enable/disable status of the current/power limit alarm.

4.5.1.9 Remote Access

Displays the enable/disable status of the remote access function. This function is al-ways enabled if no LCD is installed.

4.5.1.10 Remote Adjust

Displays the enable/disable status of the remote adjust function. This function is al-ways enabled if no LCD is installed.

4.5.1.11 LCL Access Alm (Local Access Alarm)

Displays the enable/disable status of the local access alarm. Setting has no effect ifno LCD is installed.

4.5.1.12 Software Version

Displays the current software version onboard the power module.

4.5.2 Adjustments Menu

This menu category consists of functions that can be adjusted by the user. It includes floatand equalize voltage, slope, current limit, alarms, etc. See Table 2 for default settings andranges for each item below.

4.5.2.1 Float Voltage

This is the modules default mode at startup and during normal system operation.This mode is indicated by the FL on the LCDs upper left corner. The float voltagecannot be changed when a module is off or in equalize mode. Similarly, it cannotbe increased while the module is in current or power limit an error message will

result.

Float voltage should be adjusted to the level recommended by the battery manufac-turer.

NOTE: Since all modules are connected in parallel local adjustment of modules willcause interaction between units.



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To adjust float voltage follow the steps below:

1. Measure the battery voltage with a multimeter at the battery output posts or

with the power systems meter.

2. Scroll to the float voltage item in the ADJUSTMENTS menu (Make sure the

module is in float mode).3. Using the arrow keys, adjust each modules float voltage up or down until the

battery voltage is set to the desired level. Avoid putting the modules in current

limit during this procedure.

4. Once the battery voltage is correct, fine tune the each modules output voltages

to balance the current outputs equally.

5. With the multimeter, check that the battery voltage is correct.

4.5.2.2 Equalize Voltage

The equalize mode is used to equalize or boost charge a battery string. It is indi-cated by the EQ on the LCDs left corner. This mode can be selected by pushing

the button and holding (for more than 3 seconds) while in normal operatingmode, or via a remote command through the serial port, or remote hardware signalthrough the REQ terminal. The equalize voltage cannot be changed if the module isoff and cannot be increased while in current or power limit an error message willresult.

Scroll to the Equalize item in the ADJUSTMENTS menu and follow the same seriesof steps as described above for the float voltage.

4.5.2.3 Slope %

This function allows the user to adjust the slope percentage. Output slope is amethod of load sharing which operates by altering the output voltage regulation ofthe Pathfinder module. Output slope is factory default at 1% and it is recom-mended to leave it at that value. Slope settings must be the same for all rectifiersin that system and should be 1%.

NOTE: Set slope before float or equalize adjustments.

4.5.2.4 Current Limit

This function allows the user to program the setting at which the current limit func-tion engages. If the output current reaches this level, the output voltage will de-crease and subsequently limit the output current of the module. A current limit alarmwill also be extended. If the module is driven far into current limit, the output voltagemay decrease to the point of a LOW O/P VOLTAGE alarm. During a MODULEFAIL condition, the CURRENT LIMIT alarm may be activated. This may indicate ahigh current condition inside the module.



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4.5.2.5 Start Delay

The modules are equipped with a delay timer in order to stagger start a series ofmodules to prevent excessive loading of standby generators upon start up. Thetimer delays the AC start of the module depending on the value programmed. Delaytimes range from 5 - 250 seconds in 5 second multiples. A minimum five second

delay is preset to allow for charging of the capacitors. Delay is initiated upon appli-cation of AC. At the end of the delay period Soft Start is initiated and the modulegoes into Float mode by default. When active, the message START DELAY and thetime remaining are displayed on the LCD. The START DELAY message is ex-tended remotely in the Operation Status section of the Status screen. There is nodelay when the module is returning to operation after a remote shutdown signal re-

moval. The count can be aborted locally by pressing the key (local entry ofequalize is inhibited during delay start). The count can also be remotely activatedby toggling the remote shutdown control signal.

4.5.2.6 HV SD Level ADJ (High Voltage Shutdown Level Adjust)

This feature provides protection to the load from over voltage conditions originating

from the power system. OVP cannot be adjusted while the PathFinder is operatingin current limit or power limit. Minimum OVP adjustment is either the Float orEqualize level plus 1.0V, which ever is higher. OVP trigger hysteresis is 1.0V. TheModule Fail LED will turn on and the Module Fail Relay will de-energize. The O/PHV SHUTDOWN and MODULE FAIL alarms will be extended remotely. The overvoltage shutdown feature of the PathFinder is selective and operates at 5% highervoltage in a less than 2.5% load condition.

4.5.2.7 Low O/P Alarm

This function allows the user to program the setting for the low output voltagealarm. When the output of the module drops below this level, the LOW O/PVOLTAGE alarm will be extended remotely. The alarm has a fixed hysteresis of

1.0V for 48V units and 0.5V for 24V units. When the output rises the hysteresisvoltage above this level, the alarm extinguishes.

4.5.2.8 High O/P Alarm

This function allows the user to program the setting for the high output voltagealarm. When the output of the module rises above this level, the HIGH O/PVOLTAGE alarm will be extended remotely. The alarm has a fixed hysteresis of1.0V for 48V units and 0.5V for 24V units. When the output level the hysteresisvoltage below this level, the alarm extinguishes.

4.5.2.9 Backlite Tmout

This function allows the user to adjust the duration that the LCD backlight stays onafter the last keypress.

4.5.2.10 Temp Disp C/F

This function allows the user to toggle the display of ambient and heatsinktemperature values between the Celsius and Fahrenheit scales.



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4.5.2.11 Protected Adjustments

This function allows the user to enter a list of password protected settings.

4.5.2.12 P/I Limit Alarm (Power/Current Limit Alarm)

When enabled, power limit and current limit conditions cause the Minor Alarm to beactivated. The POWER LIMIT and CURRENT LIMIT alarms are extended remotely.This control toggles between the enabled and disabled states. Setting does notaffect flashing "pl" & "cl" indicators which are always enabled.

4.5.2.13 Equalize Timeout

This adjusts the maximum time that the module will remain in equalize mode whenequalize mode is selected locally or from the equalize key on the SM0X front panel.Equalize time-out is overridden by the remote equalize signal.

4.5.2.14 Display Calibrate

This function allows increases/decreases to output voltage display calibration offset.

4.5.2.15 Local Access Alarm

When this function is enabled, activity of the module control keys in theADJUSTMENTS, REMOTE COMMUNIC and TEST MODE menus causes theMinor Alarm to be activated. The control toggles between the enabled and disabledstates.

4.5.2.16 Set Security Code

This function allows the user to set the security codes for access to the Protected

Adjust, Remote Communication and TEST menus. The security code is set onedigit at a time with the or keys until the desired number is displayed and the

key is used to select the number. Anytime a menu item that requires a passwordis selected, the message SECURITY = - - - will show and the first dash will bereplaced with a zero as the first digit.

4.5.3 Remote Communications

This menu category consists of functions and controls related to remote communicationsbetween the module and a SM0X supervisory panel, a computer terminal emulation pro-gram, etc.

4.5.3.1 Remote Access

This function allows the user to enable/disable access to the module from a remoteunit. It is always enabled on modules with no LCD.

When set to LOCKOUT: All remote communications are disabled by this selection.If baud rate is set correctly, the module always responds "REMOTE LOCKOUT" toany received communication.



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4.5.3.2 Remote Adjust

This control allows the user to enable/disable remote adjustment control from spe-cific menus. It is always enabled on modules with no LCD.

When set to ACCESS: Full access is granted to all Setup, Adjustment and Remote

Communication menu items.

When set to LOCKOUT: Access is allowed only to the Status menu; accessing theStatus menu causes the Status screen to be transmitted. Access is not allowed tothe Adjustments and Test Mode menus; accessing the these menus causes thePathFinder to respond with "ADJUST LOCKOUT".

Access must be allowed to the Remote Communications menu. The PathFindersecurity code is required to make any changes.

4.5.3.3 Module ID#

This control allows the user to set the module ID#. In order for a module to be cor-rectly identified for remote communications, every module on the same RS-485 busmust be assigned a unique identification number. If two modules have the sameID#, a line conflict will occur which will result in garbled communications.

4.5.3.3 Baud Rate

This control allows the user to set the baud rate for communications between themodule and a remote unit.

4.5.4 Test Mode

This menu category consists of a manual test function. It enables operators to check the

functionality of the output voltage.

4.5.4.1 Manual Test

The simulated output voltage is adjusted by pressing the and buttons on thefront panel. Manual Test mode is indicated by the "MT" beside the output voltagedisplay. The purpose of this function is to provide an extended operating voltagerange for testing power system parameters.

NOTE: Exercise caution when using the Manual Test function in test mode. Adjust-ments in this mode will directly effect the modules output voltage and couldresult in a disruption of service. For example, decreasing the voltage belowthe LVD setting will engage the LVD and potentially cut power to the load.



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4.6 Pathfinder Module Factory Defaults and Ranges

TABLE 2 - ADJUSTMENTS MENU DEFAULTS

Submenu Item Programmable Range Default Setting(24VDC Systems) Default Setting(48VDC Systems)

Float Voltage 24.0 - 29.0V standard21.0 - 28.0V extended(24V-3kW)48.0 - 58.0V standard42.0 - 58.0V extended(48V-3kW)

27.0V

54.0V

Equali ze Voltage 25.0 - 31.0V (24V-3kW)50.0 - 62.0V (48V-3kW)

27.5V55.0V

Slope % 0.2 - 2% 1% 1%

Current Limit 36 - 140A (24V-3kW)18 - 70A (48V-3kW)

140A70A

Start Delay 5 - 250 seconds 5 5

HVSD Level (OVP) 27.0 - 31.5V (24V-3kW)54.0 - 63.0V (48V-3kW) 28.5V 57.50V

Low O/P Alarm (LVA) 21.0 - 26.0V (24V-3kW)42.0 - 52.0V (48V-3kW)

22.0V44.0V

High O/P Alarm (HVA) 26.0 - 31.5V (24V-3kW)52.0 - 63.0V (48V-3kW)

27.8V55.5V

Backlight Timeout 0 - 255 minutes 5 5

Temp Display C/F Celsius/Fahrenheit Celsius Celsius

P/I Limit Alarm Enable/Disable Disable Disable

Equalize Timeout 1 - 255 hours 30 hours 30 hours

Display Calibrate N/A N/A N/A

Local Access Alarm Enable/Disable Enable Enable

Set Security Code 000 - 999 123 123

TABLE 3 - REMOTE COMMUNICATIONS MENU DEFAULTS

Submenu Item ProgrammableRange

Default Setting(24VDC Systems)


Remote Access Enable/Disable Enable Enable

Remote Adjust Enable/Disable Enable Enable

Module ID # 01 - 99 01 01

Baud Rate 1200 - 38400 baud 9600 baud 9600 baud

TABLE 4 - TEST MENU DEFAULTS

Submenu Item ProgrammableRange



Manual Test 21.0 - 32.5 (24V-3kW)40.1 - 62.2 (48V-3kW)

N/AN/A



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4.7 Miscellaneous Defaults/Adjustments/Controls

4.7.1 Adjusting the LCD Viewing Angle

Adjustment of the viewing angle/LCD contrast is made as follows: press and hold the Enter

() button. While depressing the Enter button, press the up () button. ADJUST VIEW AN-

GLE message should show up on the screen. Next, adjust the angle to setting desired us-ing the up () and down () buttons. Press the Enter () button to return to normal mode.



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5.0 REMOTE COMMUNICATIONS

The Pathfinder rectifier system is optimized for remote communications. It can be con-trolled, monitored and tested via the SM0X intelligent supervisory panel or via an ASCII dis-play terminal (through the SM0X RS232).

5.1 Multiple Cabinet Connections (RS-485)

Cabinets can be daisy-chained together via the RS-485 interface. Refer to the customerconnection drawings 030-577-08 for locations and pinout details of the SCI connectors. Theinterconnect cable is RJ11 (standard telephone type RJ12 connectors). Connect the cablefrom one connector labeled RS-485 to another connector labeled RS-485 on the next shelf.

5.2 Connecting the SM0X Panel (RS-485)

Local control and monitoring can be accomplished by connecting the SM0Xs RS-485 inter-face. Connect the straight through cable (RJ12 connectors) to the SM0Xs RS-485 port fromthe Pathfinder cabinets RS-485 port.


Modem

Lan Interface

RS-232

RSM/CSM RS-485SM02

RS-485

RS-485

RS-485

RS-485

RS-485

RS-485

PathfinderPower System

Local Terminal

FIGURE 9 - PATHFINDER COMMUNICATIONS CONNECTIONS


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5.3 Communications using a PC/Terminal (through SM0X RS232)

The Pathfinder is designed to communicate directly with an ANSI terminal to eliminate theneed for additional software. Communication with a PC is also possible with a terminalemulation program such as PROCOMM or TELIX. Display information and setup parame-ters are virtually identical to that available from the built-in front panel keyboard and LCD.

Before connecting the host equipment, ensure the communications access parameters, in-cluding default baud rate of your terminal is set to match the Pathfinder module. The defaultparameters are set to 8 data bits, 1 stop bits, and no parity. The remote terminal mustbe capable of handling continuous communications at the Pathfinders specified baud rate.Set the remote terminal for Half Duplex (Local Echo) communications in order to view com-mands entered.

Once all hardware is setup and a communications link is established, you will need to knowhow to talk to the Pathfinder modules. There has to be DC power present at the output forthe remote communications to function. There are five commands available for navigating

the Pathfinder menus and retrieving status information. The and commands are used

to scroll through menu items and change module settings. The command is used toselect menu items and accept changes. The status command causes a formatted screen ofinformation to be sent from the module containing the module settings and operating status.The Display command causes the PathFinder to respond with the 2-line x 16-characterdisplay information as found on the power module. Commands are not case sensitive andcan be sent as either upper or lower case characters.

Command String format:

[ ...........command initiator character## ........Module ID# 01 - 99; use 00 to broadcast the command to all [email protected] command character] ...........command terminator character

TABLE 5 - NAVIGATION AND STATUS COMMANDS

Command Definition Description Command Example

U Up Scroll up or increase setting [01U]

D Down Scroll down or decreasesetting

[01D]

E Enter Select menu item or acceptmodule setting

[00E]

S Status Send status screen [10S]

? Display Send display information [08?]



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5.4 Remote Terminal Status Screen

The following is a typical screen page layout as the Pathfinder responds to the statuscommand after selecting a module.

Note: PFM (PathFinder, Modular) will appear on the module remote status screen as theunit type i.e. PFM 48V-3kW or 24V-3kW.


----------------------------------------- PathFinder Status V1.00 --------------------------------------------Module ID #: 1 Serial No: 1234 5678 Model: PFM 48V-3kW-------------------------------------------------------------------------------------------------------------------------

O P E R A T I O N A L S T A T U SFloat/Equalize Mode Input Volts = xxxVACCurrent/Power Limit Output Current = xx.xADC Output Voltage = xx.xVDCFan Speed/Set = spd/spd Int Amb Temp = xxxC Manual Test ModeRemote Equalize Remote Shutdown START DELAY = xxx SecHeat Sink Temp = xxxC SOFT START

M O D U L E S T A T U S

Float = xx.xVDC Equalize = xx.xVDCOVP Shutdown = xx.xVDC Low O/P Alarm = xx.xVDC Slope = x.xx%O/P I Limit = xx.xA Equalize Timeout = xxxhrs Start Delay = xxx SecBacklight Tmout = xxx Min P/I Limit Alarm En/Dsabled Local Access Alarm E/DableHigh O/P Alarm = xx.xVDC

M O D U L E A L A R M SREMOTE SHUTDOWN REMOTE EQUALIZE O/P FUSE OPENI/P FUSE OPEN VAC METER FAIL AC MAINS FAIL

AC MAINS HIGH FAN FAIL MODULE FAILOVER TEMPERATURE O/P HV SHUTDOWN LOW O/P VOLTAGECURRENT LIMIT THERMAL SHUTDOWN TEMP SENSE FAILFAN SPEED ERROR POWER LIMIT UPF FAIL/PRI SD

AC MAINS LOW Minor Alarm HIGH O/P VOLTAGE

NO OUTPUT POWER LOCAL SHUTDOWN STARTUP PENDINGOVERTEMP STANDBY

FIGURE 10 - REMOTE TERMINAL SCREEN


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6.0 MAINTENANCE & SERVICE

6.1 Maintenance

Although very little maintenance is required with Argus rectifier systems, routine checks andadjustments are recommended to ensure optimum system performance. Repairs should be

done by qualified service personnel.

The following table outlines several maintenance procedures for this rectifier system.These procedures should be performed once a year.

WARNING: Use extreme care when working inside the rectifiercabinet while the rectifier system is energized. Do not makecontact with live components or parts. HIGH VOLTAGE ANDSHOCK HAZARD.

WARNING: Ensure redundant rectifiers or batteries are used toeliminate the threat of service interruptions while performingmaintenance on the systems alarms and control settings.

Procedure New Setting Date

Clean ventilation openings

Inspect fans (if equipped)

Inspect all system connections(retorque as necessary)

Inspect batteries(consult battery manufacturer'srecommended procedure)

Verify alarm/control settings

Verify float voltage



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6.2 Service

6.2.1 Tools Required

Slotted screwdriver (Blade size 1/2")

#2 Phillips screwdriver (Tip size 3/16")

7/16 socket, rachet, and extension or nutdriver Pair of sidecutters (for MOV replacement only)

6.2.2 Fan Replacement

1. Shut off the unit.

2. Remove the screws that secure the module to the cabinet and remove themodule from the cabinet.

3. Turn the module around to face the back of the unit and remove the fanpower lead wire connector from the cabinet.

4. Remove the four screws which secure the fan to the power module andremove the fan.

5. Install the replacement fan following the preceding steps in reverse order.


FIGURE 11 - FAN REMOVAL


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6.2.3 Fuse Replacement

6.2.3.1 AC Fuse Replacement

1. Shut off the unit and remove thescrews that secure the module to thecabinet and remove the module from thecabinet.

2. Turn the module around to face theback of the unit and remove the sixscrews securing the rear cover.3. Remove the cover and locate the ACfuses (see Figure 13) on the verticalprinted circuit board to the left side of theunit, they are the round cartridge fusesin the clip-style holder.4. Remove the fuse(s) and install thenew fuse(s), then replace the cover andsecure with the screws and replace themodule in the cabinet and secure withretaining screws.


FIGURE 12 - PATHFINDER CABINET

(rear view, cover removed)

FIGURE 13 - DETAIL OF FUSE PLACEMENT

DC FUSE

METAL OXIDE VARISTOR (MOV)

SPADE TERMINATIONS

AC FUSES


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6.2.3.2 DC Fuse Replacement

1. Shut off the unit and remove the screws that secure the module tothe cabinet and remove the module from the cabinet.

2. Turn the module around to face the back of the unit and remove the

six screws securing the rear cover.

3. Remove the cover and locate the DC fuse (see Figures 12 & 13) onthe left of the main DC output socket.

4. Remove the old fuse and replace with

Documents

Pathfinder 48V3kW 3rdEd