Manual Operation (AT150A)

8/2/2019 Manual Operation (AT150A)

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Table of Contents

CHAPTER I WORKING PRINCIPLE .................................................................................................................... 1

CHAPTER II OPERATION METHOD................................................................................................................... 1

2.1BASIC OPERATION:...................................................................................................................................... 1

2.2AUTOMATIC CONTROL PARAMETERSETUP:................................................................................................ 2

2.2.1CONVENTIONALAUTOMATIC CONTROL EMPIRIC PARAMETERS .............................................................. 3

2.3BASIC WORKING PARAMETERSETUP ......................................................................................................... 4

2.4CONVENTIONAL SET OPERATION: ............................................................................................................... 5

2.5INSTRUMENT CALIBRATION ........................................................................................................................ 7

2.6DEFINITIONS OF INSTRUMENT KEY AND INDICATOR................................................................................... 8

2.7DATA INPUT OPERATION ............................................................................................................................. 9

CHAPTERIII TECHNICAL PERFORMANCE ..................................................................................................... 9

3.1TECHNICAL SPECIFICATION ......................................................................................................................... 9

3.2 TECHNICAL PARAMETER........................................................................................................................ 10

CHAPTER IV DEFINITION OF ELECTRIC CONVERSION INTERFACES ................................................ 10

4.1DEFINITION OF TRANSDUCERINTERFACE ................................................................................................. 10

4.2DEFINITION OF INSTRUMENT INPUT/OUTPUT INTERFACE...........................................................................11

4.3DEFINITION OF CABLE SOCKET INTERFACE OF TRANSITION LINE (14P RECTANGULAR SOCKET)..............11

4.4DEFINITION OF BAG-CLIPPING INSPECTION SWITCH INTERFACE (5PAVIATION SOCKET)...........................11

CHAPTER V PANEL DIAGRAM AND SCHEMATIC DIAGRAM OF ELECTRIC CONTROL .................. 12

5.1 AT-150AINSTRUMENT FRONT PANEL DIAGRAM (DIAGRAM 1).............................................................. 12

5.2 AT-150AINSTRUMENT REARPANEL DIAGRAM (DIAGRAM 2) ............................................................... 12

5.3AUTOMATIC CONTROL SEQUENCE DIAGRAM ........................................................................................... 13

5.4 CONTROL CABINET FRONT PANEL DIAGRAM (DIAGRAM 3)................................................................... 14

5.5CONTROL CABINET REARPANEL DIAGRAM (DIAGRAM 4) ....................................................................... 14

5.6 CIRCUIT DIAGRAM (DIAGRAM 5) ........................................................................................................... 15

5.7 AIRCIRCUIT DIAGRAM (DIAGRAM 6) .................................................................................................... 15

5.8 CHARGING CYLINDERFUNCTIONAL DIAGRAM (DIAGRAM 7)................................................................ 16

CHAPTER VI ROUTINE APPLICATION AND MAINTENANCE AIDS ......................................................... 176.1SELF-TEST FUNCTION................................................................................................................................ 17

6.2ALARMING CAUSES AND SOLUTIONS........................................................................................................ 17


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Instruction manual of DCS Electrical Quantity-fixed Balance

Chapter I Working Principle

DCS Electrical Quantity-fixed Balance is a high-tech product which integrates mechanical and electrical

technologies and suitable to the auto quantity-fixed working procedure on the packing production line. The

controlling process of the balance is that: during work, under the control of the instrument, the

material-discharging door is closed first and the balance is automatically reset excluding the unit case. In

case the material is added by switching on feeding unit, when it enters into measuring hopper, the force

sensor will transform its weight into corresponding electrical signal and send it to the instrument for data

processing, the corresponding material weight will be displayed on the panel window, and all sections

controlling signals are outputted in turns according to the set parameters to let the feeding unit

continuously add the material into the hopper with fast, minimum and slow three different speeds to

complete the accurate and quantity-fixed material adding. After the material is completely added, the

material-adding unit closes, and the material-discharging door beneath the measuring hopper opens, thematerial, relaying on its self-weight, pours into the bag through bag-catching tank. After the material is

discharged, the material-discharging door closes and the bag-catching unit automatically opens to free the

bag, thus one working cycle is finished and the controlling instrument automatically comes to the next

working cycle. The approach switch beside the bag-catching tank is used to control the close of the

bag-catching brace. Only when the bag-catching unit is under catching status, the instrument can give

bag-pouring controlling signal.

Chapter II Operation Method

2.1 Basic Operation:

2.1.1 Connect the air source and adjust the throttle valve so that the supply air pressure is within the range

of 0.3-0.5Mpa; switch on the power supply, the bag-clipping crank handle opens and the mechanism

enters in the manual operation status.

2.1.2 Sleeve the bag-clipping barrel with packing bag and trigger the position switch beside the barrel for

one time, the packing bag is clamped.

2.1.3 Shift the [Manual/Automatic] switch to the automatic position, the weigher enters in the automatic

metering and packing state.

2.1.4 In case the position switch is triggered without the packing bag thus the bag-clipping mechanism is

in clamping status, please pressing down the [BAG-LOOSING] key before the fed materials is up to

the set quantity so that the bag-clipping mechanism is loosened to avoid the automatic discharging

when the materials are up to the set quantity.

2.1.5 The controller will enter in the next metering and packing cycle after the material discharging is

completed and the bag is removed automatically.

2.1.6 Shift the [Manual/Automatic] switch to the manual position if the parameters need to be set again in

the packing procedure or no packing is conducted for a period of time.

2.1.7 The manual discharging operation can be conducted by pressing down the bag switch firstthen

pressing down the [DISCHARGING] key in the manual state.


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2.2 Automatic Control Parameter Setup:

Press the PRESETkey in pause status, the secondary display shows the work-team number

while the major one displays the presetting target value. Press the number keys or key of to select the work-team. If the ENTis pressed, the instrument will return to the pausestatus. Press the keys of 1~9again, the secondary display shows the parameter number

of the presetting value while the main one displays the corresponding presetting parameter of theshown number. Press ENTto access to the presetting value setup..

No.(secondary

display)

Parameter(secondary

display)

Initial

value(main

display)

Description Operation method

Pn.1 FINAL 0 Target value

Pn.2 SP1 000.00

Fast charging value.

In case the weighing value is largerthan the difference between the targetvalue and the fast-charging value

during the automatic control, the fast

charging will be closed.

Pn.3 SP2 001.20

Medium charging value.

During the automatic control, in caseweighing value > target value

medium value, the medium chargingwill be closed.

Pn.4 CPS 000.05

Slow charging value.During the automatic control, if

weighing value > target value - fallvalue, the small charging will be

closed.

Pn.5 NEAR.Z 000.20

Value near zero

When discharging, if weighing value target value +

over-quantity value, it shall be deemedover quantity.

Pn.8 UNDER 0.00

Under-quantity value.

When the over-/under-deviationalarming mode is valid and

if weighing valuetarget value -under-quantity value, it shall bedeemed under quantity.

Set the presettingparameter

1. Select the presetting

parameter

Press keys of1~8

in the pause status, the

secondary display showsthe number of the

presetting parameter

while the main displayshows the presetting

parameter contentcorresponding to the

number. Press ENT

to access to the setup forpresetting value

2. Set the presettingparameterSet the control setup

quantity andover-/under-quantityvalues in the main

display throughnumber keys and keys

of, . Please refer tothe Data Input Operation

for set up method. Then

confirm them bypressing ENT, the

instrument accomplishes

the set up for thepresetting parameter.Retreat from set up

status of presetting valueAfter the presetting

parameter setup is


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Pn.9 DISCH 1

Discharging times1~9

the bag will be loosened when the

times reach these numbers

I

completed, press

ESCto access to the

weighing state.

(n refers to the current work-team number)

2.2.1 Conventional Automatic Control Empiric Parameters

Model

No.

DCS-50

Packaging weightKg 10 25 40 50

1.1Target value 10 25 40 50

1.2Fast feed value 0.00 0.00 20.00 20.00

1.3Medium feed value 2.00 2.00 2.00 2.00

1.4Drop value 0.10 0.10 0.10 0.10

1.5Near zero value 0.30 0.30 0.30 0.30

2.1Overweight value 0.05 0.05 0.05 0.05

2.2Underweight value 0.05 0.05 0.05 0.05


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2.3 Basic Working Parameter Setup

Press SETUPin the manual status, the secondary display shows PASSWORD, which requires you

to input the password. Input the password through the number keys and press ENT, the main display

shows 0.0and the secondary one displays SETUP. Select the working parameter numbers through

number keys and enter ENTto access to the working parameter setup state.

No. Parameter(main

display)

Initialvalue Range Description

Operation

method

1 Basic weighing parameter

1.1 STRANG 2d 1~9d Stablizing range (unit: d)

1.2 ST.TIME 0.4 0.1~1.5 Stabilizing time (unit: s)

1.3 Z.TRACK on on/oFF

Zero track function. ON is valid while

OFF invalid

1.4 Z.T.RANG 1.0 0.5~2.5d Zero track range

1.5 Z.T.TIME 1 1/2 Zero track time (unit: s)

1.6 Z.RANG 10 00~80Reset range. Percentage of the full

measurement range.

1.7 FILTE1 4 1~9

Analog filtering parameter, FILTE 1 is

with fastest response speed and poorestfiltering effect while FILTE 9 withslowest response speed but best filtering

effect.

1.8 FILTE2 4 1~9

Digital filtering parameter, FILTE 1 iswith fastest response speed and poorest

filtering effect while FILTE 9 withslowest response speed but best filtering

effect.

2 Programable controller

2.1 T10.8

0.0~4.0

Judgement-forbidden time of mediumcharging. The medium charging still

remains valid within the time of T1 afterthe large charging is completed.

2.2T2

0.80.0~4.0

Judgement-forbidden time of smallcharging. The small charging still

remains valid within the time of T2 after

the medium time is over.

2.3 T30.7

0.0~4.0

Alarm modes of over- and

under-deviation are in valid(check-on)status, stabilization will be

obtained after the delay time of T3 oncethe charging is over.

2.4 T41.0

0.0~4.0

Discharging delay time. In case the

weighing value is less than the valuenear zero when discharging, the door

will be closed after the delay time of T4.

Set the workingmode in the

main display orcontrol the

parameter

through and keys,then press

ESC for

confirmation,return to the state

of workingparameter setupselection.

After the

workingparameter setupis completed,

press ESC

to access to the

weighing state.


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2.5 T5 0.5 0.0~4.0Charging delay time. The next chargingwill be started after the delay time of T5

when the discharging is over.

2.6 T6 0.5 0.0~4.0

Discharging delay time. Discharging is

permitted after the delay time of T6when the bag is clipped.

2.7 T7 1.0 0.0~4.0

Bag-loosening delay time. Bag is

loosened after the delay time of T7 whenthe discharging is over.

3Correction times of automatic resetting and automatic fall

3.1 TIMES 10 00~50 Correction times of automatic resettingand automatic fall

3.2 RANGE10d

00~20d

Correction range of automatic fall (unit:d), in case the defference between actualweight and the target value is beyond the

range, the data in this time need norecord.

3.3 COEFF 1 0~4 Correction coefficiency of automatic fall

4 Function selection

4.1 PWO ONON

ON/OFFAutomatic resetting after the mechanismis powered. ON is valid while OFFinvalid.

4.2 S.DISP 1 1~3

Contents of power-on secondary display

1. Accumulative value; 2 Accumulativenumber; 3 Parameter team and

presetting target value

4.3 THE NO. 00 00~99 Scale Address (for communication).

4.4 N.PASS 888888 New password

2.4 Conventional Set Operation:2.4.1 Password Management:

Password is needed to input when accessing to AT-150A instruments calibration and parameter set-up,

the riginal password set in factory is 888888; users can set a new password, which is set in No. 4.4

parameter item, please refer to the working parameter set-up for the specific setting method.

2.4.2 Input/output Test:

Press down the TESTkey in pause status to access to the ports manual test status. Keys of1~0

correspond to OUT1 ~ OUT10, which is valid when being pressed down while invalid when loosened.

The main display shows the output status of OUT Nwhile the minor one displays the input status of

00000000, which represents IN1 ~ IN10 from left to right; 0 indicates invalid while 1 valid. Press

ESCto retreat from the manual test status.


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2.4.3 Manual Resetting:

Press the instruments key of ZEROin the pause status, the weight value is reset as zero provided the

materials in hopper is within the resetting range and the stabilization indicator is lighting, otherwise,

ALARM and alarm will occur.

2.4.4 Work-team Selection:

Press the PRESETkey in pause status, the secondary display shows the work-team number while the

major one displays the presetting target value. Press the number keys or key of or to selectthe work-team. If the ENTis pressed, the instrument upgrades the parameters and returns to the pause

status. Otherwise, pressESC.

2.4.5Inquiry and setup of lot numbers:

In the pause mode, press F1 key, the main display shows 4-bit batch numbers (which are automatically

resetted upon being re-electrified). If you need to set the lot number, just press the , ,

key to set the lot value And pressENT key when finished the setup, otherwise, pressESCkey to

return to the status.

2.4.6 Inquiry of accumulated value:

Press S.DISP/ key in manual status for one time, the accumulated weight will be displayed,

the accumulated bags will be shown by another pressing while the third pressing for the

target value.

2.4.7 Clear Accumulative Value:

In pause status, press PRESETwhen the accumulative weight is shown on the secondary display, the

secondary display will show PRESET n, (n is the current work-team number), when pressing

ZERO, the secondary display will show C TOTAL ?, press ENT, the accumulative weight and

number will be cleaned up; if pressing ESC, the instrument will return to the pause status without

cleaning..

2.4.8 Backup of All Working Parameters and Presetting Values (calibration parameters excluded)(operated

by the safety operation staff)

PressSETUP in pause status, the secondary display will show PASSWORD, asking for passwordinputting, input the number of 321123 through the number keys, the current working parameters and

presetting values will be reserved.

2.4.9. Recovery of All Work Parameters and Presetting Values (calibration parameters excluded)(operated

by users)

Press SETUPin pause status, the secondary display will show PASSWORD, asking for passwordinputting, input 030303, the current working parameters and presetting values are recovered and

reserved.


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2.5 Instrument Calibration

Press the CALkey in pause status, the secondary display shows PASSWORD, which requires you

to input the password. After the password is inputted through the number keys, press the ENTkey, you

will enter in the first calibration step after the secondary display shows CALIB.

Step

Maindisplay

(Parameterselection)

Empiric

value(example)

Secondary

displayDescription Operation method

1

0

0.00.00

0.0000.0000

0.00 CAL-1 PTRadix point

selection

2

1

25

102050

1 CAL-2 1dMin. division

scalling

Conduct selection with the keys of

and and enter in thenext step by pressing ENT. In

case no parameter needs to be

altered, please press ESC to

access to the next step.

3 0100000060.00

CAL-3 CA

Max.measurement

range

(10000d)

Input the data through the keys of

and enterin the next step by pressing

ENT . In case the Max.

measurement range needs no

alteration, please press ESC.

4 0000.00 0000.00 CAL-4 ZoZero-positio

n calibration

Clear the materials in the weigher

hopper and press ENT to enter

in Step 5 after the STAB" lamp is

lighting.* OVER shown on the main

display indicates the transducersoutput signal is too large;

* UNDER shown on the maindisplay indicates the transducers

output signal is too low.

5 . . CAL-5 Gain

calibration

Place the standard weight close tothe Max. measurement range(usually 80% larger than the Max.

measurement range) on the

weigher, press ENTonce theSTAB lamp is lighting after themain display is stabilized, you will

access to the Step 6. In case no gain

calibration is needed, press ESC

key and access to Step 7.

6 . . CAL-6 SP

Input the value of the standard

weight and press ENT for

confirmation, in case there is noerror, the gain calibration is

completed and access to Step 7;otherwise return to Step 5

automatically.


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7 CLIB ENDCalibration

completion

Press ENTkey to enter in Step 1

for repeating; press ESCand the

system enters in the weighing state.

2.6 Definitions of Instrument Key and Indicator

Main display: Six bits, it is used to display the information of weighing data, instrument prompts,etc.

Secondary display: Nine bits composed of English letters and numbers, which is used to display the

accumulative weight, accumulative times, target value, working parameters and prompt messages.

Unit indication: kg

Status indicator lamp:

STAB (stable): This lamp lights when the weight of materials in hopper is stabilized within the

stabilization range.

ZERO (Zero position): This lamp lights when the weight of materials in hopper is within the range

of 01/4d.

UNDER (lack difference): This lamp lights when the set quantity of materials in hopper is in under

deviation.

OVER (over load): When this lamp lights, it shows the fixed quantity is in over deviation.

NEAR.Z (near zero): This lamp lights when the materials in hopper are less than the values in zero

area.

ALARM (alarming): The lumination of this lamp indicates alarming

GRIP (bag-clipping): The lighting of this lamp shows the bag-clipping signal output is effective.

SP1 (fast charging): The lighting of this lamp indicates the large charging signal output is effective.

SP1 (medium charging): The lighting of this lamp indicates the medium charging signal output isvalid.

SP1 (slow charging): The lighting of this lamp indicates the small charging signal output is

effective.

DISCH (Discharging): When this lamp lights, it shows the discharging signal output is valid

Keyboard:

CAL/ Key: It is used to calibrate the instrument, select parameters and input data

SETUP Key: It is used to set the instruments working parameters

ZERO/

Key: It used to reset the weighing data, select parameters and input dataTEST/ Key: It is used to inspect the instruments switching value, select parameters and input data

S.DISP/ Key: Shift the contents of secondary display, select parameters and input data

PRESET Key: It is used to select work-team of presetting values

ESC Key: It is used to retreat from the instruments current working state and clear away the alarm

ENT Key: It is used to confirm the instruments current function or end the data input operation

through keyboard

1/FINAL ~ 0/F1 Keys: Number keys, using to set the presetting values


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2.7 Data Input Operation

Data input operation is required in the procedures of calibration, working parameter set-up and presetting

value input, which can be accomplished directly either by pressing the number keys or through the

following method:

When the controller main displays flicker bit flashes, the data input operation can be accomplished

through the following keys:

Key: The flicker bit number is added by 1

Key: The flicker bit number is substracted by 1

Key: The flicker bit moves one bit to the right, which will shift to the highest bit when at the

lowest bit.

ENT" key: Confirm the inputted data and end the input operation

ESC" key: Overlook the inputted data and end the input operation

ChapterIII Technical Performance

3.1 Technical Specification

3.1.1 GeneralPower supply: AC220V 50Hz10%

Power wave filter: Attatched inside

Working temperature: 0~40

Max. humidity: 90%R.H, no moisture condensation is permitted

Power waste: approx. 20W

3.1.2 Analog Part

Transducer power supply: DC12V 280mA; with capacity for four transducers of 350in parallel

connection

Input resistance: >10M

Zero adjustment range: 0.2~20mV

Input sensitivity: 0.3V/d

Input range: 0.2~20mV

Conversion mode: -

Conversion speed: 200 times/s

Nonlinearity: 0.01%F.S

Zero drift: 0.1V/

Gain drift: 5ppM/

Inside resolution: 1/1,000,000

Max. display accuracy: 1/20000F.S


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3.1.3 Digital Part

Weight display: 13-mm hexadecabit high-luminant fluorescent character-display tube serves as the

main display

Status display: 7-mm nine-bit high-luminant fluorescent character-display tube serves as the

secondary display

Weight unit: Kg

Negative-number display: -

Overload display: OFL

Scalling position: 5 positions available

Keyboard: 18-key repeatable keyboard

3.2 technical parameterType

Techical ParameterDCS-1 DCS-5 DCS-15 DCS-25 DCS-50 DCS-100

Weighing range (kg) 0.2-1 1-5 5-15 10-25 15-50 50-100

Division value (g) 1 2 5 10 10 20Packing error 0 2 0 1

Packing capacity (bags/h) >400 >360 >360 >360 >360 >240

Working environment and

power supplying0~40C; relative humidity 90%; AC220V10% 50Hz

Electricity and air

consumptions

1m3/h compressed air of 0.3-0.5Mpa

It is recommended to select the air compressor of

more than 0.1m3/min

Chapter IV Definition of Electric Conversion Interfaces

4.1 Definition of Transducer Interface

No. 1 2 3 4 5 6 7

6-wireconnection

Ex+ Ex- SN+ SN- SIG+ SIG- SH

4-wire

connectionEx+ Ex- Ex+ Ex- SIG+ SIG - SH

Ex+ Positive pole of eletricity supply; Ex- Negative pole; SN+: Positive induction current; SN-:

Negative induction current; SIG+: Positive signal; SIG-: Negative signal.

70W


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4.2 Definition of Instrument Input/output Interface

Input Output

Pin Function Pin Function

1 GND 1 OUT1 Automatic

2 GND 2 OUT2 Fast charging

3 IN1 Empty 3 OUT3Medium

charging

4 IN2 Automatic 4 OUT4Slow

charging

5 IN3 Manual 5 OUT5Approaching

to set quantity

6 IN4 Discharging 6 OUT6 Discharging

7 IN5Bag

clipping7 OUT7 Bag clipping

8 IN6 Bagloosening

8 OUT8 Alarming

9 IN7Alarm

release9 OUT9 Manual

10 IN8 GND 10 OUT10

11 +24V

4.3 Definition of Cable Socket Interface of Transition Line (14P rectangular socket)

Pin Function Pin Function

1 Q2 output (medium) 8 +24V2 Q3 output (slow) 9 +24V

3 Q1 output (fast) 10 +24V

4 Q4 output (discharging) 11 +24V

5 Q5 output (clipping) 12 +24V

4.4 Definition of Bag-clipping Inspection Switch Interface (5P aviation socket)

Pin Function

1 Empty2

Normally open point ofmanual switch

3 Empty

4 GND

5 Empty


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Chapter V Panel Diagram and Schematic Diagram of Electric Control

5.1 AT-150A Instrument Front Panel Diagram (Diagram 1)

5.2 AT-150A Instrument Rear Panel Diagram (Diagram 2)

Description:

1AC 220 V power input terminal L G N, L refers to live wire, G ground wire and N null wire

2Transducer connection terminal

3Serial port (RS-232/485) output terminal

4Switching value input terminal

5Switching value output value


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5.3 Automatic Control Sequence Diagram

This instrument can control the full procedure of charging, discharging and bag loosening at fast, medium

and slow speeds automatically in the automatic status. The automatic control sequence is as follows:


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5.4 Control Cabinet Front Panel Diagram (Diagram 3)

Quantity lamp lightsThe electronic weigher

completes weighing as per target value;

Manual/automatic lamp lightsThe electronic

weigher is in the automatic operation status;

Clipping lamp lightsThe bag-clipping mechanism

is in the clipping state;

Discharging" lamp lightsThe electronic weigher

measuring barrel is in the discharging state;

Alarming lamp lights Weighing value is beyond

quantity or other errors

5.5 Control Cabinet Rear Panel Diagram (Diagram 4)

Description:

1. Power switch

2. Power supply

3. Output

4. Position switch

5. Transducer

TEST

>ZERO

Documents

Manual Operation (AT150A)