User Manual Release 4

User Manual – Release 4.0 1


Safety page 03

Technical features page 05

Installation page 08

Cooling page 12

Special configuration page 14

Defrost page 15

Thermal protection page 18

Evaporator fan page 19

Condenser fan page 20

High Pressure alarm page 22

Auxiliary functions page 23

Energy Saving page 26

Mains monitoring page 27

Temperature alarms page 28

Battery back-up page 35

Safety Double thermostat page 36

FSC module page 41

Thermostat superparameters page 42

Thermostat Parameters page 45

Monitor superparameters page 48

Monitor Parameters page 49


Keep this book in a place easy to consult.

Do not power the controller before and during any mechanical or electrical intervention. Inside there are

parts under high voltage that may persist after disconnecting the device from the mains.

There are no parts inside the controller that can be used by the user.

ATEX controllers do not provide for any protection of the loads connected, therefore they must be

protected against short circuits, overcurrents or overvoltages and in temperature with the use of

protective devices suitable for the purpose such as fuses, magnetothermal switches, etc.

Failure to comply with safety standards during installation, such as failure to observe the instructions in

this instruction manual, could reduce the safety level of our controllers.

ATEX controllers have a degree of immunity to electromagnetic disturbances in compliance with EEC

directives. To reduce the causes of radiated or conducted type disturbances that could propagate through

the probes, the loads and the power supply of the controller, cabling the wires avoiding their passage

adjacent to high current loads or electromagnetic fields.

If temperature probes are in contact with food substances, verify that these comply with the health

regulations for use in the food sector.

In the event that the controllers are used in equipment in which a malfunction could result in a risk

situation for people or animals, adequate safety systems must necessarily be provided that enter into

operation automatically in the event of malfunctioning.



PRO1 CONTROLLER AND MONITOR

Power Supply 12Vac – 50/60Hz

Dimensions 220x107x45 mm

Logic Dual Microcontroller

Inputs

Nr 3 NTC [-49.9, +99.9]°C

Nr 2 PT100 [-99.9, +49.9]°C

Nr 3 Digital inputs: door switch and high pressure switch

Nr 1 Back-up battery

Relay outputs 30A-30A-16A-5A-5A-5A + 5A SPDT remote alarm relay

Solid state outputs

LED: Led Bar driver[max 20W]

KEY: Electric key driver

CO2: CO2 electric valve driver

Gates Nr 2 CANBUS

Sensors Power Supply

Board Temperature

ORDER CODES

BT92202100 [without DIN bar support]

BT92202000 [with DIN bar support]


one board: set address 1

dual board: set address 3

- CAN RES one board: switch 0

- CAN RES dual board: switch 1

- Switch on the left read 2 or 4 wires PT100 probe

- Switch on the right read 2 or 4 wires PT100 probe

The U1-U6 outputs are configurable

U7 relay output is defined for remote alarm


Each active relay output is indicated by a red LED.

- CLK clock

- VIN board power supply

- TBO board temperature

- PRB probe inputs

- SYN RTC sync

- LOA modality: run/program

- Regular status: the LED lights up every 3 seconds

- Fail status: LED is on

Green led indicate the battery status: regular LED is ON, fail LED is OFF

Green and yellow leds indicate the presence of +12V e +3V power supply

For each CANBUS port, the reception and transmission status is indicated by a pair of LEDs.

For each PT100 probe, power supply and acquisition are indicated by a pair of LEDs.

HOLE DIAMETER 4.64mm


The size of the drilling template for the insertion of the display frame varies according to the size of the

selected panel (see reference manuals). The electrical connection between the panel and the controller

must only be carried out using the 4-pin serial cable provided by ATEX. The display panel must be mounted

in a position that is not subjected to shocks, vibrations, splashes of water and in any case where the

temperature and humidity do not exceed the specification values.

The device must be powered at low voltage at 12Vac; the dimensioning of the power transformer must

be weighed to the type of loads applied to the LED, KEY and CO2 driver outputs. The types of transformers

provided are from 20-40-60VA with 110Vac or 230Vac inputs. When inserting the connectors, do not bend

the printed circuit board which could damage or break components. Switch on the power supply for 230

/ 110Vac loads on N = neutral, L = line and PE = ground respecting the positions. The pins of the connectors

marked N are in parallel with each other. The U1-U2-U3-U4-U5-U6 pins report the input phase when the

respective relays are enabled. Using the RL1 – RL6 parameters, the outputs can be configured according

to the required action described in the table on page 9. The board can be fastened using plastic spacers

or using the fixing hooks of the DIN bar support that can be supplied on request.

CODE

TYPE

APPLICATION

BT92007001 CONN. CPM 2P 7P62

CABLE OUTPUT 90°

LOADS RELAY

BT92007003 CONN. CPM 3P 7P62

CABLE OUTPUT 90°

LOADS LINE

BT92007006 CONN. CPM 2P 5P08

CABLE OUTPUT 90°

12VAC P. SUPPLY - BATTERY

BT92007010 CONN. CPM 2P 3P81

CABLE OUTPUT 90°

LED – KEY –CO2

BT92007011 CONN. CPM 3P 3P81

CABLE OUTPUT 90°

ALARME RELAY

BT92007012 CONN. CPM 4P 3P81

CABLE OUTPUT 90°

PT100 PROBE

BT92007013 CONN. CPM 6P 3P81

CABLE OUTPUT 90°

NTC PROBES – DIGITAL INPUTS


Install the NTC or PT100 thermostat probe in a position not subject to air flows in order to measure

the real temperature of the refrigerated room. The NTC or PT100 probe is enabled by the IS1

superparameter and they are mutually exclusive. The PT100 probe can be 2-wire or 3-wire or 4-

wire type. Set the switch SW1 on the right for 2 or 4-wire probe, on the left for 3-wire probe. To

connect the PT100 probe to the board use a 4-pin male connector 3.81 step. To connect the NTC

probe use a 6-pin male connector 3.81 step. OF1 parameter is dedicated to the calibration of the

thermostat probe, both PT100 and NTC.

Position the defrost-end evaporator probe between the lamellar pack fins in order to obtain a

sufficient temperature detection sensitivity. For refrigerating units with electric defrosting, the

probe must be positioned at the beginning of the circuit and locked in contact with the evaporator

pack tube by bending the aluminum slats around the probe bulb. For the groups with hot gas

defrost the probe must be positioned at the end of the circuit and locked in contact with the

evaporator pack pipe. To connect the NTC probe to the board, use a 6-pin male connector, 3.81

step. OF2 parameter is dedicated to the calibration of the S2 evaporator probe.

Fix the condenser probe with a clamp on the condenser outlet tube. To connect the NTC probe to

the board, use a 6-pin male connector, 3.81 step. OF3 parameter is dedicated to the calibration

of the S3 condenser probe.

Install the PT100 monitor probe in a position not subject to direct air flow. The temperature read

by monitor probe is the one shown on the display and designed to record the alarms temperature.

The PT100 probe can be 2-wire or 3-wire or 4-wire type. To connect the PT100M monitor probe

to the board, use a 4-pin male connector, 3.81 step.

D1 digital input is dedicated to the micro-switch door, observing the configurable contact n.o. or

n.c. To connect the micro-switch cables to the board, use a 2-pin or 6-pin male connector, step

3.81.

D2 digital input is dedicated to the high pressure switch, observing the configurable contact n.o.

or n.c. To connect the pressure switch cables to the board, use a 2-pole or 6-pole male connector,

step 3.81.

D3 digital input is dedicated to the 2nd unit high pressure switch, observing the configurable

contact n.o. or n.c. To connect the pressure switch cables to the board, use a 2-pole or 6-pole

male connector, step 3.81.


The actions of the relay outputs can be configured through the parameters RL1-RL7 with reference to the

values shown in the following table and respecting the maximum current admitted on each output.

ACTIONS ID RESTRICTIONS REFERENCES

COOLING 01 ONLY RELAY U1 CHAPTER 6

DEFROST 02 --- CHAPTER 8

EVAPORATOR FAN 03 --- CHAPTER 9

CONDENSER FAN 04 --- CHAPTER 10

LIGHT 05 --- CHAPTER 11

HEATING 06 --- CHAPTER 11

DEICING RESISTOR 07 --- CHAPTER 11

DRAIN RESISTOR 08 --- CHAPTER 11

2ND STAGE COMPRESSOR 17 ONLY RELAY U2 CHAPTER 7

BACKUP COMPRESSOR 20 ONLY RELAY U2 CHAPTER 7

DEFROST VALVE 21 --- CHAPTER 11

ACTIVE LOAD 24 --- CHAPTER 11

DEFROST VALVE ACCORDING TO COMPRESSOR 25 --- CHAPTER 11

The solid state LED output (max 20 Watt) drives a 12Vdc LED lighting bar with logic required for

turning it on and off. To connect the cables to the board use a 2-pin male connector, 3.81 step,

observing the indicated polarity.

When an electric-key is provided for opening the fridge door, this can be controlled by the solid

state output KEY 12Vdc (max 600mA) with activation from the display panel. To connect the cables

to the board, use a 2-pin male connector, 3.81 step, observing the indicated polarity.

If the cooling back-up is foreseen, the CO2 solid-state output drives the solenoid valve of the

delivery cylinder with the functions described in chapter 10.8. To connect the cables to the board,

use a 2-pin male connector, 3.81 step.


CODE

TYPE

APPLICATION

BT92007001 CONN. CPM 2P 7P62

CABLE OUTPUT 90°

LOADS RELAYS

BT92007003 CONN. CPM 3P 7P62

CABLE OUTPUT 90°

LOADS LINE

BT92007006 CONN. CPM 2P 5P08

CABLE OUTPUT 90°

12VAC P. SUPPLY - BATTERY

BT92007010 CONN. CPM 2P 3P81

CABLE OUTPUT 90°

LED – KEY – CO2

BT92007011 CONN. CPM 3P 3P81

CABLE OUTPUT 90°

REMOTE ALARM

BT92007012 CONN. CPM 4P 3P81

CABLE OUTPUT 90°

PT100 PROBES

BT92007013 CONN. CPM 6P 3P81

CABLE OUTPUT 90°

NTC PROBES – DIGITAL INPUTS


It is the main operating mode for maintaining the coldroom temperature at the set set. The regulation is

of the upper and lower band type with reference to the set and to the HYH and HYL regulation differentials

with reference to the relay configured with action 01. The compressor stop will occur when the value

measured by the probe S1 has reached the value [SPU-HYL ]°C and time DAC expired. The compressor will

restart when the value measured by probe S1 has reached the value [SPU+HYH]°C. The ADL parameter

prevents close starts of the compressor during the thermostatic cycles. The parameter ASS defines the

starting delay time of the compressor at start-up. For HYH = 0 all the controller actions are disabled.

The hourly compressor operating time percentage is calculated from the pull-down and recovery

phases after defrost. The value is stored in volatile memory so that a shutdown of the controller

will reset the value.

The compressor operating hours with hourly resolution are stored. The data is converted and

displayed on the display in working hours.

If the compressor operating percentage calculated within 24 hours exceeds the value defined by

the CPH parameter, the COMPRESSOR USE warning is shown on the display; the event is not

recorded and the adjustment does not change. The cancellation of the message coincides with

the silence of the buzzer.


This is the criterion used in case the failure of the thermostat probe S1 occurs before the

calculation of the average compressor operating times; therefore the times refer to the

parameters CON (compressor switch-on minutes) and COF (compressor pause minutes). In this

temporary operating mode the set temperature can not be controlled with the required accuracy.

This is the criterion used when the failure of the thermostat probe S1 occurs when the evaporator

calibration data are not yet available. The temperature is controlled with the average compressor

switch-on and switch-off times previously calculated. In this condition the maintenance of the

temperature is sufficiently assured if the conditions of loading, of ambient temperature do not

change and frequent door openings do not intervene.

This is the criterion used in case the failure of the thermostat probe S1 occurs in the presence of

the calibration data. Temperature control is transferred to the evaporator probe ensuring that

the setpoint temperature is maintained even in case of door openings or load changes


The output configured with action 17, second stage compressor for static super-freezers, is activated with

the main compressor switched on by at least TPD seconds and if the temperature read by probe S2,

configured as plant probe, is less than or equal to parameter [TMI]°C. The output is disabled when the

main compressor is turned off or the temperature read by the system probe is greater than or equal to

[TMI+HYA]°C. The management of the second stage compressor is active if the thermostat probe S1 is

enabled and configured as a PT100 probe and the probe S2 is enabled and configured as a plant probe.

If the S2 plant probe fault is detected with temperature S1<= [SPU+ 3] °C then the ignition of the

second compressor takes place after TPD seconds from the restart of the first compressor; self

instead S1> [SPU + 3] °C then the 2nd compressor is started after Tdelay=INT[|S1-SPU|/3] minutes.

If the failure of both probes [S1 and S2] should occur during normal operation or with setpoint

temperature reached, then the second stage ignition takes place after TPD seconds from the

restart of the first stage. If the fault of the two probes occurs before the first setpoint temperature

has been reached, the 2nd compressor is forced off.

In this configuration the backup compressor is activated in parallel to the main compressor only when

there is a low refrigeration capacity and a high temperature alarm is generated. The backup compressor

action is not managed when the safety thermostat is active. The function is activated for RL1=1

(compressor 1 action) and RL2=20 (backup compressor 2 action).

EXAMPLE OF 2ND STAGE MANAGEMENT

1st STAGE

2ND STAGE


The controller manages several defrost types according to the DOP parameter with reference to the

relay configured with action 02: defrost by stop, electric defrost, hot gas defrost.

The defrost by stop forces the shutdown of the compressor and activates the evaporator fans

until the end defrost conditions are reached; this configuration usually does not require the use

of the evaporator probe and the term occurs with reference to the DT1 time. From the keyboard

it is possible to interrupt the action in progress when the defrost is started manually.

The electric defrost switches off the compressor by activating the defrosting resistance until the

condition S2> DTE is reached or the DTO time has elapsed. From the keyboard it is possible to

interrupt the action in progress when the defrost is started manually.

The hot gas defrost turns the compressor on and activates the solenoid valve until the condition

S2> DTE is reached or the DTO time has elapsed. From the keyboard it is possible to interrupt the

phase in progress when the defrost is started manually.

Defrosts can be started immediately or at the end of the cycle; in the latter condition, if the compressor

cycle does not end within 15 minutes from the request, defrosting is always started, provided that the

condition S2 <DTE is verified.

INHIBITIONS

A defrost request, with the exception of the defrost protection, is denied if, in at least one of the last three

cycles of thermostat control of the machine, the condition S2> [DTE + 1] ° C has occurred. This in order to

inhibit defrosting almost useless because in such conditions the evaporator can not be packaged with ice.

The criterion is enabled if the conditions are met:

- evaporator probe S2 present and not faulty

- reached the first setpoint from the start

Instead it is disabled in configuration with double defrost and if DOP #512.


Manual defrosts can be activated from the keypad on the appropriate menu.

Defrosts occur every ITD hours of operation. The start of the defrost can take place immediately

or at the end of the compressor cycle according with the DOP superparameter.

Defrosts occur every ITD hours of compressor run. The start of the defrost can take place

immediately or at the end of the compressor cycle.

The time defrosts can be at most four starting at SD1, SD2, SD3 SD4. The start of the defrost can

take place immediately or at the end of the compressor cycle coherently according with the

settings.

The Automatic Defrosting algorithm is a system for detecting the presence of frost on the

evaporator. The use of automatic defrosting requires the presence of two temperature probes:

thermostat probe and one in contact with the evaporator. Switch door installed is recommended.

The parameter SDT represents the sensitivity for the detection of ice on the lamellar

pack and the consequent start of defrosting:

Recommended values:

• SDT = 1.5 for low-temperature refrigerators

• SDT = 1.1 for positive temperature refrigerators

In any case, we recommend testing the equipment to correctly set the ice sensitivity.

For situations of a particularly packaged evaporator, for example due to repeated door

openings, a protective defrost was started

See par. 9.4


The following modes refer to the FOP parameter:

- Forced on: indicated for defrost at compressor stop

- Forced off: indicated for all other types of defrost

- Modulated by FSD: for all types of defrost, excluding defrost by compressor stop, where a

better defrosting efficiency is required.

In this case the evaporator fans will follow the following criteria based on the FOP parameter:

Absolute fan set: Fan OFF: S2> = FSD; Fan ON: S2 <FSD-HFF

Setpoint fan setpoint: Fan OFF: S2> = SPU + FSD; Fan ON: S2 <SPU + FSD-HFF

Acccording to the FOP parameter the condenser fans can be forced on, off or modulated with reference

to the FCE parameter. In this case the condenser fans during defrosting follow the following rule:

Fan OFF: S3<=FCE; Fan ON: S3>FCE+HYF

When the temperature DE1, read by evaporator probe, is reached the controller ends the defrost phase.

From this moment the controller activates or not the dripping phase according to the value of DRP

parameter: DRP = 0 implies the jump of dropping phase DRP> 0 implies its execution for DRP seconds.

Once the dripping phase is completed, the compressor is enabled. The evaporator fans will start when the

S2 probe is lower than the temperature defined by the FAS parameter in order not to introduce hot air

into the coldroom. If the probe S2 is not installed or faulty, the evaporator fans will start after FAD seconds

from the compressor start.

If defrost temperature end DE1 is not reached by S2 probe in DT1 minutes, a warning is given on the

display and the event is recorded in Fault List. If the probe S2 is not installed, the DT1 value represents

the defrost end time.


Thermal protection is enabled if the following conditions are met:

- Function enabled by the OS1 parameter weight 32

- S1 and S2 probes present and not faulty

- S2 probe configured as evaporator probe

- U2 relay configured with defrost action [02]

- Reached the first setpoint from the power-on

If the following conditions are detected during operation:

- [S2-S1]> 25°C with SPU> = 0°C

- [S2-S1]> 50°C with SPU <0°C

The THERMAL PROTECTION WARNING is generated and the controller operation changes

according to the type of defrost. If, with warning of active thermal protection and forced

compressor on (in case of electric defrost), the condition S2 <LBT ° C is reached, or if at any time

the authorization criteria are no longer satisfied, the warning stops and the controller resumes to

regulate as usual.

The outputs associated with the following actions are forced off:

defrost, evaporator fans, light, heating action, door resistance, condenser drain, humidification

and dehumidification.

The outputs associated with the following actions are forced on:

cooling, condenser fans

The outputs associated with the following actions are forced off:

cooling, defrost, evaporator fans, light, warm action, door resistance, condenser drain,

humidification and dehumidification.

The output associated with the condenser fan action is forced on


In this configuration, defined by FOP parameter, with reference to the relay configured with action 03,

the evaporator fans will have consent only with the compressor on. Otherwise they will remain disabled.

In addition to the main consent, the evaporator fans are subject to the following conditions:

Fan ON for S2 <= FAS; Fan OFF for S2> = [FAS + HFF];

FAS parameter represents the fan ignition temperature

During the defrost phase the criteria defined by the FOP parameter are observed.

- Enabled when the FAD has expired

- According to the compressor during thermostat phase

- During defrost phase the criteria defined by the FOP parameter will be observed.

In this configuration, defined by FOP parameter, the evaporator fans will have consent only with reference

to the condition:

Fan ON for S2 <= FAS; Fan OFF for S2> = [FAS + HFF]

The evaporator fans will remain on until the FAD has expired when the controller is switched on

During the defrost phase the criteria defined by the FOP parameter are observed.

In case of door opening the evaporator fans are stopped for DOO seconds after which they resume

operation regardless of the status of the door switch. When the door is again closed, the evaporator fans

start after 10 seconds.

If is reached the condition S2 <LBT a defrost phase is forced. If the recovery phase of temperature, after

the forced defrost, intercepts again the condition S2 <LBT, three thermostatic modes are used: with

reference to the calibration data, with average compressor times, with CON / COF times. In this condition

the controller will record the event in the Failure List. The cancellation occurs by switching off and

restarting the controller. If the temperature recovery phase leads to reaching the set with S2> LBT, then

the regulation will take place normally and the fault condition will not be generated.


The condenser fans are thermostated during the cooling action with the following criteria and with

reference to the relay configured with action 04:

Off: S3 <= FCE; On: S3> [FCE + HYF]°C

Off after 10 seconds from compressor off

In case of S3 probe faulty or disabled, the condenser fans replicate the operation of the

compressor while in defrosting follow the criteria defined by the FOP parameter.

Off: S3 <= FCE; On: S3> [FCE + HYF]°C

During defrosting, the condenser fans can be configured on, off or thermostated according to FOP

parameter.

In case of S3 probe faulty or disabled, the condenser fans replicate the operation of the

compressor while in defrosting follow the criteria defined by the FOP parameter.

If the temperature read by S3 condenser probe exceeds the temperature value defined by the

MCT parameter, all the outputs are turned off except for the condenser fan which is forced on.

The automatic reset occurs as soon as the temperature read by the S3 probe falls below the value

[MCT-DCR]°C. The RMT parameter represents the maximum time allowed for the automatic reset

above which the controller records the HIGH CONDENSATION event and notifies to display. In this

condition the reset must be done switching the thermostat off and on again.


If, within a TBP minute, a PMT number of events described is counted, to the next one, the reset

will be manual: the reset of the regulation will be turned off and on the controller, provided that

the condition [MCT-DCR]°C is verified at power-on. The notification of the fault follows the rules

described in the previous paragraph.

The fault is canceled by turning the thermostat off and then on again.

The presence of impediments on the condenser such as grease and dust accumulated over time

leads to increase the value of the differential condenser temperature. The condenser differential

temperature is calculated each time the compressor is switched on. If the average value of the

thermal jump, purified from the peak values, is greater than or equal to the value of the DCN

parameter, the CONDENSER WARNING is notified to display.

- S3 condenser probe not installed (FCE = 50 ° C) or in fault

- First compressor cycle after switching on, after defrosting and after opening the door;

- Maximum condenser temperature lower than the value (FCE + 15°C).

The warning is clear by pressing the confirm key on the keypad.


The controller detect a high pressure switch transition from open to closed circuit or vice versa in digital

input D2. The transition has the effect to stop the regulation. The same criterion is applied to digital input

D3 for refrigerating units with a second compressor and relative safety pressure switch.

In High pressure condition the compressor is forced off; during this status the controller is in pause

with no warning. When the high pressure switch off, the thermostat is reactivated (automatic

reset) according to antcycling control time.

If, within a TBP time, a PMT number of high pressure switch are counted, the fault is active and

recorded to the next one; as a consequence, the compressor is forced off until the controller is

switched off and on again (manual reset).

During this fault state, the display shows the fault label HIGH PRESSURE. Silencing involves both

switching off the buzzer and deleting the message. A power failure will not erase this status.


Light is controlled through configured relay with action 05 or via soli state LED output.

Light is switched on by a door opening and off when is closed if DLT=0; for DLT> 0 light goes off

automatically after DLT seconds from the opening.

Light can be switched on/off from keypad if DLT=0; for DLT> 0 light goes off automatically after DLT

seconds from click on.

Light is switched off in EcoMode phase according to LGH parameter.

Configured relay with action 6 is enabled when S1< [SPU-HYC]°C and disable when S1 probe reaches the

setpoint. If cooling and heating actions are planned in the installation, the HYL parameter must be set

equal to zero.

The anti-icing control activates the configured relay with action 7 when S1<=SPX°C and is deactivated for

S1> = [SPX + 2]°C.

The condensate drain function activates the configured relay with action 8 for DCD minutes from the

beginning of each defrost. Th function has the purpose of heating the water drainage pipe which

otherwise would remain frozen blocking the water conveyance on the collection tank.

The liquid electric-valve function activates the configured relay with action 21 during thermostat phase

and deactivates during defrost phase.

The active loads function activates the configured relay with action 24 in the switch-on state of the

controller and switches it off in Stand-By mode.

The liquid electric-valve function activates the configured relay with action 25 during compressor on and

deactivates it during the compressor off and defrost phase.


The KEY output drives an electric-key to open the cabinet door (max 600mA) and is activated by panel

display. There are two opening modes: without retention [activation time = K1T sec] and with retention

according to door-switch status. Below are the logic diagrams:

The alarm relay is powered either in mains presence and absence and can be configured by the IOS

superparameter in the monitor section.

- Alarm relay disabled/enabled

- Alarm relay enabled for alarms/for alarms and faults

- Alarm relay non-silenceable/silenceable

- Alarm relay n.o./n.c

The controller drives the CO2 electric valve in mains presence or absence with reference to switch-door

digital input.

- COP weight 1 CO2 Management enabled/disabled

- COP weight 4 CO2 Management in high temperature (*) enabled/disabled

- COP weight 8 CO2 Management in mains presence enabled/disabled

(*) excluding temperature alarm for open door


- COP parameter has odd value

- PT100 monitor probe is enabled and not faulty is

- The digital input detects closed door and has expired 10 seconds after closing

- In case of PT100 monitor probe faulty the activation

- In case of PT100M monitor probe faulty the activation of CO2 is always inhibited

- In open door and for 10s after closing, the CO2 output is disabled.

- During activation of the CO2 output an opening door entails deactivation

Given the activation filters, in mains presence the CO2 output is activated for a duration in tenths

of a second defined by the parameter TCO and iterates each BCO seconds until the condition

S1>=CSP°C is met, otherwise the output is switched off. If the first setpoint has not been reached

but a high temperature alarm is running [not generated by an open door], the CO2 output is

activated with the criterion just described.

A serial command sent from the keypad activates the CO2 output 3 times for a duration of 0.5

seconds at 1 second intervals only if the door is closed (even after a time less than 10 seconds)

and the CO2 solenoid valve output is not active at the instant of the request.

Given the activation filters, the CO2 output is activated for a duration in tenths of a second defined

by the TCO parameter and iterates each BCO seconds until the condition S1>=CSP°C is met,

otherwise the output is switched off. The detection of the switch-door digital input must occur

every 100 milliseconds; as a consequence there could be a maximum delay of 100 milliseconds

between the opening of the door and the deactivation of the CO2 output.

CO2 MANAGEMENT


The ECONOMY function reduces the consumption of the refrigerator unit as soon as the percentage of

compressor use reaches the CPM% value. In this condition the operating setpoint is temporarily

increased by SPI°C; the reset occurs at the pre-established conditions.

After AES consecutive hours during which the hourly compressor percentage is higher than or

equal to the CPM percentage value, the operative setpoint changes from SPU°C to [SPU+SPI]°C.

The EcoMode function reduces the cabinet consumption by increasing of SPI°C the operative setpoint

from one hour of the day defined by NDS parameter for NDD hours. During ECOMODE phase the light

function and elecritc-key mode follow the settings defined by LGH parameter. For CLO> 0 the function is

enabled from 00:00 of the day defined by the parameter itself for a duration of 24 hours. Through the

USER MENU is possible to set the ECOMODE parameters.


The mains voltage is read and the high and low voltage warning is generated to avoid compressor damage.

If the grid voltage remains above the maximum threshold defined by the MHI parameter for more than

MDL minutes, the MAINS VOLTAGE WARNING with the current voltage value is transmitted to the display

without corrective action on the regulation. The event is not stored in the events list.

If the grid voltage remains below the minimum threshold defined by the MLO parameter for more than

MDL minutes, the MAINS VOLTAGE WARNING with the current voltage value is transmitted to the display

without corrective action on the regulation. The event is not stored in the events list.

In case of mains absence, in presence of energy back-up, a warning is given on the display. The event is

not stored in the events list but is notified as a warning.

The prolonged mains absence over MDE minutes generates the fault status and the event is stored in the

events list.


The controller detects the types of temperature alarms described below and records the last 8 events in

FIFO register with reference to the NTC or PT100 S1 thermostat probe and to PT100 S5 monitor probe.

The alarm events are therefore redundant and the reading of the registers by display panel will always

take place with reference to the monitor probe; only in the case of monitor probe failure functionality of

the monitor probe is restored. The same applies to notification of pre-alarm status.

- HIGH TEMPERATURE S1-S5

- HIGH TEMPERATURE FOR MAINS ABSENCE S1-S5

- HIGH TEMPERATURE FOR OPEN DOOR S1-S5

- LOW TEMPERATURE S1-S5

- HIGH TEMPERATURE BOARD surface probe board

Related thermostat unit parameters:

- ALH: High temperature limit (relative or absolute)

- ADS: Alarm delay at power up

- ADF: Alarm delay after defrost

- ALD: Alarm delay

Related monitor unit parameters:

- HAA: Absolute High temperature limit (relative or absolute)

- DAA: Alarm delay

- DSA: Alarm delay expired DAA

In the condition S1> [SPU + ALH] if ALH parameter is defined as a relative limit or S1> ALH if is

defined as an absolute limit the controller counts down the following pre-alarm times and notices

warning to display panel. To disable the pre-alarm warning refer to the parameter OS1.

- ADS: at power up until the set is reached

- ADF: after a defrost until the set is reached

- ALD: during the thermostatation


In the condition S5> [SPU + HAA] if HAA parameter is defined as a relative limit or S5> HAA if is

defined as an absolute limit the controller counts down the following pre-alarm timer:

- DAA At power-on until the HAA limit is reached

- DSA After reaching the HAA limit

If after alarm delay time the temperature exceeding the limits, an alarm is given with buzzer active

and the event is recorded in the ALARM LIST. Until the alarm is closed, the duration increase with

one minute of resolution.

The last 8 alarms are saved with the following data:

- START DATE / HOUR - ALARM TYPE - PEAK TEMPERATURE - DURATION in minutes

The alarm or pre-alarm status is closed when S1 probe detects the condition S1 <= [SPU + ALH] if

ALH parameter is configured as a relative limit or S1 <= ALH if is configured as an absolute limit.

Until the alarm is closed, the duration increase with one minute of resolution.



The alarm or pre-alarm status is closed when S1 probe detects the condition S5 <= [SPU + HAA] if

ALH parameter is configured as a relative limit or S1 <= HAA if is configured as an absolute limit.






- ALL: Low temperature limit (relative or absolute)

- ALD: Alarm delay


- LAA: Low temperature limit (relative or absolute)

- DSA: Alarm delay

In the condition S1<[SPU - ALL] if ALL parameter is defined as a relative limit or S1< ALL if is defined

as an absolute limit, the controller counts down ALD pre-alarm time and notices warning to display

panel when it has expired. To disable the pre-alarm warning refer to OS1 parameter.

In the condition S5<[SPU + LAA] if LAA parameter is defined as a relative limit or S5< LAA if is

defined as an absolute limit, monitor unit counts down DSA pre-alarm time and notices warning

to display panel when it has expired. To disable the pre-alarm warning refer to ALM parameter.

If after alarm delay time the temperature exceeding the limits, an alarm is noticed with buzzer

enabled and the event is stored in EVENTS LIST. Until the alarm is closed, the duration increase

with one minute of resolution.



The alarm or pre-alarm status is closed when S1 probe detects the condition S1>= [SPU-ALL]°C if

ALL parameter is configured as a relative limit or S1>= ALL°C if is configured as an absolute limit.




The alarm or pre-alarm status is closed when S5 probe detects the condition S5>= LAA°C if LAA is

defined as an absolute limit or S5>=[SPU+LAA] if LAA parameter is defined as a relative limit.





- ALH High temperature limit (absolute or relative)

- DXO Alarm detection time after door opening

- ALD Alarm delay in thermostat phase

A high temperature pre-alarm for door open is detected when S1>[SPU+ALH]°C if ALH parameter

is configured as a relative limit or S1>ALH°C if ALH if is configured as an absolute limit and

furthermore, when this is established condition, the door is open or has been closed by no more

than DXO second. In this condition the ALD time is counted.

If after alarm delay time the temperature exceeding the limits, an alarm is noticed with buzzer

enabled and the event is stored in EVENTS LIST. Until the alarm is closed, the duration increase

with one minute of resolution.



The alarm is closed when S1 probe detects the condition S1<=[SPU + ALH]°C if ALH parameter is

configured as a relative limit or S1>= ALH if is configured as an absolute limit. Until the alarm is

closed, the duration increase with one minute of resolution.





- HAA Absolute or relative High temperature limit

- DXA Alarm detection time after door opening

- DSA Alarm delay in thermostat phase

· The pre-alarm and temperature alarm for open door is enabled for DXA> 0

· The value of the DXA parameter is loaded each time the door is closed

The high temperature pre-alarm for open door does not differ from the high temperature pre-alarm

previously described in the display notification level, but only as an internal status, useful for detecting

the corresponding alarm.

A high temperature pre-alarm for door open is detected when S5>HAA°C if HAA is defined as an absolute

limit or S5>[SPU+HAA] if is configured as a relative limit and furthermore, when this is established

condition, the door is open or has been closed by no more than DXA second. In this condition the DSA

time is counted.

If after alarm delay time the temperature exceeding the limits, an alarm is noticed with buzzer enabled

and the event is stored in EVENTS LIST. Until the alarm is closed, the duration increase with one minute

of resolution.



The alarm or pre-alarm status is closed when S5 probe detects the condition S5<= HAA°C if HAA is defined

as an absolute limit or S5<[SPU+HAA] if LAA parameter is defined as a relative limit. Until the alarm is

closed, the duration increase with one minute of resolution.


This kind of alram can be enabled or disabled with reference at OS1 parameter.

If the temperature read by the S1 probe at mains recovery meets the following conditions

S1> [SPU+ALH]°C if ALH parameter is configured as a relative limit or S1>ALH°C if is

configured as an absolute limit, black-out alarm is noticed and stored in EVENTS LIST with

the following records:

- DATE/HOUR [at mains recovery]

- ALARM TYPE [high temperature for mains failure]

- PEAK TEMPERATURE [at mains recovery]

- DURATA in minutes [not expected]

This kind of alram can be enabled or disabled with reference at ALM parameter.

The pre-alarm, alarm and registration warning criterion is identical to that in mains

presence with the difference that the recording label of the alarm changes in high

temperature for mains failure with the following structure:

- DATE/HOUR [at alarm start]


- PEAK TEMPERATURE [maximum value reached]

- DURATA in minutes [from alarm start to alarm end]

In this condition, the mains absence shuts down the board and, therefore, if the

temperature read by S5 PT100M probe at mains recovery satisfies the condition

S5>HAA°C if HAA is defined as an absolute limit or S5 > [SPU+HAA] if HAA is defined as a

relative limit, alarm notification is given with the registration of the following data:

- DATE/HOUR [at mains recovery]



- DURATA in minutes [unexpected]


In this condition the monitor unit can not record the whole duration of the event

therefore the alarm recording will have the following structure:

- DATE/HOUR [at alarm start]



- DURATA in minutes [not expected]

The DTP parameter defines the maximum difference between the S5 monitor and S1 thermostat probes.

Once the first setpoint has been reached, if the condition | S5-S1 |> DTP ° C is checked, then after the

delay time TPS minutes, the unbalancing warning is sent with a warning on the display. The warning is

inhibited in case of failure of at least one of the two probes.


The back-up system uses 8 rechargeable 2700 mA / h nickel-metal hydride batteries with a total voltage

of approximately 11.7V. As an alternative the lead batteries 12V-3A/h or 12V-7A/h can be used.

The circuit detects absent battery status for voltage values Vbatt <VAD.

The circuit detects present battery status for voltage values Vbatt >=VPD.

In mains presence battery is tested every TBT minutes; the measurement duration under a

dummy load is BTD seconds. The test voltage is shown on the display.

The battery charge is triggered under the following conditions:

- At the transition from absent to present battery with read voltage Vbatt> = VPD

- At mains recovery;

- At the transition from stand-by to power on;

- If, after a test, the voltage read is Vbatt <VRS

Charge status continues as long as the voltage does not exceed VRE Volt or the expected time-out

of MRT hours has elapsed; on reaching the charge time-out if Vbatt>=VRT, measure relative to

the last test, the battery will be considered not efficient, otherwise will be considered faulty but

not disconnected.

The battery voltage, in mains absence, is continuously monitored. When Vbatt <VBR the "kill"

signal is sent so that the high-level processes can be completed; after TBK seconds the battery is

disconnected in order to avoid a destructive discharge.


A redundant refrigerating unit consists of a single storage compartment and two independent

refrigeration units connected to two PRO1 control boards that alternate during the control cycles. The

logic alternates the regulation between two controllers based on a single display. The SSM parameter

configures the controller as a single or redundant unit.

The functionality of the double safety thermostat (DT) is administered by the parameter SSM (values

0,1,2)

SSM = 0 DT management disabled

SSM = 1 DT management enabled. The thermostat with SSM = 1 represents the Main Thermostat

SSM = 2 DT management enabled. The thermostat with SSM = 2 represents the secondary thermostat

Therefore, two PRO1 control boards are required connected by a canbus cable and a D2 or D3 or D4

display panel connected to one of the two boards (generally to the address card 01) via a canbus cable.

The following card named master has physical address 01 while the twin card has address 03 settable

through the dipswitch on board

Controller A has installed the monitor probe, the regulation probes, the battery input, the light output,

the electric lock and the outputs related to the loads to be controlled by the cooling group A. The

controller B has enabled the monitor probes and regulation, the battery input and the outputs related to

the loads to be controlled by the cooling group B. The serial commands for turning on / off the light and

the electric lock command are sent to both thermostats. The display configuration parameter [EVO] is

read only from the controller A.

The "active" thermostat is the one to which the adjustment process is allowed (switch the

compressor on and off and all other outputs).

The "passive" thermostat is the one to which the regulation process is forbidden. The passive

thermostat sends the waiting operation signal. All alarm and fault management activities are

regularly functioning even in passive thermostat status.

The system foresees that the two thermostats are always in a complementary state, when one of

the two is active the other is passive and vice versa.


The active thermostat after switching off the compressor sends the activation request signal,

through which it defines the change of status to the twin thermostat in the passive state.

The passive thermostat becomes active when it receives the activation signal coming from the

twin thermostat, which is in active state.

The active thermostat, which is sending the activation signal, becomes passive when it receives

the active thermostat signal from the twin thermostat, which certifies the receipt of the request.

This occurs following non-recoverable events listed in the table so that the twin thermostat takes

over and thus becomes the only functioning system in the group of two. Otherwise the events

considered to be resettable do not make the unit passive.

EVENT RECOVERABLE NOT RESTORABLE TWIN_FAIL

Configuration inconsistent with Canbus address x x

Compressor action not associated with a relay x

High condenser temperature failure x x

High pressure failure x x

High temperature alarm (not for blackout or open x x

Low evaporation failure x x

Mains failure on a single unit x x

Defrost time-out x x

High condenser temperature pre-alarm x

High pressure pre-alarm x

Load failure and relay failure (PRO2) x x

Compressor failure (PRO2) x x

Probe failure S1, S2, S3 x x

Thermal protection warning (PRO1) x

Warning of high compressor use x

Safety thermostat (PRO2) x x

Communication fault between microcontrollers x x

Defrost Time-out x x

HYH parameter set to zero x

Controller unconnected x


When the thermostat is turned on, both from the panel and from the power supply reset, the

thermostats automatically invert their Activity / Liability status.

The two thermostats are normally always in a complementary state. In the situation where the

systems configured with the same value as the SSM parameter, could enter an anomalous

operating condition. If both thermostats are set to SSM=1 when a violation occurs, they will

remain in an active state indefinitely. If both thermostats are set to SSM=2 upon occurrence of a

violation they will remain indefinitely in a passive state (both will never activate the compressor).

The request for manual defrosting sends the serial command only to the ACTIVE thermostat.

The temperature shown on the display is that of the monitor A probe (Master probe) whether the

thermostat A is active or the thermostat B is active: this architecture avoids the display perception of

temperature jumps and defines a unique criterion of thermal reference. If the monitor probe A fails, the

temperature is marked in purple and read by the thermostat probe A with fault notification as in single

temperature units. In the case of UNIT FAILURE At that time the temperature is read forever by the

monitor B probe or thermostat B in case of monitor B probe failure.

The detection of a temperature alarm refers to the Master monitor A probe or the thermostat probe A (in

case of monitor probe failure), whether the thermostat A is active or the thermostat B is active, and is

notified with an active buzzer and central red flashing button (panel D2) or thermometer icon (D3/D4

panels); pressing the central button (D2 panel) or display (D3/D4 panels) leads to reading of the EVENT

LIST A. The detection of a temperature alarm by the thermostat B, whether the thermostat A is active or

whether the thermostat is active thermostat B, it is not notified but in any case registered and readable

by manually accessing the LIST OF EVENTS of thermostat B through MENU. In the condition of thermostat

A always active due to the exclusion of thermostat B (UNIT FAULT B), then the temperature reading and

alarm notification will always refer to monitor probe A or thermostat probe A (in case of monitor probe

failure) ) with address to the EVENT LIST A. In the condition of thermostat B always active due to the

exclusion of the thermostat A (UNIT FAULT) then the temperature reading and the alarm notification will

always refer to the monitor probe B or the thermostat probe B (in case of monitor probe failure) with

address to the EVENT LIST B.


In the case of a high temperature alarm, not for an open door, then the thermometer icon reports

the single unit operating warning while the system switches forever in the thermostat that has

not detected the event.

The low temperature alarm is almost exclusively reached by a continuous operation of the

compressor, for example in the event that the relay contacts remain glued. Before reaching the

low temperature limit, it will have reached the setpoint and therefore will have transferred

control to the twin thermostat waiting to start the compressor as soon as the temperature

reaches the value [SPU + HYH]; in this case the temperature will rise slowly as the passive twin

unit cools down in a static way with the glued relay and evaporator fans off, bringing itself into

the thermodynamic condition of low evaporation. When the point of attack is reached, the

integral and active thermostat goes into cold action and reaches the setpoint; once it has been

reached, it will transfer control to the twin thermostat which, in the condition S2 <LBT, triggers

the low evaporation failure so as to generate thepassivity of the thermostat, yielding the

operation to the twin that will remain permanently active. In any case, the low temperature alarm

is detected and memorized without generating temporary or permanent changes in the operating

status. In other words, if the system took as reference the low temperature alarm only, it could

incur the condition in which the integral thermostat detects the low temperature condition,

definitively but incorrectly transferring the control to the faulty thermostat with degenerative

conservation consequences.

Both zones register the respective faults and it will be possible to manually access both the EVENT LIST A

and the EVENT LIST B. To avoid conflicts of notification the following criterion is used: failures of active

and passive devices that are translated into the single FAULT SYSTEM to be notified are masked as a

notification. The buzzer is activated while pressing the red central button (panel D2) or the display (panels

D3 / D4) directs the EVENT LIST of the device that generated it. Manual access to the EVENT LIST via the

zone selection will always be possible.


Communication absence between microcontrollers imposes the following operating modes:

- FAILURE COMMUNICATION is noticed and stored in EVENTS LIST.

- Thermostatation runs according the specification criteria

- CO2 solenoid valve management continues according to the specification criteria

- Unbalanced probe warning is inhibited.

- Battery management continues according to the specification criteria

- The operating logic redundancy continues according to the specification criteria

- The safety thermostat with the auxiliary micro is inhibited.

- In double safety thermostat the board who has detected the absence of communication between

the microcontrollers is forced off


FSC SPEED FAN 400VA accessory module [order code BT92401000] connected to CANBUS

network controls evaporator fan speed or condenser fans speed automatically or

manually [max 400VA].

The LGH parameter defines the operating modes of the FSC module:

MANUAL - AUTOMATIC CONDENSER FANS - AUTOMATIC EVAPORATOR FANS

Through a special menu [panels D1-D2-D3-D4] fan speed can be set manually in 5 levels:

LEVELS: 1 = 25% ; 2 = 45%; 3 = 65%; 4 = 85%; 5 = 99%.

Depending on the configuration of the condenser or evaporator, the enabling and disabling of the

modulated output follows the criteria for the respective actions.

The module adjusts the speed according to the temperature as described in graph of fig.1, following the

activation and deactivation criterion of the output foreseen for the condenser fan action.

Fig. 1

The module adjusts the speed according to the temperature as described in graph of fig.2, following the

activation and deactivation criterion of the output foreseen for the evaporator fan action.

Fig. 2


EVO DEFAULT ACTIVE WITH WEIGHT

1 Single temperature cabinet Double temperature cabinet

2 Door with no glass Door with glass

4 Electric-key absent Electric-key present

8 Not used Not used

16 Wizard menu (only D2) No wizard menu (only D2)

32 Single thermostat Double thermostat

64 Buzzer enabled Buzzer disabled

128 MicroSD Card disabled MicroSD Card enabled

256 Decimal display temperature Integer display temperature (only D2 panel display)

512 Not used Not used

1024 Celsius Fahrenheit

IS1 DEFAULT ACTIVE WITH WEIGHT

1 S1 ntc thermostat probe input disabled S1 ntc thermostat probe input enabled

2 S2 ntc probe input disabled S2 ntc probe input enabled

4 S3 ntc probe input disabled S3 ntc probe input enabled

8 D1 digital input disabled D1 digital input enabled

16 D1 digital input n.o. D1 digital input n.c.

32 Switch door failure disabled Switch door failure enabled

64 D2 pressure digital input disabled D2 pressure digital input enabled


256 S1 ntc thermostat probe input S1 ntc thermometric probe input

IS2 DEFAULT ACTIVE WITH WEIGHT

1 D3 pressure digital input disabled D3 pressure digital input enabled


4 Relative alarm limit to setpoint Absolute alarm limit

8 Not used Not used



64 S1 ntc probe S1 PT100 probe

128 S2 ntc evaporator probe S2 ntc plant probe

256 PT100 probe input 2/4 wires PT100 probe input 3 wires


OS1 DEFAULT ACTIVE WITH WEIGHT

1 Prealarm notice disabled Prealarm notice enabled

2 Alarm notice disabled Alarm notice enabled

4 Black-out high temp. alarm notice disabled Black-out high temp. alarm notice enabled

8 Ecomode disabled Ecomode enabled

16 Economy disabled Economy enabled

32 Thermal protection disabled Thermal protection enabled



OS2 DEFAULT ACTIVE WITH WEIGHT

1 Evaporator fan off in open door Evaporator stabilization in open door

2 Compressor usage warning disabled Compressor usage warning enabled

4 Defrost after setpoint increase disabled Defrost after setpoint increase enabled

8 Not used Not used





FOP DEFAULT ACTIVE WITH WEIGHT

1 Evaporator fan disabled Evaporator fan enabled

2 Evaporator fan on/off with compressor Evaporator fan indipendent

4 Evaporator fan off during defrost Evaporator fan on during defrost

8 Evaporator fan not modulated in defrost Evaporator fan modulated in defrost

16 Condenser fan off during defrost Condenser fan on during defrost

32 Condenser fan not modulated in defrost Condenser fan modulated in defrost

64 Thermostated fan condenser Fan condenser off in 10 sec after compressor off

128 Absolute evaporator fan setpoint Relative evaporator fan setpoint

DOP DEFAULT ACTIVE WITH WEIGHT

1 Manual defrost disabled Manual defrost enabled

2 Compressor off during defrost Compressor on during defrost

4 Timer defrost disabled Timer defrost enabled

8 Compressor hour defrost disabled Compressor hour defrost enabled

16 RTC defrost disabled RTC defrost enabled

32 Safety defrost disabled Safety defrost enabled

64 Immdiately start defrost Start defrost at setpoint with time-out

128 Automatic defrost disabeld Automatic defrost enabeld

256 Defrost inhibition enabled Defrost inhibition disabled


LGH DEFAULT ACTIVE WITH WEIGHT

1 Switch-door lighting disabled Switch-door lighting enabled

2 Lighting on disabled by display panel Lighting on enabled by display panel

4 Lighting indipendent during EcoMode phase Lighting off during EcoMode phase

8 Electric-key indipendent during EcoMode phase Electric-key off during EcoMode phase

16 Electric-key without hold-on in open door Electric-key with hold-on in open door

32 FSC module disabled FSC module enabled

64 FSC module in automatic mode FSC module in manual mode

128 FSC module drive fan condenser FSC module drive fan evaporator


Nr PAR DESCRIPTION MIN MAX UNIT DEFAULT

1 ADR Controller address 1 4 num 1

2 EVO Display options 0 255 num 0

3 IS1 Inputs setup 1 0 255 num 0

4 IS2 Inputs setup 2 0 255 num 0

5 OS1 Outputs setup 1 0 255 num 0

6 OS2 Outputs setup 2 0 255 num 0

7 FOP Fans setup 0 255 num 0

8 DOP Defrost setup 0 255 num 0

9 ALH High alarm limit -50,0 50,0 °C 6,0

10 ALL Low alarm limit -50,0 50,0 °C -2,0

11 ALD Alarm delay 0 240 min 10

12 ADS Alarm delay at power on 1 240 min 120

13 ADF Alarm delay after defrost 1 240 min 15

14 BUR Buzzer time replay 1 255 min 20

15 BUF Buzzer time-out 1 255 min 2

16 HYH Upper differential cooling action 0,0 9,9 °C 0,0

17 HYL Lower differential cooling action 0,0 9,9 °C 0,0

18 HYC Differential heating action 0,0 9,9 sec 0,0

19 DAC Compressor off delay 1 30 sec 4

20 ADL Anticycling 0 255 sec 60

21 ASS Compressor delay at power-on 0 255 min 60

22 CON Compressor ON in probe failure 0 255 min 6

23 COF Compressor OFF in probe failure 0 255 min 2

24 CPH Max compressor usage in 24 hours 0 99 % 90

25 FAS Evaporator fan setpoint -50,0 50,0 °C 8,0

26 HFF Differential evaporator fan 1,0 20,0 °C 5,0

27 FAD Fan delay in S2 probe failure or uninstalled 0 255 sec 30

28 FSD Fan stop temperature during defrost phase -50,0 10,0 °C -2,0

29 LBT Lower evaporator temperature -55,0 0,0 °C -12,0

30 DOO Door alarm time 1 255 sec 40,0

31 FCE Condenser fan setpoint 0,0 60,0 °C 25,0

32 HYF Differential condenser fan 1,0 20,0 °C 5,0

33 MCT Higher condenser temperature 0,0 70,0 °C 40,0

34 DCN Clogged condenser threshold 0,0 30,0 °C 20,0

35 DCR Condenser differential recovery temperature 0,2 20,0 °C 10,0

36 RMT Recovery time in high temperature condenser 1 30 min 10



37 PMT Work pressure max number 1 255 num 3

38 TPB Work pressure delay 1 255 min 30

39 DTE Defrost temperature end 0,0 50,0 °C 3,0

40 DTO Defrost time-out 1 60 min 10

41 ITD Interval defrost 1 24 ore 8

42 DRP Dripping time 0 240 sec 0

43 DCD Defrost drain resistor time 0 240 min 10

44 SDT Ice sensivity in automatic defrost 0,0 5,0 °C 1,5

45 DPR Time defrost protection with tuning 0 255 min 30

46 DPS Time defrost protection without tuning 0 255 min 60

47 SD1 1st daily defrost time 0 23 ore 0

48 SD2 2nd daily defrost time 0 23 ore 0

49 SD3 3rd daily defrost time 0 23 ore 0

50 SD4 4th daily defrost time 0 23 ore 0

51 CPM Maximum % compressor to start Ecomode 0 99 % 80

52 AES Delay to start auto Ecomode 1 23 ore 4

53 SPI Setpoint increase in Economy & Ecomode 0,0 5,0 °C 0,0

54 NDS Ecomode start hour 0 23 ore 0

55 CLO Public holiday 0 8 num 0

56 NDD Ecomode duration 0 23 ore 0

57 LGH Light mode/FSC mode/Electric-key mode setup 0 255 num 0

58 SPX Door resistor setpoint -10,0 10,0 °C 3,0

59 SPU User setpoint -40,0 40,0 °C 4,0

60 OF1 Probe S1 offset -9,9 9,9 °C 0,0



63 SLL Setpoint limit low -99,0 2,0 °C -90,0

64 SLH Setpoint limit high -80,0 40,0 °C 12,0

65 RL1 U1 relay action 0 1 num 0






71 DLT Light timer; enabled fot DLT=0 0 240 sec 60

72 DXO Alarm temperature delay in open door 0 20 min 2



73 K1T Electric-key time on 0 60 sec 10

74 SSM Double Thermostat 0 2 num 0

75 HYA 2nd unit hysteresis 0,0 50,0 °C 20,0

76 TPD 2nd compressor delay 8 255 sec 30

77 TMI 2nd unit setpoint -50,0 0,0 °C -40,0

78 MLO Minimum mains voltage; 0= disabled 0 270 V 200

79 MHI Maximum mains voltage; 0= disabled escluso 0 270 V 245

80 MDL Voltage warning delay 1 255 min 10


ALM DEFAULT ACTIVE WITH WEIGHT

1 Prealarm notice disabled Prealarm notice enabled

2 Alarm notice disabled Alarm notice enabled

4 Black-out high temp. alarm notice disabled Black-out high temp. alarm notice enabled

8 Not used Not used

16 Relative alarm limit to setpoint Absolute alarm limit




IOS DEFAULT ACTIVE WITH WEIGHT

1 S5 PT100 monitor disabled S5 PT100 monitor enabled

2 Battery disabled Battery enabled

4 Alarm relay disabled Alarm relay enabled

8 Alarm relay enabled for temperature alarms Alarm relay enabled for temp. alarms and failure

16 Not silenceable relay Silenceable relay

32 D1 digital input switch-door disabled D1 digital input switch-door enabled


128 PT100 probe input 2/4 wires PT100 probe input 3 wires

256 Alarm relay n.o. Alarm relay n.c.

COP DEFAULT ACTIVE WITH WEIGHT

1 CO2 management disabled CO2 management enabled

2 CO2 management in high temp. disabled CO2 management in high temp. enabled

4 CO2 management in mains present disabled CO2 management in mains present enabled

8 Not used Not used






N° PAR DESCRIZIONE DEL PARAMETRO MIN MAX U DEFAULT

1 ALM Alarms setup 0 255 num 0

2 IOS I/O setup 0 255 num 0

3 COP CO2 management 0 255 num 0

4 OF5 PT100 monitor probe offset -9,9 9,9 °C 0,0

5 DAA Alarm delay 0 255 min 10

6 DSA Alarm delay after DAA 0 255 min 90

7 LAA Absolute low temperature limit -50,0 65,0 °C 2,0

8 HAA Absolute high temperature limit -50,0 65,0 °C 8,0

9 MDE Mains absence time-out 0 255 min 10

10 DTP Maximum differential temperature probe between S1/S5 0,0 9,9 °C 3,0

11 TPS Displacement delay after reaching setpoint 0 255 min 10

12 DXA High temperature time detection after open door 0 20 min 2

13 SPS Safety setpoint in cooling action -99,9 50,0 °C 1,0

14 SYH Hysteresis in safety cooling action 0,5 5,0 °C 2,0

15 SHE Temperature threshold for U2 relay cut-off 0 400 °C 0

16 CSP Temperature threshold for CO2 electric valve action -80,0 10,0 °C -60,0

17 TCO CO2 electric valve time action 0,1 9,9 sec 5

18 BCO Repetition time CO2 electric valve 1 240 sec 30

19 TBO Maximum temperature board 0,0 90,0 °C 55,0

20 MRT Battery charge time-out 5 24 ore 4

21 FCD First charge time-out 5 24 ore 12

22 BTD Battery test time-out 3 10 sec 10

23 TBT Time between test 1 200 min 5

24 VRS Recharge threshold voltage 1 250 V/10 105

25 VRE End charge threshold voltage 1 250 V/10 115

26 VRT Minimumu threshold voltage after charge 1 250 V/10 110

27 VBR Cut-off battery threshold voltage 1 250 V/10 90

28 BOF Battery voltage offset 0 100 V/10 0




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User Manual Release 4