Intermatic AT2-5BS4U-BGI Bedienungsanleitung

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PARRANGEDESCRIPTION

SCL1°C;

2°C;

°F

Readout scale.

1°C (only with =SN4): measuring range -50/-9.9 … 19.9/80°CINP

2°C : measuring range -50 … 120°C

°F : measuring range -55 … 240°F

Caution: upon changing the value, it is then necessary to reconfigure the parameters relevant SCLabsolutely

to the absolute and relative temperatures (, , SPLSPHSP, , ALAAHA, etc..)

SPL-50..SPHMinimum limit for SP setting (-20°C)

SPHSPL.120°Maximum limit for SP setting (5°C)

SPSPL... SPHSetpoint (value to be maintained in the room). (-18°C)

C-HREF; HEARefrigerating (REF) or Heating (HEA) control mode

HYS1...10°OFF/ON thermostat differential (3°C)

OFF

ON

SPSP+HY

T[°]

OFF

ON

SPSP-HY

T[°]

CRT0...30minCompressor rest time. The output is switched on again after CRT minutes have elapsed since the previous

switchover. We recommend to set CRT=03 with HYS<2.0°. (3)

CT10...30min

Thermostat output run when probe T1 is faulty. With

CT1

=0 the output will always remain OFF.

(3)

CT20...30min

Thermostat output stop when probe T1 is faulty. With

CT2

=0 and

CT1

>0 the output will always be ON.

Example:

CT1

=4,

CT2

= 6: In case of probe T1 failure, the compressor will cycle 4 minutes ON and 6 minutes

OFF.

(6)

CSD0..30minCompressor stop delay after the door has been opened (active only if DS=YES). (1)

DFR0... 24(1/24h)Defrost frequency expressed in cycles/24 hours. (3)

DLI-50...120°Defrost end temperature. (6°C)

DTO1...120minMaximum defrost duration. (20)

DTYOFF;

ELE;

GAS

Defrost type

OFF: off cycle defrost (Compressor and Heater OFF).

ELE: electric defrost* (Compressor OFF and Heater ON).

GAS: hot gas defrost* (Compressor and Heater ON).

* The defrost output is active if only OAU=DEF.

DRN0...30minPause after defrost (evaporator drain down time). (3)

DDY0...60minDisplay during defrost. If DDYDDY=0 during defrost the temperature continues to be displayed. If > 0, during

defrost the display shows DEF, when defrost is over REC is displayed during DDY minutes. (10)

FIDNO/YESFans active during defrost. (NO)

FDD-50...120°Evaporator fan re-start temperature after defrost. (-2°C)

FTC(NO) NO/YESOptimised fan control enabling. With FTC = NO the fans remain on all the time

ON

OFF

FT3FT2FT2FT3FT1

CMP OFFCMP ONCMP ON

FT10...180secFan stop delay after compressor stop. See Fig. 2. (30)

FT20...30minTimed fan stop. With FT2=0 the fans remain on all the time. (3)

FT30...30minTimed fan run. With FT3=0, and FT2 > 0, the fans remain off all the time. (1)

ATMNON;

ABS;

REL

Alarm threshold management.

NON: all temperature alarms are inhibited (the following parameter will be ADO).

ABS: the values programmed in and ALAAHA represent the real alarm thresholds.

REL: the values programmed in and are alarm differentials referred to and ALRAHRSPSP+HY.

OFF

ON

SPSP+HYS+AHRSP-ALR

T[°]

OFF

ON

SP-HYS-

ALR

SP+AHR

T[°]

SP

ALA-50... 120°Low temperature alarm threshold. (-50°C)

AHA-50... 120°High temperature alarm threshold. (120°C)

ALR-12... 0°Low temperature alarm differential. With =0 the low temperature alarm is excluded. ALR(0°C)

AHR0... 12°High temperature alarm differential. With AHR=0 the high temperature alarm is excluded. (0°C)

ATD0... 120minDelay before alarm temperature warning. (30)

ADO0... 30minDelay before door open alarm warning. (5)

ACC0...52

weeks

Condenser periodic cleaning. When the compressor operation time, expressed in weeks, matches the ACC

value programmed, “CL” flashes in the display. With ACC=0 the condenser cleaning warning is disabled. (0)

IISMNON;

MAN;

Switchover mode to second parameter set

NON: inhibition to use the second parameter group (the following parameter will be SB).

MAN: button switches the two parameter groups over.

IISL-50...IISHMinimum limit for IISP setting. (-5°C)

IISHIISL...120°CMaximum limit for IISP setting. (5°C)

IISPIISL... IISHSetpoint in mode 2. (0.0°C)

IIHY1...10°OFF/ON differential in mode 2. (3°C)

IIFTNO/YESOptimised fan control enabling in mode 2. (NO)

IIDF0...99hoursDefrost timer set to start a defrost in mode 2. (0)

SBNO/YES

Stand-by button enabling. (YES)

DSNO/YESDoor switch input enabling (closed when door is closed). (NO)

LSMNON;

MAN;

DOR

Light control mode

NON : light output not controlled.

MAN : light ouput controlled through button (if OAU=LGT).

DOR : light ouput switched on when door is opened (if OAU=LGT).

OAUNON;

0-1;

DEF;

LGT;

AL0;

AL1

AUX output operation.

NON : output disabled (always off).

0-1 : the relay contacts follow the on/standby state of controller.

DEF : output programmed for defrost control.

LGT : output enabled for light control.

AL0 : contacts open when an alarm condition occurs.

AL1 : contacts make when an alarm condition occurs.

INPSN4; ST1

Temperature sensor selection. With

INP

=

SN4,

the probes must be the

Intermatic

models SN4..; with

INP

=

ST1, the probes must be the

Intermatic

models ST1...

OS1-12.5..12.5°CProbe T1 offset. (0.0°C)

T2NO/YESProbe T2 enabling (evaporator). (YES)

OS2-12.5..12.5°CProbe T2 offset. (0.0°C)

TLD1...30 minDelay for minimum temperature (TLO) and maximum temperature (THI) logging. (5)

SIM0...100Display slowdown.(1)

ADR1...255AT2-5 address for PC communication. (1)

WIRING DIAGRAMS

16(5)A

TTL

T1

ComT2

7(2)A7(2)A

AUX

34512

7891110

Door

Switch

AT2-5BS4E-AG

L1

L2 / Neutral

230Vac

INSTALLATION

■Insert the controller through a hole measuring 71 mm x 29 mm.

■Make sure that electrical connections comply with the paragraph “wiring diagrams”. To reduce the effects of electromagnetic disturbance,

keep the sensor and signal cables well separate from the power wires.

■Fix the controller to the panel by means of the suitable clips, by pressingly gently; if fi tted, check that the rubber gasket adheres to the

panel perfectly, in order to prevent debris and moisture infi ltration to the back of the instrument.

■Place the probe T1 inside the room in a point that truly represents the temperature of the stored product.

■Place the probe T2 on the evaporator where there is the maximum formation of frost.

OPERATION

DISPLAY

During normal operation, the display shows either the temperature measured or one of the following indications:

DEFDefrost in progressHIRoom high temperature alarm

RECLORecovery after defrostRoom low temperature alarm

OFFController in stand-byE1Probe T1 failure

CLE2Condenser clean warningProbe T2 failure

DODoor open alarm

INFO MENU

The information available in this menu is:

T1TLOInstant probe 1 temperatureMinimum probe 1 temperature recorded

T2CNDInstant probe 2 temperatureCompressor working weeks

THIMaximum probe 1 temperature recordedLOCKeypad state lock

Access to menu and information displayed.

■Press and immediately release button .

■With button or select the data to be displayed.

■Press button to display value.

■To exit from the menu, press button or wait for 10 seconds.

Reset of THI, TLO, CND recordings

■With button or select the data to be reset.

■Display the value with button .

■While keeping button pressed, use button .

SETPOINT (display and modifi cation of desired temperature value)

■Press button for at least half second, to display the setpoint value.

■By keeping button pressed, use button or to set the desired value (adjustment is within the minimum and the maximum SPL

SPH limit).

■When button is released, the new value is stored.

STAND-BY

Button , when pressed for 3 seconds, allows the controller to be put on a standby or output control to be resumed (with SB=YES only).

KEYPAD LOCK

The keypad lock avoids undesired, potentially dangerous operations, which might be attempted when the controllers is operating in a public

place. In the INFO menu, set parameter =YES to inhibit all functions of the buttons. To resume normal operation of keypad, adjust setting LOC

so that LOC=NO.

DEFROST

Timed defrost.Defrosting starts automatically when necessary time has elapsed to obtain the defrosting frequency set with DFR. For

example, with =4 defrosting occurs once every 6 hours. The internal timer is set to zero when power is applied to the controller and at DFR

each subsequent defrost start. When the controller is put on a standby, the accumulated time count is “frozen” (is not incremented).

Manual defrost. Defrosting may also be induced manually by keeping the button pressed for 2 seconds.

Defrost type.Once defrost has started, Compressor and Defrost outputs are controlled according to the parameters DTY and OAU. The AUX

output is associated to defrost function with OAU=DEF exclusively.

Defrost termination.Defrost lasts as long as time DTObut, if the evaporator probe has been enabled (T2=YES) and temperature DLIis

achieved before this time elapses, defrost will be terminated in advance. Caution: if =HEA all defrost functions are inhibited; if DFR=0 C-H

the timed defrost function is excluded; during defrost, the high temperature alarm is inhibited.

CONFIGURATION PARAMETERS

■The setup menu is accessed by pressing button + for 5 seconds.

■With button or select the parameter to be modified.

■Press button to display the value.

■By keeping button pressed, use button or to set the desired value.

■When button is released, the newly programmed value is stored and the following parameter is displayed.

■To exit from the setup, press button or wait for 30 seconds.

Thank you for having chosen an Intermatic electronic product. Before installing the instrument, please read these instructions carefully to

ensure maximum performance and safety.

AT2-5 INSTRUCTIONS FOR USE

TECHNICAL DATA

Power supply

AT2-5…E 230Vac±10%, 50/60Hz, 3W

AT2-5…U 120Vac±10%, 50/60Hz, 3W

AT2-5…D 12Vac/dc±10%, 3W

Relay outputs

AT2-5.Q… Compressor 12(5)A 240vac

AT2-5.S… Compressor 16(5)A 240vac

Evaporator fans 7(2)A 240vac

Auxiliary loads 7(2)A 240vac

AT2-5.Q… maximum total current 12A

AT2-5.S… maximum total current 16A

Inputs

NTC 10K�@25°C, part No. SN4...Intermatic

PTC 1000�@25°C, part No. ST1…Intermatic

Measuring Range

-50…120°C, -55…240°F

-50 / -9.9 … 19.9 / 80°C (NTC10K only)

Measuring accuracy

<0.5°C within the measurement range

Operating conditions

-10 … +50°C; 15%...80% r.H.

CE – UL (Approvals and Reference Norms)

EN60730-1; EN60730-2-9;

EN55022 (Class B);

EN50082-1

UL 60730-1A

Front protection

IP55

158--01982

Thermostat output

Fan output

Auxiliary output

Activation of 2nd parameter set

Alarm

Info / Setpoint button

Manual defrost / Decrease button

Increase / manual activation button

Exit / Stand-by button

Fig.1 — Front panel

■Disconnect power at the circuit breaker(s) or disconnect switch(es) before installing or servicing.

■More than one circuit breaker or disconnect switch may be required to de-energize the equipment before servicing.

■Installation and/or wiring must be in accordance with National and Local Electrical Code requirements.

■The device shall be installed in compliance with the enclosure, mounting, spacing and segregation requirements of the ultimate enclosure.

WARNING

Risk of Fire or Electric Shock

Temperature alarm with relative thresholds,

refrigerating control (ATM=REL, C-H=REF).

Refrigerating control (C-H=REF )

Fig. 2 Optimised fan control (FTC=YES)

Temperature alarm with relative thresholds,

heating control (=HEA). ATM=REL, C-H

Heating control (C-H=HEA)

DESCRIPTIONINDICATIONS

7777 Winn Road

Spring Grove, IL 60081

Intermatic Customer Service:

815-675-7000

www.intermatic.com

INSTRUCTIONS FOR USE

AT2-5

INSTRUCTIONS FOR USE

AT2-5

EN

MODE D’EMPLOI

FR

0L0025R00-03

Produktspezifikationen