Danfoss AK-RC 111, AK-RC 113 Installation guide

Installation Guide

Optyma™ control

080R9290

AK-RC 111, AK-RC 113

AN30923034432301-000102

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Compressor protection Kriwan Kriwan Kriwan Kriwan Protezione compressore

Door limit switch Deurschakelaar Tür Porte Puerta Micro porta

Ambient probe Ruimtesensor Raumfühler Température ambiente Temperatura ambiente Sonda ambiente

Defrost probe Ontdooisensor Abtaufühler Sonde de dégivrage Sensor de desescarche Sonda evaporatore

RS485 Modbus RS485 Modbus RS485 Modbus RS485 Modbus RS485 Modbus RS485 Modbus

Supply 230 V AC Voeding 230 V AC Versorgung 230 V AC Alimentation 230 V AC Suministro 230 V AC Alimentazione 230 V AC

Defrost heater Ontdooiing Abtauheizungen Résistances de dégivrage

Evaporator fans Verdamperventilator Verdampferlüfter Ventilateur évaporateur Evaporador ventilador Ventole evaporatore

Compressor Compressor Kompressor Compresseur Compresor Compressore

Light Verlichting Licht Éclairage Iluminación Luce

Alarm / Aux Alarm / Aux Alarm / Aux Alarme / Aux Alarma / Aux Allarme / Aux

Resistencias de

descongelación

Resistenze sbrinamento

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Common dig. inputs

switchboard

switchboard

Common probes

Digital input 1

Digital input 2

Ambient probe

Defrost probe

OPTYMA™ Control, single phase

MODBUS A+

MODBUS B-

Power
Supply

230 V AC

Defrost

Fans Compr.Aux1/All.Aux2

Light

1 2 3 4 5 6 7 8

Common dig. inputs

Comp. protection

Door switch

Common probes

OPTYMA™ Control, three phase (4 HP)

Ambient probe

Defrost probe

MODBUS A+

1 2 3 4 5 6 7 8

12313 14 15

JB01.1

JB01.2

JB01.3

JB01.13

JB01.14

JB01.15

9 10 11 12 13 14 15 16 17 20 21 18 19

Common

enable

/d /d

F

N

Condensing

unit

Electric

switchboard

MODBUS B-

Power
Supply

230 V AC

Defrost

Fans Compr.Aux1/All.Aux2

9 10 11 12 13 14 15 16 17 20 21 18 19

9

JB01.55JB01.66JB01.77JB01.8L8JB01.44JB01.9

enable

Condensing

unit

Electric

Light

L10

JB01.10

L11

JB01.11

Common dig. inputs

Comp. protection

Door switch

1 2 3 4 5 6 7 8

12313 14 15

JB01.1

JB01.2

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OPTYMA™ Control, three phase (7.5 HP)

Common probes

Ambient probe

Defrost probe

MODBUS A+

JB01.3

JB01.13

JB01.14

JB01.15

MODBUS B-

Power
Supply

230 V AC

Defrost

Fans Compr.Aux1/All.Aux2

9 10 11 12 13 14 15 16 17 20 21 18 19

9

JB01.55JB01.66JB01.77JB01.88JB01.44JB01.9

enable

Condensing

unit

Electric

Light

L10

L11

JB01.10

JB01.11

© Danfoss | DCS (vt) | 2020.05

Function Press

View set point

ENGLISH

Change set point

Change menu “User level”

Return

Change menu “Installer level”

Return

+

+

+

+

+

/

(3 seconds)

(3 seconds)

+

(3 seconds)

(3 seconds)

List of level 1 variables (user level)

Variables Meaning Value Default

r0 Temperature difference compared to main SETPOINT 0.2 – 10 °C 2 °C

d0 Defrost interval (hours)

If d0 = 0 cyclical defrosts Off

d2 End-of-defrost setpoint.

Defrost is not executed if the temperature read by the defrost sensor is greater than
d2. (If the sensor is faulty defrosting is timed)

d3 Max defrost duration (minutes) 1 – 240 min 25 min

d7 Drip duration (minutes)

At the end of defrost the compressor and fans remain at standstill for time d7, the
defrost LED on the front panel flashes.

F5 Fan pause after defrost (minutes)

Allows fans to be kept at standstill for a time F5 after dripping. This time begins at the
end of dripping. If no dripping has been set the fan pause starts directly at the end of
defrost.

A1 Minimum temperature alarm

Allows user to define a minimum temperature for the room being refrigerated. Below
value A1 an alarm trips: the alarm LED flashes, displayed temperature flashes and the
buzzer sounds to indicate the problem.

A2 Maximum temperature alarm

Allows user to define a maximum temperature for the room being refrigerated. Above
value A2 an alarm trips: the alarm LED flashes, displayed temperature flashes and the
buzzer sounds to indicate the problem.

tEu Evaporator sensor temperature display (displays nothing if dE =1) Evaporator temperature read only

0 – 24 hours 4 hours

-35 – 45 °C 15 °C

0 – 10 min 0 min

0 – 10 min 0 min

-45 – (A2-1) °C -45 °C

(A1+1) – 99 °C 99 °C

List of level 2 variables (installer level)

Variables Meaning Value Default

F3 Fan status with compressor off 0 = Fans run continuously

F4 Fan pause during defrost 0 = Fans run during defrost

F6 Evaporator fans activation for air recirculation.

The fans activate for a time defined by F7 if they have not started working for the F6
time. If activation time coincides with the defrosting time, end of defrosting is awaited.

F7 Evaporator fans duration for air recirculation.

Fans working time for F6

dE Sensor presence

If the evaporator sensor is disabled defrosts are carried out cyclically with period d0:
defrosting ends when an external device trips and closes the remote defrost contact or
when time d3 expires.

d1 Defrost type, cycle inversion (hot gas) or with heater elements 0 = heating element

dPo Defrost at Power On 0 = disabled

dSE Smart defrost 0 = disabled

dSt Smart defrost Setpoint (if dSE=1)

The counting of the time between the defrost is incremented only if the compressor is
ON and the evaporator temperature is less than dSt.

1 = Fans only run when compressor is working
2 = Fans disabled

1 = Fans do not run during defrost
0 – 240 min

0 = (function not activated)

0 – 240 sec 10 sec

0 = evaporator sensor present
1 = no evaporator sensor

1 = hot gas
2 = heater with temperature control

1 = defrost at power-on (if possible)

1 = enabled

-30 – 30 °C 1 °C

0 min

1

1

0

0

0

0

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Variables Meaning Value Default

dFd Display viewing during Defrost 0 = current temperature

Ad Modbus Network address 0 – 247 0
Bdr Modbus baudrate 0 = 300 baud

Prt Modbus parity check 0 = none

Ald Minimum and maximum temperature signalling and alarm display delay 0 – 240 min 120 min
C1 Minimum time between shutdown and subsequent switching on of the compressor 0 – 15 min 0 min
CAL Cold room sensor value correction -10 – 10 °C 0 °C
CE1 Duration of compressor ON time in the case of faulty ambient probe

(emergency mode).
If CE1=0 the emergency mode in the presence of error E0 remains disabled, the
compressor remains off and defrosting is prevented in order to conserve the
remaining cold.

CE2 Duration of compressor OFF time in the case of faulty ambient probe

(emergency mode).

doC Compressor safety time for door switch: when the door is opened the evaporator

fans shut down and the compressor will continue working for time doC, after which it
will shut down.

tdo Compressor restart time after door opening. When the door is opened and after tdo

time, it’s setted back the normal functioning giving door open alarm (Ed)
If the door switch is closed and the light stays on for a longer time than tdo light cell
alarm is signaled (E9).
With tdo=0 the parameter is disabled.

Fst FAN shutdown TEMPERATURE

The fans will stop if the temperature value read by the evaporator sensor is higher
than this value.

Fd Fst differential 1 – 10 °C 2 °C
LSE Minimum value attributable to setpoint. -45 – (HSE-1) °C -45 °C
HSE Maximum value attributable to setpoint. (LSE+1) – 99°C 99 °C
AU1 Auxiliary/alarm relay 1 control -6 (NC) = relay de-energised during stand-by.

AU2 Auxiliary/alarm relay 2 control (like AU1 ) 5
StA Temperature setting for auxiliary relay -45 – 99 °C 0 °C
nSC Correction factor for the SET button during night operation (energy saving)

(with In1 or In2 = 8 or -8)
During night operation the control set is: Set Control = Set + nSC
In night mode decimal point flashes.

1 = temperature at the start of the defrost
2 = “DEF”

1 = 600 baud
2 = 1200 baud
3 = 2400 baud
4 = 4800 baud
5 = 9600 baud
6 = 14400 baud
7 = 19200 baud
8 = 38400 baud

1 = even
2 = odd

0 – 240 min
0 = disabled

5 – 240 min 5 min

0 – 5 min 0 min

0 – 240 min
0 = disabled

-45 – 99 °C 99 °C

-5 (NC) = Contact for casing element control
(AUX relay closed with compressor
output inactive).

-4 (NC) = pump down function(NC, see CHAP

5.16).

-3 (NC) = automatic auxiliary relay managed by
StA temp. setting with 2°C differential
(NC).

-2 (NC) = manual auxiliary relay controlled via
AUX key (NC).

-1 (NC) = alarm relay (NC).

0 = relay deactivated.
1 (NO) = alarm relay (NO).
2 (NO) =manual auxiliary relay controlled via

AUX key (NO).

3 (NO) = automatic auxiliary relay managed by

StA temp. setting with 2°C differential
(NO).

4 (NO) = pump down function (NO, see CHAP

5.16).

5 (NO) = free voltage contact for condensing

unit (AUX relay and compressor relay
in parallel).

6 (NO) = relay excited during stand-by.

-20 – 20 °C 0 °C

1

8

1

0 min

0 min

-1

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© Danfoss | DCS (vt) | 2020.05

Variables Meaning Value Default

In1 INP-1 input setting 8 = Night mode digital input (energy saving,

In2 INP-2 input setting ( like In1 ) 1

bEE Buzzer enable 0 = disabled

mOd Thermostat functioning mode 0 = Cold function

P1 Password type of protection

(active when PA is not equal 0)

PA Password

(see P1 for the type of protection)

reL Release software indicates software version read only

N.O.)

7 = Stop defrosting remotely (N.O.) (reads rising

edge of impulse)

6 = Start defrosting remotely (N.O.) (reads rising

edge of impulse)

5 = Stand-by remotely (N.O.) (In order to indicate

Stand-By mode, the display shows ‘In5’

alternating with the current view)
4 = Pump-down pressure switch (N.O.)
3 = Man-in-room alarm (N.O.)
2 = Compressor protection (N.O.)
1 = Door switch (N.O.)
0 = disabled

-1 = Door switch (N.C.)

-2 = Compressor protection (N.C.)

-3 = Man-in-room alarm (N.C.)

-4 = Pump-down pressure switch (N.C.)

-5 = Stand-by remotely (N.C.) (In order to

indicate Stand-By mode, the display shows

‘In5’ alternating with the current view)

-6 = Start defrosting remotely (N.C.) (reads falling

edge of impulse)

-7 = Stop defrosting remotely (N.C.) (reads falling

edge of impulse)

-8 = Night mode digital input (energy saving,

N.C.)

1 = enabled

1 = Hot function

(in this mode defrosting and fan disable Fst

are excluded)
0 = only display set point

1 = display set point, AUX, light access
2 = access in programming not permitted
3 = access in second level programming not

permitted

0...999
0 = not active

2

1

0

3

0

Troubleshooting

Alarm code Possible cause Solution

E0 Cold room temperature sensor not working properly • Check that cold room temperature sensor is working properly

E1 Defrost sensor not working properly (in this case defrosts will last time d3) • Check that defrost sensor is working properly

E2 Eeprom alarm

An EEPROM memory alarm has been detected
(All outputs except the alarm one are deactivated)

E8 Man in cold room alarm • Reset the alarm input inside the cold room
Ec Compressor protection tripped

(e.g. thermal protection or max pressure switch)
(All outputs except the alarm one – where applicable – are deactivated)

Ed Open door Alarm. When the door is opened and after tdo time, it’s setted back the

normal functioning giving door open alarm (Ed)

E9 Cell light alarm.

The light of the cell has been on for a time greater than tdo.

EH Maximum temperature alarm.

The temperature inside the cold room has exceeded the max. temperature alarm
setting (see variables A2, user programming level)

EL Minimum temperature alarm.

The temperature inside the cold room has exceeded the min. temperature alarm
setting (see variables A1, user programming level)

• If the problem persists replace the sensor

• If the problems persists replace the sensor

• Switch unit off and back on

• Check that compressor is working properly

• Check compressor absorption

• If the problem persists contact the technical assistance service

• Check door switch status

• Check door switch connections

• If the problem persists contact the technical assistance service

• Turn off the light

• Check that the compressor is working properly.

• Sensor not reading temperature properly or compressor start/stop

control not working.

• Check that the compressor is working properly.

• Sensor not reading temperature properly or compressor start/stop

control not working.

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Functie Pers

Voor setpoint

NEDERLANDS

Modificeren setpoint

Modificeren menu “Gebruikers
niveau”

Menu verlaten

Modificeren menu
“Installateursniveau”

Menu verlaten

+

+

+

+

+

/

(3 seconden)

(3 seconden)

+

(3 seconden)

(3 seconden)

Lijst met niveau 1 variabelen (gebruikersniveau)

Variabelen Verklaring Waarde Fabr. Inst.

r0 Temperatuur differentie vergeleken met het SETPOINT 0.2 – 10 °C 2 °C

d0 Ontdooi interval (Uur)

indien d0 = 0 cyclische ontdooiing Uit

d2 Ontdooiing setpoint

Ontdooiing wordt niet uitgevoerd als de waarde van de temperatuur hoger is dan "d2".
(Als de sensor defect is wordt de ontdooiing op tijd uitgevoerd)

d3 Maximale ontdooitijd (minuten) 1 – 240 min 25 min

d7 Duur druptijd (minuten)

Na een ontdooibeëindiging blijven de compressor en ventilator gedurende tijd d7
stilstaan, De ontdooi LED op het frontpaneel knippert.

F5 Ventilatorpauze na ontdooiing (minuten)

De ventilator blijft na de druptijd stilstaan gedurende tijd F5. Deze tijd begint na het
einde van de druptijd. Als er geen druptijd is ingesteld start de ventilatorpauze direct
na het einde van de ontdooiing.

A1 Minimum temperatuuralarm

Maakt het mogelijk voor de gebruiker om een minimum ruimtetemperatuur in te
stellen. Beneden waarde A1 schakelt het alarmcontact: het alarm LED knippert,
weergave temperatuur knippert en de zoemer gaat aan om het probleem te melden.

A2 Maximum temperatuuralarm

Maakt het mogelijk voor de gebruiker om een maximum ruimtetemperatuur in te
stellen. Boven waarde A2 schakelt het alarmcontact: het alarm LED knippert, weergave
temperatuur knippert en de zoemer gaat aan om het probleem te melden.

tEu Verdampersensor temperatuurweergave Geeft verdampertemperatuur weer

0 – 24 uur 4 uur

-35 – 45 °C 15°C

0 – 10 min 0 min

0 – 10 min 0 min

-45 – (A2-1) °C -45 °C

(A1+1) – 99 °C 45 °C

Alleen lezen

(geeft niets weer als dE =1)

Lijst met niveau 2 variabelen (installateursniveau)

Variabelen Verklaring Waarde Fabr. Inst.
F3 Ventilatorstatus bij compressor uit 0 = ventilatoren draaien continue

F4 Ventilator pauze tijdens ontdooiing 0 = ventilatoren draaien tijdens ontd.

F6 Verdamperventilatoren activeren voor luchtrecirculatie.

De ventilatoren worden gedurende een door F7 gedefinieerde tijd geactiveerd als ze
niet voor de F6-tijd zijn begonnen te werken. Als de activeringstijd samenvalt met de
ontdooitijd, wacht u het einde van het ontdooien.

F7 Verdamper ventilatieduur voor luchtrecirculatie.

Fans werktijd voor F6

dE Sensor aanwezigheid

Als de verdampersensor Is aangesloten worden ontdooiingen uitgevoerd volgens
cyclusperiode d0: ontdooiing eindigt als een externe sensor aanspreekt en het remote
ontdooicontact schakelt en sluit of als tijd d3 afloopt.

d1 Type ontdooicyclus, omkeersysteem (heet gas) of met ontdooi-elementen 0 = verwarmingselement

dPo Ontdooien bij inschakelen 0 = uitgeschakeld

dSE Slim ontdooien 0 = uitgeschakeld

dSt Smart Defrost Setpoint (indien dSE = 1)

Het tellen van de tijd tussen het ontdooien wordt alleen geïncrementeerd als de
compressor AAN staat en de verdampertemperatuur lager is dan dSt.

1 = ventilatoren alleen in bedrijf als compressor

in bedrijf is
2 = Fans uitgeschakeld

1 = ventilatoren staan stil tijdens ontd.
0 – 240 min

0 = (functie niet geactiveerd)

0 – 240 sec 10 sec

0 = verdampersensor aanwezig
1 = geen verdampersensor

1 = heet gas
2 = kachel met temperatuurregeling

1 = ontdooien bij inschakelen (indien mogelijk)

1 = ingeschakeld

-30 – 30 °C 1 °C

1

1

0 min

0

0

0

0

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© Danfoss | DCS (vt) | 2020.05