Danfoss Optyma control AK-RC 111 Guide D'installation page 4

Variables Meaning
dFd Display viewing during Defrost
Ad Modbus Network address
Bdr Modbus baudrate
Prt Modbus parity check
Ald Minimum and maximum temperature signalling and alarm display delay
C1 Minimum time between shutdown and subsequent switching on of the compressor
CAL Cold room sensor value correction
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
LSE Minimum value attributable to setpoint.
HSE Maximum value attributable to setpoint.
AU1 Auxiliary/alarm relay 1 control
AU2 Auxiliary/alarm relay 2 control
StA Temperature setting for auxiliary relay
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.
4 | AN30923034432301-000102
Value
0 = current temperature
1 = temperature at the start of the defrost
2 = "DEF"
0 – 247
0 = 300 baud
1 = 600 baud
2 = 1200 baud
3 = 2400 baud
4 = 4800 baud
5 = 9600 baud
6 = 14400 baud
7 = 19200 baud
8 = 38400 baud
0 = none
1 = even
2 = odd
0 – 240 min
0 – 15 min
-10 – 10 °C
0 – 240 min
0 = disabled
5 – 240 min
0 – 5 min
0 – 240 min
0 = disabled
-45 – 99 °C
1 – 10 °C
-45 – (HSE-1) °C
(LSE+1) – 99°C
-6 (NC) = relay de-energised during stand-by.
-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.
(like AU1 )
-45 – 99 °C
-20 – 20 °C
© Danfoss | DCS (vt) | 2020.05
Default
1
0
8
1
120 min
0 min
0 °C
0 min
5 min
0 min
0 min
99 °C
2 °C
-45 °C
99 °C
-1
5
0 °C
0 °C