Danfoss ERC 21 Series, User Manual, Page: 22 / 36

Service
Table 14: Service
Code Parameter description Min. Max. Unit
u-- Service
u00 Controller Status
S0=Cooling ON/Heating ON
S2=wait for compressor ON time to elapse
S3=wait for compressor OFF time to elapse
S4=drip OFF delay after defrost
S10=cooling stopped by MainSwitch OFF
S11=cooling stopped by thermostat/heating OFF
S14=defrosting state
S15=fan delay state after defrost
S17=door open (DI input)
S20=emergency cooling
S25=manual control of outputs
S30=Pull-down
S32=delay of outputs at power up
u01 Temperature measured by Sair sensor
u02 Reference set point used for the control
u09 Temperature measured byevaporator sensor
u10 Status of connected Digital input configured to DI1
Open
Close
u13 Shows status of night mode
ON or OFF
u37 Status of connected Digital input configured to DI2
Open
Close
u29 Temperature measured by condenser Sensor
u58 Status of compressor relay
ON/OFF
u59 Status of Fan relay
ON/OFF
u60 Status of Defrost relay
ON/OFF
u63 Status of Light relay
ON/OFF
o23 Relay 1 counter
The number of cycles for the DO1 relay can be read in this menu. The read value is multiplied by 100 to obtain the number of
cycles. On reaching 999x100 cycles the counts stops and is reset to 0.
0 999
o24 Relay 2 counter
The number of cycles for the DO2 relay can be read in this menu. The read value is multiplied by 100 to obtain the number of
cycles. On reaching 999x100 cycles the counts stops and is reset to 0.
0 999
o25 Relay 3 counter
The number of cycles for the DO3 relay can be read in this menu. The read value is multiplied by 100 to obtain the number of
cycles. On reaching 999x100 cycles the counts stops and is reset to 0.
0 999
o26 Relay 4 counter
The number of cycles for the DO4 relay can be read in this menu. The read value is multiplied by 100 to obtain the number of
cycles. On reaching 999x100 cycles the counts stops and is reset to 0."
0 999
u80 Firmware version readout
u82 Controller code number
Parameters: ERC 211
Configuration
Table 15: Configuration
Function Code Min. Max. Unit AP0 AP1 AP2 AP3 AP4 AP5
Configuration cFg
Main switch -1=Service, 0=OFF, 1=ON) r12 -1 1 1 1 1 1 1 1
Predefined applications o61
(2)
AP0 AP5 AP0 AP1 AP2 AP3 AP4 AP5
Cooling/Heating (rE=Cooling, Ht= Heating) o07
(2)
rE Ht rE rE
(1)
rE
(1)
rE
(1)
Ht
(1)
rE
Sensor type selection (n5=NTC 5K, n10=NTC10K, ptc=PTC,
pt1=PT1000)
o06
(2)
n5 ptc n10 n10 n10 n10 n10 n10
Electronic refrigeration control, type ERC 21X
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