Danfoss ERC 21 Series, User Manual, Page: 27 / 36

Function Code Min. Max. Unit AP0 AP1 AP2 AP3 AP4 AP5 AP6 AP7
Light Control
on= Always on, dAn = Day/Night, doo=Based on
door action
o38 on doo on on on on on on on on
Predefined applications o61
(2)
AP0 AP7 AP0 AP1 AP2 AP3 AP4 AP5 AP6 AP7
Save settings as factory

NOTE:
The earlier factory settings are overwritten
o67 no YES no no no no no no - no
DO2 config
dEF=Defrost; ALA=alarm; Lig=Light
o71 (2) dEF Lig dEF ALA (1) dEF (1) dEF (1) dEF (1) dEF (1) dEF ALA
Display during defrost
Air=actual air temperature, FrE=freezed tempera-
ture, -d-="-d-" is displayed
o91 Air -d- -d- -d- -d- -d- -d- -d- -d-
(1)
-
(1) This option is a default setting in the controller and cannot be changed.
(2) This parameter can only be set when regulation is stopped, i.e. “r12” is set to 0.
(1) This option is a default setting in the controller and cannot be changed.
(2) This parameter can only be set when regulation is stopped, i.e. “r12” is set to 0.
Polarity
Table 28: Polarity
Function Code Min. Max. Unit AP0 AP1 AP2 AP3 AP4 AP5 AP6 AP7
Polarity P--
DI1 input polarity (nc/no)
no = normally open
nc = normally closed
P73 no nc no no no no no no no no
DI2 input polarity (nc/no)
no = normally open
nc = normally closed
P74 no nc no no no no no no no no
Invert alarm relay (0= normal, 1= invert relay ac-
tion)
P75 0 1 0 0 0 0 0 0 - 0
Key board lock (no / yes)(0=no, 1=yes) P76 no YES no no no no no no - no
Parameters: ERC 214
Configuration
Table 29: Configuration
Function Code Min. Max. Unit AP0 AP1 AP2 AP3 AP4 AP5 AP6 AP7
Configuration cFg
Main switch (-1=Service, 0=OFF, 1=ON) r12 -1 1 1 1 1 1 1 1 1 1
Predefined applications o61
(2)
AP0 AP7 AP0 AP1 AP2 AP3 AP4 AP4 AP6 AP7
Cooling/Heating (rE=Cooling, Ht= Heating) o07 (2) rE Ht rE rE (1) rE (1) rE (1) rE (1) rE (1) rE Ht (1)
Sensor type selection (n5=NTC 5K, n10=NTC10K,
ptc=PTC, pt1=PT1000)
o06 (2) n10 pt1 n10 n10 n10 n10 n10 n10 n10 n10
DO2 config (dEF=Defrost; ALA=alarm; Lig=Light) o71
(2)
dEF Lig dEF ALA
(1)
dEF
(1)
dEF
(1)
dEF
(1)
dEF
(1)
dEF ALA
(1)
DO4 config (Lig=Light, ALA=Alarm) o36
(2)
Lig ALA Lig Lig Lig Lig Lig Lig Lig Lig
(1)
This option is a default setting in the controller and cannot be changed.
(2) This parameter can only be set when regulation is stopped, i.e. “r12” is set to 0.
(1)
This option is a default setting in the controller and cannot be changed.
(2) This parameter can only be set when regulation is stopped, i.e. “r12” is set to 0.
Reference
Table 30: Reference
Function Code Min. Max. Unit AP0 AP1 AP2 AP3 AP4 AP5 AP6 AP7
Reference r--
Setpoint r00 -100.0 200.0 °C 2.0 4.0 2.0 -20.0 2.0 -24.0 2.0 50.0
Differential r01 0.1 20.0 K 2.0 2.0 2.0 2.0 2.0 2.0 2.0 4.0
Maximum set point limitation r02 -100.0 200.0 °C 50.0 6.0 4.0 -18.0 4.0 -20.0 50.0 70.0
Minimum set point limitation r03 -100.0 200.0 °C -35.0 2.0 0.0 -24.0 0.0 -26.0 -35.0 30.0
Display offset r04 -10.0 10.0 K 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Display Unit (°C/ °F) r05 -C -F -C -C -C -C -C -C -C -C
Calibration of Sair r09 -20.0 20.0 K 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
© Danfoss | Climate Solutions | 2023.01 BC194286421698en-000901 | 27
Electronic refrigeration control, type ERC 21X