EKC
326A
Manual RS8FM602 © Danfoss 02-2016
9
Operating status
The controller’s operating status can be called forth by a brief (1s) activation of the
upper button. If a status code exists it will be shown. (Status codes have lower priority
than alarm codes. This means that status codes cannot be seen if there is an active
alarm code.
The individual status codes have the following meanings:
EKC State
(0 = regulation)
S10 (off): Regulation stopped by the internal start/ stop.
10
S20: Emergency cooling is activated because of defect sensor
20
S42: Heat recovery or heat pump control is active
42
S43: Higher capacity through displacement of the pressure reference
43
Alarms
E1: Fault in controller
Controller fault
E15: Cut-out Sgc sensor
Sgc o.c.
E16: Short circuited Sgc sensor
Sgc S.C.
E20: Fault on the signal from Pgc
Sgc input err
E39: Fault on the signal from Prec
Prec input err
A43: Step motor error. Output or phase
Step motor err
A45: Regulation stopped. Main switch r12 = off
Standby mode
A82: The Pgc gas pressure measured is higher than the maximum limit for n69
PgcMax alarm
A83: The Pgc gas pressure measured is lower than the minimum limit for A65
PgcMin alarm
A84: The receiver pressure measured is lower than "n71" minus "n72"
PrecMin alarm
A94: Pgc gas pressure measured is outside the permitted reference
PgcRef alarm
A95: Prec receiver pressure measured outside the permitted reference
PrecRef alarm