Danfoss EKC 316A, Reference Manual

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14 Reference manual RS8ED102 © Danfoss 03-2006 EKC 316A
Alarms
Symptom Possible Cause Fault Message Remedy
All Light emitting diodes
flashing S2 sensor cut-out. E15 Check connections at terminals 18-19 and
sensor.
S2 sensor short-circuited E16 Check connections at terminals 18-19 and
sensor.
S3 sensor cut-out E17 Check connections at terminals 18-20 and
sensor.
S3 sensor short-circuited E18 Check connections at terminals 18-20 and
sensor.
Analogue input outside range. E19
Pressure transmitter outside
range. E20 Check pressure transmitter, connections at
14-15 and pressure.
High Temperature alarm A1 Check cooling is effective. Check thermo-
stat relay at terminals 8-9
Low Temperature alarm A2 Check ETS valve is full open and relay at
terminals 8-9
No refrigerant selected A11 Select refrigerant
Supply to stepper motor A43 Check connections from EKC316A to ETS
valve.
Battery alarm A44 Check the battery voltage is the nominal
voltage.
Notes:
1) Only one alarm is displayed at a time in the controller display
and are shown in the order given above i.e. E15 will be dis-
played if S2 is not connected. If S2 is connected successfully
then the next alarm will be E17 if S3 is not connected. All alarms
are displayed in the AKM system.
2) The alarm E19 will only be active if address o10 is set to 1 or
more.
3) The alarm E17 and E18 will be only active if the Therm.Mode ad-
dress r14 is set to 1 or Reg.type address o56 is set to 3.
4) The battery alarm A44 is only active when Batt.alarm address
A34 is set to ON.