55
Code Description
Type Cause
(Set) Activation
Hysteresis A
1)
C
2)
3)
Er28 Operating hours exceeded
Inverter fan
MAN Operating hours inv
fan>Fn19
Er29 General alarm
MAN General alarm
Er30 Inlet probe error
AUT Operation connection
defect
Er31 Outlet probe error
AUT Operation connection
defect
Er33 RTC communication error
alarm AUT Clock broken
Er34 Alarm RTC register value AUT Clock not regulated
Er35 Configuration error alarm AUT Configuration incorrect
Er37 Alarms log full signal
MAN N° of log events > AL25
Note: 1) If “bypass time” = “not present”, the alarm is immediately active.
2) If “N° responses in sample window” = 0, the alarm is always in manual reset
3) If “N° responses in sample window” = >32 the alarm is always in automatic reset mode
Alarm list with actions and notes
Code Action
Notes
Er01 Blocks all compressors and fans
Er02
Blocks all compressors and fans:
- at maximum power (Fn22) in Cool
- OFF in Heat
AL02 is loaded for digital compressors whenever a power
variation is applied to the system which is not due to the alarm
itself; for the inverter compressor when activated. If suction
probe in error, minimum alarm is always signalled.
Summary of Contents for EWCM 4120
Page 1: ...EWCM 4120 4150 4180 EN e Compact controller for compressor plants 1...
Page 69: ...NAVIGATION MENU DIAGRAMS 69...
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