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Air cooled inverter water chiller
OPERATION
MANUAL
EWAD TZ B 160-700
Air cooled inverter water chiller
D-EOMAC00909-16EN
Operation Manual
79
CxCmp1 OffVfdOverCurr
String in the alarm log:
CxCmp1 OffVfdOverCurr
String in the alarm snapshot
CxCmp1 OffVfdOverCurr
level.
Clean condenser coils to allow a lower
condensing pressure.
6.1.7.19 VFD Communication Failure
This alarm indicates a communication problem with the inverter.
Symptom
Cause
Solution
Circuit status is Off.
The compressor does not load
anymore, circuit is immediately
stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 OffVfdCommFail
String in the alarm log:
CxCmp1 OffVfdCommFail
String in the alarm snapshot
CxCmp1 OffVfdCommFail
RS485 network is not properly cabled.
Check the continuity of the RS485
network with the unit off. There should
be continuity from the main controller
to the last inverter as indicated on the
wiring diagram.
Modbus communication is not running
properly.
Check inverter addresses and
addresses of all the additional devices
in the RS485 network (for example
the energy meter). All the addresses
must be different.
Modbus interface card can be faulty
Check with your service organization
to evaluate this possibility and
eventually replace the board.
6.1.7.20 Compressor VFD Fault
This alarm indicates an abnormal condition that forced the inverter to stop.
Symptom
Cause
Solution
Circuit status is Off.
The compressor does not load
anymore, circuit is immediately
stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 OffVfdFault
String in the alarm log:
CxCmp1 OffVfdFault
String in the alarm snapshot
CxCmp1 OffVfdFault
Inverter is operating in an unsafe
condition and for this reason the
inverter must be stopped.
Check the alarm snapshot to identify
the alarm code from the inverter.
Contact your service organization to
get the problem solved.
6.1.7.21 EXV Driver Error
This alarm indicates an abnormal condition of the EXV Driver.
Symptom
Cause
Solution
Circuit status is Off.
Circuit is immediately stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
Cx OffEXVDrvError
String in the alarm log:
Cx OffEXVDrvError
String in the alarm snapshot
Cx OffEXVDrvError
Hardware Error
Contact your service organization to
get the problem solved.
6.1.7.22 Economizer EXV Driver Error
This alarm indicates an abnormal condition of the Economizer EXV Driver.
Bekijk gratis de handleiding van Daikin EWAD620TZPLB, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EWAD620TZPLB |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11976 MB |







