CPS SCA60KTL-DO/US-480 - Page 126

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Table 7-3 LCD Troubleshooting ALARM
Type Error/State Fault Description / Instruction
Alarm
TempSensorErr
Definition: Prompt detection of abnormal
temperature
Possible causes:
1. Temperature Sensor socket connecter has poor
contact
2. Temperature Sensor is damaged
Recommended solutions:
1. Observe temperature display
2. Switch off exernal AC disconnect, then back on
to reboot the system;
3. Contact post-sales service if not corrected
CommErr
Definition: Communication inside inverter fails
Possible causes:
Terminal block connecters of internal communication
wires have poor contact
Recommended solutions:
1. Observe for 5 minutes to see whether the alarm
will be eliminated automatically
2. Switch off exernal AC disconnect, then back on
to reboot the system
3. Contact post-sales service if not corrected
ExtFanErr
Definition: Cooling fan failure
Possible causes:
1. Fan is blocked
2. Fan service life has expired
3. Fan socket connecter has poor contact
Recommended solutions:
1. Observe for 5 minutes to see whether the alarm
will be eliminated automatically
2. Check for foreign objects on fan blades;
3. Switch off exernal AC disconnect, then back on
to reboot the system
4. Contact post-sales service if not corrected
EepromErr
Definition: Internal alarm
Possible causes:
Internal memory has a problem
Recommended solutions:
1. Observe for 5 minutes to see whether the alarm
will be eliminated automatically
2. Contact post-sales service if not corrected