CPS ES Series - Page 65

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Table 6-2 PCS Troubleshooting
Type
Fault Description and Solution
ALARM
TempSensorErr
Definition: Prompt detection of abnormal temperature.
Possible causes:
 Temperature sensor socket connector has poor contact.
 Temperature sensor is damaged.
Recommended solutions:
1. Observe temperature display.
2. Turn OFF the three-phase working power supply and reboot
the system.
3. If the fault persists, contact CPS Customer Service.
4. x
CommErr
Definition: Communication failure.
Possible causes: Terminal block connectors for the internal
communication wires have poor contact.
Recommended solutions:
1. Observe for five minutes to see whether the alarm will be
eliminated automatically.
2. Turn OFF the three-phase working power supply and reboot
the system.
3. If the fault persists, contact CPS Customer Service.
ExtFanErr
Definition: Cooling fan failure.
Possible causes:
 Fan is blocked.
 Fan service life has expired.
 Fan socket connector has poor contact.
Recommended solutions:
1. Observe for five minutes to see whether the alarm will be
eliminated automatically.
2. Check for foreign objects on fan blades.
3. Turn OFF the three-phase working power supply and reboot
the system.
4. If the fault persists, contact CPS Customer Service.