Maintenance and troubleshooting
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The causes of a fault can be identified based on the faults listed in Table 8-3.
Table 8-3 Web Troubleshooting table
Definition:
Prompt detection of abnormal temperature
Possible causes:
1.Temperature Sensor socket connector has poor
contact;
2.Temperature Sensor is damaged;
Recommended solutions:
1.Observe temperature display;
2.Switch off 3-phase working power supply and
then reboot the system;
3.Contact service personnel
Definition:
Communication inside PCS fails
Possible causes:
Terminal block connecters of internal
communication wires have poor contact
Recommended solutions:
1.Observe for 5 minutes and see whether the
alarm will be eliminated automatically;
2.Switch off 3-phase power supply and then reboot
the system;
3.Contact service personnel
Definition:
Cooling fan failure by visual check
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 and see whether the
alarm will be eliminated automatically;
2.Check for foreign objects on fan blades;
3.Switch off 3-phase power supply and then
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