PVI 36TL Installation and Operation Manual (Rev H)
DOCR-070588-H
Page
95
of
120
Alarm
1.TempSensorErr
Definition:
Prompt detection of abnormal temperature
Possible causes:
1.Temperature sensor is reading -25C
2.Temperature Sensor socket connecter 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 after-sales service personnel, inverter may
need replacement.
2.CommErr
Definition:
Communication inside inverter fails
Possible causes:
Terminal block connectors 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 working power supply and then
reboot the system;
3.Contact after-sales service personnel
3.ExtFanErr
Definition:
Cooling fan failure, fan operates based on load and
temperature with variable speed control
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 work power supply and then
reboot the system;