Inovance NICE900 Series - Maintenance

Chapter 7 Maintenance and Troubleshooting
- 90 -
Chapter 7 Maintenance and Troubleshooting
7.1 Maintenance
7.1.1 Routine Maintenance
The inuence of the ambient temperature, humidity, dust and vibration will cause the aging of
the components inside the controller, which may cause potential faults or reduce the service
life of the controller. Therefore, it is necessary to carry out routine and periodic maintenance.
CAUTION
The lter capacitor still has residual voltage after the power supply is cut off. Thus, do not repair
or maintain the controller immediately. Wait at least 10 minutes and ensure that the bus voltage
measured by multimeter is not higher than 36 V.
Routine maintenance involves checking:
•
Whether abnormal noise exists during motor running
•
Whether the motor vibrates excessively
•
Whether the installation environment of the controller changes
•
Whether the cooling fan works properly
•
Whether the controller overheats
Routine cleaning involves:
•
Keep the controller clean all the time.
•
Remove the dust, especially metal powder on the surface of the controller, to prevent the
dust from entering the controller.
•
Clear the oil stain on the cooling fan of the controller.
7.1.2 Periodic Inspection
Perform periodic inspection on the items that are difcult to check during running. Periodic
inspection involves:
•
Check and clean the air lter periodically.
•
Check whether the screws become loose.
•
Check whether the controller is corroded.
•
Check whether the wiring terminals have arc signs.
•
Carry out the main circuit insulation test.