Product Information NICE3000 User Manual
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Replacement of aging Parts2)
The wearing parts of controller mainly include the cooling fan and filtering electrolytic capacitor.
Their lifetime is closely related to the operating environment and maintenance.
General lifetime as follows:
Component Lifetime
Fan 2 ~ 3 years
Electrolytic capacitor 4 ~ 5 years
Uses could determine when to replace them according to their working time.
Cooling fan1)
Possible damage causes: shaft bearing attrition and blade aging.
Criteria: no crack on fan blade, no abnormal vibration noise at start.
Filtering electrolytic capacitor2)
Possible damage causes: high ambient temperature, big pulsating current due to
frequent load
uctuation, electrolyte aging.
Criteria: no liquid leak, no protrusion of safety valve, electrostatic capacitance measurement,
and insulation resistance measurement.
2.5.3 Controller Storage
The following points must be noticed in controller storage:
It is recommended to store the controller in its original packing box.1)
Long-term storage will cause deterioration of electrolytic capacit
or. Therefore, controllers 2)
not in service for a long time must be powered for at least once within 2 years for testing
purpose, at least for 5 hours ; in the test , the input voltage must be boosted gradually with
voltage regulator to the rated value.
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