Delixi CDI-SPD Series, Руководство пользователя

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Chapter II Product Information
Page 9
2.5 Daily Maintenance and Repairing
(1) Daily maintenance
The influence such as environmental temperature, humidity, dust and vibration
may result in aging of the internal components of frequency inverter,which should
cause potential fault of frequency inverter or reduction of its service life. Therefore,
it is necessary to perform dailymaintenance andregular inspection with the
frequency inverter.
Daily inspection item:
A Check if the sound of motor running has any abnormal change.
B Check if there is any vibration in motor running.
C Check if the installation environment of frequency inverter is changed.
D Check if the cooling fan of frequency inverter works normally.
Daily cleaning:
A Keep frequency inverter always clean and tidy.
B Clean surface dust on the frequency inverter effectively in order to prevent
dust from entering the frequency inverter, especially metal dust.
C Clean oil dirt of frequency inverter’s cooling fan effectively.
(2) Regular inspection
Please inspect places that can be hardly inspected regularly.
Regular inspection item:
A Inspect and clean air flue regularly.
B Inspect if the screw is loose.
C Inspect of the frequency inverter is corroded.
D Inspect if there is arc on surface connecting terminal.
(3) Replacement of vulnerable parts
The vulnerable parts of the frequency inverter include cooling fan and filter
electrolytic capacitor, the service life of which closely depend onoperating
environment and maintenance condition.
Users can confirm replacement period according to running time.
A Cooling fan
Possible damage reasons: Bearing abrasion and blade aging.
Judgment standard: Confirm if the fan blade has cracks and abnormal vibration
sound when starting.
B Filter electrolytic capacitor
Possible damage reasons: Input power with low quality, high environment
temperature, frequent load modulation and electrolyte aging.
Judgment standard: Confirm if the liquid leaks and safety valve has protruded;
measurement of electrostatic capacity and insulation resistance.
(4) Storage of frequency inverter
After purchased the device, please pay attention to following points while