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Chapter 8 Inspection and maintenance
Inspection and maintenance of the inverter requires professional and qualified personnel, and pay
attention to the following matters：
Maintenance personnel must follow the specified methods of maintenance and maintenance.
The power of the inverter must be turned off for 5 minutes before maintenance.
Do not directly touch the components on the PCB, otherwise it will be easily damaged by static
electricity.
After maintenance is complete, you must confirm that all screws are tightened.
8-1 Maintenance
Due to the influence of the environment (such as temperature, humidity, smoke, etc.) of the inverter
and the aging of components inside the inverter, various faults may occur in the inverter. Therefore, the
inverter must be inspected daily and regularly maintained during storage and use. Daily inspection and
maintenance refer to the following table：
inspection cycle
Check issues
anytime
Operating
√
environment
cooling
system
Frequency
√
converter
Motor
√
Input
and
output
√
parameters
Chapter 8 Inspection and maintenance
Check content
regular
1,Temperature,
humidity
2.
Dust,
moisture
3. Gas
1.Installation
√
environment
2. Inverter body
fan
1.Vibration,
temperature rise
2. Noise
3. Internal dust,
stolen goods
4.
Wires,
terminals
1.Vibration,
temperature rise
2. Noise
1. Input voltage
2.
Output
current
Criteria and maintenance
1. Temperature <50 ° C, humidity < 90%,
2. No frost, no odor, no flammable, explosive
gas
1. The installation environment is well
ventilated and the air duct is non-blocking
2. The main body fan works normally without
abnormal noise
1.
Smooth
vibration,
temperature
2. No abnormal noise, no odor
3. Completely remove with dry compressed air
4. The fastening screws are not loose
1. Smooth operation and normal temperature
2. No abnormalities, uneven noise
1. The input voltage is within the specified
range
2. The output current is below the rated value
117
normal
air
outlet
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