Megmeet MV820 - Chapter 9 Maintenance; Daily Inspection

287
Chapter 9 Maintenance
The ambient temperature, humidity, dust, vibration as well as the aging of components may cause drive faults. Thus, it
is necessary to carry out daily and periodical maintenance.
9.1 Daily inspection
Before inspection and maintenance, check the following matters. Otherwise, electrical shock may occur.
① The drive’s power supply is cut off.
② Ensure the charging LED indicator is off before you open the cover.
③ The voltage between terminals + and – measured by a DC high-voltmeter should be below 36 V.
The drive shall be working in the environments specified in Section 3.2. In addition, there may be some other unexpected
situations during operation, so users need to carry out daily maintenance according to the following table. The effective
ways to prolong the service life of the drive is to maintain a good operating environment, record daily operating data
and discover faults and causes as early as possible.
Table 9-1 Instructions for daily inspection
Inspection item
Inspection instructions
Inspection standard
Inspection contents
Cycle
Inspection means
Operating
environment
1. Temperature and
humidity
Anytime
1. Temperature
meter and
hygrometer
1. -10℃ to +40℃,
derating required at
40℃ to 50℃
2. Dust, water and drop
leak
2. Visual inspection
2. No water drop and
leakage
3. Odor
3. Smell
3. No strange smell
Drive
1. Vibration and heat
generation
Anytime
1. Touch
1. The vibration is
stable and normal;
the temperature of
the enclosure is
moderate; and the
fan is running well.
2. Noise
2. Hear
2. No abnormal
sound