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Chapter 8 Maintenance
The influence of the ambient temperature, humidity, dust and vibration as well as the aging devices in the
drive may cause the drive faults. Thus, it is necessary to carry out daily and periodical maintenance.
8.1 Daily maintenance
Note
Before inspection and maintenance, please confirm the following items first. Otherwise, electric shock may
occur.
1
．The power supply of the drive has been cut off.
2
．Ensure that the charging LED lamp is off .
3
．The voltage between terminals (+DC )and terminals (-DC )measured by DC high-voltmeter should be below
36V.
The drive should be working in the environments stipulated in Section 2.1. In addition, there may be some
unexpected situations during the operation, so users should carry out daily maintenance according to the
instructions in 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 the cause of abnormity as early as
possible.
Table 8-1 Instructions for daily inspection
Inspection
items
Inspection essentials
Judgment standard
Inspection contents Cycle Inspection means
Operating
environment
1. Temperature and
humidity
Anytime
1. Temperature
meter and
hygrometer
1．-10℃~+40℃, derating is required at
40℃~50℃
2. Dust, water and
drop leak
2.Visual detection 2. No signs of drop of water and drop leak
3. Odor 3. Smell 3. No strange smell
Drive
1. Vibration and heat
generation
Anytime
1. Touch
1. The vibration is normal and stable. The
temperature of the enclosure and the
operating of the fan is normal.
2. Noise 2. Hear 2. No abnormal sound
Motor
1. Heat generation
Anytime
1. Touch by hand 1. Generating heat without any exception
2. Noise 2. Hear 2. Low and regular noise
Running
status
1. Output current Anytime 1. Current meter
1. Within the rated range and three-phase
equilibrium
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