NE200/300 Series Drive User Manual
Chapter 8 Routine Repair and Maintenance 197
Vulnerable
parts
Damage
Causes
Solutions
Items for Routine Inspection
Fan
Bearing wear,
blade aging
Change
The fan blade has no cracks and
rotates normally. The screws are
tightened.
Electrolytic
capacitor
Ambient
temperature is
relatively high
and electrolyte
volatilizes.
Change
There are no electrolyte leakage,
color change, crack and shell
inflation. The safety valve is
normal.
Static capacity ≥the initial
value*0.85.
Note:
When the drive is stored for a long period of time, power on test shall be
conducted once within two years and last at least five hours. Use voltage
regulator to gradually increase the voltage to the rated value when power
connection is performed.
8.4 Warranty
The drive’s warranty period is 18 months (from date of shipping), during
which the company would offer free repair or replacement if the fault or
damage occurred under normal use.
During the warranty period, the maintenance will be charged a
reasonable cost due to fault caused by the following reasons.
1) The fault is caused by not following the operation manual or
exceeding the operating standards.
2) The fault is caused by repairing or modifying the drive without
permission.
3) The fault is caused by using the drive in a wrong way, such as wiring
mistakes.
4) The fault is caused by fire, salt corrosion, gas corrosion, earthquake,
storms, floods, lightning, abnormal voltage, or other force majeure causes.
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