Product Information MD280 User Manual
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Component Service Life Possible Damage Cause Judging Criteria
Fan 2 to 3 years
Bearing worn
Blade aging
Check whether there is crack on
the blade.
Check whether there is abnormal
vibration noise upon startup.
Electrolytic
capacitor
4 to 5 years
Input power supply in
poor quality
High ambient
temperature
Frequent load jumping
Electrolytic aging
Check whether there is liquid
leakage.
Check whether the safety valve
has projected.
Measure the static capacitance.
Measure the insulating
resistance.
2.6.4 Storage of the AC Drive
For storage of the AC drive, pay attention to the following two aspects:
1 Pack the A
C drive with the original packing bo[ provided by Inovance.
2 Long-term storage degrades the electrolytic capacitor. Thus, the AC drive must be
energized once every 2 years, each time lasting at least 5 hours. The input voltage
must be increased slowly to the rated value with the regulator.
2.7 Warranty
1 The warranty agreement applies only to the AC drive itself.
2 The w
arranty period of the product is 18 months as of its manufacturing date refer to
the barcode on the product. Maintenance out of warranty will be charged.
3 Within the warranty period, maintenance will be charged for the damages due to the
following causes:
Improper operation without following the instructions
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Using the AC drive for non-recommended functions
4 The
maintenance fee is charged according to Inovance's uniform standard. If there is
an agreement, the agreement prevails.
2.8 Braking Component Selection Guideline
The braking resistor model is dependent on the generation power of the motor in the actual
system and is also related to the system inertia, deceleration time and potential energy load.
Select the braking resistor based on the actual conditions. The larger the system inertia, the
shorter the deceleration time, and the more frequent the braking is. In this case, you need to
select a braking resistor of larger power and smaller resistance.
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