Inovance MD380 Series, User Manual

Page: 13 / 304

MD380 User Manual Safety Information and Precautions
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2) Motor insulation test
Perform the insulation test when the motor is used for the first time, or reused
after being stored for a long time, or in a regular check-up, in order to prevent the
poor insulation of motor windings from damaging the AC drive. The motor must be
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8
V
:
Megger
Input terminals
of the motor
Ground
3) Thermal protection of motor
If the rated capacity of the motor selected does not match that of the AC drive,
especially when the AC drive's rated power is greater than that of the motor, adjust the
motor protection parameters on the operation panel of the AC drive or install a thermal
relay for the motor for protection.
4) Running at over mains frequency
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the AC drive is required to run at
over mains frequency, consider the capacity of the mechanical device.
5) Vibration of mechanical device
The AC drive may encounter the mechanical resonance point at certain output
frequencies, which can be avoided by setting the frequency jump parameters of the AC
drive.
6) Motor heat and noise
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frequencies, and therefore, the motor temperature, noise, and vibration are slightly
greater than those when the AC drive runs at the mains frequency.
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