Mitsubishi Electric A800 User Manual

Countermeasures against deterioration of the 400 V class motor insulation
PRECAUTIONS FOR USE OF THE INVERTER
73
3
3.4 Countermeasures against deterioration of
the 400 V class motor insulation
In the PWM type inverter, a surge voltage attributable to wiring constants is generated at the motor terminals. Especially in a
400 V class motor, the surge voltage may deteriorate the insulation. When the 400 V class motor is driven by the inverter,
consider the following countermeasures:
• Countermeasures
For the 400 V class motor, use an insulation-enhanced motor
.
Specifically,
- Order a "400 V class inverter-driven insulation-enhanced motor".
- For the dedicated motor such as the constant-torque motor and low-vibration motor, use an "inverter-driven dedicated
motor".

Mitsubishi Electric A800 Specifications

General

Brand	Mitsubishi Electric
Model	A800
Category	Inverter
Language	English