Mitsubishi Electric F700 Instruction Manual page 16

(3) Total wiring length
The wiring length should be 500m maximum.
(The overall wiring length for connection of multiple motors should be within the value in the table below.)
Pr. 72 PWM frequency selection setting
(carrier frequency)
2 (2kH) or less
3 (3kHz), 4 (4kHz)
5 (5kHz) to 9 (9kHz)
10 (10kHz) or more
Total wiring length (00038 or more)
When driving a 400V class motor by the inverter, surge voltages attributable to the wiring constants may occur at
the motor terminals, deteriorating the insulation of the motor.
Refer to page 36 for measures against deteriorated insulation.
·
Main circuit terminal specifications
00023 00038
300m 500m
200m 300m
100m
500m or less
300m
300m
300m + 300m = 600m
00052 or
more
500m
500m
50m
1
9