Mitsubishi Electric FR-S520E Series Instruction Manual page 4

(2) Wiring
Do not fit capacitive equipment such as power factor correction capacitor,
capacitor type filter (option FR-BIF(-H)) or surge suppressor to the output of the
inverter.
The connection orientation of the output cables U, V, W to the motor will affect the
direction of rotation of the motor.
(3) Trial run
Check all parameters, and ensure that the machine will not be damaged by a
sudden start-up.
When the load GD
output current may vary when the output frequency is in the 20Hz to 30Hz range.
If this is a problem, set the Pr.72 "PWM frequency selection" to 6kHz or higher.
(When setting the PWM to a higher frequency, check for noise or leakage current
problem and take countermeasures against it.)
(4) Operation
When you have chosen the retry function, stay away from the equipment as it will
restart suddenly after an alarm stop.
Since the [STOP] key is valid only when functions are set (refer to page 115),
provide a circuit and switch separately to make an emergency stop (power off,
mechanical brake operation for emergency stop, etc).
Make sure that the start signal is off before resetting the inverter alarm. A failure to
do so may restart the motor suddenly.
The load used should be a three-phase induction motor only. Connection of any
other electrical equipment to the inverter output may damage the equipment.
Do not modify the equipment.
Do not perform parts removal which is not instructed in this manual. Doing so may
lead to fault or damage of the inverter.
CAUTION
CAUTION
2
is small (at the motor GD or smaller) for 400V from 1.5K to 3.7K, the
WARNING
A-3