Mitsubishi Electronics FR-S500 instruction manual Wiring, Trial run, Operation

(2) Wiring

CAUTION

￿Do not fit capacitive equipment such as power factor correction capacitor, radio noise 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

CAUTION

￿Check all parameters, and ensure that the machine will not be damaged by a sudden start-up.

￿When the load GD2 is small (at the motor GD or smaller) for 400V from 1.5K to 3.7K, the 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

WARNING

￿When you have chosen the retry function, stay away from the equipment as it will restart suddenly after an alarm stop.

￿The [STOP] key is valid only when the appropriate function setting has been made. Prepare an emergency stop switch separately.

￿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.

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