Trial Operation Procedures; Setting The Power Supply Voltage Jumper (400 V Class Inverters Of 55 Kw Or Higher); Power On - YASKAWA Varispeed G7 Series Instruction Manual

Trial Operation Procedures

The procedure for the trial operate is described in order in this section.

Setting the Power Supply Voltage Jumper (400 V Class Inverters of 55 kW
or Higher)
Set the power supply voltage jumper after setting E1-01 (Input Voltage Setting) for 400 V Class Inverters
of 55 kW or higher. Insert the jumper into the power tap nearest to the operating power supply input voltage.
If the wrong jumper is selected, the Inverter may be damaged.
The jumper is factory-set to 440 V when shipped. If the power supply voltage is not 440 V, use the
following procedure to change the setting.
1. Turn OFF the power supply and wait for at least 5 minutes.
2. Confirm that the CHARGE indicator has gone out.
3. Remove the terminal cover.
4. Insert the jumper at the position for the voltage supplied to the Inverter (see Fig 4.2).
5. Return the terminal cover to its original position.
200 V Class power supply
400 V class power supply


Power ON

Confirm all of the following items and then turn ON the power supply.
Check that the power supply is of the correct voltage.
•
200 V Class: 3-phase 200 to 240 VDC, 50/60 Hz
400 V Class: 3-phase 380 to 480 VDC, 50/60 Hz
Make sure that the motor output terminals (U, V, W) and the motor are connected correctly.
•
Make sure that the Inverter control circuit terminal and the control device are wired correctly.
•
Set all Inverter control circuit terminals to OFF.
•
When using a PG Speed Control Board, make sure that it is wired correctly.
•
Make sure that the motor is not connected to the mechanical system (no-load status)
•
Power supply input terminals
Fig 4.2 Power Supply Voltage Jumper
Trial Operation Procedures
Power tap
Jumper (factory-set position)
CHARGE indicator
3
4-