Trial Operation
4-3
Trial Operation
The procedure for the trial operation is described in order in this section.
Application Confirmation
First, confirm the application before using the Inverter. It is designed for:
• Fan, blower, pump
Setting the Power Supply Voltage Jumper
(400 V Class Inverters of 75 kW or Higher)
The power supply voltage jumper must be set for 400 V Class Inverters of 75 kW or higher. Insert the jumper
into the voltage connector nearest to the actual power supply voltage.
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.
Fig 4.2 Power Supply Voltage Setting
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.
• Make sure that the motor is not connected to the mechanical system (no-load status) if possible.
Connector
Jumper (factory-set position)
CHARGE indicator
200 V class power supply
400V class power supply
Power supply input terminals
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