Trial Operation; Application Confirmation; Setting The Power Supply Voltage Jumper (400 V Class Inverters Of 75 Kw Or Higher); Power On - YASKAWA Varispeed E7 Instruction Manual And Parameter Description

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
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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
5. Return the terminal cover to its original position.
200 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.
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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.
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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.
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400V class power supply
Power supply input terminals
Fig 4.2 Power Supply Voltage Setting
Fig 4.2).
Connector
Jumper (factory-set position)
CHARGE indicator
Trial Operation
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