1-2
1.2 Wiring
Warning
Always turn OFF the power supply before attempting inverter installation and wiring of the user
terminals.
Wiring must be performed by a qualified personnel / certified electrician.
Make sure the inverter is properly grounded. (230V Class: Grounding impedance shall be less
than 100Ω. 460V Class: Grounding impedance shall be less than 10Ω.)
Please check and test emergency stop circuits after wiring. (Installer is responsible for the correct
wiring.)
Never touch any of the input or output power lines directly or allow any input of output power lines to
come in contact with the inverter case.
Do not perform a dielectric voltage withstand test (megger) on the inverter this will result in inverter
damage to the semiconductor components.
Caution
The line voltage applied must comply with the inv
erter’s specified input voltage. (See product
nameplate section 2.1)
Connect braking resistor and braking unit to the designated terminals. (See section 3.10)
Do not connect a braking resistor directly to the DC terminals P(+) and N(-),otherwise fire may result.
Use wire gauge recommendations and torque specifications. (See Wire Gauge and Torque
Specification section 3.6)
Never connect input power to the inverter output terminals U/T1, V/T2, W/T3.
Do not connect a contactor or switch in series with the inverter and the motor.
Do not connect a power factor correction capacitor or surge suppressor to the inverter output.
Ensure the interference generated by the inverter and motor does not affect peripheral devices.