INVT Goodrive3000 GD3000-01-055G-12 Operation Manual page 6

Goodrive3000 series medium voltage inverters
dangerous voltage inside the inverter.

Never perform insulation withstand voltage test directly on the terminals of the
inverter.

Before reconnecting the motor, please make sure the phase sequence of the motor
cable is correct.

So long as the inverter is powered on, whether it operates or not, there is
dangerous voltage on its terminals.

There is dangerous voltage over 1600V DC on the terminals (+) and (-) of the DC
bus.

There will be dangerous voltage on the output terminals of the relay. The
specific voltage level depends on the external circuits.

Do not refit Goodrive3000 series unauthorizedly; otherwise fire, electric shock or other
injury may occur.

The electrical parts and components inside Goodrive3000 series are electrostatic.
Take measures to avoid electrostatic discharge during relevant operation.
1.3.2 Grounding

Ensure good grounding of the inverter, motor and associated equipment to insure
personal safety under any conditions and effectively decrease the electromagnetic
radiation of the inverter.

Ensure the size of the grounding wire meets the requirement of applicable safety
regulations.

In the case of multi-cabinet connection, ensure independent grounding of each
cabinet.

In order to further decrease electromagnetic radiation, we suggest you to adopt
shielded cable and 360º HF link, and connect the shielded wire directly to PE to meet
the safety requirement.

The shielding layer can be used as grounding wire only when its sectional area
meets the requirement of applicable safety regulations.

When the operating leakage current of the inverter is higher than 3.5mA (DC) or
10mA (AC), independent grounding must be used to ensure personal safety.
1.3.3 Delivery and installation

As the equipment is heavy, do not move it alone. Do not move the equipment upside
down.

Ensure sufficient heat dissipation space for the equipment after installation.

Do not fix the inverter by riveting or welding.
1.3.4 Operation

Before starting the inverter, make sure the connected motor auxiliary devices meet
the operation speed requirements of the inverter. By adjusting the inverter, the
connected motor can run in the speed ranges higher than power frequency or lower
than power frequency.

If a dangerous situation exists, please do not activate the automatic fault reset
function as this function can enable the inverter, after a fault happens, reset fault
automatically and continue to operate.
-5-
Safety precautions