Goodrive3000 series medium voltage VFD Safety precautions
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measure whether the voltage between the VFD bus terminals (+) and (-) is below 36V.
Do not touch control components of the VFD or external circuits connected with it, as
even when powering down the VFD, the external control circuit may cause dangerous
voltage inside the VFD.
Never perform insulation withstand voltage test directly on the terminals of the VFD.
Before reconnecting the motor, please make sure the phase sequence of the motor
cable is correct.
So long as the VFD 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 the VFD unless authorized; 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 VFD, motor and associated equipment to insure
personal safety under any conditions and effectively decrease the electromagnetic
radiation of the VFD.
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 VFD 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 VFD by riveting or welding.
