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Ecowatt
®
Drive K120 series
1.3 Safety guidelines
Only qualified electricians are allowed to operate on the VFD.
Do not carry out any wiring and inspection or changing
Do not refit the VFD unauthorized; otherwise, fire, electric shock or
The base of the radiator may become hot during running. Do not
The electrical parts and components inside the VFD are
1.3.1 Delivery and installation
Please install the VFD on fire-retardant material and keep the VFD
Connect the braking optional parts according to the wiring diagram.
Do not operate on the VFD if there is any damage or components
Do not touch the VFD with wet items or body; otherwise, electric
Note:
Select appropriate moving and installing tools to ensure a safe and normal running
of the VFD and avoid physical injury or death. For physical safety, the erector
should take some mechanical protective measurements, such as wearing exposure
shoes and working uniforms.
Ensure to avoid physical shock or vibration during delivery and installation.
Do not carry the VFD by its cover. The cover may fall off.
Install away from children and other public places.
The leakage current of the VFD may be above 3.5mA during operation. Ground with
proper techniques and ensure the grounding resistor is less than 10Ω. The
conductivity of PE grounding conductor is the same as that of the phase conductor.
For models higher than 30kW, the cross sectional area of the PE grounding
conductor can be slightly less than the recommended area.
components when the power supply is applied. Ensure all input
power supply is disconnected before wiring and checking and
always wait for at least the time designated on the VFD or until the
DC bus voltage is less than 36V. The waiting time list is as follows.
VFD module
1PH 220V
other injury may occur.
touch to avoid hurt.
electrostatic. Take measurements to avoid electrostatic discharge
during related operation.
away from combustible materials.
loss to the VFD.
shock may occur.
0.4kW-4kW
-2-
Safety precautions
Minimum waiting time
5 minutes
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