TD20 Series VFD
Safety Precautions
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1.3 Safety guide
•
Only qualified electricians are allowed to operate on the VFD.
•
Do not carry out any wiring and inspection or changing 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. Below is the table of the waiting time:
VFD module
Minimum waiting time
1PH 110V
0.4
–1.1kW (0.5–1.5HP)
5 minutes
1PH 220V
0.4
–
2.2kW (0.5
–3HP)
5 minutes
3PH 220V
0.4
–
0.75kW (0.5
–1HP)
5 minutes
3PH 460V
0.75
–
2.2kW (1
–3HP)
5 minutes
•
Do not refit the VFD unauthorized; otherwise fire, electric shock or other injury may
occur.
•
The base of the radiator may become hot during running. Do not touch to avoid hurt.
•
The electrical parts and components inside the VFD are electrostatic. Take
measurements to avoid electrostatic discharge during relevant operation.
1.3.1 Delivery and installation
•
Please install the VFD on fire-retardant material and keep the VFD away from
combustible materials.
•
Connect the braking optional parts (braking resistors, braking units or feedback
units) according to the wiring diagram.
•
Do not operate on the VFD if there is any damage or components loss to the VFD.
•
Do not touch the VFD with wet items or body, otherwise electric shock may occur.
•
Solid-state motor overload protection is performed when the VFD runs at 150% of
FLA.
•
The VFD does not provide motor over-temperature protection.
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 VFD cannot meet the requirements of low voltage protection in IEC61800-5-1 if the altitude of
the installation site is above 2000m.
•
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 (with the same cross sectional area).
Содержание TD20 Series
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