Goodrive35 Series Closed-loop Vector Control VFD Safety precautions
4
2. The permanent magnet synchronization motor has stopped running
and measured to ensure the output voltage of the VFD is less than 36
V.
3. The waiting time of the permanent magnet synchronization motor after
stopping is no less than the time designated and measure to ensure
the voltage between + and – is less than 36 V.
4. Ensure the permanent magnet synchronization motor does not rotate
again because of the external load. It is recommended to install
effectively external brake devices or disconnect the electric wiring
between the motor and the VFD directly.
Note:
Do not switch on or off the input power supply of the VFD frequently.
For VFDs that have been stored for a long time, check and fix the capacitance and try to run it
again before utilization (see Chapter 9 "Routine maintenance").
Cover the front board before running, otherwise electric shock may occur.
1.4.3 Maintenance and replacement of components
Only qualified electricians are allowed to perform the maintenance,
inspection, and components replacement of the VFD.
Disconnect all power supplies to the VFD before the terminal wiring. Wait for
at least the time designated on the VFD after disconnection.
Take measures to avoid screws, cables and other conductive matters to fall
into the VFD during maintenance and component replacement.
Note:
Please select proper torque to tighten screws.
Keep the VFD, parts and components away from combustible materials during maintenance
and component replacement.
Do not carry out any isolation and pressure test on the VFD and do not measure the control
circuit of the VFD by megameter.
Carry out a sound anti-electrostatic protection to the VFD and its internal components during
maintenance and component replacement.
1.4.4 Scrap treatment
There are heavy metals in the VFD. Deal with it as industrial waste.
When the life cycle ends, the product should enter the recycling system.
Dispose of it separately at an appropriate collection point instead of placing it
in the normal waste stream.
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