INVT GD300-004G-4, Operation Manual

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Goodrive300 inverters Safety precautions
8
 The inverter may start up by itself when P01.21=1. Do not get close to
the inverter and motor.
 The inverter can not be used as “Emergency-stop device”.
 The inverter can not be used to break the motor suddenly. A mechanical
braking device should be provided.
 Besides the above items, check to ensure the following ones before the
installation and maintenance during the running of the permanent
synchronization motor:
1. All input power supply is disconnected (including the main power
supply and the control power supply).
2. The permanent magnet synchronization motor has stopped
running and measured to ensure the output voltage of the inverter
is less than 36V.
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 b and – is less than 36V.
4. Ensure the permanent magnet synchronization motor does not
rotate again because of the external load. It is recommended to
install effectively external braking devices or disconnect the electric
wiring between the motor and the inverter directly.
Note:
 Do not switch on or off the input power supply of the inverter frequently.
 For inverters that have been stored for a long time, check and fix the capacitance and
try to run it again before utilization (see Maintenance and Hardware Fault
Diagnose ).

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 inverter.

Disconnect all power supplies to the inverter before the terminal wiring.
Wait for at least the time designated on the inverter after disconnection.

Take measures to avoid screws, cables and other conductive matters to
fall into the inverter during maintenance and component replacement.