Safety and precautions
C220/C420 General Flux Vector Control Inverter User Manual
1. Operation shall be performed by the professional engineering technician.
Otherwise there will be danger of electric shock!
2. There shall be circuit breaker between the inverter and power supply.
Otherwise, there may be fire!
3. Make sure the power is disconnected prior to the connection. Otherwise there
will be danger of electric shock!
4. The earth terminal shall be earthed reliably. Otherwise there may be danger of
electric shock.
1. Please confirm whether the power voltage class is consistent with the rated
voltage of the inverter and whether the I/O cable connecting positions are
correct, and check whether the external circuit is short circuited and whether
the connecting line is firm. Otherwise it may damage the inverter. The cover
must be well closed prior to the inverter power-on. Otherwise electric shock
may be caused.
2. The cover must be well closed prior to the inverter power-on. Otherwise
electric shock may be caused!
3. The inverter is free from dielectric test because this test is performed prior to
the delivery. Otherwise accident may occur!
4. Whether all the external fittings are connected correctly in accordance with the
circuit provided in this manual. Otherwise accident may occur!
1.1.5 Upon Power-on
1. Do not open the cover of the inverter upon power-on. Otherwise there will be
danger of electric shock!
2. Do not touch the inverter and its surrounding circuit with wet hand. Otherwise
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