MD280 User Manual                                                                          Safety Information and Precautions       
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Use Stage
Safety 
Grade
Precautions
At wiring
DANGER
 
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instructions described in this manual. Failure to comply may 
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A circuit breaker must be used to isolate the power supply and 
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Ensure that the power supply is cut off before wiring. Failure to 
comply may result in electric shock.
 
Tie the AC drive to ground properly according to the 
requirements. Failure to comply may result in electric shock.
WARNING
 
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terminals and ensure correct wiring. Failure to comply will result 
in damage to the AC drive.
 
Never connect the braking resistor between the DC bus terminals 
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 Ensure that all wiring complies with the EMC requirements 
and local safety standard. Use wire sizes recommended in the 
manual. Failure to comply may result in accidents.
 
Use a shielded cable for the encoder, and ensure that the 
shielding layer is reliably grounded.
Before 
power-on
WARNING
 
 Check that the following requirements are met:
 
–
The voltage class of the power supply is consistent with the 
rated voltage class of the AC drive.
 
–
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are properly connected.
 
–
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–
The wiring is secured.
Failure to comply will result in damage to the AC drive 
 
 Do not perform the voltage resistance test on any part of the AC 
drive because such test has been done in the factory. Failure to 
comply will result in accidents.
DANGER
 
 Cover the AC drive properly before power-on to prevent electric 
shock.
 
All peripheral devices must be connected properly under the 
instructions described in this manual. Failure to comply will 
result in accidents.
After 
power-on
DANGER
 
Do not open the AC drive's cover after power-on.  Failure to 
comply may result in electric shock.
 
Do not touch any I/O terminal of the AC drive. Failure to comply 
may result in electric shock.
 
The AC drive automatically performs safety detection on the 
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touch the U, V, W terminals of the AC drive or wiring terminals 
of the motor. Failure to comply may result in electric shock.
 
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