Inovance MD330H - Page 12

MD380 User Manual Safety Information and Precautions
- 11 -
Use Stage
Safety
Grade
Precautions
At wiring
DANGER
• Wiring must be performed only by qualied personnel under
instructions described in this manual. Failure to comply may
result in unexpected accidents.
• A circuit breaker must be used to isolate the power supply and
the AC drive. Failure to comply may result in a re.
• 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 by standard. Failure to
comply may result in electric shock.
WARNING
• Never connect the power cables to the output terminals (U,
V, W) of the AC drive. Pay attention to the marks of the wiring
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
(+) and (-). Failure to comply may result in a re.
• 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
DANGER
• 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.
– The input terminals (R, S, T) and output terminals (U, V, W)
are properly connected.
– No short-circuit exists in the peripheral circuit.
– 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.
WARNING
• 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.
WARNING
• Do not touch the rotating part of the motor during the motor
auto-tuning or running. Failure to comply will result in accidents.
• Do not change the default settings of the AC drive. Failure to
comply will result in damage to the AC drive.