Chapter 1 Safety Information and Precautions
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At Wiring
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Wiring must be performed only by qualied personnel under instructions described in this
manual. Failure to comply may result in unexpected accidents.
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A circuit breaker must be used to isolate the power supply and the controller. Failure to comply
may result in a re.
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Tie the controller to ground properly according to the standard. Failure to comply may result in
electric shock.
•
Never connect the power cables to the output terminals (U, V, W) of the controller. Pay attention
to the marks of the wiring terminals and ensure correct wiring. Failure to comply will result in
damage to the controller.
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Ensure that the cabling satises the EMC requirements and the local codes. Use wire sizes
recommended in the manual. Failure to comply may result in accidents.
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Use the shielded cable for the encoder, and ensure that the shield is reliably grounded at one
end.
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Use a twisted cable with twisted distance of 20−30 mm as the communication cable, and ensure
that the shield is reliably grounded.
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Before Power-On
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Check that the following requirements are met:
The voltage class of the power supply is consistent with the rated voltage class of the controller.
The input terminals (L, N) and output terminals (U, V, W) are correctly connected.
No short circuit exists in the peripheral circuit.
The wiring is secured.
Failure to comply will result in damage to the controller.
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For the PMSM, ensure that motor auto-tuning is performed before running for the rst time.
Failure to comply may result in motor runaway.
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Do not perform the voltage resistance test on any part of the controller because such test has
been done in the factory. Failure to comply will result in accidents.
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Cover the controller properly before power-on to prevent electric shock.
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All peripheral parts must be connected correctly under the instructions described in this manual.
Failure to comply may result in accidents.
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