Inovance MD380 Series, User Manual

Page: 38 / 304

Mechanical and Electrical Installation MD380 User Manual
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Pay attention to the following precautions at wiring:
1) Power input terminals L1, L2 or R, S, T
– The cable connection on the input side of the AC drive has no phase sequence
requirement.
–
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with the local safety regulations and related IEC standards.
–
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recommended values in section 8.3.
2) DC bus terminals (+), (-)
– Terminals (+) and (-) of DC bus have residual voltage after the AC drive is
switched off. After indicator CHARGE goes off, wait at least 10 minutes before
touching the equipment. Failure to comply may result in.
–
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–
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or tight pair wires for parallel connection.
–
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3) Terminals (+), PB for connecting braking resistor
–
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braking unit, terminals (+), PB are effective.
– Connect a braking resistor of the recommended model, and ensure that the cable
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AC drive.
4) Terminals P, (+) for connecting external reactor
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classes), remove the jumper bar across terminals P and (+) and install the reactor
between the two terminals.
5)
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–
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with the local safety regulations and related IEC standards.
–
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recommended values in section 8.3.
– Do not connect a capacitor or surge absorber to the output side of the AC drive.
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– If the motor cable is too long, electrical resonance will be generated due to
the impact of distributed capacitance. This will damage the motor insulation
or generate higher leakage current, causing the AC drive to trip in overcurrent
protection. If the motor cable is greater than 100 m long, an AC output reactor
must be installed close to the AC drive.
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