Holip HLP-A Series, Instruction Manual

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HLP-A Series
HLP-A Series -
19
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4. Precautions on Wiring
1) For the main circuit wiring:
● While wiring the sizes and specifications of wires should be selected
and the wiring should be executed according to the electrical
engineering regulations to ensure the safety.
● It is better to use shielded wire or wire and conduit for power cord and
ground the shielded layer or two ends of wire conduit.
● Be sure to install a Non Fuse Breaker (NFB) between the power
supply and the input terminals (R.S.T). (If using ground fault circuit
interrupter, please choose one corresponding to high frequency)
● Never connect AC power to the output terminal (U.V.W) of the
inverter.
● Output wires mustn’t be in touch of the metal part of the inverter
enclosure, or it will result in earth short-circuit.
● Phase-shifting capacitors, LC, RC noise filters, etc, can never be
connected to the output terminals of the inverter.
● The main circuit wire must be enough far away from other control
equipments.
● When the wiring between the inverter and the motor exceeds 15
meters for 220V class or 30 meters for 380V class, much higher dV/dT
will be produced inside the coil of the motor, which will cause the
destruction to the interlay or insulation of the motor. Please use a
dedicated AC motor for the inverter or add a reactor at the inverter.
● Please lower the carrier frequency when there is a longer distance
between the inverter and the motor. Because the higher the carrier
frequency is the bigger the leakage current of high-order harmonics in
the cables will be. The leakage current will have unfavorable effect on
the inverter and other equipment.
Specifications of Non Fuse Breaker and Wire
Model NFB(A) Input wire
mm
2
Output wire
mm
2
Control
wire
mm
2
Screw
HLPA00D423C 16 2.5 2.5 1 M4
HLPA0D7523C 16 2.5 2.5 1 M4
HLPA01D523C 32 2.5 2.5 1 M4
HLPA02D223B 32 4 4 1 M4
HLPA03D723B 40 6 6 1 M5
HLPA05D523B 63 6 6 1 M6