Holip HLP-A Series, Instruction Manual

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HLP-A Series
HLP-A Series -
87
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phase to phase withstand voltage against shock than the maximum shock
voltage.
(7) The starting of the inverter interferes other control devices
1) Decrease the carrier frequency and reduce the number of actions of internal
switches.
2) Install a noise filter at the power input of the inverter.
3) Install a noise filter at the output of the inverter.
4) Make correct grounding for the inverter and the motor.
5) Use metal conduit to tube the cable to shield it.
6) Make separate wiring for the main circuit wires and control wires.
(8) When the fan starts the inverter detected an over-current stall.
1) At start the fan rotates idly. Please set it for DC braking at start.
2) When DC braking at start has been set increase the DC braking value.
(9) The machine has the noise of vibration or roar
1) The vibration f requency of mechanical system resonates with the carrier.
Adjust the carrier to avoid the point of resonance.
2) The vibration f requency of mechanical system resonates with the output
frequency of the inverter.
a. Set it for skip f unction to avoid the point of resonance.
b. Put rubber vibration isolator on the base plate of motor.