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HLP-C
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Inverters
X.Care & Maintenance, Fault Information and
Troubleshooting
The inverter will keep its normal operation for long time if the
maintenances and inspections can be periodically carried out for
it during the use.
(1) Precautions about inspection and maintenance:
● Be sure to turn off the power supply to the inverter
（
R.S.T
）
first before the inspection and maintenance.
● After confirming the main circuit power supply has been
turned off and the display has disappeard, wait until the
internal indicator lamp for high voltage goes out before
performaning the inspection and maintenance.
● During the inspection, do not pull out or wrongly distribute
the internal power supply, wires and cablesr. Otherwise it will
cause malfunction or damage to the inverter.
● Do not leave any screw or other part inside the inverter during
the installation, or it will result in the short circuit of circuit
board.
● Keep the inverter clean, ffree from dust, oil mist and moisture
after the installation.
(2) Periodical Inspection Items
● Check whether the power supply voltage conforms to the rated
voltage of the inverter. (Pay special attention that whether
there is any damage on the power supply wires and the motor.)
● Check whether the wiring terminals and the connectors are
tight (and whether the power supply wires and terminal
connection wires have any broken strand).
● Check whether there is dust, iron filings or corrosive fluid in
the inverter and make periodical cleanup.
● Never measure the inverter’s insulation impedance.
● Examine the output voltage, output current and output
frequency of the inverter. (The difference of the measuring
resuls should not be too big.)
● Check whether the ambient temperature of the inverter
