A-TS
84
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9.2 Periodic Maintenance
You should check the inverter every 3 months or 6 months according to
the actual environment.
Note
:
1. Only trained personnel can dismantle the inverters for repairing or
device replacement;
2. Don't leave metal parts like screws or pads in the inverter, otherwise
the equipment may be damaged.
9.2.1 General Inspection:
1
．
Whether screws of control terminals are loose. If so, tighten them with
a screwinverterr;
2
．
Whether the main circuit terminals are properly connected; whether the
mains cables are over heated;;
3
．
Whether the power cables and control cables are damaged, check
especially for any wear on the cable insulation;
4
．
Whether the insulating tapes around the cable lugs are stripped;
5
．
Clean the dust on FCBs and air ducts with a vacuum cleaner;
6
．
For inverters that have been stored for a long time, it must be powered
on every 2 years. When supplying AC power to the inverter, use a voltage
regulator to raise the input voltage to rated input voltage gradually. The
inverter should be poweredfor 5 hours without driving a motor load.
7
．
Before performing insulation tests, all main circuit input/output
terminals should be short-circuited with conductors. Then precede
insulation test to the ground. Insulation test of single main circuit terminal
to ground is prohibited; the inverter can be damaged by such a test.
Please use a 500V Mega-Ohm-Meter.
8
．
If performing insulation test to the motor, be sure to disconnect the
cables between the inverter and it. Otherwise, the inverter might be
damaged.
