Triol AK06, Руководство по устранению неисправностей

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Troubleshooting manual
AT.654254.050 ver.1.0
Periodic maintenance of VSD Triol
The period through which it is necessary to conduct periodic maintenance of the
drive is once every six months if VSD operated, once a year if it was not in use.
Also, the maintenance is required before star after long idle time.
You need following tools and materials for periodic maintenance:
•
socket wrench set with metric standard from 8 to 19 mm inclusive;
•
set of flat spanners with metric standard from 8 to 19 mm;
•
set of hex keys with metric standard from 2 to 10 mm;
•
compressor with air nozzle to remove dust;
•
screwdriver set with bits RN1 – РН 3 and SL1-SL3;
•
torque wrench for sockets;
•
rags to remove any impurities;
•
conductive grease;
•
aerosol cleaner for connectors;
•
aluminum grease;
•
multimeter capable to measure resistance, DC and AC voltage, and varia-
ble current with a maximum measurement range of current equal to the
nominal value of VSD at which the work is conducted;
•
portable grounding device – 3 sets;
•
the key to VSD;
•
silicone grease.
1. Before carrying out the maintenance of the VSD ensure the absence of
voltage at the input terminals of the drive with the help of a tester estab-
lished on measurement of AC voltage.
Install portable grounding device on the input supply terminals of the VSD.
Wait until the backspin lamp turns off. If there is a backspin of the PMM it take
long time.
To check the absence of voltage on the output terminals of the VSD and install
portable grounding on VSD output terminals.
2. Check of torque of input power terminals, circuit breakers, overvoltage
protective circuits.
To monitor the presence of contamination at the input terminals, at presence
clean with aerosol cleaner, connectors and rags.
To inspect torque of bolted connections of terminal connections, and conductors
leading from the terminals to the power units, and the conductors coming from
the power units to the power rectifier unit.