
M a i n t e n a n c e
Power Module DN
Version 09.2019
Page 29/43
8
Maintenance
Maintenance, repairs and opening of the device only by skilled personell.
•
Wait 10 minutes for capacitor discharge before opening
Opening of the inverter results in loss of warranty.
8.1 Daily maintenance interval
8.1.1 Visual check
•
Supply cable (incl. cable relief)
•
Coil module connector, connection cable (incl. cable relief)
8.2 Monthly maintenance interval
8.2.1 Visual check
•
Housing damage
•
Contamination can lead to short-circuits and failure of the device
•
Breakaway torque check of electric connectors. Poor contacts can lead to heating and
fire.
8.2.2 Functional check
•
Control elements and indicators
•
Emergency stop
•
Demagnetization check: Measurement of residual magnetism at demagnetized
objects.
8.2.3 Maintenance
•
General cleaning
8.3 Yearly maintenance interval
8.3.1 Functional check
•
Maximal current check according to chapter Troubleshooting