February 2012 18 – 247
LED display The operational status indicator is the green ON LED:
Functional check
8 Is the green ON LED lit?
8 Are the fans running?
8 Are the output voltages +24 V NC and +24 V PLC present?
Possible causes
of error
Supply voltage missing at L1 and L2
Fan has failed
Fuse on board of the PSL 130 has blown
PSL 130 defective
DC-link voltage missing
Troubleshooting
Danger to life due to high voltages and currents!
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