Troubleshooting and fault elimination
UOMu_^MVMO 8-1
8 Troubleshooting and fault elimination
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8.1 Troubleshooting
8.1.1 Display at the controller
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LED Operating status
green red
on off Controller enabled
on on Mains switched on and automatic start inhibited (AS_LC)
blinking off Controller inhibited
off blinking every second Fault message, check under C161
off blinking every 0.4 seconds Undervoltage switch-off
off off Programming mode
8.1.2 Display at the operating module
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Display Meaning
OV Overvoltage
UV Undervoltage
IMAX Set current limit exceeded
TEMP Heat sink temperature near switch-off
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