Lenze EVS93xx - Manual (Page 33)

Troubleshooting and fault elimination
Troubleshooting
Status display via controller LEDs
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33 EDKVS93−02 EN 3.0
4.2 Troubleshooting
Detecting breakdowns
A breakdown can be detected quickly via the LEDs at the controller or via the status
information at the keypad.
Analysing errors
Analyse the error using the history buffer. The list of fault messages gives you advice how
to remove the fault. (
¶ 36)
4.2.1 Status display via controller LEDs
During operation the operating status of the controller is shown by 2 LEDs.
LED Operating status
Red  Green ‚
Off On Controller enabled
On On Mains switched on and automatic start inhibited
Off Blinking slowly Controller inhibited
Blinking quickly Off Undervoltage or overvoltage
Blinking slowly Off Fault active