Lenze EVF9383 - Manual (Page 387)

Troubleshooting and fault elimination
Troubleshooting
Status display via controller LEDs
9
9.2
9.2.1
l
9.2−1 EDSVF9383V EN 7.1−04/2012
9.2 Troubleshooting
A breakdown can be detected quickly via the LEDs at the controller or via the
status information at the keypad.
Analyse the error using the history buffer. The list of fault messages gives
you advice how to remove the fault. (
¶ 9.5−1)
9.2.1 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 is enabled
On On Mains is switched on and automatic
start is inhibited
Off Blinking
slowly Controller is inhibited
Off On Motor data identification is being
performed
Blinking
quickly Off Undervoltage
Blinking
slowly Off Active fault
9.2.2 Fault analysis with the history buffer
Faults can be retraced via the history buffer. Fault messages are stored in the
8 memory locations in the order of their appearance.
The memory locations can be retrieved via codes.
Detecting breakdowns
Analysing errors
Retracing faults