Diagnostics And Fault Elimination; Led Status Display - Lenze C 750 Mounting Instructions

Diagnostics and fault elimination

LED status display

The controllers are equipped with LEDs indicating the current operating status. Depending on the running
software application, different control modes of the LEDs are possible.
LED status display
"RDY" LED (blue/yellow) Meaning
Off Device is switched off.
Device is starting up.
Device is ready for operation.
Voltage is underrun.
LED status display
"ERR" LED (red) State
Off NO REACTION
WARNING
TROUBLE
ERROR
LED status display
"RUN" LED (yellow/ Meaning
green)
Off Device is switched off.
PLC project is being loaded.
PLC project is stopped.
PLC project is started.
LED status display
"STA" LED (yellow/ Meaning
green)
Off Device is switched off.
Update/Downgrade process is running.
Update/Downgrade process is carried out.
Meaning
There are no active error responses in the device.
The device reports a warning. The functioning of the device differs from the
expected behavior.
The device reports a fault. The functioning of the device is impaired.
The device reports an error. The functioning of the device is defective.
Diagnostics and fault elimination
LED status display
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