Status LED "SF" (SYS FAULT)/"L40"

The status LED "SF" or "L40" is present in the following controllers:

  • MOVI-C® CONTROLLER UHX65A‑R (L40)
  • MOVI-C® CONTROLLER UHX85A‑R (SF)

Status

Possible cause

Measure

Off

Error-free operating state

Red, flashes for 3 s

Switch-on time: 500 ms

Switch-off time: 500 ms

To localize the network stations visually, the flashing test has been activated in the configuration of the PROFINET controller.

Red

Permanently lit

Error in hardware or configuration (channel/system error)

Switch the device off and back on again.

Check the configuration.

If the fault occurs repeatedly, contact SEW-EURODRIVE Service.