"MS" status LED (module status)/"L40"/"L23.3"

The "MS" status LEDs (correspond to "L40" or "L23.3" status LED) is present in all controllers.

LED

Meaning

Measure

–

Off

No power supply or DC 24 V supply.

  • Check the voltage supply.

Green

Flashing

The device has not been configured yet.

  • Configure the device.
  • Check the DHCP server connection (only if DHCP is activated and in persistent status).

Green

Illuminated

Device OK.

–

Red

Flashing

A correctable fault has occurred on the device.

  • Check whether there is another device with the same IP address in the network.
  • Change the IP address of the device.
  • Check the DHCP settings for IP address assignment of the DHCP server (only when using a DHCP server).

Red

Illuminated

A fault that cannot be corrected has occurred on the device.

  • Switch on the device again.
  • Reset the device to the factory settings.
  • If this fault occurs repeatedly, replace the device or contact SEW‑EURODRIVE Service.

Red/green

Flashing

The device performs a LED test.

This state may only be active for a short time during startup.

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