Indicating service mode
If the encoder is supplied with a voltage lower than that specified in chapter EI7C FS when it is switched on, it will automatically switch to the service mode. The service mode is used to configure and adjust the encoder. It may not be used as a safety encoder in this operating state.
During the process, the output drivers are disabled. The red fault history LED indicates the service mode by lighting up constantly. The green status LED reports the distance between the encoder module and the fan wheel.
Pending service work on the encoder may be performed only by SEW-EURODRIVE.