Eaton Network-M2, User Manual

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Environment
Contextual help of the web interface – 72
3.6.1.5 Troubleshooting
EMP detection fails at discovery stage
In the Network Module, in Contextual help>>>Environment>>>Commissioning/Status , EMPs are missing in the Sensor
commissioning table.
Symptom #1
The EMPs green RJ45 LED (FROM DEVICE) is not ON.
Possible causes
The EMPs are not powered by the Network module.
Action #1-1
Launch again the discovery, if it is still not ok, go to Action #1-2.
Action #1-2
1- Check the EMPs connection and cables.
Refer to the sections Servicing the EMP>>>Installing the EMP>>>Cabling the first EMP to the device and Servicing the
EMP>>>Installing the EMP>>>Daisy chaining 3 EMPs .
2- Disconnect and reconnect the USB to RS485 cable.
3- Launch the discovery, if it is still not ok, go to Action #1-3.
Action #1-3
1- Reboot the Network module.
2- Launch the discovery.
Symptom #2
The EMPs orange RJ45 LEDs are not blinking.
Possible causes
C#1: the EMP address switches are all set to 0.
C#2: the EMPs are daisy chained, the Modbus address is the same on the missing EMPs.
Action #2-1
1- Change the address of the EMPs to have different address and avoid all switches to 0.
Refer to the section Servicing the EMP>>>Defining EMPs address and termination>>>Manual addressing .
2- Disconnect and reconnect the USB to RS485 cable. The address change is only taken into account after an EMP power-up.
3- Launch the discovery, if it is still not ok, go to Action #2-2.
Action #2-2
1- Reboot the Network module.
Refer to the section Contextual help>>>Maintenance>>>Services>>>Reboot .