Weird intermittent bug involving proximity sensors and homing

Sounds a bit more like a missing/unconnected field common/ground so as soon as you enable the drives or turn on a relay, field common is pulled up to +24V

PCW wrote: Sounds a bit more like a missing/unconnected field common/ground so as soon as you enable the drives or turn on a relay, field common is pulled up to +24V

Thanks ! Found an unconnected wire ... now everything works fine ... still don't know how it could have happened but ... that was the problem so thanks a lot for the insights

andypugh wrote:

Mike@CNCproCuts.com wrote: the 7i84 inputs will have names like "hm2_5i25.0.7i84.0.0.input-00"
You should be able to find them in Halshow

I had not connected the VIN yet ... now I see it so thanks

Thougt it was solved ... worked fine for 24hrs ... now the problem is back ... very strange ... could a ground loop take time to accumulate voltage ?

Closing it for 30 minutes ... now it works ... intermittent ... back to square one ...

Sounds like a wiring problem somewhere. Check all your connections, plugs, etc. You said you found one loose connection, there could be others.