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[DRR245] Isolation
Posted: 15/05/2015, 12:27
by user7736
Hello,
Is DRR245 grounds isolated?
Re: DRR245 ground
Posted: 15/05/2015, 12:31
by Pixsys tecnico 1
Hi,
power supply is isolated form Analog input, also analog output is isolated form power supply. Power supply only need neutral and phase line, not ground (isolated).
Re: [DRR245] Isolation
Posted: 22/02/2018, 11:34
by user7736
Hi,
we have one place where we have some problems with Modbus communication.
When there is no connection with Input sensor (PT100 - 3 wire), then we can read process value trough Modbus, but when we connect PT100, we can not reach DRR245.
HAve You seen such kind of situation?
Re: [DRR245] Isolation
Posted: 22/02/2018, 11:37
by Pixsys tecnico 1
Hi,
try to connect the PT100 to the DRR245 but keep the probe on your hand or on a isolated table (wood etc). I think is because the rs485 shield is connected to the ground and also the cable of the probe (in this way you lose the insulation).