MoTeC Global Forum

Hi there,
I have a PDM15.
The "B" connector PDM outputs (PDM6,7,8) - each supplied by the appropriate 2 pins has voltage readings of around 3.4-3.6V relative to chassis ground. This is the reading I get when I turn all outputs off via PDM manager. I also confirmed this by unplugging the "B" connector and powering up the PDM - each of the affected pins on the PDM side reads 3.4-3.6V relative to ground with the PDM outputs programmed to off.

Is this normal? The other output pins on the "A" connector all read around 0v when the output is off.

Thanks in advance.

That is correct, with no load the output driver can float to a few volts. If you put any load on it at all it will drop to zero.