Hi Bill,
I just try to drive feeder above with 12VCC and pulse with +12VCC for feed but (I should have used IMHO 12VAC):
- when connect (at idle) +12VCC and GND from power supply nothing happen (current absorbed 0ma)
- when pulse +12VCC to third wire (green+yellow) the motor feed infinitely (current absorbed 200ma)
- so I powered off power supply for stop feeding
- when try to power in for another test, the current absorbed was 400ma and PTC resistor very heat so now seems blocked or burnt
As mention Bernd in thread, him drive to 30V but I think with 30VCC (or VAC?? on board was exsist diode bridge as you can see) fried controller board.
Does this make sense?
LAG