I have a Nidec 24v stepper motor that I want to try and use for a project and 24v would be perfect. It was out of a laser printer and I still have most of it's gearing and I'll need to be using at least some of that.
The stepper is connected to a pc board and it appears to be intact.
One of the problems is that, what I assume is the controller ic has a heat sink that was screwed to it from the bottom of the ic before it was soldered to the pc board and the screw heads are now "hidden" for lack of a better word. I can't get at the screws to remove the heat sink to read the part number without unsoldering the ic... I'd rather not have to do that.
There is a 6 pin connector on the board, it is the only connection on the board, and the pin outs are labeled:
- -CW/CCW
- -NC
- -GND
- -+24V
- -ON/OFF
- -LOCK
Without knowing the ic's part number, does the ic use the 24v to run motor AND itself or is it more likely the chip requires a 5v supply and if so does it use the same GND for (-)negative and the 5v(+)positive would be hooked momentarily to the control pins?
I would need to run the motor in both directions with a rocker switch but would only need a few seconds of run time when I need it... i.e. not continuous.
Also, I figure the CW/CCW is clockwise/counterclockwise but what determines the direction? A momentary signal?
Does the NC stand for normally closed and if so, what is it that's normally closed?
What is the ON/OFF pin?
What is the LOCK pin?
Thanks for any help. It's been decades since I've messed with any ic other than a 555.