I currently have what I've gathered is a rather old custom made stepper motor driver attached to a stepper motor and am unsure how to actually operate it. I have looked around online and gathered a typical setup for driving this type of motor involves 2 H-bridges but I'm not sure how the setup I have will translate to properly operating them.
I believe the stepper motor is a bipolar 2-phase stepper motor. You can see several specs at the top including TTL, input voltage, output current, and clock input (I don't exactly know what clock input means).
The inputs and outputs are labeled (and in parentheses are the configuration I found them in):
1-Motor Phase 1 (hooked to motor) 2-Motor Phase 2 (hooked to motor) 3-Motor Phase 3 (hooked to motor) 4-Motor Phase 4 (hooked to motor) 5-Outputs off (grounded) 6-4 phase/3 phase (no wire) 7-Enable (looks like it is wired to 13) 8-Enable A (wired to nothing) 9-Clock Selection (wired to 12) 10-Direction ccw (wired to nothing) 11-Clock cw (wired to nothing) 12-GND (wired to 9) 13-Voltage supply (wired to 7 with another wire going to nothing)
I have found some information for other products that seems to indicate I would need to put the specified input voltage to 13, pulse 9 with 15 microsecond square pulses, then hold 5-8 and 10-12 either at 5V or ground to change basic operating configuration. Is it that simple or am I missing something critical? I apologize that this may be rather low level stuff here but any information on how to operate this would be very much appreciated because there is no manual for this piece of equipment.