Peter Cauchy wrote: > I have picked up a pair of slo-syn ss2000-md7 drivers, and following the > docs, hooked them up. The only problem I am having is they will not > change direction. I have gotten a 7406 IC as noted in the docs, and > this did not fix the problem, as well as changing one pair of the leads > as some other people have suggested. All to no avail. > Try connecting the step signals to what you think are the direction input, and direction to the step input. If it now only moves in the other direction, then your SloSyn driver is expecting pulses on one input for CW and on the other input for CCW. This is a fairly common command scheme, sometimes called 1 pulse, and the step/direction scheme is called 2 pulse (1P/2P). There may be an option setting on the driver to convert it to 2P or step/direction. If not, there is a step ouput selection for this type of command.
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