Hi PV
You could use MaxCL mode but if I read your man correctly, your drive is configurable so you could also use regular step/dir mode. See pages 23 to 25. Dip switch setting FR - set this to On (step/dir mode). Connect your step pin (PP pin 2) to driver pin 2 and your dir pin (PP pin 3) to driver pin 4. Then connect a nice clean 5V to driver pins 1 and 3. Then by pulling PP pins 2, 3 low you get to light up your optos and watch it dance.
Usual conditions apply - if it breaks your pooter, your driver or your heart - you get to keep the pieces.
btw i am a chartered accountant.
Hay - don't worry - someone has to be...
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Ian