User Defined Units

The PSMCC driver normally expects you to enter distances in steps and speeds in revolutions/sec. However, you can also define your own units. To define your own unit, first enter a name in the name box. In the example below, the name is "inch." The name you enter cannot be longer than four characters. Next, you must enter the number of motor steps in one of your units. For example, 20,000 steps/rev with a screw pitch of 2 turns per inch is 40,000 steps per inch.

Sometimes screw pitches are expressed as inches per turn (0.2 for example.) If that case, your steps/inch would be the steps/rev divided by the inches/turn. Finally, check the "User Units" check box. You will notice the units of the jog panel change from "rev/sec" to "inch/sec." Any program instruction dialog you open will also be operating in inches and inch/sec.

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