Since this question appears to be a duplicate, I've attached my previous response to this one. However, I encourage other readers to also type in their two cents or help clarify the question.
Nagendra.
The first thing I'd like to recommend, if you're a LabVIEW programmer, is to use our Motion Control hardware. We offer motion controllers, motor drives, and integration devices for third party motor drives. With that said, a motor's peak current value is specific to each type of motor. Most motor drives allow you to step down their peak current output to match a motor's peak current. With stepper motors, the more current you provide, the stronger their holding torque. Usually, you want as much current as possible, but every motor has its max. Sanyo Denki shou
ld be able to tell you about their stepper motors' maximum current ratings.
