Stepping motor changes angle, speed, and direction of rotation depending on the input pulse signal.
1-Pulse (Step/Dir) Mode
This mode has two inputs for the motor: step and direction (dir) inputs. Step input accepts a pulse signal which determines angle and speed of rotation. Direction input receives either high or low digital signal that regulates direction of rotation.
![](/servlet/rtaImage?eid=ka03q000000ZkJq&feoid=00N3q00000HUsuI&refid=0EM0Z000000Sdl5)
2-Pulse (CW/CCW) Mode
This mode has CW and CCW inputs. Pulse in these inputs determines whether the motor rotates clockwise or counter clockwise.
![](/servlet/rtaImage?eid=ka03q000000ZkJq&feoid=00N3q00000HUsuI&refid=0EM0Z000000Sdl0)
In both modes, number and frequency of input pulse determines the angle and the speed of rotation, respectively.
If you are using stepping motor with NI-Motion, you can configure the mode of operation in Measurement and Automation Explorer (MAX).
- Under My System >> Devices and Interfaces >> NI Motion Devices, select the Axis of your NI-Motion board that you are going to use.
- Select Axis Configuration and choose Stepper as a type of motor.
- Select Stepper Setting tab located below.
- Choose the mode of operation required to control your motor under Stepper Output Mode.