Wiring Diagram for Open Loop Stepper Motor

To wire an open loop stepper motor, you need to refer to the motor's wiring diagram. If the motor's wiring sequence is A+ black A- green B+ red B- blue, you can refer to the following wiring diagram:

The OPTO of DM320T is the common terminal and should be connected to the controller VCC (5V).

Updated on: 09/12/2025