Stepper motor control unit (SECU-STEP)
Stepper motor control unit (driver). Intended for use in conjunction with SECU-3 units to drive IAC actuator, gas doser actuator or automatic choke. Can be used as stepper motor driver in other projects (control by means of STEP/DIR).
- Driver type: bipolar
- Control by using DIR, STEP signals
- Can be used with SECU-3 units as well as in other projects
- Maximum output load current is 1А
- The current from windings is removed if there are no pulses at the STEP input. If you need a permanent magnetization of the rotor, you can connect ENABLE input (U2/10) to +5. (with VT1, R7, C3 becoming unnecessary).
Manual on how to install automatic choke on carburetor using of this unit see here
Beneath, example wiring diagrams for this unit are shown:
More photos of this unit: