4.5A CNC Stepper Motor Driver Stepper Motor Controller Board for CNC Router Engraving Machine

Description: 1) Operating voltage DC 10V-45V. DC32V switching power supply is recommended.  2) high-speed optical coupling 6N137, ensure high speed without losing step.  3) Toshiba's new high current, high voltage TB6600HG new original chip, there are low-pressure shut-off, overheating parking and over-current protection circuit, short-circuit protection and increased compared to TB6560.  4) Rated maximum output reached: ± 4.5A.  5) for 4.2A 42,57,86 within the two-phase / four-phase / four-wire / six-wire stepper motor.  6) Automatic half current function.  7) Subdivision: full step, half step, 1/4-step, step 1/8, 1/16-step, up to 16 segments.    Feature: 1. The output current is steplessly adjustable to meet your various application requirements.  2. Automatic half-flow function. It is also equipped with an automatic half-flow switch, which is easy to use.  3. Using 6N137 high-speed optical lotus root to ensure high speed without losing step.  4. The subdivision setting instructions