SS-20806 closed-loop stepper driver

At 25,600 command steps per revolution, a 200,000-pulse/s ceiling corresponds to 200,000 ÷ 25,600 × 60 = 468.75 r/min. This is a calculated command-rate limit, not a promised motor speed. A controller with a lower output rate gives a lower limit; the motor load and available torque may constrain speed further. Choose resolution together with the required travel speed instead of automatically selecting the largest number.

The driver needs about one second for power-up self-check before responding normally. The manual says resolution-switch changes take effect after repowering. Coordinate startup sequencing and controller scaling so the machine does not send its first move before the driver is ready or continue using the old steps-per-distance value.

The standard interface is single-pulse plus direction; a dual-pulse requirement is a custom configuration in this manual. The input section describes TTL, open-collector and differential arrangements over a stated 3–24 V signal range. Ask for the connection diagram matching the controller output and delivered driver, including pulse width and direction timing.

The manual explains that higher supply voltage can improve high-speed torque while increasing driver loss and temperature. Its peak phase-current figure must not be used directly as the supply-current requirement. Give the motor reference, acceleration, maximum load and number of simultaneously moving axes so supply capacity and voltage rise during deceleration can be reviewed.