Stepper drive, close loop, 2 phase 24~100VDC/18~80VAC, for 86mm motor

The SDW86 is a closed-loop stepper drive for 86mm frame motors (the NEMA 34 class), accepting either a 24-100 V DC supply or a 20-80 V AC supply directly.

Unlike an open-loop stepper drive, which sends step pulses and assumes the motor followed them, this drive reads back a 4000 pulse/rev encoder on the motor shaft and corrects the pulse train if the motor falls behind - a sudden load spike that would silently stall an open-loop system instead shows up as a brief correction, not a lost position. Speed runs up to 4000 rpm.

This is a drive-only product - it needs a matching closed-loop motor with the encoder already fitted, such as this catalogue's ME286T040EC, ME286T080EC or ME286T120EC, plus the separate encoder and power cables (EC1-030/EC1-080 and PC1-030/PC1-080) to connect them, none of which are included.

For the equivalent drive sized to a 57/60mm frame motor instead, the SDW60 covers the ME260T030EC in this catalogue.

Supplied by Tiny Controls in India.