DC motor driver CWD856

with integrated controllertwo-phase stepper

Product overview
The CWD856 is a 2‑phase DSP digital stepper driver with a 32‑bit processor, supporting 2.1–5.6 A at 20–80 VDC. The extended input voltage range improves motor response and dynamic performance compared with lower‑voltage variants. The device integrates anti‑resonance, an online adaptive PID algorithm and optically isolated control inputs in a compact 118 x 75 x 34 mm housing.

Key features

• 32‑bit DSP processor with anti‑resonance
• Extended voltage range: 20–80 VDC
• Online adaptive PID control algorithm
• Optically isolated control inputs (Pulse/Dir or CW/CCW)
• 16 microstep settings — up to 51200 steps/rev
• Pulse frequency up to 200 kHz
• Compact form factor: 118 x 75 x 34 mm
• Weight: specification lists 0.3 kg; overview lists 0.575 kg (see documentation)

Electrical specifications

• Model: CWD856
• Phase: 2
• Input voltage: 20–80 VDC
• Output current: 2.1–5.6 A
• Microstep: 16 settings, up to 51200 steps/rev
• Control signal: Pulse/Direction or CW/CCW
• Pulse frequency: 0–200 kHz
• Processor: 32‑bit DSP
• Dimensions: 118 x 75 x 34 mm
• Weight: 0.575 kg (overview) / 0.3 kg (spec table)

Documentation
Datasheet and mechanical drawing referenced as CWD856 are available from the manufacturer (PDF and image on the product page). Refer to the datasheet for detailed electrical tables, thermal limits and mounting instructions.

Typical applications

• Industrial motion control and automation
• CNC machinery and positioning systems
• Robotics and pick‑and‑place equipment
• Laboratory automation and test rigs