ST5-Q and ST10-Q - High Performance Stepper Motor Drives with multiple control options.

Stepper Motor Drives ST-Q
Advanced Current Control
Anti-Resonance
Torque Ripple Smoothing
Microstep Emulation
Stall Detection/Prevention
Executes stored Q programs
Networking with RS-485 or Ethernet options
Conditional processing & multi-tasking
Math functions, register manipulation
Encoder following
Pulse and direction: pulse/direction, CW/CCW, A/B quadrature
RS232 interface
8 digital inputs, 2 analog inputs
4 digital outputs