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1pc. - $1005.00
50pc. - $753.75
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AC Advanced Microstep Drive w/ Q Programming & Encoder Input
(click to enlarge)

Product Features

  • 744 lines of stored program capability
  • Math calculations using analog and digital parameters
  • 7 digital inputs, 3 digital outputs, all optically isolated
  • 2 analog inputs, +/-10 volt range
  • Stall prevention/detection with encoder feedback
  • Advanced anti-resonance algorithm
  • Torque ripple smoothing
  • Microstepping to 51,200 steps/rev
  • Idle current reduction
  • 32 axis multi-drop capability
  • RS-232 cable and all mating connectors are included
  • Compatible with many 3rd party HMIs
  • Capable of all “S” drive control modes
  • RoHS Logo
  • CE Logo
  • UL Logo

Product Details

The STAC6-Q stepper drive is a powerful, two-phase, bipolar step motor drive for high-speed, high-torque applications. It employs sophisticated current control designed for optimal smoothness over a wide speed range. Anti-resonance, torque ripple smoothing, and microstepping work together to bring step motor performance to a new high.

The STAC6-Q operates on single-phase 120 VAC and outputs up to 6.0 A/phase (peak-of-sine) to the step motor. It features over-voltage, over-temperature, and over-current protection and is complemented by a specially matched set of low-loss NEMA 23 and NEMA 34 frame step motors.

The STAC6-Q can operate in all of the same control modes as an S drive, plus it has the ability to run stand-alone Q programs stored in non-volatile memory. Q programs are created using the Q Programmer™ software, which provides multi-tasking, math functions, conditional processing, data register manipulation, and more features in a robust yet simple text-based programming language

For connecting to external devices such as limit switches, proximity or photoelectric sensors, PLC I/O, lamps, and other devices, the STAC6-Q stepper drive comes with 7 digital inputs, 3 digital outputs, and 2 single-ended analog inputs (analog inputs can be wired together as 1 differential analog input). Additional I/O is available for Q drives by ordering the STAC6-QE model, which adds 8 digital inputs and 4 digital outputs to the base I/O.

The STAC6-Q stepper drive comes with an RS-232 port for configuration and programming. It also provides an RS-485 port for streaming serial (SCL) and Q commands over serial networks with up to 32 axes.

Each STAC6 drive comes with an encoder feedback connector for applications that demand a higher level of position control than ordinary open-loop step motor systems can provide. Use our double-shaft step motors with incremental encoders and activate either Stall Detection or Stall Prevention in the drive. Stall Detection notifies the system as soon as the required torque is too great for the motor, which results in a loss of synchronization between the rotor and stator, also known as stalling. Stall Prevention automatically adjusts motor speed to maintain synchronization of the rotor to the stator under all conditions. This unique feature allows step motors to operate in a much broader range of applications than previously possible, such as torque-control. The Stall Prevention feature also performs static position maintenance, which maintains the position of the motor shaft when at rest. Additionally, the inclusion of the optional encoder allows the motor to be precisely homed to the index (marker) pulse.

The STAC6-Q is UL Recognized (File No. E310506), CE approved, and RoHS compliant.

Model Number
Part Number
Supply Voltage
94-135 VAC
Supply Voltage Type
Control Modes
  • Streaming Commands
  • Analog Positioning
  • Encoder Following
  • Q Programming
Output Current
0.5-6.0 A/phase
Communication Ports
  • RS-232
  • RS-485
Encoder Feedback
Step Resolution
  • Full
  • Half
  • Microstepping
  • Microstep Emulation
Idle Current Reduction
Setup Method
Software setup
Digital Inputs
Digital Outputs
Analog Inputs
1 differential or 2 single-ended
6.35 x 4.66 x 2.31 inches
32 oz
Operating Temperature Range
0-55 °C
Ambient Temperature Range
0-55 °C
Ambient Humidity
90% max, non-condensing
Status LEDs
1 red, 1 green
Circuit Protection
  • Short circuit
  • Over-voltage
  • Under-voltage
  • Over-temp
STAC6-Q torque curve imageSTAC6-Q torque curve imageSTAC6-Q torque curve imageSTAC6-Q torque curve image
Software Downloads
Sample Code
Part No. 5000-112
1pc. $1005.00
25pc. $864.30
50pc. $753.75
100pc. Contact us for 100+ piece pricing.

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  • Serial Programming Cable for RS-232 Ports
  • Encoder Extension Cable, 10 ft
  • USB to RS232 serial adapter
  • USB-Serial Adapter for RS-232/422/485 Ports
  • Breakout Board for 25-pin D-Sub Connectors