Digital Servo Control

GCTS is known around the world for our advanced testing systems, and at the heart of every system is one of our Direct Digital Servo Controllers. The controllers provide the closed-loop feedback control required of complex testing procedures, allowing each output channel (axial load, confining pressure, etc.) to be controlled by any measured or calculated parameter. In addition, they also provide the signal conditioning and data acquisition for all the system sensors in a single, compact unit. Combined with the CATS Software package, these SCON units offer a complete solution for system control.

While the SCON units are designed to control GCTS systems, we also have extensive experience upgrading older testing systems with new electronics. This comes from either replacing an old control unit or completely upgrading a manually operated testing system with new sensors, servos, controller, and software. Please contact us for more information about how we can upgrade your system.


Download the SCON-3000 PDF Brochure


  • 3.4 GHz micro-processor with 2GB RAM and a 16GB solid state disk
  • 10 kHz maximum loop rate
  • 24-bit resolution
  • Adaptive digital servo control with WindowsTM (8 or newer, Professional) interface software
  • Accepts up to 23 analog input or output modules in any combination (up to 8 maximum output modules)
  • Automatic sensor recognition
  • ±5 Volt adjustable offset range
  • ±5 Volt DC excitation
  • 5 Volt RMS @ 3 kHz AC excitation
  • ±10 volt output board with 25 mA maximum current
  • 325 mA maximum output
  • ±15 VDC and +24 VDC power
  • Null and gain control
  • 8 Digital Inputs and 8 Digital Outputs
  • Watchdog timer to detect control program status for automatic interlock shutdown
  • Internal and external temperature monitoring


Download the SCON-1400 PDF Brochure


  • 850 MHz micro-processor with 256 MB RAM and 2GB solid state disk
  • 2 kHz maximum loop rate
  • Wireless (WiFi) communication
  • Adaptive digital servo control with Windows™ interface software
  • Four (4) total strain gauge (load cell, Pressure transducer, etc.) and DC (temperature) input channels with 10 VDC excitation voltage
  • Four (4) AC sensors input channel with 3 Vrms excitation voltage @ 3 kHz frequency
  • Two (2) 0-5 VDC inputs
  • Four (4) servo proportional control outputs with ±10 volt signal output and 24 VDC supply (1 amp. Maximum). Configurable 16-bit resolution and 325 mA
    maximum output servo amplifier board to drive servo valves
  • Automatic sensor recognition
  • 16-bit (+/-0.003%) resolution
  • Null and Gain digital control
  • Watchdog timer to detect control program status for automatic interlock shutdown
  • Motor on/off control signal and remote oil temperature and oil level readouts as well as power, motor and filter status feedback
  • Internal & external temperature monitoring


Download the SCON-S PDF Brochure


  • 24-bit resolution
  • Eight (8) analog input channels
  • One (1) servo-proportional control output channel with ±10 V signal or ±100 mA current output
  • One (1) ±10 V servo proportional control output
  • 1,000 Hz simultaneous sampling
  • 1 MHz oversampling
  • Digital gain control
  • TCP/IP communication
  • LabView-compatible
  • Front keypad and screen for local control


  • 110-240 VAC / 50-60 Hz / 2 amps

Are you interested in our Digital Servo Control solution? Contact us today!

Digital Servo Control

Product - Contact Form

  • This field is for validation purposes and should be left unchanged.