Model 5K Servo Creep Controller

The Model 5K Servo is designed to upgrade existing dead weight creep stands into a fully programmable electromechanical load controller system.

The 5K Servo is capable of controlling tensile loads continuously up to 5000 lbs or temporarily up to 7500 lbs, over the full 3.25 inch stroke capacity of the frame. The 50-inch per minute actuator rate will quickly and accurately maintain the desired control point.

The control panel can be manually or remotely configured to control the load, stroke or strain control point in real-time. A built-in waveform generator can be programmed to cycle or ramp the control point for hours, days or even months for unattended testing. Since the 5K Servo contains a closed loop digital PID controller, the control point is accurately manipulated in real time.

The control panel has an RS-232 serial port enabling a computer to have full control of the 5K Servo for even more functionality. Languages such as LabVIEW, Visual Basic etc. can control the units operation while collecting data for long or short term data logging or real-time graphing. Custom computer based control panels can be developed to provide the required functionality for specific applications. Incorporating computer application programs to access and control the 5K Servo makes it a truly flexible unit.

The short 28" height of the load frame allows it to be mounted under a table or test stand allowing unobstructed access above the work area. Pressure vessels, temperature and humidity chambers etc. can be mounted above the work area providing a wide range of controlled environments. With the load frame mounted virtually at any angle or orientation the 5K Servo adapts to a wide range of testing requirements.

Best of all the 5K Servo does not require costly maintenance programs, special power requirements, dedicated location or expensive training like other testers.

Since the 5K Servo is designed as a general purpose instrument, the uses are limitless. From creep testing to fatigue analysis, its functionality goes a long way.

Specifications

  • Maximum peak actuator load capacity is +7500 tension (2000 lbs. Compression)
  • Maximum continuous actuator load is 5000 lbs. tension
  • Maximum actuator stroke range is 3.25 inches
  • Maximum actuator rate is 50.0 inches per minute
  • High performance Brushless Servo motor for rugged long term reliability
  • Can be mounted in virtually any position
  • Power Requirements 110 Volts 3 amps peak, 1.5 amps Nominal
  • Load frame weight 120 lbs, controller and drive weight 10 lbs
  • Load frame height is only 28 inches
  • Load is measured via mounted pancake load cell or external S-beam load cell
  • Rack mountable servo drive and servo controller
  • Load resolution: 0.2 lbs., Stroke resolution: 0.0001 inch
  • 2 adjustable internal amplifiers with external ports for remote data logging
  • Shunt calibration button is available for quick load cell verification
  • Analog load and strain is measured using a 16 bit analog to digital converter
  • Programmable digital filter ranges from 0.3125 Hz to 40 Hz
  • Results are displayed in Metric or English or custom units
  • Remote operation and data collection using integrated RS-232 serial port
  • Waveform generator supports sine, square, triangle and havercycle functions
  • Ramp generator supports single, dual and trapezoid functions
  • LCD panel constantly displays load, stroke strain data in real time
  • Security key prevents unauthorized parameter modifications
  • Load control accuracy < 0.05% full scale
  • Stroke control accuracy < 0.0025% full scale
  • Adjustable digital PID control algorithm precisely maintains control point
  • Maximum actuator response rate is adjustable from 0.00001 to 40.000 in/min
  • System parameters are stored in battery backed RAM (10 year life)
  • Analog data channels are scaled and offset to match any display units.
  • Fully programmable waveform and ramp controller
  • Control loop error can be monitored for excessive values
  • Programmable high and low limits with programmable actions
  • Overall and cycle peak monitors for each channel
  • Graphical application interface (LabVIEW, Visual Basic etc.) via RS-232 port
  • 24 MHz, Dallas 80C320 Microcontroller
  • 128k RAM, 64k of ROM, Battery backup RAM/Clock timer
  • 16 key keypad for function selection and numerical entry
  • Audio Beeper and LED to signal operation status
  • 2 channel high speed 16 bit Analog to Digital converter
  • RS-232 serial interface adjustable from 1200 to 38,400 baud
  • 4 line by 20 character LCD panel
  • High current Pacific Scientific Servo driver for quite positioning

All of Interactive Instruments systems and options have a one year warranty including Parts and Labor.