Digital Controller RE 4 for Proportional Valves


Functional description

The Controller has been specifically designed for Hauhinco Control Valves and forms a closed loop circuit with hydraulic valve.

The demand values for the pressure at the working connection or the position of the setting piston are transmitted by the user by scaled voltage (0-10V) and electricity (4-20 mA) to the controller. Through the controller the demand value and the current value are compared and the valve is being calibrated until the offset is minimized. The control parameters can be altered in many areas within the control software. Further functions as for example a ramp function are also implemented. Depending on the used valve type (3/2 or 2/2 way valve) one or two valves can be controlled per one controller. The master/slave configuration of the controller allows an expansion to up to four 3/2 way valves or eight 2/2 way valves that are controlled by the master controller. The previous control cards RE1, RE2 und RE3 can be replaced with the RE4.

Technical information

  • Mechanical mounting on a standardized top hat rail according to DIN 50 022
  • Digital PID-Controller
  • Controller sampling rate 1 ms
  • Control deviation monitoring
  • Up to 8 demand values can be stored on the Controller and selected digitally
  • Demand value correction for the analog signal
  • Automatic actual value correction for the analog signal
  • Broken wire detection for analog power inputs
  • Broken wire detection for power outputs
  • Short circuit detection for power outputs
  • Adaption to Hauhinco valve construction sizes
  • Visiualization of the control variables in test mode
  • Automatic adaption of the overlap compensation for all Hauhinco Valve construction sizes
  • Analog output of internal control parameters
  • To optimize the control procedures, manual correction of single parameters are possible
  • Controller is configurable as Master/Slave, parallel valve groups can controlled
  • The initial valve position can be defined, for example „NC“ or „NO“
  • The operating and diagnostic software is designed for WIN32 compatible operating systems (e.g. Windows® Vista, Windows® 7, 8, 10 etc.)