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Proportional valve electronics-product-category

Proportional valve electronics

Danfoss offers a wide range of proportional valve electronics, including amplifier cards, power plugs, DIN rail cards, and test boxes. These products enable you to build reliable solutions for pressure control, directional control, and other valve functions.

Features and benefits

Proportional valve amplifier card 

  • User-friendly front panel with all the necessary adjustments, LEDs and monitor points 
  • Electronic overload protection with automatic reset 
  • Pulse width modulation for high efficiency 
  • Can be equipped with plug-in modules for special functions 
  • Switchable ramp function generator for controlling rates of increase and decrease of output 
  • 24VDC power supply 
  • Either current or voltage input signals 
  • CE EMC compatible (2014/30/EU) and RoHS compatible (2011/65/EU) 

Servo valve amplifier card 

  • Single +24VDC power supply  
  • Standard DIN 41612 F48 interface 
  • Accepts voltage or current control signals 
  • Adjustable signals and signal ratios 
  • Independently adjustable PID networks 
  • Adjustable tracking alarm with opto-coupled output 
  • Jumper-selectable output current ranges (±50, 100, or 200 mA) 
  • Front panel LEDs, test points, and adjustments for quick, easy setup and diagnostics 

DIN rail module amplifier  

  • Integral amplifier provides essential functions for control of proportional valves 
  • Configuration of the valve through CANopen and serial communication 
  • Adjustable ramp time, gain, dead band, dither compensation through CANopen communication 
  • Ease of installation, with reduced cost 
  • Fully short-circuit and reverse-polarity protected 
  • CE EMC compatible (2014/30/EU) and RoHS compatible (2011/65/EU) 
  • 12V or 24V operation 
  • Up to 3.5A drive current per output with dual drive stages

Demand signal generator module for DIN rail mounting

  • Snap-on mounting to DIN rails 
  • 24VDC power supply with wide tolerance; standard 10VDC output signal 
  • Screw terminals simplify installation 
  • 16 selectable output levels 
  • Keypad on front panel 
  • 4 x 7-segment LED display 
  • 4-quadrant ramps with ramp times up to 99,99 seconds 

Digital power plug 

  • Integral amplifier provides essential functions for control of proportional valves. 
  • Adjustable ramp time, gain, dead band compensation through potentiometer or RS232/CAN communication (via software) 
  • Ease of installation, with reduced cost 
  • Fully short-circuit and reverse-polarity protected 
  • Differential voltage command signal 
  • Options for RS232 and CAN communication and various connectors
  • Peak and Hold Functionality 
  • CE EMC compatible (2014/30/EU) and RoHS compatible (2011/65/EU) with protection to IP67 

Switching power plug  

  • Improved control reliability 
  • Fast, consistent load switching 
  • Simple, cost-effective wiring of the application 
  • LED indicates “switched on” 
  • Same connection interface as conventional ISO 4400 (DIN 43650) plug 
  • Protection to IP67 and RoHS compliant 

Test box kit  

  • Power supply with wide range input (100VAC to 240VAC 
  • Provision for +/-10V voltage command on the positive and negative valve command input 
  • Provision for +/-20mA current command 
  • Switch to drive the Enable signal 
  • Breakout bus bar to measure all voltages and currents on the 7 pin Amphenol connector 

 Applications 

  • Power plants 
  • CNC and injection molding applications 
  • Other cabinet-mounted applications where control electronics are separate from hydraulic valve