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PEES Components: AN237
Compatible with Denison:


Servo Amplifier

The amplifier AN237 was developed to control proportional valves in a closed-loop control.

The AN236 is used as a basic unit. By connecting a special module it is possible to drive the AN236 as the AN237 together with positioning controlled proportional valves.


  • Reverse-polarity-proof
  • Short-circuit proof
  • Ramp can be externally deactivated
  • Ramp with square-wave detection function
  • Extended ramp setting range
  • External enable (normally open circuit)
  • Power-supply minus potential is identical to the zero potential of the inputs and the zero potential of the reference voltage, making it possible to operate multiple servo-amplifiers from a common power supply.
  • High-dynamics PWM end stages
  • Various inputs for the most widely used input voltages: 1x ±10V; 1x selectable. The inputs can, in addition, also be used in differential mode.
  • LED displays for: Power on, Ramp off, Fail safe
  • Potentiometer for ramps and pump modulation mounted on front panel
  • Monitoring of position sensors
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