Electronic Vehicle Controls - Valve Drivers - Closed-loop Control


Plug-in style, single output valve driver, generator applications



A compact, plug-in style, microprocessor-based valve driver designed for use in hydraulic proportional valve applications. TheEGDR-0101A drives a single coil in closed loop control using an independent signal. The control provides a timed ramp on startup and PID closed loop settings that you configure with HF-Impulse an easy-to-use software tool available as a free download atwww.hydraforce.com/electronics. An LED output indicator is located on the front (see Dimensions).


The controller accepts an input from commonly available analog or digital operator interface devices (AC frequency detector, speed sensor, etc.) The input signal controls the output current, enabling accurate and proportional metering of the hydraulic valve. As the input changes, the PID control varies the output amperage, allowing optimum system response. Built-in diagnostics detect fault conditions that automatically deactivate the output. The controller has an LED output indicator.

Diagnostic Features:

  • Any input below 8.5 Vdc causes the controller to default to safe mode of "valve off."
  • The driver output drops and holds at the inactive stand-by condition. Any short or open circuit condition is automatically detected as an error. When the fault is corrected, the controller returns to standard operation.

Multiple Personalities

The EVDR controller is available in multiple configurations (personalities) to suit the needs of specialized applications. Choose the one that best fits your needs.

EVDR-0101A - General Purpose.

ETDR-0101A - Transmission Apps.

EGDR-0101A - Generator Control.

Electrical Parameters
Power requirements:
  • 9 to 32 Vdc
Output current:
  • 50 to 2000 mA Continuous
  • 3000 mA For one sec.
Mating connectors:
  • Deutsch DT06-4S Input
  • DT04-2P Output
Output indicator:
  • Red LED
Environmental rating:
  • IP67
Unit weight:
  • 0.079 kg (0.175 lb) without connectors
Processor and Memory
  • ARM 32-bit Cortex™-M0 CPU, 48 MHz
Flash memory:
  • 32 kB
  • 4 kB
Number of inputs:
  • 1
Number of outputs:
  • 1
Control Inputs - Analog
  • 0 to 5 Vdc
  • 0 to 10 Vdc
  • 0 to 20 mA
  • 4 to 20 mA
  • 0 to 6000 Ohm
Control Inputs - Digital
  • 0 to 100% 50 to 4000 Hz
  • 20 to 10 000 Hz
Control Output
Current control:
  • 50 to 2000 mA
PWM control:
  • 0 to 100% Duty cycle
PWM frequency range:
  • 40 to 400 Hz
EGDR-0101A_Dim(2022-02-24) EGDR-0101A_Wiring(2022-02-24)

Single Valve Driver Model EGDR-0101A: Part No. 4204850 (NOTE: If purchasing the EGDR-0101A for the first time, we suggest purchasing both the USB-TTL programming adapter and the test harness)

Configuration Software for EGDR-0101A — HF-Impulse: Free download from www.hydraforce.com/electronics.

Mating Connector Kit — DT06-4S: Part No. 4001953

Mating Connector Kit — DT04-2P: Part No. 4001958 (For remote installation)

USB-TTL Programming Adapter: Part No. 4000285

Test Harness: Part No. 4000286 (For testing and bench operation)

AC Detector: EACD-1 Part No. 4208010