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
Environmental rating
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
Number of outputs
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

Configuration Example



EGDR-0101A_Dim EGDR-0101A_Wiring

To Order

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