Two New Valve Drivers Four Personalities

January, 2015

  PDF file of this page.
  See catalog page
  EVDR-0101A   ETDR-0101A
  EVDR-0201A   EFDR-0201A

Overview
HydraForce continues to expand its line of electronic controls with two new economical, compact, digital valve drivers. Digital control of your valves means you can set the parameters for your application in the software and every driver will perform identically. There is no tuning or adjustment required to dial-in the driver as with older analog controls.

All New Inside
These two valve drivers are all new inside with:

• 32 bit ARM processor
• 12 bit A/D converter
• Low-frequency PWM output
• Up to three control breakpoints per output
• Input and output ramps
• Status LED(s)

Standard Features
The ExDR valve drivers are compact, economical, reliable electronic drivers for proportional solenoid valves. These units are fully configurable using a computer and serial cable or CAN to USB adapter. No programming is required.

The units mount directly onto a solenoid coil via Deutsch DT06 2-pin connector. Power, input, and communications, as well as additional coil output (ExDR-0201A) are contained in a Deutsch DT04 4-pin or 8-pin
connector.

One or two status LEDs indicate coil output and also communicate error conditions. The sealed units are rated to IP69K for ingress protection, and are fully CE qualified.
 
ExDR-0101A


ExDR-0101A: Single-input valve driver offers fully configurable control of proportional valve or time-based ramping for powertrain applications.


ExDR-0201A


ExDR-0201A: Single-input, dual output valve driver controls double-coil proportional directional valve or proportional fan drive with reverse.

ExDR-0101A
The ExDR-0101A is a single output valve driver with serial communications for programming and flashing the firmware. It accepts analog voltage, current, resistance, or digital input. It drives a variety of proportional solenoid valves from HydraForce or other providers.

With two available firmware personalities this versatile driver can provide output curve shaping and metering with independent input and output ramps. You can set unique ramps for rising or falling signals. It protects your application from signal, output, or voltage faults, and an LED indicates output level or fault conditions.
 
EVDR-0101A



Design Specifications
• 9–32 Vdc operating voltage
• 50–2000 mA continuous current output
• 3 A hot-shot up to 1 second duration
• 40–400 Hz PWM frequency
• 32-bit 48 MHz ARM microprocessor
• 32 kB flash memory



  Firmware Personalities
• EVDR — single input valve driver
• ETDR — time-based valve driver
• -40 to 85 °C (40 to 185 °F) operating temperature
• IP69K ingress protection
• Deutsch DT-Series sealed connectors
• Serial TTL communications (for flashing and programming)
ExDR-0201A
The ExDR-0201A is a dual output valve driver featuring SAE J1939 CAN communications. Flashing the firmware, changing operating parameters, and input/output monitoring are possible through CAN. The driver can operate independently or as a slave, responding to messages on the CAN network.

This unit drives two-coil proportional directional valves. It features separate metering profiles for A and B coils and independent input/output ramps with unique rates for rising and falling signals. Using the EFDR firmware personality you can also drive a proportional fan control with reversing valve.
 
EVDR-0201A

Fault monitoring protects your applications from over/under voltage, signal errors, and output faults. Two status LEDs indicate the output level of each coil and communication faults or other fault conditions.
Design Specifications
• 9–36 Vdc operating voltage
• 50–2000 mA continuous current output
• 40–400 Hz PWM frequency
• 32-bit 48 MHz ARM microprocessor
• 64 kB flash memory


  Firmware Personalities
• EVDR — single input valve driver
• EFDR — proportional reversing fan controler
• 12 bit A/D converter
• -40 to 85 °C (40 to 185 °F) operating temperature
• IP69K ingress protection
• Deutsch DT-Series sealed connectors
• SAE J1939 CAN communications and networking

Firmware Personalities
Each driver has two firmware choices. The firmware sets the operating personality of the driver. You can flash the firmware to update to a new revision or change operating personality any time. The latest firmware is always available for free download from the electronics portal at www.hydraforce.com/electronics.

EVDR-0101A-EVDR-0201_scale settings

EVDR — Valve Driver Personality

EVDR-0101A / EVDR-0201A
The EDVR personality is a proportional valve driver. It allows you to set a custom metering profile for a proportional solenoid valve. The profile can have up to three breakpoints that you define. You can also set independent input and output ramps with unique rates for rising and falling signals.The EDVR personality is a proportional valve driver. It allows you to set a custom metering profile for a proportional solenoid valve. The profile can have up to three breakpoints that you define. You can also set independent input and output ramps with unique rates for rising and falling signals.
User-defined Parameters
• Input type
• Bias (for digital inputs)
• Signal error min./max.
• Up to three output scale breakpoints
 
• PWM frequency
• Input ramp up/down rate
• Output ramp up/down rate
• CAN message parameters (EVDR–0201A)
ETDR — Time-Based Valve Driver

ETDR-0101A
The ETDR firmware personality allows time-based shaping of the output for transmission/clutch control, soft start, hotshot, or other applications. The input signal triggers the output sequence. You can define six output levels and their duration in ms. You can also define the ramp down rate for output to fall back to zero after sequence completes.

ETDR_scale-settings

User-defined Parameters
• Input bias (pull-up/down)
• Output scale breakpoints (up to six)
• PWM frequency
• Ramp down rate (mA/s)
EFDR — Proportional Reversing Fan Control

EFDR-0201A
The EFDR fan drive personality allows control of a reversible hydraulic fan drive. You can scale fan speed to match input from a temperature sensor, or respond to CAN messages from the engine control module. The control can reverse fan direction: periodically, by user input (press or press and hold), on over-temperature condition, or trigger by CAN message. You can set sequencing parameters for controlling both the proportional valve and reversing valve during a reversal event.

EFDR_scale settings

reverse_sequence
User-defined Parameters
• Input type
• Bias (for PWM or frequency inputs)
• Signal error min./max.
• Output scale breakpoints
• Reverse mode (trigger)
 
• Reverse sequence parameters
• PWM frequency
• Output ramp up/ ramp down rate
• CAN message parameters

HF-Impulse
HydraForce has developed an easy to use configuration platform: HF-Impulse, available for free download from the HydraForce electronics portal at www.hydraforce.com/electronics. HF-Impulse allows you to flash devices with the latest firmware, change their personality, and configure all parameters for operation. You can even monitor operation of ExDR-0201A via the CAN interface for performance testing and troubleshooting. Once the configuration parameters are set, simply download to the device and you’re ready to run.
EVDR-0201A  
ExDR Drives Your Valves to the Next Level
For economical, accurate digital control, the HydraForce ExDR valve drivers offer:

• Easy and repeatable configuration
• Compact on-valve mounting
• Choice of control personalities
• Excellent durability and reliability
• IP69K ingress protection
• CAN communications and
   networking (ExDR-0201A)

Disclaimer: Nothing in this document constitutes an implied warranty of merchantability or of fitness for a particular purpose. The information contained in this document is provided for technical illustration purposes only and may not be used as a statement of suitability for use in any particular application. Each application is unique and prospective purchasers should conduct their own tests and studies to determine the fitness of HydraForce's products for their particular purposes and specific applications.