HydraForce's ECDR-0506A electronic valve driver is designed to enhance the control of hydraulic proportional valves used for transmission control, vehicle traction control, joystick control, and mobile equipment work functions, such as lifting, lowering, and rotating. The ECDR-0506A has a 32-bit processor and six inputs capable of various signal types; four analog and two digital. It has five outputs, four are closed loop and one is open loop. Its 8 to 32 Vdc voltage rating allows it to handle a range from battery to full voltage. It is also CAN-capable, with a CAN 2.0B communication interface capable of reading CANOpen and SAE J1939 communication protocols. A bi-color LED, red and green, provides a quick status check for troubleshooting.

Designed for use in extreme environments, the ECDR-0506A driver has a robust, compact, and fully sealed housing that provides excellent environmental protection from moisture and contamination, and Deutsch connectors that qualify for the highest IP69K environmental rating. It has an operating temperature range from -40 to 85 °C (-40 to 185 °F).

The flexibility of the ECDR-0506A driver allows for the device to be easily configured for use in specialized applications, such as fan drives and transmission controls.

Design Specifications 

• Operating Voltage: 8-32 VDC
• Control Output: 1 to 2000 mA, 40 to 400 Hz
• Environmental Protection: IP69K
• Microprocessor: 32-bit 
• 12 bit A/D converter. 
• Operating Temperature: -40 °C to +85 °C 
• CE Certification: ISO 13309

For more information about HydraForce and their product line, visit their website at http://www.hydraforce.com/.

A Comprehensible Guide to J1939

SAE J1939 has become the accepted industry standard and the vehicle network technology of choice for off-highway machines in applications such as construction, material handling, and forestry machines. J1939 is a higher-layer protocol based on Controller Area Network (CAN). It provides serial data communications between microprocessor systems (also called Electronic Control Units - ECU) in any kind of heavy duty vehicles. The messages exchanged between these units can be data such as vehicle road speed, torque control message from the transmission to the engine, oil temperature, and many more.

The information in this book is based on two documents of the SAE J1939 Standards Collection: J1939/21 - Data Link Layer J1939/81 - Network Management A Comprehensible Guide to J1939 is the first work on J1939 besides the SAE J1939 standards collection. It provides profound information on the J1939 message format and network management combined with a high level of readability.

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