Valve-Control Modules replace analog electronics.

Press Release Summary:

Snapped onto DIN rail, Digital Modules for electrohydraulic proportional valves can be configured to function in same way as various individual analog cards. While 3 modules include drivers for directional (PWD00A-400), throttle (PCD00A-400), and pressure control valves (PWDXXA-400), fourth module replaces accessory cards (PZD00A-400). Each unit, configured over RS232 null-modem cable via Parker ProPXD software, accepts download of user-defined custom settings.

Original Press Release:

Digital Valve-Control Modules Replace Analog Electronics

Elyria, Ohio - Parker Hannifin Corporation, the world's leading motion control supplier to mobile, industrial and aerospace markets, announces the release of its Digital Modules for electrohydraulic proportional valves. Each versatile driver module can be configured to function in the same way as a variety of individual analog cards, providing customers with flexibility at a price that is less than that of a single card. Parker is releasing four modules, with a fifth planned for beta test later this year. Three are drivers for directional, throttle and pressure control valves, while the fourth replaces accessory cards. The fifth module in beta will provide PID and other methods for external closed-loop control of cylinder position, pressure and velocity. Descriptions of the five modules are: o The PWD00A-400 drives any Parker open-loop proportional valve, with ramps and setpoints as standard parameters. o The PCD00A-400 drives standard open-loop throttle and pressure control valves, with ramps and setpoints as standard parameters. o The PWDXXA-400 drives high performance valves that have spool feedback. o The PZD00A-400 replaces accessory cards. o The PID00A-400 (beta) processes external closed-loop control of cylinder position, pressure and velocity, and provides +/-50 mA direct servo drive. Each DIN Driver Module: o Can be configured with selectable defaults or custom parameters to drive a variety of proportional valves. o Accepts download of user-defined custom settings. o Allows settings to be viewed and modified through an RS232 interface. o Allows copying of settings to another module. o Is more compact than analog Euro-cards. o Snaps on standard DIN rail, eliminating cardholders. o Employs plug-in electrical connectors. Parker Digital Modules are configured via a standard RS232 null-modem cable using free userinterface software, Parker ProPXD. No programming skills are required to use the software, which provides selectable defaults and customizable parameters for specific valves. The software displays default or previously saved values and profiles, the parameters currently stored in a module and diagnostic test signals where applicable. ProPXD software is easily downloaded from the Parker Web site at (Click Downloads under the Services heading.) Parker Hydraulic Valve Division Parker HVD offers a single source for industrial hydraulic solutions. We have an extensive product line, in-depth knowledge of our markets and the widest network of distributors in the industry. If you need help on an application, please contact your local distributor. For more information on Parker industrial products including P*D modules, or to locate your nearest Parker distributor, please call 1-800-272-7537 or visit Parker Hannifin Corporation With annual sales exceeding $8 billion, Parker Hannifin is the world's leading diversified manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of commercial, mobile, industrial and aerospace markets. The company employs more than 50,000 people in 46 countries around the world. Parker has increased its annual dividends paid to shareholders for 49 consecutive years, among the top five longest-running dividend-increase records in the S&P 500 index. For more information, visit the company's web site at, or its investor information site at

More from Thermal & Heating Equipment

All Topics