Electronic Controls optimize hydraulic pump performance.

Press Release Summary:

Electronic controls for P1/PD series pumps, available with or without programmed electronic control unit (ECU), let users optimize hydraulic performance and efficiency in mobile and industrial open circuit applications. Basic functions include fan control, proportional displacement and pressure controls, and overcenter capability. Designs without ECU are available with either displacement default position and with or without displacement sensor or hydro-mechanical pressure limiter.

Original Press Release:

New Electronic Controls for Parker's P1/PD Series Piston Pumps Optimize Hydraulic Performance & Efficiency in Wide Range of Mobile & Industrial Open-Circuit Applications

MARYSVILLE, OH - Introduction of a complete new line of electronic controls that enable users to optimize hydraulic performance and efficiency in a wide range of mobile and industrial open circuit applications is announced by Parker Hannifin Corporation, the global leader in motion and control technologies. P1/PD series pumps with these Parker-developed electronic controls are available with or without a programmed electronic unit (ECU). Basic functions include fan control, proportional displacement and pressure controls, and overcenter capability for energy recovery applications.

The new Parker electronic control line provides designs with:

• "Max" displacement default position for power-loss critical applications such as fan drive application,

• "0" displacement default position for safety in mobile applications,

• Electronic displacement controls for accurate speed control and

• Electronic P/Q controls for flow and torque management.

The P1/PD pump electronic control selection covers all seven frame sizes.

Designs without the ECU are available with either displacement default position and with (or without) displacement sensor or hydro-mechanical pressure limiter. All include a directional proportional valve. Control logic is customer-programmed and can be integrated using the machine's existing ECU.

Designs with the programmed ECU feature graphical user interface (GUI) software, allowing the user to easily set up pump-specific parameters; adjust parameters for machine behavior if needed; set up data log, monitor pump, wiring and system status; and calibrate system sensor. The ECU is J1939 CANBUS compatible (pump command can be analog or CANBUS). With these controls the pump includes the displacement sensor and electronic valves as well as pressure sensor if pressure control is selected.

Equipped with electronic controls, which are fully compatible with IQAN ECU, Parker P1/PD series pumps become intelligent hydraulic components. Parker's IQAN software and MDL display modules make it possible for system designers to integrate all control systems into one including pump, sensors, throttle and engine. They allow OEMs to improve machine operation by optimizing the hydraulic performance as well as reduce fuel consumption and emissions by ensuring that the exact amount of hydraulic power is supplied when needed.

P1/PD series pumps are used worldwide in a broad range of applications including: concrete pumpers, oilfield power units, mining haul trucks, horizontal drillers, construction and forestry equipment, military transport vehicles, water jet cutters, plastic extrusion machines, head presses and injection molders, among many others.

Parker's new line of electronic controls optimize hydraulic performance and efficiency. Shown with the pump is the directional proportional control valve and displacement sensor. Shown separately is the ECU and GUI software screen.

About Parker Hannifin's Hydraulic Pump Division

The Hydraulic Pump Division of Parker Hannifin is a leading manufacturer of piston pumps, vane pumps and hydrostatic transmissions that set new industry standards for performance, precision control, responsiveness, service life, adaptability and low noise. Worldwide, Parker's advanced open- and closed-circuit pump technology helps mobile and industrial equipment users achieve greater efficiency from their hydraulic systems with the potential of reducing energy consumption. Visit www.phpump.com to learn more.

With annual sales exceeding $12 billion in fiscal year 2011, 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 mobile, industrial and aerospace markets. The company employs approximately 58,000 people in 47 countries around the world. Parker has increased its annual dividends paid to shareholders for 55 consecutive fiscal years, among the top five longest-running dividend-increase records in the S&P 500 index. For more information, visit the company's website at www.parker.com, or its investor information website at www.phstock.com.


Cindy Morrow

Director of Public Relations

WhiteSpace Creative

email: cindy@whitespace-creative.com

phone: 330.762.9320, ext. 132

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