EEA-PAM-581-F-32 Vickers
Wake Industrial LLC is not an authorized distributor of this product.
The Vickers EEA-PAM-581-F-32 is part of the EEA-PAM Power Amplifiers series and features a supply voltage of 24 VDC. It has a maximum solenoid current of 3.2 Amps and a reference voltage output of +10 V at 5 mA. The amplifier weighs 330 grams and measures 175.24 mm in height, 128.4 mm in length, and 100 mm in width.
Internal Product Review
The EEA-PAM-581-F-32 from Vickers is a power amplifier designed for precise control in electrohydraulic applications, featuring a supply voltage of 24 VDC and a gain factory setting of 10%/V. With a max solenoid current of 3.2 A and a deadband factory setting at 10% of max spool stroke, this unit supports stable and efficient valve operation. Its compact mass allows for easy integration in control cabinets, making it a strong choice for demanding automation environments.
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Product Description:
Vickers manufactures the EEA-PAM-581-F-32 card for the EEA-PAM Power Amplifiers series, where it conditions command signals and drives proportional solenoid valves in hydraulic control loops. Installed in a system rack, the board turns low-level voltage references from a PLC or analog controller into controlled solenoid current so that spool position follows the commanded flow or pressure profile. By providing closed-loop current regulation on a 24-volt DC bus, the module helps machine builders integrate repeatable valve actuation without external driver hardware.
The amplifier operates from a 24 VDC supply that is internally referenced to ground through a 330-gram PCB assembly. A current input resistance of 100 Ω keeps loading on upstream electronics low, while the voltage input path presents 47 kΩ, minimizing signal distortion when the card is fed from high-impedance sources. Its reference output delivers +10 V, 5 mA so on-site technicians can generate test commands without an external generator. Downstream, the power stage sources up to 3.2 A of solenoid current; at 0 V command the bias channel still maintains 1.7 A to hold the valve in its neutral overlap region. The board’s output zero impedance of 50 Ω and a ramp active impedance of 10 kΩ isolate the driver from reactive loads, and thermal management is aided by an overall height of 175.24 mm that leaves clearance for convection inside standard 19-inch cabinets.
A factory gain of 10%/V links command voltage directly to spool stroke, while the deadband is preset to 10% Max Spool Stroke so minor input noise does not trigger valve movement. Soft-start sequences are shaped by a ramp network with a 10 kΩ active output path, preventing hydraulic shock during command changes. The card plugs into a DIN 41612 F48 edge connector, and its 128.4 mm length by 100 mm width and 14.2 mm depth fit tightly packed racks. A 50 Ω drive-zero resistor stabilizes the bridge when no command is present, and the mass remains light enough to avoid additional back-plane supports.
