EEA-PAM-525-A-12 Vickers
Wake Industrial LLC is not an authorized distributor of this product.
The Vickers EEA-PAM-525-A-12 is part of the EEA-PAM Power Amplifiers series and has a weight of 330 grams. It operates with a power supply of 24 V DC at 50 W and supports a voltage input range of 0 to ±10 V. The amplifier can deliver a maximum solenoid current of 2.7 A and operates at temperatures from 0 to 50 degrees Celsius.
Internal Product Review
The EEA-PAM-525-A-12 is a Vickers power amplifier well suited for precise electrohydraulic control, with a 24 V DC x 50 W power supply and a 20 to 40 V DC supply range. Strong tuning flexibility comes from a 50 ms to 5 s ramp time range and a maximum solenoid current of 2.7 A, supporting stable valve response under varying loads. A 0 to ±10 V voltage input range with 47 kΩ input impedance makes the unit especially appealing for clean analog integration.
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Product Description:
The EEA-PAM-525-A-12 is a plug-in power amplifier card produced by Vickers for the EEA-PAM Power Amplifiers series. Installed in a 19-inch rack, it translates voltage or current reference commands from a PLC into controlled coil current for proportional hydraulic valves, allowing machinery to regulate pressure or flow electronically. The board sits between the controller and the valve solenoid, regulating power to the actuator while providing onboard reference and ramp functions for smooth motion in industrial automation.
The amplifier draws its main power from a 24 V DC, 50 W source and operates within a bus range of 20 to 40 V DC. It shuts down when the supply falls below 18 V, protecting the output stage from unstable operation. System logic is powered separately by a stabilized ±15 V, 50 mA control rail. The card delivers up to 2.7 A of solenoid current, while adjustable ramps allow acceleration and deceleration times from 50 ms to 5 s. Command voltage is accepted through an input impedance of 47 kΩ over a range of 0 to ±10 V. Current commands use a 100 Ω input over a range of 0 to ±20 mA. The board also provides a ±10 V, 5 mA reference for external potentiometers or sensors.
Dynamic response is adjusted by a gain potentiometer with a range of 2.5 to 10%/V, and the gain is preset to 10%/V. A factory-set deadband of 15% suppresses small command deviations that could cause unintended valve movement. The card operates at temperatures from 0 to 50 °C, supporting use in temperature-controlled industrial enclosures. The assembly weighs 330 g, adding little mass to the rack or control cabinet. Its ramp generator operates bidirectionally, allowing separate motion in either command direction. A gain trimmer supports fine adjustments, and the rated current and voltage input impedances provide consistent interaction with upstream analog control hardware.
