EEA-PAM-533-C-32 Vickers
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The Vickers EEA-PAM-533-C-32 is part of the EEA-PAM Power Amplifiers series, designed with a 24 V DC nominal input voltage and a maximum input power of 50 watts. This amplifier supports a maximum solenoid current of 2.7 amps and features a drive enable voltage range between 9.8 and 40 volts. Its control output voltage is ±15 V with a maximum control output current of 50 mA.
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Product Description:
The EEA-PAM-533-C-32 power-amplifier card is produced by Vickers within the EEA-PAM Power Amplifiers series. Installed in a hydraulic valve electronics rack, it interprets low-level voltage references from a PLC or motion controller and translates them into controlled coil current for proportional solenoids. By acting as the interface between digital logic and fluid-power actuators, the board maintains precise spool displacement so that flow or pressure remains stable throughout an automated cycle.
The module draws up to 50 W from a nominal 24 V DC cabinet bus; operation continues down to 20 V without loss of regulation. Internal regulators form a balanced control rail that allows a differential swing of ±15 V. The card supplies up to 50 mA of control-loop current to external feedback networks, while its power stage can deliver 2.7 A to a connected proportional solenoid, establishing the upper limit of hydraulic force that can be commanded. Input terminals accept industrial crimp lugs and include noise filters that help the installation meet EMC targets for conducted emissions.
Signal scaling is preset at a factory gain of 10 %/V, so every volt of reference alters spool position by one-tenth of full stroke. Drive excitation becomes active only when the enable line exceeds 9.8 V and may remain engaged up to 40 V, accommodating both transistor and relay logic sources. A shut-down threshold of 18 V DC removes coil power if the supply collapses, preventing unintended partial actuation. For external controllers, the board provides a precision reference output rated at 5 mA with a ±10 V span, and the logic input path draws just 10 mA at switch-on, minimizing PLC loading.
