EEA-PAM-523-B-32

EEA-PAM-523-B-32 is a Vickers power amplifier in the EEA-PAM Power Amplifiers series. It operates from a nominal 24 VDC supply and has a rated power of 50 W for driving and controlling a connected hydraulic valve solenoid. The solenoid output uses pulse-width modulation (PWM) to regulate current, with a maximum solenoid current of 1.6 A.

The amplifier has four demand-signal inputs for receiving external command signals and four command presets for selecting predefined operating levels. Its command source provides +10 VDC at 10 mA to support command-setting circuits. The current input impedance is 100 Ω, while the voltage input impedance is 47 kΩ; these values establish the electrical load presented to current- and voltage-based signal sources. Two ramp channels control the rate at which command levels increase or decrease, reducing abrupt output changes.

A ±15 VDC control-supply output provides up to 50 mA for compatible external control circuitry. The reference output supplies ±10 VDC at 5 mA, providing a reference signal for command and feedback circuits. Electrical connections use a DIN 41612 F48 edge connector, which provides the interface between the amplifier and its mounting or control assembly.