EEA-PAM-523-B-32 Vickers
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The EEA-PAM-523-B-32 is a power amplifier manufactured by Vickers as part of the EEA-PAM Power Amplifiers series. It offers a nominal supply voltage of 24 VDC and a rated power of 50 W. The amplifier has 4 demand signal inputs, supports a maximum solenoid current of 1.6 A, and features a DIN 41612 F48 edge connector type.
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Product Description:
The EEA-PAM-523-B-32 power-amplifier card is produced by Vickers and belongs to the EEA-PAM Power Amplifiers series. In industrial automation it drives proportional solenoids, converting low-level electrical commands from a PLC or other controller into controlled coil current so that hydraulic valves can follow precise pressure or position profiles.
On the input side, the module offers 4 selectable command presets and accepts four analog demand signal inputs. A command source current of 10 mA or a +10 VDC command source can be selected; current signals see 100 Ω input impedance, while voltage signals encounter 47 kΩ. Two independent ramp channels, shown here as 2, shape acceleration and deceleration to prevent hydraulic shock. The card operates from a nominal supply of 24 VDC, dissipates up to 50 W under full load, and plugs into the system backplane through a DIN 41612 F48 edge connector.
The output section uses PWM to energize the solenoid pair and can deliver a peak coil current of 1.6 A. An auxiliary control rail provides ±15 VDC at 50 mA for external conditioning circuits, while internal reference lines supply ±10 VDC at 5 mA for potentiometer scaling. By combining preset selection, ramp generation, and current-regulated PWM drive, the board translates each incoming command into repeatable hydraulic actuation without exceeding its electrical or thermal limits.
