EEA-PAM-525-A-32

EEA-PAM-525-A-32 is a Vickers power amplifier in the EEA-PAM Power Amplifiers series. It operates at a nominal supply voltage of 24 VDC, with a permitted supply range from 20 VDC minimum to 40 VDC maximum. The amplifier requires 50 W of supply power. Its control supply provides a ±15 VDC output with a control supply current of 50 mA for compatible control circuitry.

The voltage command range is ±10 V, and the voltage input impedance is 47 kΩ to limit loading on the voltage command source. The current command range is ±20 mA, with a current input impedance of 100 Ω for current-based control signals. The maximum solenoid current is 2.7 A, allowing the amplifier to drive a compatible proportional valve solenoid. At a 0 V command, the drive current is 0.3 A.

The factory gain setting is 10% per volt, which determines the change in commanded valve stroke for each volt of input. The factory deadband setting is 15% of stroke to account for the valve’s nonresponsive region around neutral. Without an LVDT, the MP2 monitor scale is 1 V/A, allowing solenoid current to be monitored as a proportional voltage signal. The amplifier has a mass of 330 g.