Product Description:

The EEA-PAM-568-A-33 is a plug-in power amplifier card from Vickers and belongs to the EEA-PAM Power Amplifiers series. Installed in a DIN 41612 rack, the card interfaces with hydraulic or electromechanical actuators by converting external command signals into controlled output power for industrial automation tasks that require regulated drive or valve operation.

This module is energized from a nominal bus of 24 VDC and remains functional between 40 VDC and 20 VDC, allowing it to tolerate supply variation common in mobile or plant power networks. The electronics can deliver up to 50 W of continuous output, matching the thermal design envelope of the board, which itself weighs only 330 g. These electrical and physical parameters define how densely the amplifier can be packed in a control cabinet and how much auxiliary cooling is required when multiple cards share the same backplane.

Signal conditioning is handled through a current input stage that presents an impedance of 100 Ω and through a voltage input path rated at 47 kΩ; both paths accept bipolar commands, enabling either ±20 mA or ±10 V control schemes without loading the source excessively. A programmable soft-start circuit shapes actuator response with ramp times from 50 ms to 5 s, preventing pressure shocks or mechanical overshoot when setpoints change quickly. Operating limits are further supported by an ambient temperature window of 0 °C to 50 °C, ensuring dependable behavior in typical shop-floor enclosures while the DIN 41612 F48 male connector maintains consistent signal integrity across repeated insertions.