Product Description:

The EEA-PAM-535-B-32EN9 is a plug-in power amplifier card manufactured by Vickers for the EEA-PAM Power Amplifiers series. It interfaces between the machine controller and a proportional valve, shaping voltage or current commands into controlled coil excitation so hydraulic actuators follow reference profiles with repeatable accuracy. The card occupies a standard Eurocard slot, bringing signal conditioning, LVDT feedback excitation, and protective circuitry onto one board to streamline panel layout in industrial presses, molding machines, and test stands.

The amplifier accepts differential voltage orders within a span of ±10 V or differential current commands up to ±20 mA, so it can link directly to PLC analog modules without converters. A high input impedance of 47 kΩ on the voltage channel minimizes loading, while the current channel presents only 100 Ω, allowing precise loop control when using 4–20 mA transmitters. On-board electronics supply the valve’s LVDT with +15 V at up to 50 mA, and internal jumpers let technicians select either the external command lines or the built-in ±10 V source for setup tasks.

The power stage is energized from a nominal bus of 24 V DC and is rated to draw up to 50 W, giving ample overhead for fast spool actuation without overheating. Undervoltage protection disconnects the output when the supply falls to 18 V DC, preventing partial coil energization that might stick the valve. Thermal limits are aligned with enclosure ratings; the board operates from 0 °C to a maximum of 50 °C, ensuring stable drift characteristics in standard control cabinets. Supply range flexibility from 20 V DC to 40 V DC makes the unit tolerant of plant power variations.

Wake Industrial offers a 1-year warranty on every card, can arrange same-day shipping when schedules are tight, and provides a free chat tool for questions about type codes or fault indications.