Product Description:

The EEA-PAM-561-C-33 is a plug-in power amplifier card in the EEA-PAM Power Amplifiers series manufactured by Vickers for closed-loop control of proportional solenoid valves used in presses, injection machines, and other hydraulic actuators. It translates low-level command voltages from a PLC into a regulated drive current, provides adjustable ramps, and supervises supply conditions so that motion starts and stops smoothly while protecting the valve coils from over-current events.

The module is designed to run from a nominal supply of 24 V DC and draws up to 50 W, allowing it to energize two-stage valves without external boosters. Incoming DC must remain within a ripple of 10% pk-pk for stable dither and spool positioning. Current-mode inputs are terminated on a 100 Ω resistor to match common 4–20 mA transmitters, while voltage-mode commands see a high-impedance front end of 47 kΩ so the source device is not loaded. Reverse-polarity diodes protect the card from wiring mistakes, and internal filtering attenuates switching noise that could modulate the hydraulic pressure signal.

If the supply collapses to 18 V DC the board initiates a controlled shutdown to prevent partial valve actuation; normal operation is re-enabled once the control line exceeds 9.8 V. Adjustable ramp generators span from a swift 50 ms up to 5 s, giving machine builders freedom to tune acceleration for delicate or high-inertia loads. The permissible input range of 20–40 V DC widens installation options, and built-in crowbar circuits guard against inductive kickback when the solenoid is de-energized.

Wake Industrial can arrange same-day shipping for urgent requirements, and quotes issued for this amplifier remain valid for 30 days. Operators who need clarification on fault codes or pin assignments may use the free chat tool for general questions.