Product Description:

The EEA-PAM-561-D-32 is a plug-in power amplifier card produced by Vickers for the EEA-PAM Power Amplifiers series. Installed in hydraulic or motion-control racks, it converts low-level command signals into proportional drive currents that regulate valves and actuators in automated machinery. By fitting into a Eurocard cage together with related control electronics, the card simplifies closed-loop pressure or position regulation tasks performed by industrial PLCs.

The module operates from a supply of 24 VDC and generates an internal reference of +15 VDC for external potentiometers or transducers. Command current input sees 100 Ω while the parallel command-voltage port presents 47 kΩ, allowing direct connection to PLC analog outputs. Alarm circuitry is brought out through a 50 Ω open-collector path that can drive status lamps or logic inputs. The card reproduces the input profile on its analog monitor jack within an output span of ±10 V and drives feedback devices that are at least 10 kΩ. A ramp generator sharing the same ±10 V window smooths step commands; its output can feed loads down to 5 kΩ, and the matching ramp input impedance is 10 kΩ to prevent upstream loading.

An industry-standard DIN 41612 F48 (Male) connector delivers all I/O pins, ensuring quick card replacement during maintenance. Mechanical dimensions follow the Eurocard envelope of 128.4 x 100 x 175.24 mm, so the board aligns with 3U sub-racks and guided module rails. Field test points are buffered through 10 kΩ monitor impedance to safeguard internal nodes, while the sensor feedback port is isolated by 1 MΩ to accommodate high-resistance transducers without affecting accuracy. For motion profiles that require gradual actuation, the onboard ramp stage supports external loads down to 5 kΩ, enabling predictable acceleration of hydraulic cylinders and proportional valves.