Product Description:

Vickers manufactures the EEA-PAM-533-E-32 board for the EEA-PAM Power Amplifiers series. The card plugs into a valve controller rack and translates low-level command or feedback signals into drive power for proportional or servo-grade hydraulic actuators that form part of closed-loop industrial automation systems.

The module is energized from a nominal supply of 24 VDC and draws up to 50 W, so panel designers must reserve that amount of DC bus capacity. If the bus drops below the shut-down threshold of <18 VDC, the amplifier disables its outputs to protect connected coils. Depth is 175.24 mm and height is 128.4 mm, dimensions that match a standard Eurocard frame that uses a DIN 41612 F48 male connector for power and signal terminations. Internally, the card delivers a regulated +15 V reference for an LVDT position transducer, accepts sensor currents up to 20 mA through a 100 Ω input path, and tolerates sensor voltages as high as 24 V. These input limits shape the interface so external conditioning is unnecessary and wiring remains straightforward.

The amplifier functions within an ambient maximum of 50 °C and remains serviceable down to 0 °C, while long-term storage is permissible up to 85 °C without performance degradation. A dedicated monitor point, buffered by 10 kΩ of output resistance, lets technicians scope real-time valve command levels without disturbing the loop. During fault detection the card sources an alarm current that is limited to 50 mA; when a transducer signal exceeds calibrated bounds it can escalate to an out-of-range current of 100 mA that trips supervisory inputs. Together these limits, along with the sensor and supply thresholds, define predictable behavior under overload, loss of supply, or thermal stress.