SMC VEA250 2TP-3AI7I Proportional Valve Power Amplifier

SMC's E-P Proportional Valve Power Amplifier VEA250 2TP-3AI7I is a dedicated drive unit for electro-pneumatic proportional valves, built on the VEA250 platform and designed to be powered from a 24 VDC supply. It accepts a low-current command signal and delivers a stable drive with a high dither effect to improve valve response and control precision. A malfunction-detection circuit monitors for short circuits or power-supply interruptions and signals status to external controllers via a photo-coupled insulation output, enabling interlock or immediate system shutdown when faults are detected. Inputs may come from an external command signal or a potentiometer, providing flexible integration with PLCs, robots, or test rigs. The 2TP-3AI7I suffix identifies the specific terminal/port configuration within the VEA250 family, which itself is part of SMC's line of power amplifiers for electro-pneumatic proportional valves (VEA251, VEA252 and related variants).