The Allen-Bradley 1771-QDC Plastic Molding Module is a versatile process control module designed for injection molding applications, expertly overseeing injecting, clamping, and ejecting phases. Suitable for any single I/O slot within the 1771 I/O axis, this module excels with its adaptive ERC "learning" capability, offering advanced closed-loop control adaptable to numerous hydraulic configurations. Featuring 4 analog inputs and outputs, the 1771-QDC boasts a swift update time of 2 ms for scan auto-tune PID and velocity, with a backplane current of 1.2 A and a 3 A, 250 V fuse for optimal operation. Its compact dimensions of 4.5 x 12.4 x 6.3 inches and broad operating temperature range of 32-140 °F ensure reliable performance in diverse environments with humidity levels between 5% and 95% without condensation.