The Allen-Bradley 1771-QDC is a specialized Plastic Molding Module developed for use within PLC-5 systems. Designed for applications requiring precision control, the 1771-QDC features four analog inputs and four analog outputs to interface with molding equipment. It offers automatic tuning of PID and velocity control with a fast 2 ms scan update period, ensuring consistent process performance. Drawing 1.2 Amps from the 5V backplane and occupying a single slot, this module is ideal for high-precision industrial molding operations. The 1771-QDC pairs with the 1771-WF wiring arm for convenient and reliable field wiring. Manufacturer Rockwell Automation Brand Allen-Bradley Part Number 1771-QDC Product Type Plastic Molding Module Module Type Analog Control Analog Inputs 4 Analog Outputs 4 Input Frequency N/A Update Rate 2 ms Scan with Auto-Tune PID and Velocity Backplane Current 1.2 Amperes @ 5V DC Module Slots Required 1 Wiring Arm 1771-WF System Compatibility 1771 Series / PLC-5 Systems Status Discontinued / Legacy Support
