AD71 to QD75 Positioning Module Replacement Technical Bulletin

This technical bulletin provides detailed instructions for replacing the AD71/A1SD71/AD71S2/AD71S7 positioning module with the QD75P1N/QD75P2N/QD75P4N/QD75D1N/QD75D2N/QD75D4N, including specification comparisons, rewiring, parameter settings, and programming considerations. It covers functional differences, improved performance features such as reduced start processing time and flash ROM data storage, and lists compatible models and necessary equipment for the replacement.