The Mitsubishi QD75D2N is a 2-axis positioning module for the Q-series PLC, using differential driver pulse outputs rated at 200kbps maximum. It holds 600 positioning data points per axis and supports 2-axis linear and circular interpolation. Backup for positioning parameters is retained internally, so recovery after a power cycle doesn't require a reload of axis data.
Key Ratings in Context
The 200 kbps pulse rate is suited for moderate-speed positioning over the 2 m differential line — fast enough for most pick-and-place or indexing axes, but not for servo drives that demand high-frequency step/direction signals above that rate. Linear and circular interpolation are handled in hardware, freeing the PLC scan from path calculation. Parameter backup means that once the positioning data is written, the module holds it without battery-dependent retentivity. That matters for lines where a configuration reload mid-shift is costly.