Mitsubishi Q172DLX — External signal input module (FLS - RLS - STOP - DOG/CHANGE x

The Q172DLX is an external signal input module designed specifically for use with Mitsubishi QnUD and Q3nDB programmable logic controllers (PLCs). This module provides various signal inputs, including forward limit switch (FLS), reverse limit switch (RLS), stop switch, and change over gear (DOG) inputs. Additionally, it offers eight changeover inputs.

The FLS input is used to detect when the associated equipment has reached the forward limit of its movement. Similarly, the RLS input detects when the equipment has reached the reverse limit. These inputs are crucial for ensuring safe operation and preventing any damage to the equipment or surrounding objects.

The stop switch input allows for an emergency stop functionality, enabling immediate halting of the equipment in case of any hazardous situations. This feature is essential for maintaining operator safety and preventing accidents.

The DOG input provides a means for changing gears in equipment with multiple speed settings. It allows for smooth and efficient operation by signaling to the controller when a gear change is required.

The Q172DLX module also offers eight changeover inputs, which can be utilized for various purposes depending on the application requirements.