Shared Emergency Stop - MIR MIR250 User Manual

9. Safety system
Signal when driving Signal when stopped
Figure 9.7. When the robot is driving, the safety PLC sends a 0 V signal to the top module through the Auxiliary
safety function interface. When the robot is stopped, the signal becomes 24 V.
Pins 5 in interfaces A and B of the Auxiliary safety functions are used for the Locomotion
function.

9.8 Shared emergency stop

The Shared emergency stop interface is used to control the Emergency stop state between
the robot and a top module. The interface has two inputs for bringing the robot into
Emergency stop and two outputs for signaling when the robot is in Emergency stop.
The outputs are used to signal to the top module that the robot is in Emergency stop. When
the robot is in an operational state, the outputs deliver 24 V. As soon as the robot enters
Emergency stop, they deliver 0 V.
The inputs are used to enable the top module to bring the robot into Emergency stop. When
both inputs deliver 24 V, the robot can operate, but as soon as either or both of the inputs
deliver 0 V, the robot enters Emergency stop.
These signals can be used if the top module has its own Emergency stop system and you
want both the robot and the top module to enter Emergency stop when either system is
triggered.
MiR250 User Guide (en) 07/2020 - v.1.2 ©Copyright 2020: Mobile Industrial Robots A/S. 95