Mitsubishi Electric MDS-E Series Instruction Manual page 135

MDS-E/EH Series Instruction Manual
3 Safety Function
Safe Torque Off function is a shutoff function which does not provide the energy to the motor capable of generating
torque and it shuts off an energy supply electronically inside the drive unit.
STO function can be used in the following two ways ((1) and (2) below).
(1) Network STO function
[1] System configuration and wiring
STO function shuts off the motor power of all axes or the designated axis in the system.
Warning A4 (sub-number 0001) is detected while STO function is shutting off the motor power.
< A system configuration example when using network STO function >
CAUTION
This function is set with the NC. Refer to the smart safety observation function for details of the setup and control method.
IB-1501229-F
Safety I/O unit NC
Emergency
stop input
104
Power supply
Drive unit
unit
Optical
communication
STO start via
optical
communication
Power shutoff