16 P2552HW | 2021-04 Apex Tool Group
1
EN
9 STO safety function
9.1 Definition
The STO safety function enables the controller mPro300GCD-STO to provide a reliable solution for switching off the
energy supply at the output of the built-in nutrunner.
If several mPro300GCD-STO units are wired in series with STO connector cables, the STO function is guaranteed for the
complete group.
STO = Safe Torque Off. For the currently observed standards, please refer to 4Technical Specifications.
9.2 Performance features
• Reaching the STO safety function
• Potential-free feedback contact for the operating status.
Warning
Risk of electric shock
The STO safety function only provides protection against dangerous movements, not against electric
shock.
Always comply with the stipulations of the documentation, in particular 2 Safety, Page 6.
Comply with the documentation for the other components.
Ensure protection against the built-in nutrunner automatically restarting according to the required safe-
ty category of emergency stop applications, e.g. via an external safety relay.
STMD-H
672 $
672 %
9'&
9'&
,&
,&
,&
,&
w&
5(/
5(/
50 672$ 21
50 672% 21
24V 0V
1Pin 2 4 5 6 8 7 3 4Pin 5 6 8 7 3
Connection to the previous controller
or to a safety relay
STO cable to the next
controller
Termination connector
STO connection flange
X41 IN
Connection
XS4
Auxiliary power
supply
24 V
Galvanic
separation
Power supply
Gate driver
OS + US
Activation of the
level converter for
gate signals
STO connection flange
X42 OUT
or
To Next Page
Loading...
