42/76 Mounting
Bosch Rexroth AG
, CytroPac, RE 51055-B/02.2021
7.5.7 Additional port Safe Torque Off (STO) 22X1 (optional)
The optional function “Safe Torque Off” may be used, if the unit has to be
disconnected from the mains in order to prevent undesired starting up. With this
function, the power supply to the motor can be safely interrupted. In this case the
drive cannot generate any force and, as a consequence, it cannot generate any
dangerous motions, either.
This safety function corresponds to stop category 0 according to IEC 602041.
Also observe operating instructions R912005854 for frequency converter series EFC
x610.
22X1
Fig. 25: Port 22X1 STO
Table 6: 22X1 - Safe Torque Off (STO)
Pin
Function
(Connector)
M12x1; 8-pin,
A-coded
1
Not used (NC)
2
STO 1 +
3
STO 1 -
4
STO 2 +
5
STO 2 -
6
Not used (NC)
7
Not used (NC)
8
Not used (NC)