Reference Manual

22 Rockwell Automation Publication GMC-RM002F-EN-P - June 2013
Chapter 3 Wiring Your Kinetix Safe Torque-off Drive
Safe Torque-off Wiring
Requirements
These are the safe torque-off (STO) wiring requirements. Wire should be copper
with 75 °C (167 °F) minimum rating.
Table 7 - Safe Torque-off (STO) Connector
Refer to Appendix B beginning on page 31 for Kinetix 6000 and Kinetix 7000
interconnect diagrams with other Allen-Bradley safety products.
IMPORTANT
The National Electrical Code and local electrical codes take precedence over the
values and methods provided.
Safe Torque-off (STO) Connector Recommended Wire Size Strip Length
mm (in.)
Torque Value
N•m (lb•in)
Pin Signal Stranded Wire
with Ferrule
mm
2
(AWG)
Solid Wire
mm
2
(AWG)
STO-1
STO-2
STO-3
STO-4
STO-5
STO-6
STO-7
STO-8
STO-9
FDBK2+
FDBK2-
FDBK1+
FDBK1-
SAFETY ENABLE2+
SAFETY ENABLE-
SAFETY ENABLE1+
24V +
24V_COM
0.75 (18) 1.5 (16) 7.0 (0.275) 0.235 (2.0)
IMPORTANT
Pins STO-8 (internal 24V+ supply) and STO-9 (24V_COM) are used only by the
motion-allowed jumper to defeat the safe torque-off function. When the safe
torque-off function is in operation, the 24V supply must come from an external
source.
IMPORTANT
To be sure of system performance, run wires and cables in the wireways as
established in the user manual for your drive.
Refer to Additional Resources
on page 8 for the appropriate publication.