60 Rockwell Automation Publication 2094-UM001J-EN-P - March 2017
Chapter 4 Connector Data and Feature Descriptions
Safe Torque-off Connector Pinout
Each 2094-xCxx-Mxx-S IAM module and 2094-xMxx-S AM module ships
with the (9-pin) wiring-plug header and motion-allowed jumper installed in
the safe torque-off (STO) connector. With the motion-allowed jumper
installed, the safe torque-off feature is not used.
Figure 25 - Motion-allowed Jumper
Headers in this table extend the safe torque-off (STO) connector signals for
use in wiring single and multiple safe torque-off drive configurations, or to
defeat (not use) the safe torque-off feature.
Table 24 - IAM/AM Safe Torque-off 9-pin (STO) Connector
Refer to the Kinetix Safe Torque-off Feature Safety Reference Manual,
publication GMC-RM002
, for more information on wiring safe torque-off
headers.
Motion-allowed Jumper
Wiring Plug Header
Kinetix 6000 IAM/AM Module
(AM module is shown)
Safe Torque-off
(STO) Connector
Safe Torque-off (STO)
Connector Pin
Applies to These STO Connector Headers Description Signal
1
• Wiring plug header used in single-drive
applications
• First-drive wiring header
(catalog number 2090-XNSM-W)
used in multiple-drive applications
One side of the normally-closed monitoring contact of relay 2 FDBK2+
2 Other side of the normally-closed monitoring contact of relay 2 FDBK2-
3 One side of the normally-closed monitoring contact of relay 1 FDBK1+
4 Other side of the normally-closed monitoring contact of relay 1 FDBK1-
5 Safety enable 2 input SAFETY ENABLE2+
6 Return for safety enable power (both inputs) SAFETY ENABLE-
7 Safety enable 1 input SAFETY ENABLE1+
8
• Wiring plug header
• Motion-allowed jumper
Power for continuous enable of the safety function, 500 mA max 24V+
9 Power return used for continuous enable of safety function 24V_COM
IMPORTANT Pins STO-8 and STO-9 (24V+) are used by only the motion-allowed jumper.
When wiring to the wiring-plug header, the 24V supply must come from an
external source.
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