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Rockwell Automation Publication 2198-UM002E-EN-P - February 2018
Chapter 9
Kinetix 5700 Safe Torque-off Function
Safe Torque-off Connector Data
Two rows of eight pins are provided for making drive-to-drive connections.
The dual-axis inverters have pins designated for axis A and axis B. The single-
axis inverters do not use STO-6, -7, -8 and STO-14, -15, -16.
Figure 107 - Pin Orientation for 16-pin Safe Torque-off (STO) Connector
Table 132 - Safe Torque-off Connector Pinouts
SB+/NC
S1A
SCA
S2A
SB-
S1B
SCB
S2B
1
2
12
3
4
5
6
7
8
9
10
11
13
14
15
16
1
2
12
3
4
5
6
7
8
9
10
11
13
14
15
16
SB+/NC
S1A
SCA
S2A
SB-
N/C
N/C
N/C
2198-D
xxx
-ERS
x
Dual-axis Inverter
Safety (STO) Connector Plug
2198-S
xxx
-ERS
x
Single-axis Inverter
Safety (STO) Connector Plug
STO Pin
Description
2198-D
xxx
-ERS
x
Description
2198-S
xxx
-ERS
x
Signal
1
Safety bypass plus signal. Connect to both safety inputs to disable safe torque-off
function.
SB+
2
10
Safe stop input channel 1, axis A.
S1A
3
11
Safe stop input common, axis A.
SCA
4
12
Safe stop input channel 2, axis A.
S2A
5
13
Safety bypass minus signal. Connect to safety common to disable safe torque-off
function.
SB-
6
14
Safe stop input channel 1, axis B.
N/C
S1B
7
15
Safe stop input common, axis B.
N/C
SCB
8
16
Safe stop input channel 2, axis B.
N/C
S2B
9
N/C
N/C
–
IMPORTANT
STO-3 and STO-7 is common for the digital inputs, the safety inputs, and
the encoder power supply (optional).