Rockwell Automation Publication 2198-UM002E-EN-P - February 2018
257
Kinetix 5700 Safe Torque-off Function
Chapter 9
Safe Torque-off Wiring Requirements
The safe torque-off (STO) connector uses spring tension to secure the wire.
Depress the numbered tab along side each pin to insert or release each wire.
Two rows of pins are provided for drive-to-drive connections. Wire must be
copper with 75 °C (167 °F) minimum rating.
Figure 110 - Safe Torque-off (STO) Terminal Plug
Table 133 - Safe Torque-off (STO) Connector Plug Wiring
IMPORTANT
The National Electrical Code and local electrical codes take precedence over
the values and methods provided.
IMPORTANT
Stranded wires must terminate with ferrules to prevent short circuits, per
table D7 of ISO 13849.
SB+/NC
S1A
SCA
S2A
SB-
S1B
SCB
S2B
SB+/NC
S1
SC
S2
SB-
NC
NC
NC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Kinetix 5700 Inverter, Top View
(2198-D
xxx
-ERS3 dual-axis
inverter is shown)
2198-D
xxx
-ERS
x
Dual-axis Inverter
Safety (STO) Connector Plug
2198-S
xxx
-ERS
x
Single-axis Inverter
Safety (STO) Connector Plug
Safe Torque-off
(STO) Connector
Signal
Recommended Wire Size
mm
2
(AWG)
Strip Length
mm (in.)
Torque Value
N•m (lb•in)
STO Pin
2198-D
xxx
-ERS
x
2198-S
xxx
-ERS
x
1
SB+
SB+
0.14…1.5
(26…16)
10 (0.39)
N/A
(1)
2
3
4
5
6
7
8
10
11
12
13
14
15
16
S1A
SCA
S2A
SB-
S1B
SCB
S2B
S1
SC
S2
SB-
NC
NC
NC
9
NC
NC
(1) This connector uses spring tension to hold wires in place.