Safe Torque-Off Feature Bypass; Cascade The Safe Torque-Off Signal - Allen-Bradley Kinetix 5700 User Manual

Safe Torque-off Feature Bypass

The Kinetix 5700 inverters do not operate without a safety circuit or safety
bypass wiring. For applications that do not require the safe torque-off feature
you must install jumper wires to bypass the safe torque-off circuitry.
Kinetix 5700 inverters ship with a 16-pin wiring plug for wiring to safety
devices. To bypass the safety function, wire these signals as shown in
Figure 149. With the jumper wires installed, the safe-off feature is not used.
Figure 149 - Safe Torque-off Bypass Wiring
2198-Dxxx-ERSx
Dual-axis Inverter
Safety (STO) Connector Plug
1
2
3
4
5
6
7
8
IMPORTANT If the safe torque-off function is not required, the drive safety

Cascade the Safe Torque-off Signal

The total number of drives in a single cascaded safety circuit is limited by the
current carrying capacity of the cascaded safety wiring. Refer to
current rating per channel, per drive.
In this example, the cascaded safe torque-off (STO) wiring is for an application
with three single-axis inverters and a single safety device.
Figure 150 - Cascaded STO Wiring - Single-axis Inverters
Dual-channel
Equivalent
Safety Device
SB+/NC
24V DC
Rockwell Automation Publication 2198-UM002G-EN-P - February 2019
SB+/NC
9
S1A
10
SCA
11
S2A
12
SB-
13
S1B
14
SCB
15
S2B
16
configuration must be returned to Hardwired STO mode and the bypass
jumper wires applied to the safety (STO) connector plugs.
First Drive
SB+/NC
1 9
S1A
2 10
SCA
3 11
S2A
4 12
SB-
5 13
N/C 6 14
N/C 7 15
N/C
8 16
Kinetix 5700 Safe Torque-off Function
2198-Sxxx-ERSx
Single-axis Inverter
Safety (STO) Connector Plug
1 9
2 10
3
11
4 12
5 13
6 14
7 15
8 16
Middle Drive
SB+/NC
1 9
S1A
S1A
2 10
SCA SCA
3 11
S2A S2A
4 12
SB-
5 13
N/C N/C
6 14
N/C
N/C
7 15
N/C N/C
8 16
Chapter 9
SB+/NC
S1A
SCA
S2A
SB-
N/C
N/C
N/C
Table 161 for
Last Drive
1 9
2 10
3 11
4 12
SB- 5
13
6 14
7 15
8 16
321