Rockwell Automation Publication 2198-UM004D-EN-P - December 2022 417
Chapter 13 Kinetix 5100 Safe Torque Off (STO) Feature
Safe Torque Off Feature Bypass
The 2198-Exxxx-ERS drives do not operate without a safety circuit or safety
bypass wiring. For applications that do not require the Safe Torque Off (STO)
feature you must install jumper wires (included with the drive) to bypass the
safe torque-off circuitry.
Each 2198-Exxxx-ERS drive includes one 8-pin wiring plug for wiring to safety
devices. Jumper wires are installed by default to bypass the safety function, as
shown in Figure 226
. With the jumper wires installed, the Safe Torque Off
feature is not used.
Figure 226 - Safe Torque Off Bypass Wiring
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 circuit. Refer to Table 130
for
current rating per channel, per drive.
Figure 227 - Cascaded Safe Torque Off Wiring
ATTENTION: Personnel responsible for the application of safety-related
programmable electronic systems (PES) shall be aware of the safety
requirements in the application of the system and shall be trained in using
the system.
SB+
S1
S2
SS+
SB–
S1C
S2C
SS–
24V DC
SB+
S1
S2
SS+
SB–
S1C
S2C
SS–
SB+
S1
S2
SS+
SB–
S1C
S2C
SS–
SB+
S1
S2
SS+
SB–
S1C
S2C
SS–
First Drive
Middle Drive
Last Drive
Dual-channel
Equivalent
Safety Device
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