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Rockwell Automation Publication 2198-UM002E-EN-P - February 2018
Chapter 9
Kinetix 5700 Safe Torque-off Function
Out of Box State
Kinetix 5700 servo drives are capable of safe torque-off (STO) functionality in
Hardwired STO mode or Integrated STO mode. Out of the box, the
Kinetix 5700 servo drives are in Hardwired STO mode, which means they are
ready for hardwired connections to the safety (STO) connector. To bypass the
hardwired safety function, jumper wires must be installed in the STO
connector.
Out of the box, you can use Kinetix 5700 servo drives in Integrated STO mode
only after a Motion and Safety or Safety-only connection has been established
at least once in the Logix Designer application.
How to Recognize Hardwired STO Mode
You can read the safety control state from the axis tag AxisSafetyState, or by
using an MSG command in the Logix Designer application to read the Safety
Supervisor status.
In Hardwired STO mode, if STO inputs are OFF then Safety Supervisor state
is Not Configured (8) and if STO inputs are ON then Safety Supervisor state
is Not Configured, torque permitted (51).
Table 122 - Safety Supervisor States
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.
IMPORTANT
Out of the box, Kinetix 5700 servo drives are in Hardwired STO mode.
IMPORTANT
To bypass the STO feature while commissioning or testing the drive, the
drive must be configured for Hardwired STO mode. Refer to
for a wiring example.
Value
Safety Supervisor State
Definition
Safety Mode
2
Configured (no safety connection)
No active connections
Integrated
4
Running
Normal running state
Integrated
7
Configuring
Transition state
Integrated
8
Not Configured
Hardwired STO mode with
torque disabled
Hardwired (out of the box)
51
Not Configured (torque permitted)
Hardwired STO mode with
torque permitted
Hardwired (out of the box)
52
Running (torque permitted)
STO bypass state
Integrated