
Rockwell Automation Publication 2198-UM002E-EN-P - February 2018
263
Kinetix 5700 Safe Torque-off Function
Chapter 9
Safe Torque-off Assembly Tags
In Integrated safe torque-off (STO) mode, a GuardLogix 5570 or Compact
GuardLogix 5370 safety controller controls the Kinetix 5700 safe torque-off
function through the SO.SafeTorqueOff tag in the safety output assembly.
The SO.Command tags are sent from the GuardLogix safety output assembly
to the Kinetix 5700 safety output assembly to control the safe torque-off
function.
The SI.Status tags are sent from the Kinetix 5700 inverter to the GuardLogix
safety input assembly and indicate the Kinetix 5700 safety control status.
The SI.ConnectionStatus tags indicate the safety input connection status.
and
list the safety tags added to the controller tags when a
Kinetix 5700 servo drive is added to a GuardLogix I/O configuration and the
connection is configured for Motion and Safety or Safety-only.
The attribute values listed are the Assembly Object attribute values.
Table 137 - Single-axis Inverter Integrated STO Specifications
Logix Designer Tag Name
Attribute
[bit]
Type
Description
SI.ConnectionStatus
(1)
(2)
(1) Bits not listed are always zero.
(2) ConnectionStatus is determined by the Safety Validator in the GuardLogix controller.
DINT
SI.RunMode
[0]
BOOL
Combinations of the RunMode and
ConnectionFaulted states
SI.ConnectionFault
[1]
BOOL
SI.Status
(3)
(3) Status is sent from the drive to the controller using integrated safety protocol.
0x1A0
SINT
SI.TorqueDisabled
[0]
BOOL
0 = Torque Permitted
1 = Torque Disabled
SI.SafetyFault
[6]
BOOL
1 = STO fault present
SI.ResetRequired
[7]
BOOL
1 = Reset is required
SO.Command
(4)
(4) Commands are sent from the controller to the drive using integrated safety protocol.
0x180
SINT
SO.SafeTorqueOff
[0]
BOOL
0 = Disable Permit
1 = Permit Torque
SO.Reset
[7]
BOOL
0 --> 1 = Reset STO fault
IMPORTANT
Only the data listed in
is safety data with SIL 3 integrity.