Allen-Bradley GuardLogix 5580 Original Instructions Manual page 72

Appendix A Safety Instructions
Table 9 - Drive Safety Instructions
Mnemonic Name
SS1 Safe Stop 1
SS2 Safe Stop 2
SOS Safe Operating Stop
SLS Safely-limited Speed
SLP Safe Limited Position
SDI Safe Direction
SBC Safe Brake Control
SFX Safe Feedback Scaling
(1) Motion safety instructions are available when using a GuardLogix 5580 controller, Compact GuardLogix 5380, and Kinetix 5700 ERS4 drives with the Studio 5000 Logix Designer application (V31
or later).
72
(1)
Purpose
The Safe Stop 1 instruction monitors the deceleration of an axis according to the specified velocity ramp to zero speed and controls
its output (O1) to initiate Safe Torque Off (STO).
The Safe Stop 2 instruction initiates and monitors the motor deceleration within set limits to verify that the motor is brought to an
operational stop. Once stopped, SS2 continues to monitor the operational stop of the motor.
The Safe Operating Stop instruction monitors the speed or position of a motor or axis to verify that the deviation from standstill
speed or position is not more than a defined amount.
The Safely-limited Speed instruction monitors the speed of an axis and sets the SLS Limit output if the speed exceeds the Active
Limit input value for the instruction.
The Safely-limited Position instruction monitors the position of a motor or axis to verify that the position does not deviate above or
below defined limits.
The Safe Direction instruction monitors position of a motor or axis to detect movement of more than a defined amount in the
unintended direction.
The Safe Brake Control (SBC) instruction:
• Controls safety outputs that actuate a brake.
• Sets timing between brake and Torque Off Request outputs.
• Monitors brake feedback and I/O status.
The Safety Feedback Interface instruction converts motor velocity and position feedback from a drive module into user scaling units.
It also defines an absolute reference position.
IMPORTANT If you use Motion Direct Commands with a Kinetix 5500 drive, Kinetix 5700
See the following publications for more information.
Table 10 - Additional Resources
Resource
GuardLogix Safety Application Instruction Set
Reference Manual, publication
Logix5000 Controllers Generals Instructions
Reference Manual, publication
Rockwell Automation Publication 1756-RM012B-EN-P - April 2018
servo drive, or a PowerFlex 527 drive, see the user manual for the drive for
information on how to use this feature in safety applications.
• Kinetix 5500 Servo Drives User Manual, publication
• Kinetix 5700 Servo Drives User Manual, publication
• PowerFlex 527 Adjustable Frequency AC Drive User Manual,
publication 520-UM002
Description
Provides more information on the safety application
1756-RM095 instructions.
Provides information on the Logix5000 instruction set that
1756-RM003 includes general, motion, and process instructions.
2198-UM001
2198-UM002