Drive Safety Instructions

Motion safety instructions are available when using a
GuardLogix®
 5580 or
Compact GuardLogix®
 5380 controller and safe speed or position inputs with the
Studio 5000 Logix Designer®
 application, version 31 or later.
IMPORTANT:
If you use motion direct commands with a
Kinetix®
 5500 drive,
Kinetix®
5700 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, publication2198-UM001
  • Kinetix 5700 Servo Drives User Manual, publication 2198-UM002
  • PowerFlex® 527 Adjustable Frequency AC Drive User Manual, publication 520-UM002
  • PowerFlex 755/755T Integrated Safety - Safe Torque Off Option Module User Manual, publication 750-UM004
  • PowerFlex 755/755T Integrated Safety Functions Option Module User Manual, publication750-UM005
Mnemonic
Name
Description
SBC
Safe Brake Control
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.
SDI
Safe Direction
The Safe Direction instruction monitors position of a motor or axis to detect movement of more than a defined amount in the unintended direction.
SFX
Safe Feedback Scaling
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.
SLP
Safe Limited Position
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.
SLS
Safely-limited Speed
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.
SOS
Safe Operating Stop
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.
SS1
Safe Stop 1
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).
SS2
Safe Stop 2
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.
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