STOP 1
Safety Stop 1
Kuka · Industrial Robots Use & Programming
What does STOP 1 mean?
A Safety STOP 1 has been triggered and monitored by the safety controller. In this stop, the non-safety-oriented part of the robot controller performs a controlled braking process. Once the manipulator reaches a standstill, the safety controller then switches off the drives and applies the brakes.
Common Causes
- Loss of operator safety signal, such as an opened safety fence monitoring switch in AUT mode.
- Release of an enabling switch on the KCP (when in T1 or T2 mode).
- Activation of an external safety stop signal (e.g., from an external EMERGENCY STOP device).
- Robot exceeding monitored velocity in T1 mode.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify all safety fence monitoring switches are closed and interlocks are engaged.
- 2
Ensure the enabling switch on the KCP is held in the center position.
- 3
Acknowledge any outstanding safety messages in the smartPAD message window.
- 4
Re-enable robot drives through the appropriate controller interface.
Verified technical data. Last updated: March 2026
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Source: Kuka Industrial Robots Use & Programming