KUKA Error 1140 — LINE CHANGE DURING A STOP
ErrorDisplayed as KSS01140 on KRC4 / KRC5 controllers
KUKA 1140 (“LINE CHANGE DURING A STOP”): In the event of a stop via braking ramp or a path-maintaining stop during a block change, the calculation of "$POS_RET" and of the system time is not possible. First check: Modify the operation so that the stop does not coincide with the block change.
Updated 2026-09-09 · LogrobotLM reference
Cause
In the event of a stop via braking ramp or a path-maintaining stop during a block change, the calculation of "$POS_RET" and of the system time is not possible. "$POS_RET" and the system time are determined by the start of a new block.
Effect
Stop via braking ramp. Program execution stopped.
Troubleshooting
Modify the operation so that the stop does not coincide with the block change.
Related codes
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →