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KUKA Error 1491 — LIN/PTP APPROXIMATION NOT EXECUTABLE

Error

Displayed as KSS01491 on KRC4 / KRC5 controllers

KUKA 1491 (“LIN/PTP APPROXIMATION NOT EXECUTABLE”): In the CP block, the motion distance of an axis is greater than 180ٛ. First check: Reduce the CP block.

Updated 2026-09-09 · LogrobotLM reference

Cause

In the CP block, the motion distance of an axis is greater than 180ٛ. Status change in the CP block. Software limit switch violation during motion via the "shortest path".

Effect

Stop via braking ramp. All active commands are inhibited.

Troubleshooting

Reduce the CP block. Insert an intermediate point. Acknowledge the message.

Related codes

1490COMPONENT CHECK FAULT1492CHANNEL INCOMPATIBLE WITH THE PROTOCOL1489CENTERING ERROR1493CHANNEL READY FOR PROGRAMMING CONSOLE

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 →