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KUKA Error 1523 — INCORRECT EXTP/EXTFCTP AGREEMENT

Error

Displayed as KSS01523 on KRC4 / KRC5 controllers

KUKA 1523 (“INCORRECT EXTP/EXTFCTP AGREEMENT”): An EXTP or EXTFCTP command was used in the program. First check: Delete the EXTP or EXTFCTP command from the program.

Updated 2026-09-09 · LogrobotLM reference

Cause

An EXTP or EXTFCTP command was used in the program.

Effect

Stop via braking ramp. All active commands are inhibited.

Troubleshooting

Delete the EXTP or EXTFCTP command from the program.

Related codes

1522SELECTED AXIS CANNOT BE CALIBRATED1521SEGMENT CHANGE ERROR1520WIRE BREAK MONITORING OF THE ACTUAL VOLUME VALUE1519WIRE BREAK MONITORING OF THE PRESSURE SENSOR

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 →