LogrobotLM

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KUKA Error 1581 — TECHMODE NOT ALLOWED

Error

Displayed as KSS01581 on KRC4 / KRC5 controllers

KUKA 1581 (“TECHMODE NOT ALLOWED”): The "CYCLE" mode has been programmed for the technology class "VEL". First check: Correct the program.

Updated 2026-09-09 · LogrobotLM reference

Cause

The "CYCLE" mode has been programmed for the technology class "VEL". The check is performed in the interpreter when "CLASS" or "MODE" is modified.

Effect

Stop via braking ramp. All active commands are inhibited.

Troubleshooting

Correct the program.

Related codes

1582KINEMATIC ASSIGNMENT NOT ALLOWED1579APS SYSTEM ERROR1583<SER_1> BLOCK LENGTH ERROR1576BASE CHANGE NOT ALLOWED

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 →