LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

KUKA Error 1594 — TECH--MAX VALUE EXCEEDED

Error

Displayed as KSS01594 on KRC4 / KRC5 controllers

KUKA 1594 (“TECH--MAX VALUE EXCEEDED”): The programmed function generator number is greater than the maximum number of function generators specified in the robot-specific machine data (TECH_MAX). First check: Correct the program.

Updated 2026-09-09 · LogrobotLM reference

Cause

The programmed function generator number is greater than the maximum number of function generators specified in the robot-specific machine data (TECH_MAX).

Effect

Stop via braking ramp. All active commands are inhibited.

Troubleshooting

Correct the program.

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 →