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KUKA Error 1591 — THE MINIMUM MUST BE SMALLER THAN THE MAXIMUM

Error

Displayed as KSS01591 on KRC4 / KRC5 controllers

KUKA 1591 (“THE MINIMUM MUST BE SMALLER THAN THE MAXIMUM”): A minimum has been declared that exceeds the maximum value. First check: Correct the value.

Updated 2026-09-09 · LogrobotLM reference

Cause

A minimum has been declared that exceeds the maximum value.

Effect

Velocity stop. All active commands are inhibited.

Troubleshooting

Correct the value.

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 →