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