KUKA Error 1377 — COMMAND EXECUTION IMPOSSIBLE
Displayed as KSS01377 on KRC4 / KRC5 controllers
KUKA 1377 (“COMMAND EXECUTION IMPOSSIBLE”): A previous command is still being processed. First check: Abort the command.
Updated 2026-09-09 · LogrobotLM reference
Cause
A previous command is still being processed.
Effect
The command is not executed.
Troubleshooting
Abort the command. Wait until the previous command is finished.
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 →