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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

12

Too many messages

Kuka · KRC2 KSS System Message

What does 12 mean?

Too many messages have been generated cyclically, indicating a potential system overload or rapid fault cycling. This will result in ramp-down braking and inhibit all active commands.

Common Causes

  • The system has received an excessive number of messages.
  • Message buffer overflow due to high message traffic.
  • Potential denial-of-service attack or rapid, unintended message generation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Perform a warm start of the ACR system.

Browse all codes in this manual (36)
Verified technical data. Last updated: April 2026

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Source: Kuka KRC2 KSS System Message
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