313 PLC Fault Codes in One AI Database — Free to Query

Every Maintenance Tech's Nightmare

You're standing in front of a faulted VFD at 2 AM. The display shows "F013." You know it's an output phase loss, but you can't remember if you should check the motor cables first or the drive output terminals.

The manual is in the office. Google gives you forum posts from 2014. The vendor's tech support line closes at 5 PM.

What If You Could Just Ask?

I built IndAutomation — an AI fault diagnosis tool with 313 fault codes across 5 major manufacturers:

• Allen-Bradley (PowerFlex 525, 755, CompactLogix, ControlLogix)
• Siemens (S7-1200, S7-1500, SINAMICS)
• ABB (ACS580, ACS880)
• Mitsubishi (FR-E800, iQ-R)
• Fanuc (Series 30i, 0i-TF)

For each fault code you get:

1. What it means (not just the manual description)
2. Probable causes ranked by real-world frequency
3. Step-by-step fix procedure
4. The field trick — the thing you learn after doing this job for 10 years

Try It Right Now

Go to indautomation.onrender.com and type any fault code. No account needed.

Test codes to try:

• F002 — PowerFlex overcurrent (the loose connection trick)
• F013 — Output phase loss (check cables before swapping the drive)
• A081 — Motor overtemp (it's probably a clogged filter, not a bad motor)

You can also describe symptoms: "drive trips on startup" or "servo alarm during homing."

For Developers: MCP Integration

IndAutomation is also an MCP server with 8 tools. If you use Claude Code, you can add it as a tool:

{
  "mcpServers": {
    "indautomation": {
      "command": "npx",
      "args": ["-y", "indautomation-mcp"]
    }
  }
}

Then Claude can diagnose faults directly in your terminal while you're debugging PLC code.

Pricing

• Free: 5 lookups/day
• Pro ($19/mo): Unlimited + photo analysis (snap a fault screen)
• Enterprise ($49/mo): API access + team accounts

Built by a maintenance tech who got tired of Googling fault codes at 2 AM.

indautomation.onrender.com