Hey there! I totally get that 2 AM panic when the production line goes down and you're staring at a mysterious servo motor fault code with no OEM support available. Here's my go-to emergency recovery protocol that I'd follow in your shoes:

1. **Stay calm and document everything** - First, take a deep breath and snap photos of the fault code, servo drive display, and any error messages on the HMI. Write down the exact time and sequence of events.

2. **Safety first** - Lock out/tag out the equipment, then perform a complete power cycle. Turn off the main breaker, wait 2-3 minutes for capacitors to discharge, then power back up. Sometimes this clears transient faults.

3. **Check the basics** - Verify power supply to the servo drive, inspect all wiring connections (especially encoder cables), and look for any obvious physical damage or overheating signs.

4. **Decode the fault** - Use the servo drive manual (digital copy if you have it) to look up the specific fault code. Common ones like F70 overcurrent errors often point to mechanical binding or overload conditions.

5. **Mechanical inspection** - Manually rotate the motor shaft to check for binding. Look at the connected machinery for jams, misalignment, or worn components that could be causing excessive load.

6. **Parameter check** - If you have access to the drive parameters, verify they match your backup or standard settings. Sometimes parameter corruption can cause mysterious faults.

7. **Isolate and test** - If possible, disconnect the motor from the load and test it separately. This helps determine if it's a motor/drive issue or a mechanical problem.

8. **Emergency bypass options** - Check if there's a manual mode or maintenance override that could get you running temporarily while you order replacement parts.

9. **Document your findings** - Keep detailed notes of everything you tried, what worked, what didn't. This will be crucial for the morning shift and future troubleshooting.

Remember, the key is systematic troubleshooting - don't jump to conclusions. Start simple, work your way through the possibilities, and always prioritize safety. Got any specific fault code you're dealing with? I might be able to give more targeted advice!