Hey there! As someone just getting into automation, you're asking exactly the right question. Choosing servo motors for high-speed packaging lines can be tricky, but avoiding these three critical mistakes will save you tons of headaches:

1. **Ignoring inertia mismatch** - This is the #1 mistake. Engineers often pick motors without considering the inertia ratio between the motor and the load. For high-speed packaging lines, you want an inertia ratio of 10:1 or lower (load inertia to motor inertia). Higher ratios make the motor work too hard, causing instability, poor control, and overheating. Always calculate your load inertia first, then choose a motor with appropriate inertia matching.

2. **Underestimating torque requirements at high speeds** - Many engineers look at peak torque but forget that servo motors lose torque as speed increases. For packaging lines running at 1,000+ RPM, you need to check the motor's torque-speed curve to ensure it delivers enough torque at your operating speed. Don't just look at the rated torque - verify it works at your actual speed requirements.

3. **Skipping proper tuning and testing** - Even experienced engineers make this mistake. They install motors without proper current loop tuning or testing them disconnected first. Always disconnect the motor from your mechanical system initially, tune it properly, and test it running solo. This prevents damaging your entire packaging line if there's a configuration error.

From day one: Calculate inertia ratios, study torque-speed curves thoroughly, and never skip the tuning/testing phase. These steps will give you stable, reliable performance on your packaging lines!