Emerson FM-3 - Manual (Page 228)

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FM-3 Programming Module Reference Manual
Tuning Procedure
Once the initial setup has been completed, you can run the system to determine if the level of
tuning is adequate for the application. There are basically four levels of tuning for a drive.
• No Tuning
• Basic Level
• Intermediate Level
• Fully Optimized Level
Each level is slightly more involved than the previous one requiring you to enter more
information. If your system needs optimization, we recommend that you start with the Basic
Level, then determine if further tuning is needed based on axis performance.
The setup procedures explained here assume that you are using PowerTools FM-3 software
or an FM-P.
Initial settings
Set the drive tuning parameters as follows:
• Inertia Ratio = 0
• Friction = 0
• Response = 50
• High Performance Gains = Enabled
• Feedforwards = Disabled
Tuning steps
If your Inertia Ratio is greater than 10 times the motor inertia go directly to the Intermediate
Level tuning.
No Tuning
No tuning will be required in most applications where the load inertia is 10 times the motor
inertia or less.
Basic Level
Adjust Response to obtain the best performance.
Intermediate Level
1. Calculate or estimate the load inertia. It is always better to estimate low.
2. Disable the drive.