n Operate the Servomotor to measure the load moment of inertia of the
machine in comparison with the rotor moment of inertia.
n Set the operation mode, reference pattern (maximum acceleration rate,
maximum speed, and maximum travel distance), and speed loop-related
parameters.
n Correct measurement of the moment of inertia ratio may not be possible
depending on the settings. Set suitable settings using the measurement
results as reference.
5 - Reference Selection Area
Either select the reference pattern for estimation processing from the box, or set
the values in the Detailed Setting Group. Generally speaking, the larger the
maximum acceleration rate is, the more accurate the moment of inertia estima-
tion will be.
Set the maximum acceleration range within the possible range of movement
considering the gear ratio, e.g., the pulley diameters or ball screw pitch.
6 - Confirm Button
Click this button to display the Reference Confirmation Dialog Box.
Fig. 229: Tuning - Reference Transmission Dialog Box, 1, en_GBTuning - Reference Con-
firmation Dialog Box
7 - Detailed Setting Area
You can change the settings by moving the bars or directly inputting the settings
to create the required reference pattern.
8 - Next Button
Click this button to display the Reference Transmission Dialog Box.
9 - Cancel Button
Click this button to return to the Tuning Dialog Box.
Sigma-7 Series SERVOPACKs
Tuning
Estimating the Moment of Inertia > Operating Procedure
| | PROFINET Communications - SIEP YEUOC7P 02A Revision 0 | en | 314
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