Emerson Epsilon EP Drive 400518-01 Manual de instalación Pagina 65

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53
Setting Up Parameters
Limits Group
Torque Limit
This parameter sets the value to which the Torque Command will be limited when the Torque Limit Enable destination is
active. To make the Torque Limit always active, assign the Torque Limit Enable destination to the Initially Active source on
the Assignments view.
Peak Torque
Displays the Peak Torque for the motor drive combination setup in the Setup View.
Online Status Tab
If online, this view will show the Torque Command, Limited Torque, Foldback RMS, and Shunt Power RMS.
Tuning View
The Tuning View allows you to modify tuning parameters based on specific application information.
By selecting Tuning in the Hierarchy Tree, the Tuning View will appear on the right (see Figure 48). The right part of the
window is divided into groups. An explanation of the groups and their functions is provided below.
For help on calculating tuning parameters and more in-depth tuning information, turn to “Tuning Procedures” on page 179.
Figure 48: Tuning View
Load Group
Inertia Ratio
Inertia Ratio specifies the load to motor inertia ratio and has a range of 0.0 to 50.0. If the exact inertia is unknown, a
conservative approximate value should be used. If you enter an inertia value higher than the actual inertia, the resultant motor
response will tend to be more oscillatory.
Friction
This parameter is characterized in terms of the rate of friction increase per 100 motor RPM. If estimated, always use a
conservative (less than or equal to actual) estimate. If the friction is completely unknown, a value of zero should be used. A
typical value used here is less than one percent.
Low Pass Filter Group
The Low Pass Filter will reduce machine resonance due to mechanical coupling and other flexible drive/load components by
filtering the command generated by the velocity loop.
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