Emerson FM-3 - Manual (Page 167)

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Parameter Descriptions
Foldback RMS
FoldbackRMS
This read-only parameter accurately models the thermal heating and cooling of the drive.
When this parameter reaches 100 percent, current foldback will be activated.
Following Error
FollowingError
Following Error displays the difference between the Position Command and the Position
Feedback.
Enable Following Error
FollowingErrorEnable
This parameter can be setup from the Position view or from a program. When enabled, a
following error fault will be generated if the absolute value of the Following Error exceeds
the Following Error Limit.
Following Error Limit
FollowingErrorLimit
This parameter is used when the FollowingErrorEnable bit is set. This limit is compared to
the absolute value of the FollowingError. If the FollowingError is greater than the
FollowingErrorLimit, a following error fault will be generated.
Friction
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.
Gear Accel
Gear.Accel
This parameter sets the acceleration of the realtime gearing ramp. Gear.Accel units are in
Follower Units/Velocity Time Base/Acceleration Time Base. The Gear.Accel functions only
when the follower is ramping its speed up to meet the Masters at the specified Gear.Ratio.