Emerson EZMotion User Manual page 208

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.
Module Free Running Timer Time
FreeRunTime
EZMotion has a free-running timer with 1 microsecond accuracy that is always running. The user has access to this timer value in a
user program using the FreeRunTime parameter. This value can be used to wait for a period of time, find the difference in time
between two point in a program, or any other application. The timer is not resettable by the user. Since the timer is an signed 32-bit
parameter with microsecond accuracy, its range is between 0.000000 seconds and 2147.483648 seconds.
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.
Gear Accel Enable
Gear.AccelEnable
Gear.AccelEnable is a Destination that when it is "on" allows a gear to run a specified accel ramp after the gearing command is
turned on.
Gear Accelerating
Gear.Accelerating
If Gear.AccelEnable is activated, this source is activated during the time between Gear.Initate = On and Gear.AtVel = On.
Gear Activate
Gear.Activate
The Gear.Activate destination is used to start gearing from an assignment. It is a level-sensitive function, which means that as long
as Gear.Activate is active, gearing will be in progress. When deactivated, gearing motion will come to a stop without deceleration.
This function is only available through the assignments screen. When gearing from a program, the Gear.Initiate and Gear.Stop
instructions are used to start and stop gearing
The gearing function must be stopped by the same method that started it. If it is started from an assignment, then it must be stopped
from an assignment or if started in a user program, it must be stopped in a user program.
Gear at Velocity
Gear.AtVel
The Gear.AtVel source indicates that the motor is running at the programmed gear ratio. In early releases of Gearing, acceleration
and deceleration will not be used with gearing, so this source will always be active when gearing is active.
Gear Command Complete
Gear.CommandComplete
This source will activate when gearing has been stopped, and will remain active until the gear is initiated again. Gearing does not
use a deceleration ramp, so this source will activate immediately after a Gear.Activate destination is deactivated.
Gear Command In Progress
Gear.CommandInProgrees
This source will activate when Gearing is initiated either from a program or through an assignment. The source will remain active as
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EZMotion User/Programming Guide
Revision: A8