From Powertools Pro; Stopping Motion; From Assignments - Emerson EZMotion User Manual

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Figure 179:
Gear.Initiate
Gear.Initiate is used in a program to initiate Gearing motion. The user must specify the Gear Ratio that will determine the
velocity and direction of the motion. Since Gear is level sensitive, the gear will remain active until a Gear.Stop instruction is
used in the program.
If the program ends while gearing motion is active, the gear will automatically be stopped.
This instruction should not be used within a loop in the user program. If the Gear.Initiate instruction is processed while gearing
is active, the program will hang on this instruction.

10.1.3 From PowerTools Pro

Some views in PowerTools Pro have an Online tab that allow the user to initiate motions while online with the device. The
specific views that have Online tabs to initiate motion are the Home view, Jog view, and Index view.
On the Home view Online tab, there is a Start button that will initiate the Home sequence from PowerTools Pro.
On the Jog view Online tab, there are two buttons that will initiate jog motion in the positive and negative directions. The button
must be held active to maintain the jog motion. If the button is released, the jog will stop.
On the Index view Online tab, there is a Start button that initiates the specific index that is being displayed in the Index view.
10.2

Stopping Motion

10.2.1 From Assignments

There are numerous different methods that can be used to stop or pause motion using Assignments in the EZMotion. Listed
below are the various assignment Destinations.
Stop
The Stop Destination will, when activated, stop any motion that is active, along with any user programs that are active. Stop is
level sensitive, so that while it is active, all motion and programs are prevented from starting. Stop will override any other
functions that are active.
MotionStop
The MotionStop Destination will stop all motion that is currently active. It will not stop any user programs. Stop Motion is level
sensitive so that all motion will be prevented from starting while Stop Motion is active.
Feedhold
The Feedhold Destination will pause all motion (other than gearing) by effectively bringing time to a halt. Feedhold is level
sensitive meaning that Feedhold will be active as long as the Destination is held active. When Feedhold deactivates, the
motion will continue.
While Feedhold is active, any active motion profiles do not stop, even though the motor will decelerate to zero speed. Even
though the motor is stopped, the motion profile remains active. All of the motion attributes will remain active (i.e. In Progress,
At Velocity, Accelerating, Decelerating, etc.). For instance, if Feedhold activates while an index is in progress, the motor will
stop, but the Index.#.CommandInProgress and Index.#.AtVel will be active just as though the motor is still moving.
The Feedhold ramp is configured in units of Seconds. The same time and distance will be covered during acceleration back to
velocity as traveled during deceleration to zero velocity.
Programs continue to process while Feedhold is active. If a program encounters a motion instruction while Feedhold is active,
the program will be stuck on that line of the program until Feedhold is deactivated.
EZMotion User/Programming Guide
Revision A8
20 Revs
Blended Index Example 2
www.controltechniques.com
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