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Dialog: Function-Block: Linear-Motion

Contents

R13

Toolbar:

Right-side of Graphic-Area: Kinematics toolbar > Linear-Motion FB

Menu:

Add menu > Add Linear-Motion FB

How to Add:

1.	Click the Linear-Motion FB in the Kinematics FB toolbar or Add Menu

2.	Click in the graphic-area to 'place' the Linear-Motion FB.

The Linear-Motion FB in now in the graphic-area.

Double-Click
Linear-Motion FB

1.	Double-click the Linear-Motion FB in the graphic-area, Assembly-Tree or Selection-Window

- or -

1.	Click it in the graphic-area or the Assembly-Tree.

The Linear-Motion FB is now in the Selection-Window.

2.	Right-click it in the Selection-Window

3.	Click 'Edit Element...' in the contextual menu.

Right-Click
Linear-Motion FB

- or -

1.	Right-click the Linear-Motion FB in the graphic-area

2.	Click Edit-Element in the contextual menu.

See also: How to Open Dialog-Box

Default Output:

The default output from the Linear-Motion FB is equal to the Master Machine Angle

Output Function:

Edit to make the motion-values become 'before' or 'after' the Master Machine Angle.

The 'Function' of the Linear-Motion FB:

Output motion-value = Master Machine Angle + Constant

Optionally, select the Accumulate option, so that the output does not reset to 0 after each machine cycle.

The 'Function' of the Linear-Motion FB is then:

Output motion-value = (Revs * 360) + Master Machine Angle + Constant

Parameters:

Machine Angle +

The parameter is a constant which is added to the Master-Machine-Angle.

Output Option:

A check-box to determine whether the motion-value Resets to 0 after 360, or Accumulates after 360, and continues to increase.

Linear-Motion FB dialog-box

Linear-Motion FB dialog-box:

'Machine Angle +'

Enter a motion-value in the Machine Angle + 'data box'.

In the example: the motion-value = '53.4'.

Thus, if the Master-Machine-Angle is '120', the output motion-value from the Linear-Motion FB = 120 + 53.4 = 173.4

When the Machine-Angle is made to be:
'Positive', then the output is 'before' [it 'leads'], the Master Machine Angle.
'Negative', then the output is 'after' [it 'lags'], the Master Machine Angle.

Output Options:

•	Reset after one Cycle [default option and most typical] Output = Master Machine Angle + Value

- or -

•	Accumulate Output = (Revs * 360) + Master Machine Angle + Value

3.	Click the OK to close the dialog.

Notes on: 'Accumulate' or 'Reset after one Cycle' :

Generally, use Reset after one Cycle

Use 'Accumulate' when you want to model a watch, or a mechanism that does not have a motion-period equal to the Master-Machine-Angle.

Notes:

You must use a Linear-Motion FB in the 'first' kinematic-chain in the 'first' Mechanism-Editor.