﻿ Dialog: Function-Block: Gearing

# Dialog: Function-Block: Gearing

## Gearing FB dialog-box

Command:

What for:

 1 To apply a simple linear function to motion-values at the input-connector according to parameters as set in the Gearing FB.
 2 To edit these three Parameters in a simple linear equation
 The 'Function' of the Gearing FB is: Output = *(Input +) + Identical in form to: y = m.x + c

Parameter is a constant which is added to the motion-value at the input-connector.

Gearing-Ratio:

Multiply the result of : [Input Motion-Values + 'Add before Gear-ratio'] by the Gearing-Ratio

You can enter the Gearing-Ratio parameter in one of two ways.

As a:

 • Real Number Enter any number (Irrational and Rational)

- or -

 • Rational Number [See the Rational Gear separator ]

To do this, you enter two numbers, exactly like the number-of-teeth on a DriveR-Pulley and DriveN-Pulley.

You can enter a negative number of teeth, also.

Notes:

 • The Gearing-Ratio can be a positive or negative number. When using the 'Rational Number' option, enter a negative number-of-teeth, to make the Gearing-Ratio negative.
 • The Gearing-Ratio cannot zero [0].

Parameter is a constant which is added to the result of : [Input value + 'Add before Gear Ratio'] × Gearing-Ratio

 1 Click the Gearing FB in the Function-Block Toolbar.
 2 Click again in the graphic-area to 'place' the FB in the graphic-area.

The Gearing FB is now in the graphic-area.

How to Edit a Gearing FB:

Double-click a Gearing FB in the graphic-area to open the Gearing FB dialog-box.

See image to the left.

Ratio and Phase separator

Gearing Ratio: Multiply Input Value with a Number:

Enter a Real or Integer Number. For example 1.5462

The FB will multiply the input by the Gearing Ratio, then add this number to give the motion-value at the output-connector

The FB will add this number to the motion-value at the input-connector, then multiply by the Gearing Ratio

Rational Gear separator

Irrational Number / Rational Number radio buttons.

Irrational Ratio: Enter Gearing ratio at top of dialog - any real number.

Rational Ratio: Use the Input Pulley and Out Pulley boxes

Enter integer numbers - similar to teeth on pulleys.

Notes:

 • The default parameters do not change the motion-values
 • Use a Gear Ratio of '-1' to reverse the direction of a Crank.
 • Connect a Gearing FB to the input of a Motion FB to change the number of times you complete the Motion in one Machine Cycle.
 • Connect the output of a Motion FB to the input of a Gearing FB to change the amplitude of the motion.