Yaskawa MotionWorks+ Windows Software User Manual

Page 30

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The Project Explorer

MotionWorks+™

24

Gear Box Output: If a mechanical gear box is used, enter the value which corre-

sponds to the number of times the input shaft rotates for the
number of times the output shaft rotates. These are integer val-
ues. If a 10:1 gear box is used, enter “1” for the gear box output.

Machine Cycle:

This is the maximum position value of the external axis. When
this value is reached, the position wraps back to “0”. Machine
cycle is only applicable if Movement Type is set to “Rotary”. If
the application involves camming, the machine cycle may be
the product length. Note: If the machine cycle in user units
does not equate to an integer number of pulses, the positioning
units will drift. In this case, program an offset at periodic inter-
vals to compensate for lost pulses. See note at the beginning of
the System Property section about Machine Cycle limitations.

Movement Type: Select either “linear” or “rotary”. Rotary implies an axis that

rotates in one direction only, but with a cyclic period. The posi-
tion data is automatically modularized to fit within one cyclic
period or machine cycle when rotary is selected.

Pulse Type:

Select “Quadrature”, “Reverse Quadrature”, “Pulse & Direc-
tion”, or “Reverse Pulse & Direction”.

Resolution:

The number of quadrature pulses per revolution of the external
encoder.

User Units:

Select from “centimeters”, “degrees”, “inches”, “microns”,
“millimeters”, or “pulses”. Custom units may also be entered.

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