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9.5
Axis Type
Overview
You can select the axis type with machine data item MD8. Choose either of
the following types:
Linear Axis
A linear axis moves between two range limits (traversing range min –10
max 10
(MD21, MD22) to form the "working range."
Linear axes have a limited traversing range. The limits are imposed by the:
Fig. 9-3
Rotary Axis
With rotary axes, the actual value is reset to "0" after one revolution. Rotary
axes thus have an infinite traversing range.
Fig. 9-4
Before you start a movement in "MDI" and "Automatic" modes, you can
define a fixed direction of rotation with R+ or R–.
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
Linear axis
Rotary axis
9
). The range limits may be bounded by software limit switches
Resolution of the numerical scale
The range covered by an absolute encoder.
Movement
M
Motor
Linear Axis
0
9 999
5 000
Rotary Axis
Description of Functions
9
,
G
Encoder
9-57
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