Yaskawa MP920 User's Manual Design - Manual (Page 419)

8 Controlled Axis Support Functions
8-2
8.1 Reference Unit
A reference unit is the unit of measure used for positioning. In the MP920, the reference unit
can be millimeters, degrees, inches, or pulses. It is also referred to as a minimum reference unit
when it expresses the minimum measurement unit for a position. The minimum reference unit is
determined by two fixed parameters: Reference Unit Selection and Number of Digits Below
Decimal Point.
The fixed parameter: Number of Digits Below Decimal Point is disabled when the pulse unit is
selected.
Table 8.1 Reference Units
Number of Digits
Below Decimal
Point
Reference Unit (Electronic Gear Enabled) Pulse
(Electronic Gear
Disabled)
mm deg inch
0 1[mm] 1[deg] 1[inch]
1[pulse]
1 0.1[mm] 0.1[deg] 0.1[inch]
2 0.01[mm] 0.01[deg] 0.01[inch]
3 0.001[mm] 0.001[deg] 0.001[inch]
4 0.0001[mm] 0.0001[deg] 0.0001[inch]
5 0.00001[mm] 0.00001[deg] 0.00001[inch]
IMPORTANT