Modulo 360 Degrees - Siemens SINUMERIK 840D sl Function Manual

The tangential velocity of the rotary axis refers to diameter D
the case of unit diameter D=D
tangential velocity in mm/min (or inch/min) are numerically identical.
In general, the following applies for tangential velocity:
F = F
With D
JOG mode: Revolutional feedrate
In the JOG mode, the response of the rotary axis spindle also depends on the setting data:
SD41100 $SN_JOG_REV_IS_ACTIVE (revolutional feed rate for JOG active)
13.2

Modulo 360 degrees

Term "modulo 360°"
Modulo rotary axes are rotary axes, whose position is represented within the controls in the
range from 0° to 359.999°.
In the figure below, the rotary-axis absolute position in the positive direction of rotation is
represented as a spiral. An arrow marks the actual absolute position on this spiral (example:
point C' = 420°). By tracing the arrow back around the circle it is possible to assign an
appropriate modulo position within the 360° range to every absolute position. In the example
below, absolute position point C' = 420° is mapped onto point C = 60° using modulo conversion.
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
* D/D
angle unit
= 360/π
unit
, the programmed angular velocity in degrees/min and the
unit
F = Tangential velocity [mm/min]
F = Angular velocity [degrees/min]
angle
D = Diameter acted on by F [mm]
D = Unit diameter [mm]
E
π = Circle constant Pi
R2: Rotary axes
13.2 Modulo 360 degrees
(unit diameter D =360/π). In
unit unit
733