Influence On The Display; Influence On The Modes/Function - Siemens SINUMERIK 840C Installation Instructions Manual

06.93
10.2.9

Influence on the display

The axis position is displayed with the relevant axis-specific number of decimal places. No
distinction is made between linear and rotary axes when defining the number of decimal
places.
The values for zero offset, working area limitation and scale are displayed in the input
resolution. If this is not possible, decimal places are truncated in order to enable the display of
the entire integer portion of the value.
Rotary axis values can be displayed as absolute or modulo values (depending on NC MD 560*
bit 7).
Service display
The service display shows the absolute position in the units of position control resolution.
When viewing this display, it must be noted that the significance of the last decade depends
on the axis-specific position control resolution.
In the case of endlessly rotating rotary axes (NC MD 572* bit 2=0) the control automatically
switches the service display from the maximum positive value to the maximum negative value
plus compensation factor when the 32 bit limit (1073741.824 degrees ˆ = 2982.61 revolutions at
a resolution of 10 -3 degrees) is reached.
10.2.10

Influence on the modes/function

"Increment" mode
In "Increment" mode, the machine travels at the specified incremental speed. The feedrate is
specified via machine data. The increment is derived from the mode (NC 1, 10, 100, 1000,
10000) and from the display resolution of the relevant axis.
The table below shows the traverse path in mm, inches or degrees in dependence on the
display resolution and the mode.
Display
res. 10
Increment [degr.]
INC 1 0.1
INC 10 1
INC 100 10
INC 1000 100
INC 10000 1000
© Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
Millimeters / Degrees / Inches
-1 -2
10 10
[mm] [mm]
[degr.] [degr.]
[inch]
0.01 0.001
0.1 0.01
1 0.1
10 1
100 10
6FC5197- AA50
10 Axis and Spindle Installation
10.2.9 Influence on the display
-3 -4
10 10
[mm]
[degr.] [degr.]
[inch] [inch]
0.0001 0.00001
0.001 0.0001
0.01 0.001
0.1 0.01
1 0.1
-5
10–15