Siemens SIMATIC FM 452 Manual page 90

Machine Data and Cam Data
Relationship Between Travel Range and Resolution
The travel range is limited by the numeric representation in the FM 452. The
number representation varies depending on the resolution. Therefore, make sure
that you are always within the permitted limits when specifying values.
The maximum travel range is represented in the table below:
Resolution (RES) is in the Range
m
0.1 /
pulse
m
1 /
pulse
Relationship of the Feedrate and the Resolution
The feedrate displayed can be within the following limits depending on the
resolution (this information relates to units of millimeters):
from 1
from 1
The speed is calculated and filtered by the module every 4 ms.
It has at least an inaccuracy of one pulse/4 ms and is not suitable for closed-loop
control.
8-22
m
RES < 1 /
pulse
m
RES 1000 /
pulse
m m
/ to 90 / at a resolution of
min min
m m
/ to 900 / at a resolution of
min min
Maximum Travel Range
8 8
–10 m to 10 m (–100 m to + 100 m)
9 9
–10 m to 10 m (–1000 m to + 1000 m)
m
1 /
pulse
m
1 /
pulse
FM 452 Electronic Cam Controller
C79000-G7076-C452-04