Siemens S7-300 - Page 93

Machine and cam data
9.11 Resolution
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03
93
Dependency between the velocity and resolution
The velocity indicated may vary within the following limits, depending on the resolution (data
relate to mm units):
● from 1
µm
/
min
to 90
m
/
min
, at a resolution < 1
µm
/
pulse
● from 1
µm
/
min
to 900
m
/
min
, at a resolution ≥ 1
µm
/
pulse
The velocity value is calculated and filtered by the module at intervals of 4 ms.
Its minimum inaccuracy of one pulse/4 ms rules it out for closed-loop control.