Siemens SIMATIC FM 452 Manual page 98

Machine Data and Cam Data
Dynamic Adjustment on a Cam
There are two distinct situations relating to the range of the cam:
1. The static and dynamic range of the cam overlap.
2. The static and dynamic range of the cam do not overlap.
Table 8-1 Dynamic Adjustment on a Cam (Different Cases)
Dynamic Adjustment
Direction of travel
Actual value
Cam
Ç Ç Ç
Dynamic adjustment
Direction of travel
Actual value
Cam
Lead distance
Ç Ç
Dynamic
Ç Ç
adjustment
Dynamic range
8-30
CS CE
Lead distance
Ç Ç Ç Ç
CS CE
Ç Ç Ç
Ç Ç Ç
Ç Ç Ç Ç
Static range
Description
If the dynamic range of the cam overlaps
the static range of the cam, the following
applies:
If the dynamic range of the cam has
been reached, the cam is activated.
At the same time, calculation of a
new dynamic adjustment is disabled.
If the actual value reaches the static
range of the cam, the calculation of a
Ç Ç
new dynamic adjustment is enabled
again, a change in feedrate affects
the cam end.
If the cam is deactivated at the end
of the dynamic range, dynamic
adjustment is disabled again until the
end of the static range of the cam.
If the dynamic range of the cam does
not overlap the static range of the cam,
the following applies:
If the dynamic range of the cam has
been reached, the cam is activated.
At the same time, calculation of a
new dynamic adjustment is disabled.
At the end of the static range of the
cam, dynamic adjustment is enabled
again.
A new dynamic adjustment is possible
FM 452 Electronic Cam Controller
C79000-G7076-C452-04