Machine and cam data
9.7 Machine data of the axis
FM 352 electronic cam controller
80 Operating Instructions, 05/2011, A5E01071724-03
Time-based cam with hysteresis
A time-based cam is activated when:
● the cam start is crossed in the effective direction, and
● no hysteresis is set.
Note
The hysteresis will hide a time-based cam if its range between the reversal point and the
cam start is less than the hysteresis.
The figure illustrates a time-based cam that is not activated again.
1$
'LUHFWLRQDOUHYHUVDO
(IIHFWLYHGLUHFWLRQ
'LUHFWLRQDOUHYHUVDO
Cams
Hysteresis
1) Cam is activated, as the cam start is crossed in the positive effective direction.
2) After the direction reversal, the cam remains active until the activation time has
expired, regardless of the hysteresis.
3) Cam start is hidden by the hysteresis, the cam is not activated.
Figure 9-2 Activation of a time-based cam with hysteresis