9
9-3
FM 351 Positioning Function Module
EWA 4NEB 720 6001-02
9.1 Generally Applicable Definitions
The maximum possible travel range is determined by the number representa-
tion in the FM 351.
!
Caution
The travel range of the FM 351 may be larger than the maximum range of
the physical axis.
Therefore, secure your axis against the maximum possible limits being ex-
ceeded.
Basically, an operating mode can only be started when all the starting condi-
tions are satisfied. These are:
 The drive enable must be set.
 A “1” signal is applied to the enable input.
 A start command has been detected by the FM 351.
Travel Range
Starting an
Operating Mode
Operating Modes and Settings