Function library
Function blocks
3.5.29 Digital frequency ramp function generator (DFRFG)
3−172
l
EDSVS9332P−EXT DE 2.0
3.5.29.1 Profile generator
t
DFRFG-IN
C0752
C0751 C0751
C0755
DFRFG-SYNC
t
DFRFG-OUT
Fig. 3−124 Synchronisation on DFRFG
The profile generator generates ramps which lead the setpoint phase to its target position.
l Set acceleration and deceleration via C0751.
l Set max. speed via C0752.
l When the distance and speed reach their setpoints, the output switches
DFRFG1−SYNC = HIGH. At the same time the FB switches the profile generator to "inactive".
l Set the switching point via C0755.
Stop!
Do not operate the drive with this function at the torque limitation M
max
, I
max
.
Fig. 3−125 Speed−time diagram DFRFG
The number of increments at DFRFG−IN (master drive) defines the target position. The target can be
displayed as a path. The speed−time diagram shows the distance covered (angle) as the area below
the speed profile. When synchronicity is reached, master and slave have covered the same distance
(angle).
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