Lenze EVS 9300 series - Page 231

Function library
Function blocks
9.2.27 Digital frequency ramp function generator (DFRFG)
9-105
L
EDSVS9332S-D11 EN 3.0
9.2.27.1 Profile generator
t
DFRFG-IN
C0752
C0751 C0751
C0755
DFRFG-SYNC
t
DFRFG-OUT
Fig. 9-66 Synchronisation on DFRFG
The profile generator generates ramps which lead the setpoint phase to its target position.
z Set acceleration and deceleration via C0751.
z Set max. speed via C0752.
z When distance and speed reach their setpoints, the output switches DFRFG1-SYNC = HIGH.
At the same time the FB switches the profile generator to ”inactive”.
z Set the switching point via C0755.
Stop!
Do not operate the drive with this function at the torque limitation M
max
,I
max
.
Fig. 9-67 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 synchronisation is reached, master and slave have covered the same
distance (phase).