Function block library
7-115
 SHB9300CRV EN 2.0
The profile generator generates ramps which lead the setpoint phase to its target.
l
Set acceleration and deceleration under C0751.
l
Set max. speed under C0752.
l
If the distance and the speed reach their setpoints, the output switches
DFRFG1-SYNC=HIGH. At the same time, the FB switches the profile generator inactive.
l
Set changeover point under C0755.
Stop!
Do not operate the drive at the torque limit M
max
,I
max
.
Fig. 7-82 Speed-time diagram DFRFG
The number of increments at DFRFG-IN (master drive) provide the target.The target can be
represented as a distance.In the speed-timediagram, the distance covered (phase)is shown as the
area under the speed profile. When synchronization is reached, master and slave have covered the
same distance (phase).
7.6.33.2 Quick stop
Removes the drive from the network and brakes it to standstill.
l
Activate with DFRFG-QSP=HIGH.
l
Set deceleration time under C0753.
l
Store the setpoint phase detected at DFRFG-IN.
l
Approach of the setpoint phase via the profile generator after reset of the quick stop request.
t
DFRFG-IN
C075
C0751 C0751
DFRFG-QSP
t
DFRFG-OUT
C0753
Fig. 7-83 Quick stop DFRFG
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