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17
Function library
17.1
Function blocks | L_DFRFG_1
1347
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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17.1.72.1 Ramp function generator (profile generator)
The ramp function generator accelerates the slave drive to the input master speed.
• Synchronising starts when the FB receives a touch probe edge from the master axis (e.g. a
conveying belt) at the
bSetTPReceived
input.
• When the slave reaches the setpoint speed of the master and the made up path difference is
lower than the synchronisation window set in
bSync
output is set to TRUE. At the
same time, the FB switches the profile generator to inactive and outputs the
nIn_v
input speed
to
nOut_v
.
[17-26] Example: Synchronisation
•
serves to set a maximum speed which limits the speed of the slave.
Sync. direction/TP function
• Selection of the direction of
rotation for synchronising
• With high offset values and low
input speed, the drive may change
its direction of rotation. In order
to prevent this, a direction of
rotation can be permanently
defined via this parameter.
1 cw/ccw - without TP
(Lenze setting)
2 cw - without TP
3 ccw - without TP
4 cw/ccw - with TP
5 cw - with TP
6 ccw - with TP
Parameters
Possible settings
Info
: Maximum speed
: Acceleration/deceleration time
: Synchronisation window
nOut_v
nIn_v
TRUE
FALSE
bSync
t
t