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MCO 305 Design Guide
__ Functions and Examples __
32
MG.33.L4.02 – VLT
®
is a registered Danfoss trademark
In addition to start and stop of marker synchro-
nizing the sample program has measuring of both
Master
and
Slave Marker Distance
. The average
distance between the detected markers is
calculated and the marker distance parameters
(33-17 and 33-18) are automatically set.
NOTE: The following is just an example and the
presented settings and programs might not cover
the complete functionality required by a real
application.
It is assumed that the motor and encoder connec-
tions are checked and that all basic parameter
settings such as motor data, encoder data and PID
controller are done. Instructions for setting up
parameters can be found in FC 300 Operating
Instructions and MCO 305 Operating Instructions.
Parameter Settings and Commands for Packaging Application
The following MCO 305 parameters are relevant for
marker synchronization:
32-0*
Encoder 2 – Slave
page 183
32-3*
Encoder 1 – Master
page 186
32-6* PID-Controller
page
189
32-8* Velocity
&
Acceleration page
191
33-1* Synchronization
page
194
Command
Description
Syntax
Parameter
DEF
SYNCORIGIN
Defines
master-slave relation for
the next SYNCP or SYNCM
command.
DEFSYNCORIGIN
master slave
master = reference position in
qc
slave = reference position
MOVE SYNCORIGIN
Relative shifting of the origin of
synchronization.
MOVESYNCORIGIN
mvalue
mvalue = Relative offset
PULSACC
Sets acceleration for master
simulation.
PULSACC a
a = acceleration in Hz/s
PULSVEL
Sets velocity for master simulation. PULSVEL v
v = velocity in pulses per
second (Hz)
SYNCM
Synchronization of angle/position
with marker correction.
SYNCM –
SYNCSTAT
Queries flag for synchronization
status.
res = SYNCSTAT
SYNCERR
Queries
actual
synchronization
error of the slave.
res = SYNCERR
–
IPOS
Queries last index or marker
position of the slave.
res = IPOS
–
MIPOS
Queries last index or marker
position of the master.
res = MIPOS
–
Содержание MCO 305
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