Danfoss MCO 305 Design Manual page 199

MCO 305 Design Guide
33-22 Slave Marker Tolerance Window
SYNCMWINS
Range [Unit]
0 – par. 33-18 Slave Marker Distance
0 = Off
[qc] or in CAM mode [UU]
Function
The Slave Marker Tolerance Window SYNCMWINS
shows how large the permitted tolerance for the
occurrence of the markers is.
With the default setting [0] the window is not
monitored, which means that it is always synchro-
nized to the next marker even if this has a conside-
rably larger interval.
At every other setting only those markers are
accepted which are within the window. If there is
no marker within the tolerance window the corres-
ponding flag (SYNCSTAT) is set and no marker
correction takes place. The corresponding other
marker is also ignored and only corrected the next
time – i.e. no catching up to the next marker.
When SYNCM (or SYNCCSTART) is started the
monitoring only begins when the first marker has
been found.
NB!:
Changes of the parameter will become
active immediately – not only after the
next SYNCM command.
33-23 Start Behavior for Sync.
SYNCMSTART (with Marker Correction)
Option
Start Function 1
Start Function 2
Start Function 3
Start Function 4
Start Function 5
Start Function 6
Start Function 7
Start Function 8
Start Function 9
Start Function 10
Start Function 11
Start Function 12
Start Function 13
Start Function 14
CAM Master Start
default setting
__ Parameter Reference __
0
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[1000]
[1001]
[1002]
[1003]
[1004]
[1005]
[1006]
[2000]
[ ] value for use in communication via serial communication port
®
MG.33.L4.02 – VLT is a registered Danfoss trademark
Function
SYNCMSTART defines whether at start the synchro-
nization should be made to the leading, subsequent
or closest marker impulse of the master.
SYNCMSTART is only valid for synchronization with
marker correction (SYNCM and SYNCCMM).
0 = The slave marker following the first master
marker (after SYNCM) is aligned with the first
master marker.
1 = The first slave marker (after SYNCM) is aligned
with the following master marker.
2 = After reaching the master velocity the next
2 markers will be aligned (correction can be
forward or backward).
3 = After reaching the master velocity the next
slave marker will be aligned with the master
marker in front (correction is forward).
4 = After reaching the master velocity the next
slave marker will be aligned with the marker
behind (correction is backward).
5 = After reaching the master velocity the next
slave marker will be aligned with the closest
master marker (correction can be forward or
backward, always the shortest distance).
6 = After the command SYNCM the first two
markers are taken and the program
synchronizes to these markers.
1000 = as [0], but an offset (par. 33-12
SYNCPOSOFFS) is not active before the first
marker correction is done.
1001 = as [1], but an offset is not active before
the first marker correction is done.
1002 = as [2], an offset is not active before the
first marker correction is done.
1003 = as [3], an offset is not active before the
first marker correction is done.
1004 = as [4], an offset is not active before the
first marker correction is done.
1005 = as [5], an offset is not active before the
first marker correction is done.
1006 = as [6], an offset is not active before the
first marker correction is done.
2000 = Counting of the master pulses in MU begins
with the master marker.
NB!:
Only the parameter 2000 is effective in
curve synchronizations.
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