Danfoss VLT 5000 Series Manual page 145

49 SYNCFACTM
The synchronization is described with a ratio of qc
(Master : Slave); SYNCFACTM determines the syn-
chronization factor for the master.
SYNCFACTM (49) and SYNCFACTS (50) make the
compensation of different drive factors possible or
the adaptation of the slave speed in relation to the
master speed set.
Example: If the master is to run twice as fast as the
slave, then the ratio is 2 : 1 (SYNCFACTM = 2;
SYNCFACTS = 1).
Content
Synchronization factor master (M:S)
Parameter Group
AXS
Unit
qc
Value range
1 ... MLONG
5 0 SYNCFACTS
The synchronization is described with a ratio of qc
(Master : Slave); SYNCFACTS determines the syn-
chronization factor for the slave.
SYNCFACTM (49) and SYNCFACTS (50) make the
compensation of different drive factors possible or
the adaptation of the slave speed in relation to the
master speed set.
Content
Synchronization factor slave (M:S)
Parameter Group
AXS
Unit
qc
Value range
1 ... MLONG/max. master velocity
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VLT 5000 SyncPos option
52 SYNCMARKM
SYNCMARKM and SYNCMARKS must be set ac-
cording to the ratio between the number of marker
signals from master and slave.
A ration of 1:1 means that each slave marker will
be aligned with each master marker. A ratio of 2:1
means that each slave marker will be aligned with
each second master marker.
Content
Marker number of the master
Parameter Group
AXS
Value range
0 ... 65535
5 3 SYNCMARKS
SYNCMARKM and SYNCMARKS must be set
according to the ratio between the number of mar-
ker signals from master and slave.
A ration of 1:1 means that each slave marker will
# 1
be aligned with each master marker. A ratio of 2:1
means that each slave marker will be aligned with
each second master marker.
Content
Marker number of the slave
Parameter Group
AXS
Value range
0 ... 65535
Example
The master marker is an external signal which
reports when a transport article arrives; the corres-
ponding slave marker is the index impulse of the
motor. If the motor always requires 3 rotations until
the article arrives, then this means that 3 index
impulses must elapse before a marker comes.
Thus, this results in a ratio of 3 : 1; only every 3rd
slave pulse is evaluated.
# 1
# 1
# 1
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