Danfoss VLT 5000 Operating Instructions Manual page 25

Master marker type: Select here the type of marker signal for the master drive:
723
0 = rising edge of the zero track
1 = falling edge of the zero track
2 = rising edge at I5
3 = falling edge at I5.
NOTE:
This parameter is only used in marker synchronizing mode (parameter 725 = 2 or 5).
Marker interval at the master: Enter here the interval between two markers at the
724
master drive in quad counts. If this value is not known, it can be determined during the
test run. For procedure, see as described in the section "Testing the incremental
encoders" in the Loading belt, Marker synchronization, application example.
NOTE:
This parameter is only used in marker synchronizing mode (parameter 725 = 2 or 5).
Test run; Program 1:
725
Test run speed: Specify here the speed at which the test runs are to be carried out. The
speed is specified as a percentage of the maximum speed defined in Parameter 716.
Synchronous operation; Program 2:
Type of operation: Select here the type of operation of the Synchronizing Controller:
Setting range:
0 = Speed synchronizing.
1 = Position synchronizing.
2 = Marker synchronizing.
3 = Speed synchronizing with motor coast after stop.
4 = Position synchronizing with motor coast after stop.
5 = Marker synchronizing with motor coast after stop.
6 = Speed synchronizing with motor coast after stop and setting of gear ratio via
7 = Speed synchronizing with setting of gear ratio via analogue input 54.
With the selections "0" - "2" and "7" the motor is always controlled keeping the actual
position when stopping synchronization (input 1 = "0").
Test run; Program 1:
726
Test run acceleration: Specify here the acceleration for the test run as a percentage of
the maximum acceleration. 100 % means that the drive accelerates with the minimum
ramp specified in Parameter 717. 50 % means that the drive only proceeds with half the
acceleration, i.e. the acceleration takes twice as long as with the minimum ramp specified
in Parameter 717.
Synchronous operation; Program 2:
Hold function: If the contact at Terminal 29 is closed, the slave drive is disengaged, i.e. it
no longer runs in synchrony with the master. If "0" is set, the slave drive is brought to the
speed set in Parameter 727.
If "1" is set, the actual speed is maintained.
While these signals are present, the current Hold speed can be changed by means of
Inputs 32 and 33.
24
Synchronizing controller
analogue input 54.
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