Index Card "Curve Info; Index Cards Encoder, Home, Inputs/Outputs; And Pid - Danfoss VLT5000 SyncPos Operating Instructions Manual

Master Length / Slave Length
Information about the cycle length of the master
resp. slave set in the table of fixpoints.
NB!
Slave length must be positive, this can be
ensured by defining positive direction in
parameter POSDRCT (28).
■ ■ ■ ■ ■ Index Card "CURVE INFO"
In this index card, you can determine the number of
→ "CYCLES/MIN MASTER" in the input field. In the
other fields, you can find curve information calcula-
ted from the parameters and the curve application.
Cycles/min Master
Enter the number of cycles of the master per minute.
In most cases, this will be the (maximum) number of
products that are processed per minute.
Max. Actual Velocity
This value indicates the maximum velocity of the
slave in this curve application in units.
You can graphically display the entire velocity pro-
gression in the curve profile. Activate →
"VELOCITY". The blue curve shows the velocity
progression of the slave in this curve application. On
the right axis of the diagram, you can read the
values in units that describe the change of the slave
in relation to the master: ∆ UU/MU.
Max. Slave Verlocity and Velocity Limit
This is the maximum velocity which the slave can
reach, depending on the velocity of the master. The
faster the master runs or the more cycles/min. it
runs, the lower the velocity limit becomes. If the
velocity progression exceeds this limit, the slave will
not be able to follow the master.
You can also graphically display the velocity limit in
the curve profile. Activate →
76
■ ■ ■ ■ ■ Index Cards Encoder, Home, Inputs/Outputs
"VEL. LIMIT".
Programmable SyncPos motion controller
Max. Actual Acceleration
The value indicates the maximum acceleration of
the slave in this curve application in units that
describe the change of the slave in relation to the
master: ∆ UU/MU.
You can graphically display the entire progression of
the acceleration in the curve profile. Activate
→
"ACCELERATION". The yellow line shows the
acceleration progression of the slave in this curve
application. Normally, the acceleration is relatively
small in comparison with the velocity. Thus, it is
recommended to deactivate the display of the velo-
city and the velocity limit in order to see a good
representation of the acceleration in the diagram.
Max. Slave Acceleration and Acceleration Limit
This is the maximum acceleration which the slave
can reach, depending on the acceleration of the
master. The faster the master runs or the more
cycles/min. it runs, the lower the acceleration limit
becomes. If the acceleration progression exceeds
this limit, the slave will not be able to follow the
master.
You can also graphically display the acceleration
limit in the curve profile. Activate →
LI MIT".
Interval Size
The interval size is derived from the number of
intervals per master cycle length.
Interval Time (ms)
The time in (ms) for an interval is also derived from
the number of intervals per master cycle length. It
should not be smaller than 30 ms. (30 to 100 ms are
suitable values.) Thus, you should make changes in
"CURVE DATA" → "NUMBER OF INTERVALS" in
order to get a reasonable value.

and PID

For further information regarding content, units,
input areas and factory settings of these parame-
ters, consult the Parameter Reference section or
select the input field of the parameter and press
[F1].
MG. 1 0.J8.02 – VLT is a registered Danfoss trade mark
"ACC.