—————— TPD32-EV ——————
340
6.17.5 Control logic
This chapter describes the most common logic sequences:
1.
Diameter initialization
2.
Initial phase
3.
Automatic switch
4.
Coil stop
5.
Jog function
Diameter initialization
This sequence is carried out before the starting of a winder/unwinder both with a coil initial phase when the line
is stopped and during an automatic switching.
The diameter value set in
Roll diameter
depends on the parameters
Diam preset 0
,
1
,
2
,
3
and on
Diam preset sel
.
If 2-4 different values of the starting diameter have been set, the selection has to be carried out via some
programmed digital inputs such as
Diam preset sel 0
and
Diam preset sel 1
, or via the parameter
Diam
preset sel
.
If the value of the starting diameter is set via an analog input, set
Diam preset sel
= 3.
Enable the parameter
Diam reset
for a time longer than 20ms.
Reset the digital input status before the start.
Initial phase
This sequence is carried out in order to start the initial phase with a stopped line.
Torque winder En
Start (drive)
Diam reset
Figure 6.17.9: Initial phase with a stopped line
Initialize the diameter value as stated above.
Enable the tension control and give the start command to the drive.
If the speed reference calculation is carried out inside the drive (
Speed demand en
= Enable) the initial
phase is started with the reference set to
W offset
and with a ramp time
Offset acc time
.
Now the line can be started.
Содержание TPD32-EV-...-2B
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