Tension control parameter group 14
PARAMETER DESCRIPTION 299
14-07
(P.607)
is the zero speed tension increase option, used to set the tension of the system during zero speed. It
is mainly used to overcome the static friction at startup or keeping in a certain tension in zero speed. When
controlling small tension or having startup difficulties, appropriately increase the value of this parameter.
14-08
(P.608)
is the zero speed threshold parameter. When inverter operation speed is lower than this parameter, it
is considered working under zero speed.
14-09
(P.609)
is the tension taper parameter. This parameter is only used for winding control. When winding, there
are times that would be necessary to reduce the tension when increasing the winding radius in order to ensure the
material quality.
The formula of tension taper:
F=F0* 1 K* 1
D0+D1 / D+D1
F: actual tension，F0 : set taper，D0:shaft diameter，D:actual winding diameter，D1:parameter 14-10
(P.654)
`s
tension taper compensation value，K: tension taper.
Parameter 14-10
(P.654)
is the tension taper compensation value, which is able to slow down the tension decrease.
5.15.3 Winding radius calculation
Output torque is controlled by opened-loop torque mode by winding radius. The output frequency that corresponds to
the linear speed is obtained by closed-loop speed mode through winding radius.
Parameter
Name
Default Setting Range
Content
14-11
P.610
Winding
radius
calculation option
0
0
Calculate winding radius with linear speed
1
Calculate by thickness(encoder of motor side)，pulse signal
connects to A1/B1 of PG card
2
Calculate by thickness (encoder of winding shaft)，pulse
signal connects to HDI terminal
3
Analog value or pulse input
14-12
P.650
Calculate winding
memory control by
thickness calculation
0
0
Not saving winding radius when power outage
or calculation stops
1
Save winding radius when there ’ s a power outage or
calculation stops，and use saved winding radius as initial
winding radius when power recovers or calculation restarts
14-13
P.611
Maximum
winding
radius
500mm
1～10000mm
---
14-14
P.612
Mandrel radius
100mm
1～10000mm
---
14-15
P.613
Initial winding radius
source
0
0
Initial winding radius is determined by parameter 14-16
（P.614）～14-18（P.616）
1
Initial winding radius is determined by analog value
14-16
P.614
Initial winding radius
source1
100mm
1～10000mm
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