Tension control parameter group 14
PARAMETER DESCRIPTION 300
Parameter
Name
Default Setting Range
Content
14-17
P.615
Initial winding radius
source2
100mm
1～10000mm
---
14-18
P.616
Initial winding radius
source3
100mm
1～10000mm
---
14-19
P.617
Winding radius filtering
tome
0ms
0～1000ms
---
14-20
P.618
Current winding value
0mm
0～10000mm
---
14-21
P.619
Pulse per cycle
1
1～60000
---
14-22
P.620
Cycle per layer
1
1～10000
---
14-23
P.621
Material
thickness
setting source
0
0
Material thickness is determined by parameter 14-24
（P.622）～14-27（P.625）
1
Material thickness is determined by analog value
14-24
P.622
Material thickness 0
0.01mm
0.01～
100.00mm
---
14-25
P.623
Material thickness 1
0.01mm
0.01～
100.00mm
---
14-26
P.624
Material thickness 2
0.01mm
0.01～
100.00mm
---
14-27
P.625
Material thickness 3
0.01mm
0.01～
100.00mm
---
14-28
P.626
Maximum thickness
1.00mm
0.01～
100.00mm
---
Winding radius calculation
The winding radius needs to be calculated in every tension control method. The winding radius can be obtained
through the in winding radius calculation module integrated in the inverter or the external winding radius sensor.
When parameter 14-11(P.610) is 0，the winding radius is calculated by the system current linear speed and the
inverter output frequency. The formula is as follows:
D
(i V) / (π n)
Where D:winding radius，i:mechanical transmission ratio, V:linear speed，n:motor speed.
When the system`s operation speed is low, the linear speed of the material and the output frequency will be lower.
The smaller the detection error the bigger the winding radius calculation error, so a minimum linear
speed(14-31(P.629)) would be necessary. When the linear speed of the material is lower than parameter
14-31(P.629),the calculation stops, and the current radius is kept. The value should be set below the normal linear
speed.
When parameter 14-11(P.610) is 1, the winding radius is calculated by the encoder on the motor and the feedback
of the gear. In this condition, connect the pulse signal to A1/B1 on the PG card, and set the encoder input
type(09-02(P.351))，mechanical transmission ratio(14-03(P.603))，pulse per cycle(09-01(P.350))，cycle per
layer(14-22(P.620)), and material thickness(14-24(P.622)).
Setting
