7. WEB Control Application
7-23
7.7.5 Diameter Computation
1) WEB_14 Diameter Src : Diameter Computation Type Setting
This function is the function code that determine whether to calculate the diameter computation by inverter
internal S/W or to receive the input diameter via the analog output of the diameter sensor attached to the system
through the analog input terminal of the inverter. In case of setting WEB_14 Diameter Src to
“Internal”
, diameter is
computed by the inverter internal S/W, while if set to
“External”
, the diameter is input by the diameter sensor.
Accordingly, when set to
“External”
, the diameter is not computed in the diameter inverter, and furthermore, the
diameter preset function
doesn’t operate.
Function
Code
Loader Display
Name of Function
Set Range
Unit
Factory
Default
WEB_14
Diameter Src
Diameter Computation Type
Setting
Internal
External
Internal
2) WEB_15 Diameter LPF : Diameter Computation LPF Time Constant
When computing the diameter, to avoid the sudden change in diameter you may set low pass filter(LPF). This set
value operates with LPF delay time. In case set the set value in large scale, diameter computation becomes slow,
while setting in small scale, diameter computation becomes quicker.
Function
Code
Loader Display
Name of Function
Set Range
Unit
Factory
Default
WEB_15
Diameter LPF
Diameter Computation LPF
Time Constant
0.01 ~ 300.00
sec
5.00
3)
WEB_16 False Core : False Core Value Setting
In case the diameter received by the inverter through the diameter computation S/W inside the inverter or by the
system where the diameter sensor is built in is smaller than the set value in the WEB_16 False Core, it is judged as
“False Core”
. At this time, if one of multi-function output DIO_41 AX1 Define ~ DIO_43 OC1 Define is set to
“False
Core”
, the set multi-function output is On. The reference of the set value is [%] of the diameter.
Function
Code
Loader Display
Name of Function
Set Range
Unit
Factory
Default
WEB_16
False Core
False Core Value Setting
0.0 ~ 50.0
%
5.0
7.7.6 Winder setting
1) WEB_17 Re/Un Wind : Rewind/Unwind Setting
There are three methods in general at the time of tension control. First, to control the tension of the fixed roll
using Bridle Roll or Nip Roll. Second, to wind the Web as in the Winder in which the diameter of Winder get larger
as time goes by. Lastly, to unwind the Web as in the Unwinder in which the diameter of Unwinder gets smaller as
time goes by. In this function
, you may set to “Rewind” in case of winding the web as
in the Winder or control the
Содержание LSLV-iV5 Series
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