Special Set-Up Notes - DFE WebHandler 3 Instruction Manual

C. TAPER TENSION (TTF Option )
Taper tension is a feature which automatically reduces the tension set-point, and hence the tension, in a roll
as the diameter increases. Taper tension is usually needed when winding rolls with large build-up ratios, or
when winding slippery materials, so that the roll does not crush the core yet the material does not telescope.
When taper is enabled, the set-point will be equal to the displayed value at core, but will be reduced linearly
as the roll diameter builds until it is equal to the Taper Value times the displayed set-point at full roll.
In order to use the Taper feature, you must have a calibrated source of roll diameter information (see Section
3.4). Then, in the Operator Menus, navigate to
Feature.
You can adjust the amount of taper provided at full roll by navigating to Operator Menus->
and choosing an appropriate value (typically between 10 and 50 per cent).
D. NONSTANDARD METER SCALE (Option - NMS)
The WebHandler3 has a number of preprogrammed full-scale tension ranges to choose from. However if
your application requires a range not included as standard, it is possible to enter a different full-scale range
as follows: Navigate to Calibration Menu->Tension Range. Select "Non Standard", and press OK. A screen
will come up with a number that you can increase or decrease using the ! or " buttons. When the value
you want is displayed, press the OK key, which will return you to the menu system. Your unit will require
tension calibration after this setting is changed.
E. LINE SPEED FOLLOWER MODES
See Section 3.3 for making line speed signal connections and for calibrating your tachometer card, if used.
4.3 SPECIAL SETUP NOTES (BY VERSION)
A. 10 VOLT OUTPUT (Versions V, C & P only)
Two variations of control output are possible depending on the setting of the "
Output Range
Navigate to "
P versions, always use 0 to +V.
B. HIGH VOLTAGE OUTPUT ( Version V only)
To connect this option, see Figure 38, below for user connections. Your unit was set to the output ordered at
the factory. Use this procedure to change it if your requirements change.
Set Taper Enable
" in the Setup Menu, and choose your range. 0 to +V, or -V to +V. For V, C and
Figure 38 - V-OUT BOARD
37
and select On. This enables the Taper
Output Range
Set Taper Value
" function.