5 Diameter Tension Control
Tension Controller TC818
5.1 Introduction
In some special cases, it is not convenient to mount tension sensor or the requirement of the precision of
tension is not very high. In these cases, the TC818 could be configured as diameter tension controller.
To run TC818 as a diameter tension controller, scroll to
Function[29]
and choose
Radius control
, as the
following figure illustrates.
The highlights of the diameter tension control system:
●
Do not need to mount tension sensors.
●
The mechanism is much simpler and the mounting is much easier.
●
The taper tension control can be accomplished conveniently.
This function is especially suitable for rewind and material splitting machines in printing, packaging, printing
and dyeing industries, etc.
The TC818 continuously monitors the pulses on the main roller and material tube, then use these data to
calculate the radius of the material tube. Using the tube radius, setting value, rated
torque[39]
of the powder
brake and the built-in algorithm, the controller regulates the output to accomplish the control of the web
tension.
29.Function
Auto control
Radius control
▲
Diameter tension control: Unwinding
TC818 tension controller
Rx
R0
Thickness[02]
TC818
Tension Controller
OUT
mm
%
kg/N
OUTPUT
ON/O FF
MANUAL
AUTO
COM
LOCK
ALM
OUTA
OUTB
AUTO
MAN
Set
Esc
ALTEC
powder brake
proximity
switch or
encoder
proximity
switch or
encoder
material tube
main roller
24
