[3] Setting the standard let-off tension
In any of the following cases, set the basic let-off tension according to the let-off tension calibration and zero adjustment
procedure.
・
When “WARP TENSION CALUBRATION
NECESSARY” or “INITIALIZE SET VALUES”
appears on the function panel.
・
When the RAM is cleared.
・
When a new machine is installed.
・
When the let-off servo amplifier board is replaced
with a new one.
・
When the warp is loosened so that the actual tension
becomes within the range from
–
2 to
+
2.
・
When the warp beam is replaced.
[3.1] Tension calibration / zero adjustmentUpper let-off (pile let-off)
(1) If warps have been loaded on the machine, slack
them until no warp tension is applied onto the
tension roller.
(2) Touch “Calibration of the tension” on the Manual
page of [ Map ]
–
[ Lefoff ] on the function panel.
(3) “Adjust the tension to 0?” appears. Touch
“Yes”.
Tension adjustment and zero adjustment are
completed now. The display automatically returns
to the Manual page of [ Map ]
–
[ Lefoff ].
(4) Then check that the “Real Tension” shows
–
2 to 2
kg on the function panel.
If the “Real Tension” is outside of
–
2 to
+
2 kg,
repeat from step (2).
(5) Measure the warp beam diameter upon operation
start and input it on the [Map]-[Letoff] setting
screen.
(6) Start tension restoration.
Touching the tension restoration switch 11 starts
the tension restoration.
E3. Electric Components / Let-off Motions for A Towel Loom
64
