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Fitting Instruction for Remaining Thread Monitor
4
Electrical setting
4.1 Setting bobbin thread monitor
Ausgabe/Edition:
Änderungsindex
03.2011
Rev. index: 00.0
Anbauanleitung Restfadenwächter
Teilesatz 0911 597754
Kit 0911 597754
The residual thread monitor is delivered with a basic factory
setting.
Normally the sensitivity of the residual thread monitor must not be
readjusted!
The preset sensitivity should only be adjusted if the residual thread
monitor does not function properly.
(See Setting the sensitivity).
Connections:
Plug connection 2 (X1) = Light barrier hook (to the right)
Plug connection 4 (X3) = Input and output of the sewing drive
control.
1
2
Electrical setting of the residual thread monitor / the light
barrier
The light barrier's sensitivity factory presetting via the
potentiometer 1 (R4) in the control may only be altered if the
residual thread monitor does not function properly.
Setting the sensitivity
–
Setting the sensitivity with the potentiometer 1 (R4), plug
connection 2.
–
Turning clockwise = higher sensitivity,
–
counter-clockwise = lower sensitivity.
Operation of the sensitivity setting
–
Insert an empty bobbin into the hook and position the hook so
that the light barrier can point unimpededly through the slit in
the hook case to the bobbin.
–
Set the potentiometer to the highest sensitivity (by turning it
clockwise) and turn the bobbin in the hook until the reflecting
surface appears. The LED 3 (V10) lights up and the output to
the control as well as the additional output are switched on.
–
Now reduce the sensitivity on the potentiometer 2 until the
reflection on the bobbin is still just recognized.
Note:
In the setting mode the LED 3 (V10) lights up for one second at
each reflection.
Printed in Germany
Teile-Nr./ Part-No.:
0791 911703
3
4
Blatt:
von
Sheet: 19 from 20