Chapter 2 Operation Instruction
main screen, press
“
”
to enter the interface of “Machine Parameter Management”. And then
user can select forward/backward positioning idling by stitches, color change code or stop code.
After the system returns to the main screen, user can pull the bar forward /backward to
complete the positioning idling.
2-10
Operation Bar and Turn Shaft Button
1.
Operation Bar (Embroidery Bar under the Table)
Stop status: pull the bar to right to begin embroidery (including idling in high or low speed) and
pull the bar to left to return (including idling in high or low speed)
Running status: pull the bar to the right end to embroider slowly and release to normal speed
and pull the bar to left to stop embroidery.
2.
Turn Shaft Button (on the operation bar case, under the table at right side)
Press the button to make the main shaft rotate one cycle and stop at 100±2.5
°
.
2-11
Thread-breakage detection and mending switch
Based on different working principles, thread-breakage detection devices are divided into three
types: thread take-up spring type, thread winding wheel (chopper wheel) type and mixed type.
For thread take-up spring type, it warns thread-breakage by detecting connection of take-up
spring and contact point. When thread breaks, the spring will close to the contact point. In
normal condition, this detection device reacts sensitively to face thread breakage, but can hardly
detect bobbin thread run-out. In case you change the embroidery thread, or thread tension
changes, you need to adjust spring pressure between the take-up spring and contact point. When
the spring pressure is too large, there will be False Positive; when the spring pressure is too
small, there will be False Negative.
For thread winding wheel type, it judges thread-breakage by checking the winding wheel angle.
It reacts very sensitively in case of face thread breakage; in most cases of bobbin thread run-out,
the consumption of face thread will reduce, as a result, system will judge by statistic method
and send out warning. Though it can almost avoid False Positive, it is not as sensitive as the
spring-type.
For the mixed type method, these two detection methods can complement each other with their
advantages, which results in sensitive and stabilized detecting effect.
22 BECS- D56 computerized embroidery machine owner’s manual
Содержание BECS-D56
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