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To trim thread
2-3.
To change thread breakage detecting sensitivity (Thread Detection)
Use this function in the following cases.
Thread breakage is detected even when thread is not broken.
(1)
(2)
Thread breakage detection timing is late.
Screen
2-3-1.
6 Thread Detection
F2
Upper thread
Under (Unit)
Under (Step Ratio)
Setting how many consecutive detections of upper thread breakage are regarded as thread
[a]
breakage
0: Not to stop even if upper thread breaks
When idling the machine, set "Upper" and "Under (Unit)" to "0".
N: To stop if upper thread is broken (the detecting sensitivity differs in each needle bar)
(→p.108)
1, 2, 3, 4: To stop if upper thread is broken (Detecting sensitivity is the same in all needle bar)
When selecting "3", the thread breakage will be detected after upper thread breaks three
times continuously.
The relationship between the number of detecting times and sensitivity is shown as follows.
[b]
Setting how many consecutive times of detection of "Under (Step Ratio)" of [c] are regarded as
thread breakage to stop the machine
0: Not to stop even if under thread is broken
When idling the machine, set "Upper" and "Under (Unit)" to "0".
N: To stop if under thread is broken (the detecting sensitivity differs in each needle bar)
(→p.108)
2, 4, 6, 8: To stop if under thread is broken (Detecting sensitivity is same in all needle bar)
When selecting "4", the thread breakage will be detected after under thread breaks four
times continuously.
The relationship between the number of detecting times and sensitivity is shown as follows.
N
0/1/2/3/4
4
0/2/4/6/8
70
30 100
[%]
1
2
3
4
High
Low
[Sensitivity]
2
4
6
8
High
Low
[Sensitivity]
[a]
[b]
[c]
Chapter 5
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2
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4
5
6
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8
9
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