TAJIMA TLMX Series, User Manual

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To trim thread
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Chapter 6
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RR12R
2-6. To change thread breakage detecting sensitivity (LM head)
Use this function in the following cases.
(1)
Thread breakage is detected even when thread is not broken.
(2) Thread breakage detection timing is late.
2-6-1.
Explanation on the screen
[a]
Setting how many consecutive times of detection of upper thread breakage are regarded as
thread breakage to stop the machine
0: Not to stop even if upper thread is broken
When idling the machine, set “Upper” and “Under (Unit)” to “0”.
1, 2, 3, 4: To stop if upper thread is broken
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 [c] “Under Thread (Step Ratio)” in the
above figure 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”.
2, 4, 6, 8: To stop if under thread is broken
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.
F2
N
7 Thread Detection (LM)
0/1/2/3/4
70
Upper Thread
Under Thread )
Under Thread
4
0/2/4/6/8
30 100
[%]
[b]
[c]
[a] Number of upper thread breakage detecting times
Number of under thread breakage detecting times
Sensitivity of [b] described above
(Unit)
(Step Ratio)
1
High
4
Low 2 3
[Sensitivity]
2
High
8
Low 4 6
[Sensitivity]