Mode Setting Computerized Control System for Square Buttonhole Machine
88
necessary value, at last press
F to return to the origin.
③
Press
to return to the Test Mode Interface
（2）
Adjustment of Down Thread Trimmer
①
Adjusting Method
In the interface of Test Mode, press
（
I02 Down thread
trimming
）
to enter the adjustment interface of Down thread
trimming (as shown in the right figure):
Down Thread Trimming
：
No. Name
Range
Initial
value
A Origin
position
B
Releasing position
-40~-15
-22
C
Position for trimming
-10~10
0
D
Trimming position
40~60
50
E
Initial Position
-10~15
0
④
Select the mode position you wish to adjust
Press
G to select the positions (A, B, C, D) for
adjustment, then press the
/
key to adjust the
necessary value, at last press
F to return to the origin
Press
to return to Test Mode Interface.
（3）
Input Signal Test Method
In the interface of Test Mode, press
(I03 Input
Inspection) to enter the interface of input inspection interface
(as shown in right). Users can confirm the input status of each
switch and sensor.
ON
：
Turn On
OFF
：
Turn Off
A
：
mount of pedal pressed
B
：
Pedal Sensor
C
：
Thread-breakage Detection
D
：
Knife Sensor
