10
P-24
Intermittent air suction off
time (×100ms)
0-600
0
0
：
for no intermittent air suction
Front suction off time (valid when P-46 function
setting is 1)
P-25
Low pressure mode,
selvage suction
synchronization time
（
P16=1
）
0-2000
200
Valid for P-16 setting is 1
Technician parameter (Press [P] key and power on to enter)
P-26
The stitches number
between two sensors
1-600
100
Cycle period parameter. In a circle the rear sensor
receive signal then can continue running, otherwise a
cycle stop.
P-28
Times of Backward tension
release ON(stitches)
0-50
5
The small value the open is fast.
P-29
Number of stitches when
forward suction ON
(stitches)
1-50
1
The small value the open is fast.
P-30
Numer of stitches when
forward suction OFF
(stitches)
0-50
5
The small value the close is fast.
P-31
The delayed time after
trimming suction. (ms)
100-5000
200
The small value the close is fast.
P-33
Times of Backward suction
ON (stitches)
0-50
3
The small value the open is fast.
P-35
The delayed stitches
number before the machine
stops (Stitches)
1-3
3
(Valid for Back-sensor OFF condition
）
After through cloth back-sensor how many stitches
will stop the machine automatically.
P-36
The response time of front
sensor (ms)
10-990
50
Front sensor trigger time: the small value the response
is fast, the large value the response is slow.
P-37
The sensitivity of front
sensor
0-700
380
In order to adapt different cloth material setting front
sensor receive strength.
P-38
The sensitivity of middle
sensor
0-700
440
In order to adapt different cloth material setting
mid-sensor receive strength.
P-39
The delaying time of front
presser foot lifter
（
ms
）
100-2000
300
Under the full automatic/ semi-automatic
：
Front trigger retention time after auto-foot-lifting, the
larger value the longer retention time.
P-40
Starting time for rear
presser foot lifter
（
ms
）
0-2000
120
The starting time of rear presser foot lifting, the
smaller value the faster of response.
P-41
Full-on time setting for
presser foot
（
ms
）
10-990
100
The larger value the higher of foot-lifting (Noted: Not
too high)
P-42
Duty-cycle time setting for
presser foot
（
%
）
10-90
20
Adjustment for duty-cycle of AFL. Fine tuning can
reduce the over- heating.
P-43
The time for the presser
foot laying down
（
ms
）
10-990
100
The action time of presser foot laying down sequence.
Summary of Contents for QD2622 Series
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