– 77 –
No. Function Setting range Initial value Remarks
U048
Route of origin return by means of clear key can be selected.
: Straight line return :
Reverse return of pattern
- This function is used
when straight line
return from the midway
of pattern to the start of
sewing is not possible.
U049
Bobbin winding speed can be set.
800 to 2000 1600 Max. speed limitation
has priority.
U050
Operation timing of material closing is selected. LK-1901B only
: Output prohibited
: Operation when work clamp foot comes down.
: Operation at the time of start
- For the machines other
than LK-1901B, this
function is not indicat-
ed.
U051
Wiper operation method can be selected.
:
Without wiper at the time of thread trimming on the way
: With wiper at the time of thread trimming on the way
①
: With wiper at the time of thread trimming on the way
②
: Magnet wiper
-
①
: Without return of
the last wiper
②
: With return of the
last wiper
U055
This key selects enable/disable of tie stitching for button sewing.
: Enable : Disable
- .
U064
The dimension input increment can be selected.
: In percentage (%) : In dimension
-
U065
Y origin shift method can be selected.
: Standard : Offset by −5 mm (for 1904 work clamp)
-
U069
Common/individual of the 2-step stroke height is selected.
: Common
: Individual (the height can be set with respect to each direct pat-
tern)
-
U070
Display/hide of the travel of the last stitch can be set.
: Hide : Display
-
U074
The fan operation can be set.
: Energy saving mode : Constantly operates
-
U075
With/without air pressure detection
: Without air pressure detection
: With air pressure detection
- With air
pressure
detection
Displayed only for the
LK-1900BB/-1903BB
U076
Correction of thread waste retaining position
With this switch, the timing to start traveling from the thread
clamping position to the thread releasing/thread waste retaining
position can be changed.
−10 to 10
(In the range of
−344°to 64°in in-
crements of 4°)
0
U085
Thread tension value of the last stitch
Tension applied to the thread at the last stitch position is set at a
xed value
1 to 200
LK1900BB :30
Models other than
LK1900BB :0
U086
ON time of thread waste suction
Time to OFF from ON of thread waste suction nozzle / thread
waste suction
0 to 3000 ms 600 Displayed only for the
LK-1900BB/-1903BB
U087
ON time of thread waste suction nozzle
Time to OFF from ON of thread waste suction nozzle
0 to 1000 ms 600 Displayed only for the
LK-1900BB/-1903BB
U088
Number of stitches for releasing thread-waste
Length of time from thread trimming at the beginning of sewing
to releasing of the thread-waste remained
0 to 999
stitches
LK1900BB : 3
LK1903BB : 0
U089
Bird's nest suction time
Length of time during which bird's nest suction mechanism
operates
80 to 1000 ms 100 Displayed only for the
LK-1900BB/-1903BB
U090
Rest time to the start of suction of bird’s nest
Length of time from suction of shorter-thread remained after
thread trimming to suction of thread of bird's nest
80 to 500 ms 80 Displayed only for the
LK-1903BB
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