ADJUSTMENT
AND
OPERATION
OF
CONTROL
UNIT
I 5 I Optionalfunctions
By
connecting
external
(optional)
control
signal to
the
option
connector,
and
setting
the
correspond
internal
DIP
switch,
various
optional
functions
can
be
used.
For
details,
consult
with
our
service
agency.
(1)
Internal
Dip
switches
(2)
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2
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12
3 4 5 6 7
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Internal
Switches
• For UDS, SoC, A, SH,
POS,
US, TB, CRH, P, IL,+1, SL, FL, BL, BM, S3L, FUM, ES,
S6,
K, D, PIT,VEL, S,
BR
functions,
refer
to
the
instruction
manual
LF-AMDF
control
box
functions.
• • S4L : High-speed operation signal (S4) inhibit switch
• •
S4/S2
: High-speed operation signal
S4/pedal
full heeling signal
output
select
switch
• • SH/CKD ; One-shot
signal/needle
DOWNposition output select switch
• •
S4/S3
: High-speed operation signal/pedal light heeling signal output select switch
• Functions for reverse operation of
sewing
machine
after
thread
trimming
• Rl : Reverse
operation
setting
switch
• • G :
Gain
switch
(to be
set
at
"ON")
Internal
variable
resistors
Model
LF-AMDF
is incorporated with time delay variable resistors, as shown in Fig.,which allow time
delay in
the
range from
0.05
to 1.5 seconds. These variable resistors
are
activated a predetermined period
oftime after
the
input of thread trimmer prioritystop PSUor DOWNpositoin prioritystop PSDwhich stops
the
sewing
machine
at UP or DOWN position after fabric
end
detection using a photolectric switch, etc.
These resistors
are
factory-set to full counterclockwise (minimum) position.
Variable
resistors
for
time
delay
PSU
PSD
WIOIW
L
DELAY
Operation
Internal
Variable
Resistors
-23-
Tojlf
Delay
time
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