Mitsubishi LT2-250 - Option Connector and Reverse Stitching

ADJUSTMENT AND OPERATION OF CONTROL UNIT
(3) Option connector
Various external controls can be used by connecting external signal to the option connector.
For contacts necessary for input signal, use reliable one.
® (D
(5) (D
(§) (D
® (D
Clutch
© (D
Brake
Speed
LOW HIGH
Option
f®®)
®{D(D
@®(D
®(D(D
Synchr Option
onizer 1 Operation box
Presser foot
POSITION"
@®(D
®(0)®
•&
®
®®@
(g)(Q)®
Presser
Sewing
foot
machine
Power source
Option 1
HIglvspecd
opentMn
9
Low-speM
opeistnn
8
VeiiaMevoltage
7
Correction
sMcliinR
6
Needle lifting
S
Speed control
cotivnand
4
Tlvead trimming
3
MediuiThSpeed
oneratton
2
OV
1
OV 1
Pres^footUt
2
+ 30 V
3
Prespr loot tit
out^
4
Sewing machine
•0
ov
~© 1
External variable
resistor 10kf2
Toudiliackoutput
12
+ 30 V II
OV
10
Touchback itgnil
9
—
8
—
7
Thgid^uijigiiog
6
OV 5
Thread trimming
output
4
+ 30 V
3
Wiparoutput
2
GND
1
(4) Reverse stitching by touchback switch
Touchback switch (S7) is operative only while the sewing machine is in operation.
-25 -
Sewing
machine
body
From the library of: Superior Sewing Machine & Supply LLC