7. Connecting the cords
WARNING :
• To prevent personal injury caused by abrupt start of the sewing machine, carry out the work after
turning OFF the power switch and a lapse of 5 minutes or more.
• To prevent damage of device caused by maloperation and wrong specifications, be sure to
connect all the corresponding connectors to the specified places.
• To prevent personal injury caused by maloperation, be sure to lock the connector with lock.
• As for the details of handling respective devices, read carefully the Instruction Manuals supplied
with the devices before handling the devices.
❶ CN30
Motor signal connector
❷ CN38
Operation panel : Various kinds of sewing can be
programmed. (Refer to the Instruction Manual for
details.)
❸ CN33
Synchronizer : It detects the needle bar posi-
tion.
❹ CN37
Presser foot lifting solenoid (Only for the auto-
matic presser foot lifter type)
❺ CN48
Safety switch (standard) : When tilting the sew-
ing machine without turning the power OFF, the
operation of the sewing machine is prohibited so
as to protect against danger.
O P T I O N s w i t c h : I n p u t f u n c t i o n c a n b e
changed by changing over the internal function
with this switch.
❶
The following connectors are prepared in SC-920.
the connectors coming from the machine head to the
corresponding places so as to fit the devices mounted
on the machine head.
❻
❺
❶
❻ CN42
❼ CN39
❽ CN55
❾ CN57
CN36
CN54
CN34
Secure the wiring from the machine head with cable
clip band ❶ which is assembled onto the pedal
sensor.
– 5 –
❸
❷
❾
❼
Thread trimming safety switch
Standing machine pedal : JUKI standard
PK70, etc. Sewing machine can be controlled
with external signals.
+24 V external power source
Simplified production control counter input
Machine head solenoid: Provided with sole-
noids for thread trimming, reverse feed stitch-
ing, one-touch type reverse feed switch.
Material end detection sensor ED-5, etc.
Pedal sensor input
Connect
❹
❽