Connecting The Cords - JUKI SC-921 Instruction Manual

3. 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.
Following connectors are prepared on the SC-921. Connect the connectors coming from the machine head
to the corresponding places so as to fit the devices mounted on the machine head.
❻

❶ CN30 Motor signal connector
❷ CN38 Operation panel: Various kinds of sewing
can be programmed. (For details of the
operation panel other than CP-18, refer to
the Instruction Manual for the panel to be
used.)
❸ CN33 Synchronizer : It detects the needle bar
position.
❹ CN37 Presser foot lifting solenoid (Only for the
automatic presser foot lifter type)
❺ CN48 Safety switch (standard) : When tilting the
sewing machine without turning the power
OFF, the operation of the sewing machine
is prohibited so as to protect against dan-
ger.
OPTION switch: Input function can be
changed by changing over the internal
function with this switch.
❶ ❺ ❷
 
❼  ❾
❻ CN42 Thread trimming safety switch
❼ CN39 Standing machine pedal : JUKI standard
PK70, etc. Sewing machine can be con-
trolled with external signals.
❽ CN58 +24 V external power source
❾ CN57 Simplified production control counter input
 CN36 Machine head solenoid: Provided with
solenoids for thread trimming, reverse
feed stitching, one-touch type reverse feed
switch.
 CN54 Material end detection sensor, etc.
 CN51 Optional function/device input/output.
 CN56 Optional function/device output (solenoid
valve output).
 CN34 Pedal sensor: The pedal sensor supplied
with the SC-921 is to be connected to this
connector to operate the sewing machine.
 CN62 Fan motor power supply (EU type only)
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❸ 
 ❹ ❽