5. Connecting to the connector of the SC-510
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.
* Two kinds of relay cords (connector change cord) are used.
Synchronizer
(Built-in synchronizer)
2
When front cover fixing screws A of SC-510 are loosened
and the cover is opened, the connectors described below
are prepared. Connect the machine head connectors to the
corresponding positions.
1
3
1
CN30 : Connect motor signal connector.
2
CN33 : Connect synchronizer.
3
CN36 : Connect intermediate latch and thread tension release solenoid valves.
4
CN37 : Connect presser lifter solenoid valve.
5
W4 : Jumper pin for material end sensor input/output power changeover
(Change to +12V. Refer to the next page.)
6
CN51 : Connect material end sensor.
7
CN39 : Connect when using foot pedal for standing work (PK-70 or the like).
34
Presser
lifter
solenoid
valve
Relay
cord
4
6
2
7
4
Material
end
Thread tension
sensor
release solenoid
valve
3
5
6
Intermediate
latch drive sole-
noid valve
Relay cord
Front cover
A
A