- 7 -
7.
OTHER ELECTRONIC COMPONENT FUNCTIONS
Start/stop switch ............................... Used to start and stop machine operation. When starting, the embroidery
machine operates at low speed as long as the switch is pressed. The need
will stop in the up position if pressed immediately after the "Raise needle"
error message is displayed.
Touch panel ....................................... Used to enter the pattern selection and other sewing conditions. The touch
panel replaces the conventional switches, and makes pattern selection
possible by simply touching the panel.
Presser switch ................................... Detects whether the presser lever is up or down.
Rotation sensor ................................. Detects the drive timing of the embroidery frame drive pulse motor and the
tension release solenoid and detects the vertical position of the needle. Also
detects the turning angle of the upper shaft by means of a photointerruptor
and shutter installed on the upper shaft.
Speed sensor ..................................... Detects the operating speed of the main motor by means of a photointerruptor
and shutter installed on the upper shaft.
Bobbin winder switch ....................... Detects whether the bobbin winder has been set when starting bobbin
winding.
Transformer ....................................... Used for pulse motor and solenoid drive, sew light power and for the
electronic circuit power supply.
Work light ........................................... Uses an 8-V, 2.4-W bulb to illuminate the presser foot area.
Tension release solenoid ................. Opens the tension disc to prevent the needle thread from becoming
tangled when forming long crossover threads.
