P20K2E7
7.4
7.2
Control System - Control Box
The control box is mechanically attached to the motor casing by means of two retaining straps. The
control system includes two fuses (800 mA slow-action), the power supply transformer, the circuit board
with power supply unit and the electronic control and data processing systems. This circuit board is
accommodated behind the cover closing the box at the front.
Power supply for the control system is derived from the motor terminal box.
The control system P20K2 comprises
sockets
X1
for control signals (outputs Ax for connection of solenoids, solenoid valves)
X7
for the speed control unit (command unit)
X8
for the clutch and brake
X9
for the synchronizer (position control unit)
X10
for an operator panel
selectors
WS1 for the needle position at sewing stop (down, up)
WS2 to WS5 not used
potentiometer
R1
for continuous reduction of the maximum machine speed preset by
parameter <607>.
rotary switch
DS
for programming the needle positions NPx
outputs (Ax) for connecting solenoids, solenoid valves, signal transmitters etc.
A1:
thread trimmer pneumatic
A2:
thread trimmer magnetic
140896
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