445
Repairing the knitting machine 7
Eliminating faults in electronics system
Power supply unit
7.4.3 Power supply unit
Power supply unit
Power supply unit
The LEDs on the power supply unit indicate which voltages are generated and
at which voltage an error occurs. While switching on the main switch, the lower
three LEDs light up immediately, and the +28 V approx. 1 second later,
followed by the +40 V. The order in which the LEDs light up when switching on
may provide information on fault causes.
Control of yarn carrier magnets
7.4.4 Control of yarn carrier magnets
Each knitting system has got an electronic board (1) for controlling yarn carrier
magnets.
Electronic cards for controll ing yarn carrier magnets
Electronic cards for controlling yarn carrier magnets
Electronic cards
Electronic cards
Card
Function
960
(ID 300 960)
Activating of the yarn carrier magnets after the
time for switching the yarn carrier magnets has
been announced by the board 966.
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