ESAB LKA 150, Руководство по обслуживанию

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− 4 −
clka0de1
COMPONENT DESCRIPTION, LKA 150
AP1 Circuit board with control electronics: see the diagram on page 6 and description
on page 7.
C1
Capacitor 0.1
µ
F, 400 VDC, transient protection.
C2
Capacitor 0.1 µ F, 400 VDC, transient protection.
L1
Inductor.
M1 Wire feeder motor.
QF1
Switch, 8 − way, for 7 − step and Off (main On/Off switch) adjustment of the welding
current.
For the Australian market the main On/Off part of the switch is 2 − pole.
SB1
Welding torch trigger switch.
ST1
Thermal overload cutout, for protection against overload, fitted in the winding of
main transformer TM1.
The switch operates (opens) at a temperature of 130
°
C.
ST2
Thermal overload cutout, for protection against overload, fitted on the diode bridge
cooling fins (VC1). It operates (breaks) at 110
°
C.
TM1 Main transformer
V1
LED, yellow.
Lights if thermal overload cutouts ST1 or ST2 operate as a result of high
temperature.
VC1
Diode bridge.
XS1 2 − pole connector.
XS2
5 − pole connector.
XS3 2 − pole connector.
XS4
Connector, 2 − pole.
XT1 Mains terminal block, 2 − pole.
XT2
Terminals, welding current, positive and negative