ESAB LTR 160, Service Manual

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cltr0de1
V03,V04
Rectifier and freewheel diodes.
V03 rectifies the welding current. During the time interval between two
voltage pulses from transformer TC02, the freewheel diode V04 maintain
the welding current from inductor L01.
On the cooling fins in the LTR 160 is one diode module mounted and in the
LTR 200 there are two. Each diode module has two diodes. For
installation instructions, see page 36.
V05
LED, yellow. Lights when thermal switch ST01 operates (breaks) as a
result of high temperature.
X01 -- X02 Terminal block.
XP01
Pin connector with jumper. Connected when the machine is used without
water cooler.
XS . .
Sleeve connectors.
Note:
the connectors XS01, XS02, XS03, XS05 and XS06 has changed
design. Valid for LTR 160 from serial number 842--xxx--xxxx and for
LTR 200 from serial number 842--902--xxxx.
The sleeve numbering is reversed compared to the earlier version. The
wire numbering and the numbering of the contact pins of the circuit board
is not changed, compare the diagrams on page 10 and 12.
The ordering numbers for the connectors are listed under item 303 in the
spare parts list.
XS10
12--pole Burndy contact, for connection of remote control unit.
XS11 TIG central connector: only LTR model --880 and --882.
XS12
2--pole Cannon connector, only LTR model --881 and --883.
XS13
Welding current connector, OKC, only LTR model --881 and --883.
XS14 Welding current terminals, (two), OKC type.
XS24
Connection for 400V to water cooler. (The water cooler is an accessory,
which is mounted under the machine.)
XS25
Connection for water flow guard.
YV01
Solenoid valve