Wiring Diagram; Component Description - ESAB Arc 4000i Service Manual

WIRING DIAGRAM

The power source consists of a number of function modules, which are described in the
component descriptions on the following pages. Wire numbers and component names in
the wiring diagrams show to which module each component belongs.
Wires/cables within modules are marked 100 -- 6999.
Wires/cables between modules are marked 7000 -- 7999.
Components outside modules -- e.g. capacitors -- are named such as C1 -- C99,
connection (plug/socket) XS1 -- XS99 (S = sleeve), XP1 -- XP99 (P = pin) etc.
Circuit boards within each module have names such as 20AP1 -- 20AP99.
20 = module association, 1--69
AP = circuit board
1 = individual identification number, 0--99
Transistors within particular modules have identification numbers such as 15Q1 --
15Q99.
15 = module association, 1--69
Q = transistor
1 = individual identification number, 0--99
ESD

Component description

Component Description
AP1 Connection board for communication with the wire feed unit and remote
control device.
AP2 Interference suppressor board. See diagram on page 22.
AP3 CAN bus distribution board. Accessory, included in the MMC kit for the
MIG machines, see page 13.
C3 Capacitor, 100 nF 250 V.
C4 Capacitor, 100 nF 250 V.
D1 LED, orange, for overtemperature indication.
D2 LED, white. Indicates Power On.
XP.. Plug connectors.
XS.. Socket connectors.
cu19_00
CAUTION !
STATIC ELECTRICITY can damage circuit
boards and electronic components.
Observe precautions for handling electrostatic- -
S
sensitive devices.
Use proper static- -proof bags and boxes.
S
- - 10 - -
S0740 800 191/E080229/P78