ESAB Origo Mig L3000i Service Manual page 12

4 WIRING DIAGRAM
10C1, 10C2 Interference suppression capacitors.
10EV1 Fan, 24 V DC. See the description of 20AP1:2 in "20AP1:2 Fan control",
page 56.
10TV1 HF transformer. See HF generator in "10AP1:4 HF generator", page 27.
10L1 Ferrite ring core.
10YV1 Gas valve. See "10AP1:3 Gas valve", page 27.
13 Wire feeder module. Wire numbers 1300-1499.
13AP1 Wire feeder controller circuit board. See the description in "13AP1 Wire
feeder control board", page 28.
13C5 Interference suppression capacitor.
13G1 Pulse generator. Incorporated in motor 13M1.
See the description in "13AP1:5 Pulse generator input", page 31.
13L1, 13L2 Ferrite ring cores.
13M1 Motor with pulse generator.
13YV1 Solenoid valve. See the description in "13AP1:3 Gas valve", page 30.
15 Power module. Wire numbers 1500-1699. See the schematic diagram
and description in "15 The power module", page 34.
15AP1 Power board. See the description in "15AP1 Power board", page 34.
15AP2 Filter board with rectifier modules. See the description in "15AP2
Secondary board", page 41.
15AP3 Current sensor. See the description in "20AP1:8 Current sensor", page
61.
15C1, 15C2 Smoothing capacitors.
15D1, 15D2 Rectifier and freewheel diode modules. Each module consists of two
diodes.
During the time interval between the voltage pulses from transformers
15TM1 and 15TM2, the freewheel diodes maintain the welding current
from inductor 15L3.
See "Mounting components on the heat sink", page 95 for assembly
instructions for the diode modules.
15D3, 15D4, Transient voltage suppressors, only fitted to the Tig 3000i AC/DC.
15D5
The suppressors must always be fitted, otherwise the diode modules 15D1
and 15D2 will be damaged when AC welding is active.
15EV1, 15EV2 Fans, 24 V DC. See the description in "20AP1:2 Fan control", page 56.
15L3 Inductor.
15TM1, 15TM2 Main transformers.
18 AC module. Wire numbers 1800-1999.
18AP1 AC control board. See the description in "18AP1 AC control board", page
44.
18AP2 AC power board. See the description in "18AP2 AC power board", page
51.
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