Lincoln Electric POWER WAVE 355M Service Manual page 41

Input
Input switch
Rectifier
115VAC Fan Supply
Auxiliary
P
{ Transformer
o
220 VAC
w
e
r
40VDC
W
a
v
e
42VAC
4
220
0
5
Receptacle
o
n DC
l
Bus
y
Board
Main Switch Board
Primary
Current
Sensor
Reconnect
Switch
Primary
Current
Sensor
Fan
Primary Current Feedback(2)
Input Relay Control
Soft Start Control
V/F Capacitor Feedback (2)
Machine Control Supply
+15VDC, -15VDC, +5VDC
Power
Board
RS232 Supply +5VDC
Can Supply +5VDC
Arc
Link
40VDC
To Control
Board
Choke
Control Board
Electrode
Sense
21 Lead
Wire
Voltage
Feeder
Sense
Recp.
Recp.
Thermostats
2
To
Feeder
Positive
Output
Terminal
Negative
Output
Terminal
Yellow
Thermal
LED
Status
Red/Green
LED
R232
Connector