Lincoln Electric IM481-B - Manual (Page 29)

POWER RECTIFIER BRIDGE
DIAGRAM 1 PLUG TO SNUBBER BOARD SHUNT P5 221 222 223 204 220 204 204 204 220 D1 D2 D3 SCR1 SCR2 SCR3 G1 G2 G3 D4 ANODE CATHODE ANODE CATHODE P3 Gate leads
plug to Control
P.C. board To T1 main
transformer To plug
P1 To (+) side
of capacitor
bank _ + X1 X2 X3 GATE _ +
POWER RECTIFIER BRIDGE
DIAGRAM 1
PLUG TO SNUBBER BOARD
SHUNT
P5
221 222
223
204
220
204
204
204
220
D1 D2 D3
SCR1 SCR2 SCR3
G1 G2 G3
D4
ANODE
CATHODE
ANODE
CATHODE
P3
Gate leads
plug to Control
P.C. board
To T1 main
transformer
To plug
P1
To (+) side
of capacitor
bank
_
+
X
1
X
2
X
3
GATE
_
+
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