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D - 1
SWITCH
L1
L1
U
V
L2
L2
W
L3
L3
U
W V
INPUT
G1
CASE BACK
FRAME
TRANSFORMER
21B
21A
~380V
20A
20B
29A
29
26A
27
27
AC 220V
FUSE
RECEPTACLE
2A/250V
B
21B
B
B
FAN
N
U
G
20B
LEAD COLORING CODE:
COMPONENT
VALUE UNITE:
U-BLUE
B-BLACK
RESISTORS:
G-GREEN
W-WHITE
OHMS/W ATTS
O-ORANGE
Y-YELLOW
CAPACITORS:
R-RED
N-BROWN
MFD/VOLTS
CONNECTOR PIN
NUMBER:
EXAMPLE: PIN 7 OF
CONNECTOR J5
1
2
3
7
8
14
1
2
3
J5
LATCH
VIEW OF CONNECTOR ON PCB
ELECTRICAL SYMBOLS PER E1537
ALL COMPONENTS VIEWED FROM REAR.
NOTE: This diagram is for reference only. It may not be accurate for all machines coved by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels. If the diagram is illegible,
contact the Lincoln Electric Service Department for a replacement.
OPTIMARC CV500P WIRING SCHEMATIC
19
209
19
20
20
21
21
207
STATUS
20A
20C
INPUT
21A
21A
LED
RECTIFIER
THERMAL
LED
SWITCH
BOARD
232
J20-14
228
231
J20-6
227
J20-4
225A
226
J20-12
+15V
225
J20-13
AUXILIARY
224
J20-5
33
J21-1
34
J21-4
1
8
~36V 0.5A
220A
220A
J21-6
9
221A
J21-3
4
5 ~36V 3A
25
28
6
~220V 1A
2
7
29
33
33
RECTIFIER
+
-
8
9
34
25A
28
DISPLAY
BOARD
+15V
J10-7
ENABLE
J10-4
CLOCK
J10-5
DATA
J10-6
J10-8
WIRE FEEDER
CONNECTOR
<1<
91
<2<
92
<3<
93
93A
<4<
94
<5<
95A
95
<6<
96
8
D I A G R A M
MAIN
TRANSFORMER
RECTIFIER
SPIKE
209
207
BLOCKER
209
207
1
X1
+
-
X4
201
1
+15V
204
2
SPIKE
X2
BLOCKER
+15V
J27-1
223
2
X3
221
J27-2
FERRITE
FERRITE
+
-
BEAD
BEAD
284
283
FERRITE
BEAD
RECTIFIER
+
82
-
83
4
26
26
26
25
FUSE
8A/250V
+50V
CONTROL BOARD
271
J6-1
274
J6-4
S1
272
J6-2
273
J6-3
1 2 3 4 5 6 7 8
275
J6-5
ON
+50V
DRIVE
19.5KHZ
BLAKE
1) ON = PREFLOW
+24V
2) ON = LONG CABLE WELD MODE
91
91
J5-1
3) ON = CRATER REPLS MODE
4) ON = TEST MODE
92
92
J5-3
+15V
5) ON = SYNERGIC
6) ON = FAST RUN-IN
93B
93
93
J5-4
7) ON = 24VWIRE FEEDER APPLICATION
8) ON = WIRE FEED SPEED CALIBRATION
94
91
J5-5
+/-10V
95B
95
J5-6
POT/SWITCH
96
93
J5-2
GSA/MOTOR
PULSE(STEEL)
PULSE(STAINLESS STEEL)
R
®
OPTIMARC
CV500P
OUTPUT
OUTPUT CHOCK
L1
220C
220B
220A
G
221
223
221B
221C
X4
X2
SHUNT
221A
600A 60mV
J2-4
254A
254A
J2-6
288
256
288
256
256
J2-9
259A
259A
254B
259B
J2-7
257
257
255
254C
259C
255
255
J2-5
J1-8
260
260
260
CLOSED = CO2/Ar
J1-9
261
257
257
257
261
257
257
257
261
J1-4
J1-5
J4-1
268
268
258
258
258
258
258
258
258
268
258
258
258
258
258
258
258
258
258
258
258
258
258
258
CLOSED= 4 STEP
J4-2
267
267
267
+15V
264
1.6
J4-3
264
265
J4-4
265
1.2
J4-5
266
266
1.0
OPTIONAL
J3-1
291
291
FCAW-GS
J3-2
292
292
GMAW
J3-3
293
293
J3-7
296
296
J3-4
294
294
J3-5
295
295
D - 1
+
POSITIVE
OUTPUT
30 OHM
200 W
_
NEGATIVE
CRATER VOLTAGE
10 KOhm
ARC CONTROL
10 KOhm
CRATER CURRENT
10 KOhm
WIRE SIZE
5P ROTARY SWITCH
A.02
G5964-45
Rev.03
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