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D - 1
SWITCH
L1
L1
U
L2
V
L2
L3
W
L3
W
V
U
INPUT
21A
21A
G1
CASE BACK
FRAME
TRANSFORMER
21B
21A
1
~380V
20A
2
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:
B-BLACK
U-BLUE
RESISTORS:
G-GREEN
W -W HITE
OHMS/WATTS
O-ORANGE
Y-YELLOW
CAPACITORS:
R-RED
N-BROW N
MFD/VOLTS
CONNECTOR PIN
NUMBER:
EXAMPLE: PIN 7 OF
1
2
3
7
CONNECTOR J5
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 diag ram is illegible,
contact the Lincoln Electric Service Department for a replacement.
The product performance data of this brochure and related attachments are from LINCOLN ELECTRIC application engineering laboratory.
Except for special instructions, experiments on welding machines are conducted in accordance with the general standard of IEC60974-1; experiments on welding consumables are conducted in accordance with the general standard of AWS; for speci c applicable standards on welding consumables please refer to the product page.
The product performance data of this website and related attachments are from LINCOLN ELECTRIC American application engineering laboratory.
OPTIMARC CV355P WIRING SCHEMATIC
19
209
19
20
20
21
21
207
STATUS
20A
INPUT
20C
LED
RECTIFIER
THERMAL
SWITCH
LED
BOARD
+15V
232
J20-14
228
231
J20-6
+15V
227
J20-4
225A
226
J2 0-12
+15V
225
AUXILIARY
J2 0-13
224
J20-5
33
+
J21-1
-
34
J21-4
8
~36V 0.5A
220A
220A
J21-6
9
221A
J21-3
4
~36V 3A
5
25
28
6
~220V 1A
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<
93A
93
<4<
94
95A
<5<
95
<6<
96
8
D I A G R A M
MAIN
OUTPUT
TRANSFORMER
RECTIFIER
SPIKE
209
207
BLOCKER
209
207
1
X1
+
-
X4
201
1
2
204
SPIKE
X2
BLOCKER
223
J27-1
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 W ELD MODE
91
J5-1
91
3) ON = CRATER REPLS MODE
4) ON = TEST MODE
92
92
J5-3
5) ON = SYNERGIC
+15V
6) ON = FAST RUN-IN
93B
7) ON = 24VW IRE FEEDER APPLICATION
93
93
J5-4
8) ON = W IRE FEED SPEED CALIBRATION
94
J5-5
+/-10V
91
95B
J5-6
95
POT/SW ITCH
93
96
J5-2
OPTIONAL
GSA/MOTOR
FCAW -G
GMAW
PULSE(STEEL)
PULSE(STAINLESS STEEL)
R
OPTIMARC
®
CV355P
OUTPUT CHOCK
L1
220C
220B
220A
30 OHM
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
J2-5
255
255
J1-8
260
260
260
CLOSED = CO2/Ar
J1-9
261
261
257
257
261
257
257
257
257
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
J4-3
264
264
1.2
J4-4
265
265
1.0
J4-5
266
266
0.8
J3-1
291
291
J3-2
292
292
J3-3
293
293
J3-7
296
296
J3-4
294
294
J3-5
295
295
D - 1
+
POSITIVE
OUTPUT
200 W
_
NEGATIVE
CRATER VOLTAGE
10 KOhm
ARC CONTROL
10 KOhm
CRATER CURRENT
10 KOhm
WIRE SIZE
5P ROTARY SWITCH
A.01
G5964-65
Rev.01
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