D - 1
D I A G R A M
D - 1
OPTIMARC
®
CV355P
Rev.01
STATUS
LED
R
G5964-65
A.01
_
26A
27
25A
+
OUTPUT CHOCK
L1
AC 220V
RECEPTACLE
SHUNT
600A 60mV
SWITCH
29
27
28
SWITCH
BOARD
5-
4+
L3
L2
L1
223
221
RECTIFIER
26
+
-
26
83
82
4
220C
221C
30 OHM
200 W
220B
221B
21
20
19
21A
29A
207
209
223
221
33
34
283
284
J21-1
J21-4
201
204
2
1
209
207
220A
J21-6
J27-1
J27-2
207
209
J23
-1
J23
-2
19
20
21
X2
X4
~1
~2
~3
+
-
+
-
H
L
FAN
U
N
B
G
INPUT
RECTIFIER
FUSE
2A/250V
U
V
W
CASE BACK
FRAME
W V U
L3
L2
L1
G1
X1
MAIN
TRANSFORMER
X4
1
2
X2
X3
OUTPUT
RECTIFIER
220A
1
2
~380V
6
7
AUXILIARY
TRANSFORMER
4
5 ~36V 3A
~220V 1A
20A
29
28
RECTIFIER
-
+
34
33
9
8
33
8
9
~36V 0.5A
258
265
91
92
93
J1-8
J5-1
J5-2
J5-3
J5-4
J5-5
J4-4
J4-3
J4-5
258
264
91
92
93
J2-5
J5-6
83
82
J6-3
J6-5
J6-2
J6-4
J6-1
28
3
28
4
265
264
WIRE SIZE
1.0
ARC CONTROL
J10-4
J10-5
J10-7
J10-6
J10-8
DISPLAY
BOARD
271
274
272
273
275
DATA
CLOCK
ENABLE
+15V
R
OT
O
M
DI
O
N
EL
OS
SA
G
2.
5K
10
K
GAS PU
RGE
C
O
LD
INC
H
RE
G
GI
RT
91
92
94
93
96
95
<1<
<2<
<3<
<4<
<5<
<6<
WIRE FEEDER
CONNECTOR
GSA/MOTOR
POT/SWITCH
+/-10V
+15V
+24V
+50V
BLAKE
19.5KHZ
DRIVE
S1
1 2 3 4 5 6 7 8
ON
CONTROL BOARD
xx
xx
xx
x
ST
L
OV
C
RA
K5
AR
C CUR
RENT
5K
K7.
4
266
266
+15V
J2-7
CRATER VOLTAGE
CRATER CURRENT
10 KOhm
10 KOhm
10 KOhm
J2-4
224
288
225
255
91
93
94
95
96
J7
-4
J7
-3
J7
-1
J7
-2
H
L
+50V
+15V
93B
93A
95A
95B
OPTIMARC CV355P WIRING SCHEMATIC
20C
POSITIVE
NEGATIVE
0.8
1.2
5P ROTARY SWITCH
J3-1
OPTIONAL
J3-3
J3-2
GMAW
293
292
291
293
292
291
FCAW-G
J3-7
296
296
J2-6
256
J2-9
259C
J2 0-13
J20-5
258
258
258
258
258
268
267
CLOSED= 4 STEP
257
J4-1
257
J4-2
257
260
261
CLOSED = CO2/Ar
J1-9
221A
220A
221A
J21-3
21A
20A
B
B
21B
20B
288
254A
256
259A
254A
256
259A
255
257
255
257
257
257
257
260
261
260
261
258
258
258
258
258
258
258
268
267
258
258
258
258
258
258
258
268
267
VIEW OF CONNECTOR ON PCB
ELECTRICAL SYMBOLS PER E1537
OHMS/WATTS
RESISTORS:
MFD/VOLTS
CAPACITORS:
8
LATCH
EXAMPLE: PIN 7 OF
CONNECTOR J5
3
2
LEAD COLORING CODE:
B-BLACK
2
1
8
G-GREEN
O-ORANGE
R-RED
CONNECTOR PIN
NUMBER:
7
14
U-BLUE
Y-YELLOW
W-WHITE
1
3
J5
N-BROWN
ALL COMPONENTS VIEWED FROM REAR.
FERRITE
BEAD
SPIKE
BLOCKER
G
1) ON
= PREFLOW
2) ON
= LONG CABLE WELD MODE
3) ON
= CRATER REPLS MODE
4) ON
= TEST MODE
5) ON
= SYNERGIC
6) ON
= FAST RUN-IN
7) ON
= 24VWIRE FEEDER APPLICATION
8) ON
= WIRE FEED SPEED CALIBRATION
THERMAL
LED
J2 0-12
J20-4
+15V
227
226
259B
254C
254B
J1-4
J1-5
xx
xx
xx
x
TH
ER
M
O
ST
AT
#2
228
225A
21A
20B
21B
COMPONENT
VALUE UNITE:
TH
ER
M
O
ST
AT
#1
FERRITE
BEAD
FERRITE
BEAD
SPIKE
BLOCKER
J3-4
PULSE(STEEL)
J3-5
295
294
295
294
PULSE(STAINLESS STEEL)
FUSE
8A/250V
26
25
J20-6
+15V
J20-14
232
231
25
OUTPUT
INPUT
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.
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 specific 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.