Lincoln Electric OPTIMARC CV505P User manual

Rev. 06
IM7029-1
Sep, 2022
Rev. 06
OPTIMARC®CV505P
For use with machine Part Number K60139-1, Code 76391
•World’s Leader in Welding and Cutting•
THE SHANGHAI LINCOLN ELECTRIC COMPANY
No. 195, Lane 5008, Hu Tai Rd. Baoshan, Shanghai, PRC 201907
www.lincolnelectric.com.cn
Copyright © 2020 The Shanghai Lincoln Electric Company
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation and thoughtful
operation on you part. DO NOT
INSTALL, OPERATE OR REPAIR
THIS EQUIPMENT WITHOUT
READING THIS MANUAL AND
THE SAFETY PRECAUTIONS
CONTAINED THROUGHOUT.
And, most importantly, think before
you act and be careful.

Rev. 06
Thank you for selecting QUALITY Lincoln Electric products.
Please examine the packaging and equipment for damage. Claims for material damaged in shipment must be
notified immediately to the authorized dealer from whom you purchased the machine.
For future reference,please record your equipment identification information in the table below. Model Name,
Code & Serial Number can be found on the machine rating plate.
Model Name
□OPTIMARC®CV505P
Code & Serial number
Date & Where Purchased
Authorized dealer’s shop
Declaration of conformity
THE SHANGHAI LINCOLN ELECTRIC COMPANY
Designed in conformance with the following norm:
GB/T 15579.1-2013
IEC 60974-1: 2013
THE SHANGHAI LINCOLN ELECTRIC COMPANY
No. 195, Lane 5008, Hu Tai Rd. Baoshan, Shanghai, PRC 201907

iSAFETY i
OPTIMARC®CV505P
Rev.06

ii SAFETY ii
OPTIMARC®CV505P
Rev.06

iii SAFETY iii
OPTIMARC®CV505P
Rev.06

A-1 INSTALLATION A-1
OPTIMARC®CV505P
Rev.06
TECHNICAL SPECIFICATIONS –OPTIMARC®CV505P
INPUT –THREE PHASE ONLY
OPTIMARC®CV505P
Standard Voltage/Phase/Frequency
380V ~ 415V(±10%)/3/50 or 60 Hz
Input Power at Rated Output
23kVA @ 60% Duty Cycle
RATED OUTPUT –DC ONLY
OPTIMARC®CV505P
Duty Cycle
60%
100%
Amperes
500A
390A
Volts at Rated Amperes
39V
33.5V
OUTPUT
OPTIMARC®CV505P
Welding Current Range
50A ~ 500A
Open Circuit Voltage
60V
Welding Voltage Range
16 V ~ 39V
RECOMMENDED INPUT WIRE AND FUSE SIZES
OPTIMARC®CV505P
Input
Voltage/
Frequency
(Hz)
342V ~
456.5V/
50Hz or
60Hz
Maximum
Input
Ampere
39A
Maximum
Effective
Supply
Current
30A
60°C Copper
Wire in
Conduct
Sizes
12mm2
Fuse or
Breaker Size
(Super Lag)
60A
Grounding
Conductor
Size
10mm2
PHYSICAL DIMENSIONS
OPTIMARC®CV505P
Height
540mm
Width
340mm
Depth
800mm
Weight
47Kg
Temperature Range
Operating Temperature Range
-10°C ~ +40°C
Storage Temperature Range
-25°C ~ +55°C
For any maintenance or repair operation it is recommended to contact the nearest technical service center or directly
consult machine division of the Shanghai Lincoln Electric. Maintenance or repairs performed by unauthorized service
center or personnel will void the manufacturer’s warranty.

A-2INSTALLATION A-2
OPTIMARC®CV505P
Rev.06
SAFETY PRECAUTIONS
Read the entire installation section before starting
installation.
ELECTRIC SHOCK can kill.
Only qualified personnel
should perform this
installation.
Turn the input power OFF at
the main switch or fuse box
before working on this equipment. Turn off the
input power to any other equipment connected to
the welding system at the main switch or fuse
box before working on the equipment.
Do not touch electrically “Hot”parts.
Always connect the OPTIMARC®grounding lug
(located at the rear of the case) to a proper safety
(Earth) ground.
SELECT SUITABLE LOCATION
This power source should not be subjected to falling
water, nor should any parts of it be submerged in water.
Doing so may cause improper operation as well as
pose a safety hazard. The best practice is to keep the
machine in a dry, sheltered area.
The bottom of machine must always be placed on a
firm, secure, level surface. There is a danger of the
machine toppling over if this precaution is not
taken.
Place the welder where clean cooling air can freely
circulate in through the back louvers and out through
the case sides. Water,dirt, dust or any foreign material
that can be drawn into the welder should be kept to a
minimum. Failure to observe these precautions can
result in excessive operating temperatures and
nuisance shutdowns.
Locate the OPTIMARC®machine away from radio
controlled machinery. Normal operation of the welder
may adversely affect the operation of RF controlled
equipment, which may result in bodily injury or damage
to the equipment.
STACKING
The OPTIMARC®machine can not be stacked. Be
sure to locate the machines on a firm level surface.
LIFTING
The OPTIMARC®machine can be moved using the
handles .
INPUT POWER AND GROUNDING
CONNECTION
Only a qualified electrician should connect the
input leads to the OPTIMARC®. Connections
should be made in accordance with the connection
diagram. Failure to do so may result in bodily injury
or death.
Open the input box on the rear of the case. Use a
three-phase supply line, the three live wires should go
through the three holes of the input wire holder and be
securely clamped and fixed. Connect L1, L2, L3 and
ground according to the Input Supply Connection
Diagram decal, refer to Figure A.1 on this page.
Make sure the amount of power available from the input
connection is adequate for normal operation of the
machine. Refer to the Technical Specifications at the
beginning of this Installation section for recommended
fuse and wire sizes.
WARNING
CAUTION
WARNING
FIGURE A.1

A-3INSTALLATION A-3
OPTIMARC®CV505P
Rev.06
PROCESS SELECTIONS AND
CONNECTIONS
ELECTRIC SHOCK can kill.
Only qualified personnel
should perform this
installation.
Turn the input power OFF at
the main switch or fuse box before working on
this equipment. Turn off the input power to any
other equipment connected to the welding
system at the main switch or fuse box before
working on the equipment.
Do not touch electrically “Hot”parts.
Always connect the OPTIMARC®grounding lug
(located at the rear of the case) to a proper safety
(Earth) ground.
Work Connection
Connect a work lead of sufficient size between the
proper output stud on the power source and the work.
Be sure the connection to the work makes tight metal to
metal electrical contact. Poor work lead connections
can result in poor welding performance.
To avoid interference problems with other equipment
and to achieve the best possible operation, route all
cables directly to the work and wire feeder. Avoid
excessive lengths and do not coil excess cable.
Cable sizes are increased for greater lengths primarily
for the purpose of minimizing cable drop.
Minimum work and electrode cable sizes are as follows:
TABLE A.1
Current (60% Duty Cycle)
Minimum Copper
Work Cable Size
200A
300A
400A
500A
Up To 30m Length
30 mm2
50 mm2
70 mm2
95 mm2
Note: The recommended cable size may need to
change depending on its quality. When the rated
current flow goes through, the total voltage drop on
ground cable and electrode cable must not exceed 4
volts.
LWF-32GS/34GS wire feeder connection
( FIGURE A.2 ).
Set the rotary switch to FCAW-G,GMAW,Pulse(steel),
Pulse(stainless) mode.
FCAW-G/GMAW modes, use 82%Ar、18%CO2 or
100%CO2 gas；Pulse(steel) modes,use 82%Ar、
18%CO2 gas.
Pulse(stainless) modes. use 98%Ar、2%CO2 gas.
WARNING
FIGURE A.2

A-4 INSTALLATION A-4
OPTIMARC®CV505P
Rev.06
Turn the OPTIMARC®CV machine’s power switch
“OFF”.
Connect the control cable from the LWF-32GS/34GS
wire feeder to the 6-pin connector.
Connect the electrode cable.
Note: GMAW or FCAW-G, electrode cable should be
connected to positive output stud;
For secure electrical connection, the screws
connecting the output terminals and cables must
be tightened. Damage may occur to the output stud
or welding performance maybe compromised.
6-pin connector instruction
Please see FIGURE A.3 and TABLE A.2 for more
details.
CAUTION
FIGURE A.3
TABLE A.2
Power Source
Wire Feeder
Pin
Function
Lead #
Pin
Function
Lead #
1
“ + ” pulse signal for motor control.
91
1
Positive terminal of motor.
91
2
“ + ” pulse signal for gas solenoid.
92
2
Connected to one lead of gas
solenoid.
92
3
“ + ” control signal for gas purge, cold
inch and trigger.
93
3
Control signals output ( gas purge,
cold inch and trigger ).
93
4
+/- 10V control signal for arc current
and arc voltage.
94
4
Control signals output (arc current
and arc voltage ).
94
5
GND for arc current, arc voltage, gas
purge, cold inch and trigger control.
95
5
Common GND.
95
6
GND for gas solenoid and motor
control.
96
6
Negative terminal of motor; and
connected to another lead of gas
solenoid.
96

A-5 INSTALLATION A-5
OPTIMARC®CV505P
Rev.06
SAFETY PRECAUTIONS
Read this entire section of operating
instructions before operating the machine.
ELECTRIC SHOCK can kill.
Do not touch electrically live
parts or electrode with skin or
wet clothing.
Insulate yourself from work
and ground.
Always wear dry insulating gloves.
FUMES AND GASES can be
dangerous.
Keep your head out of fumes.
Use ventilation or exhaust to
remove fumes from breathing
zone.
WELDING SPARKS can cause
fire or explosion.
Keep flammable material
away.
Do not weld on closed
containers.
ARC RAYS can burn eyes and
skin.
Wear eye, ear and body
protection.
PLEASE SEE ADDITIONAL WARNING
INFORMATION AT THE FRONT OF THIS
OPERATOR’S MANUAL.
DUTY CYCLE
The duty cycle of a welding machine is the percentage
of time in a 10 minute cycle at which the welder can
operate the machine at rated welding current.
60% duty cycle:
Weld for 6 minutes
Break for 4 minutes
Excessive extension of the duty cycle will cause the
thermal protection circuit to activate.
THERMAL PROTECTION
The OPTIMARC®machine is equipped with a thermal
protection device. When the machine has gone into
thermal overload, the output will be turned off and the
thermal indicator light will be turned “ON“. When the
machine has cooled to a safe temperature, the Thermal
Indicator Light will go out and the machine may resume
normal operation.
Note: For safety reasons the machine’s welding output
will not come on after a thermal shutdown until the
output is disabled and re-enabled.
Automatic fan start and stop function
OPTIMARC® has Fan As Need function. When the
output of welding machine is active, the fan will work
automatically. When the welding output stop, fan will
stop automatically after a period of delay time. The
delay time can be adjusted from 2 to 5 minutes. The
default delay time is maximum.
Note: Reducing the delay time may trigger the
overheating alarm.
WARNING

B-1OPERATION B-1
OPTIMARC®CV505P
Rev.06
OPERATIONAL FEATURES AND
CONTROLS
FRONT PANEL (SEE FIGURE B.1)
1. GAS SELECTION
OPTIMARC®CV505P is designed for CO2 and
ArCO2.
2. WIRE DIAMETER SELECTION
OPTIMARC®CV505P is designed for Φ1.0, Φ1.2 and
Φ 1.6 wires.
3. WELDING MODE SELECTION
OPTIMARC®CV505P includes 4 available modes and
one optional mode for customer’s special requirement:
OPTIONAL.
The default is FCAW-S.
FCAW-G.
It is for gas shielded flux cored wire arc welding.
GMAW.
It is for gas shielded solid wire arc welding.
PULSE(steel)
Machine set up see figure A.2.
PULSE(stainless steel)
Machine set up see figure A.2.
4. ON/OFF POWER SWITCH
Switch up to power on; Switch down to power of.
5. THERMAL INDICATOR
This status light illuminates when the power source has
been driven into thermal overload. The indicator light
also momentarily turns on during start up.
6. 2-STEP AND 4-STEP SELECTION
This toggle switch enables the selection of 2-STEP or
4-STEP operation mode without or with crater
function. 2-STEP mode - no crater output after user
release the trigger. 4-STEP mode –crater function
initiates when uses “Clicks”trigger again after
releasing it. Please see FIGURE B.3 and B.4 to know
the more details of time sequence of OPTIMARC®
CV 505P.
7. DIGITAL INDICATION VOLTAGE METER
This meter displays the preset voltage before a weld
and the actual voltage during a weld . The actual
voltage is displayed for 5 seconds after a weld ends.
During this time the display flash.
8. SYNERGIC
This status light illuminates when the power source is
set for synergic operation. Synergic operation is
controlled by DIP switch 5 on the control board. See
the DIP switch section for additional information.
9. CRATER VOLTAGE
This knob sets the value of output voltage during the
crater time.
1
2
3
4
516
7
10
12
11
9
6
8
13 14
15
FIGURE B.1
10. DIGITAL INDICATION CURRENT METER
This meter displays the preset current before a weld and
theactual welding current during a weld. The actual
current is displayed for 5 seconds after a weld ends.
During this time the display falsh.
11. CRATER CURRENT
This knob sets the value of output current (wire feeding
speed) during the crater time.
12. ARC CONTROL
This knob control the arc output characteristic. When it is
turned clockwise, the arc is crisper. When it turned
counter clockwise,the arc is softer.
13. NEGATIVE OUTPUT STUD
14. POSITIVE OUTPUT STUD
15. 6-PIN LWF WIRE FEEDER CONNECTOR
Please see the FIGURE A.4 for the details of the
connection.
16. STATUS INDICATOR
The status light will be green for normal operation;
while the status light will flash in red with a serial of
error digital codes as power source gets in some
trouble. The status light will always have
synchronization with the LED3 on switchboard inside
machine.

B-2OPERATION B-2
OPTIMARC®CV505P
Rev.06
REAR PANEL (PLEASE SEE FIGURE B.2).
17. INPUT CABLE HOLDING BRACKET
This bracket securely holds the three phase power cables
in place.
17
18 19 20 21
22
FIGURE B.2
18. INPUT BOX
This insulation box is used to cover the input
connections.
19. GROUND LEAD CONNECTION
Connect the ground lead to the paint-free location on
the case back by securing its lug-end with the screw
into the case hole.
This insulation box must be secure before turning on
the main power supply.
20. AUX. VOLTAGE RECEPTACLE
Export type machine: This is a 220V 200W max.
auxiliary power output socket, for plugging gas heater.
Only Plug the correct gas heater into this receptacle.
DO NOT plug other electric devices into the
receptacle, otherwise damage may occure to the
OPTIMARC®machine.
21. FUSE AND FUSE HOLDER
Export type machine: 250V 2A fuse is used to protect
the auxiliary 220V power outlet.
22. FUSE AND FUSE HOLDER
250V 8A fuse is used to protect the auxiliary power for
the wire feeder.
WARNING
CAUTION

B-3OPERATION B-3
OPTIMARC®CV505P
Rev.06
Trigger Open
Closed
Open
Closed
Shielding Gas
Preflow Time
Welding Voltage
OCV
Wire Feeder Speed Run-in
Welding Current
Burn Back
Burn Back
FIGURE B.3
Trigger Open
Closed
Open
Closed
Shielding Gas
Preflow Time
Welding Voltage
OCV
Wire Feeder Speed Run-in
Welding Current
Burn Back
Burn Back
Crater Voltage
Crater Current
Crater Status
Crater Status
FIGURE B.4
Trigger Open
Closed
Open
Closed
Shielded Gas
Preflow Time
Welding Voltage
OCV
Wire Feeder Speed Run-in
Welding Current
Burn Back
Within 2 seconds
Crater Voltage
Crater Current
Crater Status
Crater Status
Crater
Current
Burn Back
Crater
Voltage
Open
Closed
Repeat Crater Status
FIGURE B.5

B-4OPERATION B-4
OPTIMARC®CV505P
Rev.06
DIP SWITCH DESCRIPTIONS
OPTIMARC®machine offers a DIP switch on the
control board, which allows user to have additional
features. After disconnecting the machine from input
power remove the roof To set the DIP switch。
Disconnecting the machine，
before the roof removed.
See FIGURE B.7 for the right position.
There are 8 individual switches integrated into this
DIP switch . Please see FIGURE B.6.
1. PREFLOW ON/OFF SWITCH
This switch enables preflow before turning on output
voltage. Please see FIGURE B.3 for detail.
2. LONG CABLE WELD MODE SWITCH
OFF = welding with a cable length less than 20M.
ON = welding with a cable length more than 20M
(including 20M).
3. CRATER REPEAT MODE SWITCH
Should the operator find a visible crater appearing
after releasing the trigger, and within 2 seconds,
activating the trigger again the power source will
continue output at crater voltage and current to fill this
crater. For more details, please see FIGURE B.5.
4. SPECIAL FUNCTION TEST
It enables a test procedure to test the control knobs
and the toggle switches, when the DIP switch 4 is ON
and the other DIP switches are OFF. The DIP switch
should be OFF when user prepares to weld.
5. SYNERGIC
OFF = Amps and volts knobs on feeder are
independent adjustment.
ON = Voltage is tied to the preset of the amps knob.
(Default setting)
See operation feature item 8
Synergic mode operation guide
Set the voltage pot:
Adjust the voltage potentiometer knob on the wire feeder
at Synergic point.
Set voltage pot at SYN point, welding voltage is the
default value programed in OPTIMARC. That is help
operator set welding parameters quickly. But it maybe
require operator make small adjustments to get better
welding performance.
Set current pot:
Adjust the current potentiometer knob on the wire feeder
to set welding current.
When adjusting the output current, the output voltage
value change automatically with the output current value;
Other setting of welding system:
Ensure proper installation of welding circuit;
Ensure proper selection of welding procedure, welding
gas, welding material, welding base material and welding
polarity;
Ensure the Arc Control on the front panel of the Optimarc
welding machine is initially set to "0";
Fine tuning the output voltage based on actual
welding arc performance:
During welding, and within reasonable ESO.
If the arc is too crisp/ excessive spatter generated with
arc is unstable/ or more arc shortage is observed even
the wire goes into puddle and it is pushed back can be
felt , it indicates that the voltage is too low, a
necessary adjustment with clockwise offset from
nominal set point is suggested
If the arc is too soft/ the arc pinch and force is too low/
welding droplet size is getting big/ big spatter will be
produced, sounds like the wire feeding is too lower, it
indicates that the voltage is high, a necessary
adjustment with counterclockwise offset from nominal
set point is suggested
Note :ESO is usually 10-15 times the diameter of the
wire.
.
6. FAST RUN-IN
OFF = run-in is 35% of weld set wire feed speed
(limited by the absolute wire feed speed minimum set
in the parameter file)
ON = run-in is 75% of weld set wire feed speed
(limited by the absolute wire feed speed minimum set
in the parameter file) (Default setting)
7. FEEDER APPLICATION
OFF = 18.3V wire feeder application.
ON = 24V wire feeder application. (Default setting)
8. WIRE FEEDER SPEED CALIBRATION
WARNING

B-5OPERATION B-5
OPTIMARC®CV505P
Rev.06
FIGURE B.6
FIGURE B.6
FIGURE B.7
DIP switch

C-1TROUBLESHOOTING C-1
OPTIMARC®CV505P
Rev.06
CAUTION
If for any reason you do not understand the test procedures or are unable to
perform the tests/repairs safely, contact your local authorized Lincoln Electric
Field Service Facility for technical assistance.
Observe all Safety Guidelines detailed in the beginning and throughout this manual.
Problems (Symptoms)
Possible Areas of Misadjustment(s)
Recommended Course of Action
Output Problems
Major physical or electrical
damage is evident when
the sheet metal covers are
removed.
None
Contact your local
authorized Lincoln Electric
Field Service facility for
technical assistance.
Machine will not power up
(no lights, no fan, etc.)
1. Make certain that the power to the
machine is energized and is within the
machine’s operating range.
In a typical installation the
main power switch on the
controller is the power
switch.
Thermal LED is lit.
1. Check for proper fan operation. (Fan
should run whenever output power is
on.) Check for material blocking intake
or exhaust louvers, or for excessive dirt
clogging cooling channels in machine.
2. Machine may have been operated
above it’s duty cycle..
Clear obstruction or repair
fan
After machine has cooled,
reduce load, duty cycle, or
both
Machine won’t weld, can’t get
any output.
1. Input voltage is too low or too high. Make
certain that input voltage is proper,
according to the Rating Plate.
2. If the Thermal LED is also lit, see
Thermal LED is Lit section.
3. If an error code is also present.
Contact your local
authorized Lincoln Electric
Field Service facility for
technical assistance.
Machine won’t produce full
output.
1. Input voltage may be too low, limiting
output capability of the power source.
Make certain that the input voltage is
proper, according to the Rating Plate.
2. Secondary current or voltage is not
properly calibrated.
Correct input voltage level.
Contact your local
authorized Lincoln Electric
Field Service facility for
technical assistance.
Machine often “noodle”
welds (output is limited to
approximately 100 amps)
Secondary current limit has been
exceeded, and the machine has phased
back to protect itself.
Adjust procedure or reduce load
to lower current draw from the
machine.
General degradation of the
weld performance
1. Check for feeding problems, bad
connections, excessive loops in
cabling, etc.
2. Verify weld mode is correct for
processes.
3. The power source may require
calibration.
If the machine need calibration,
contact an authorized Lincoln
Electric Service facility for
technical assistance.
The 4-step mode is not
available
1. Verify the CRATER ON/OFF toggle switch
on the front panel of machine is at ON
position.
2. Verify the parameter of crater current and
voltage are set properly.
3. PC board in machine possibily at fault.
If PC board in machine is at
fault, contact an authorized
Lincoln Electric Service facility
for technical assistance.
The welding arc is not stable
and soft.
1. Verify the proper polarity is being used for
the weld procedure.
2. Check all electrode and work connections.
3. Verify the parameters of wire feeding speed,
output voltage and shielding gas are proper
for the welding procedure.
If PC board in machine is at
fault, contact an authorized
Lincoln Electric Service facility
for technical assistance.

C-2TROUBLESHOOTING C-2
OPTIMARC®CV505P
Rev.06
CAUTION
If for any reason you do not understand the test procedures or are unable to
perform the tests/repairs safely, contact your local authorized Lincoln Electric
Field Service Facility for technical assistance.
Observe all Safety Guidelines detailed in the beginning and throughout this manual.
Problems (Symptoms)
Possible Areas of Misadjustment(s)
Recommended Course of Action
4. PC board in machine possibily at fault.
Starting arc is difficult.
1. Verify the proper polarity is being used for
the weld procedure.
2. Check all electrode and work connections.
3. Verify the parameters of wire feeding speed,
output voltage and shielding gas are proper
for the welding procedure.
4. PC board in machine possibily at fault.
If PC board in machine is at
fault, contact an authorized
Lincoln Electric Service facility
for technical assistance.
The meter displays ERR 031
Primary over current from switchboard.
Contact your local
authorized Lincoln Electric
Field Service facility for
technical assistance.
The meter displays ERR 032
Low input line voltage error from control board.
Contact your local
authorized Lincoln Electric
Field Service facility for
technical assistance.
The meter displays ERR 035
Input voltage out of range.
Make certain that input
voltage is proper, according
to the Rating Plate.
The meter displays ERR 036
Thermostat Trip.
Contact your local
authorized Lincoln Electric
Field Service facility for
technical assistance.
The meter displays ERR 041
Secondary over currrent from switchboard
Contact your local
authorized Lincoln Electric
Field Service facility for
technical assistance.
The meter displays ERR 082
Motor overload.
Please reduce the welding duty
cycle of machine.
The meter displays ERR 124
Invalid weld mode.
Please check if all the welding
procedures are correct.
The meter displays ERR 213
CAN communication error.
Contact your local
authorized Lincoln Electric
Field Service facility for
technical assistance.

D - 1 D IAG R AM D - 1
OPTIMARC®CV505P
Rev.06
STATUS
LED
R
G5964-54
A.03
_
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
220A J21-6
J27-1
J27-2
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
WVU
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
98
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
283
284
265
264 WIRE SIZE1.2
ARC CONTROL
J10-4
J10-5
J10-7
J10-6
J10-8
DISPLAY
BOARD
271
274
272
273
275
DATA
CLOCK
ENABLE
+15V
MOTOR
GAS SOLENOID
2.5K
10K
GAS
PURGE
COLD
INCH
TRIGGER
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
xxxxxxx
ARC VOLTS
5K
ARC CURRENT
5K
4.7K
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 CV505P WIRING SCHEMATIC
20C
POSITIVE
NEGATIVE
1.0
1.6
5P ROTARY SWITCH
J3-1OPTIONAL
J3-3
J3-2
GMAW 293
292
291
293
292
291
FCAW-G
J3-7 296 296
J2-6 256
J2-9
259C
J20-13
J20-5
258258258258258268
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
19B
20B
288
254A
256
259A
254A
256
259A
255
257
255
257
257257257
260
261 260
261
258258258258258258258
268
267 258258258258258258258
268
267
VIEW OF CONNECTOR ON PCB
ELECTRICAL SYMBOLS PER E1537
OHMS/W AT TS
RESISTORS:
MFD/VOLTS
CAPACITORS:
8
LATCH
EXAMPLE: PIN 7 OF
CONNECTOR J5
32
LEAD COLORING CODE:
B-BLACK
21
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
J20-12
J20-4 +15V
227
226
259B
254C
254B
J1-4
J1-5
xxxxxxx
THERMOSTAT
#2
228
225A
21A
20B
COMPONENT
VALUE UNITE:
THERMOSTAT
#1
FERRITE
BEAD
FERRITE
BEAD
SPIKE
BLOCKER
J3-4PULSE(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
PRINT TO 8.50 X 11.00 OR A3
+
-
209
207
J20-16
J20-1
J3-5 J3-6
+15 V
J4-3
J4-1
J5-2
J5-1
FAN CONTROL BOARD
19A
19B
19B
220G
221G
220G
221G
215 216
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.

E-1 BOTTOM E-1
OPTIMARC®CV505P
Rev.06
•World’s Leader in Welding and Cutting•
THE SHANGHAI LINCOLN ELECTRIC COMPANY
No. 195, Lane 5008, Hu Tai Rd. Baoshan, Shanghai, PRC 201907
www.lincolnelectric.com.cn