Lincoln Electric CV-250 Safety Precautions, Select Suitable Location, Input Connections, Stacking

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INSTALLATION

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Read entire installation section before starting installation.

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

Only qualified personnel should perform this installation.

Turn the input power OFF at the discon- nect switch or fuse box before working on this equipment.

Turn the Power switch on the CV-250 “OFF” before connecting or disconnect- ing output cables, wire feeder or remote connections, or other equipment.

Do not touch electrically hot parts.

Always connect the Idealarc CV-250 grounding terminal (located on the welder base near the reconnect panel) to a good electrical earth ground.

SELECT SUITABLE LOCATION

Place the welder where clean cooling air can freely circulate in through the side louvers and out through the rear louvers. Dirt, dust or any foreign material that can be drawn into the welder should be kept at a minimum. Failure to observe these precautions can result in excessive operating temperatures and nuisance shut-downs. Idealarc CV-250 power sources carry an IP23 enclosure rating. They are rated for use in damp, dirty environments subject to occasional falling water such as rain.

STACKING

The CV-250 may be stacked three-high provided the bottom machine is on a stable, hard, level surface. Be sure that the two pins in the roof fit into the slots in the base of the CV-250 above it.

TILTING

Do not place the machine on a surface that is inclined enough to create a risk of the machine falling over.

INPUT CONNECTIONS

Be sure the voltage, phase, and frequency of the input power is as specified on the welder nameplate.

Gain access to the input reconnect panel by removing the right case side of the CV-250 (side nearest to the Power switch.)

Have a qualified electrician connect the input leads to L1, L2, and L3 of the input reconnect panel in accor- dance with the National Electrical Code, all local codes, and the connection diagram located on the inside of the right case side. Use a three phase line.

The frame of the welder must be grounded. A ground

terminal marked with the symbol located on the base of the machine is provided for this purpose. See the National Electrical Code for details on proper grounding methods.

Fuse the input circuit with the recommended super lag fuses. Choose an input and grounding wire size according to local codes or use the following table. "Delay type"1 circuit breakers may be used in place of fuses. Using fuses or circuit breakers smaller than recommended may result in "nuisance" tripping from welder inrush currents even if not welding at high cur- rents.

RECOMMENDED INPUT WIRE AND FUSE SIZES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type 75°C

 

 

 

 

Fuse

Input

Type 75°C

Copper

 

 

 

Input

(Super Lag)

Ampere

Copper Wire in

Ground Wire in

 

 

 

Voltage /

or Breaker

Rating on

Conduit AWG

Conduit AWG

 

 

 

Frequency

Size

Nameplate

(IEC) Sizes

(IEC) Sizes

 

 

 

208/60

90

56

6 (16mm2)

8 (10mm2)

 

 

 

230/60

80

51

6 (16mm2)

8 (10mm2)

 

 

 

460/60

40

26

10 (6mm2)

10 (6mm2)

 

 

 

575/60

30

20

10 (6mm2)

10 (6mm2)

 

 

 

200/50/60

90

59

4 (25 mm2)

8 (10mm2)

 

 

 

220/50/60

80

54

6 (16mm2)

8 (10mm2)

 

 

 

230/50/60

80

52

6 (16mm2)

8 (10mm2)

 

 

 

380/50/60

50

31

8 (10mm2)

10 (6mm2)

 

 

 

400/50/60

45

30

10 (6mm2)

10 (6mm2)

 

 

 

415/50/60

45

29

10 (6mm2)

10 (6mm2)

 

 

 

440/50/60

45

27

10 (6mm2)

10 (6mm2)

 

 

 

500/50/60

40

24

10 (6mm2)

10 (6mm2)

 

1Also called “inverse time” or “thermal/magnetic” circuit breakers; circuit breakers which have a delay in tripping action that decreases as the magni- tude of the current increases.

CV-250

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Contents Idealarc Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Technical Specifications Idealarc CV-250 InstallationSelect Suitable Location Safety PrecautionsInput Connections StackingOutput Connections Field Installed OptionsParalleling Operation Operating InstructionsGeneral Warnings Design Features Operational Features and ControlsPower Source Operation General DescriptionThermal Protection Indication Light Controls and SettingsVoltage Control Indicates Warning Information Located on Right Case SideOutput Panel Connections C. Output ConnectorsAuxiliary Power Starting the MachineOverload Protection Accessories Factory Installed OPTIONS/ACCESSORIESCompatible Lincoln Equipment General Maintenance MaintenanceSafety Precautions Machine and Circuit ProtectionHOW to USE Troubleshooting Guide 1TROUBLESHOOTINGE-1Troubleshooting BUILT-IN Diagnostic Routines and Error CodesError Code Trouble Remedy Problems Machine Troubleshooting GuidePossible Areas Recommended Symptoms Poor arc striking with semiautomatic Poor work connection Options Troubleshooting Guide Meter PC Board Control PC BoardOptional K857 Remote Control Check Fault Protection OperationOutput Voltage Checking Snubber CircuitWiring Diagram CV 250 60Hz CV Power Source to AN LN-7 and K857 DiagramsAdapter Source to a K867Power Source to a K867 / K775 / LN 250 CV Power Source to AN LN-25CV Power Source to AN LN-25 / K444-1 Lincoln Power Source PIN Amphenol Installation Instructions TWIST-MATE Cable Plug Installation Instructions Connection of NON-LINCOLN Wire Feeders Dimension Print $700.00 How To Read Shop DrawingsPrecaucion Warnung