Lincoln Electric Technical Specifications Invertec V250-S, Three Phase Single Phase

Page 8

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A-2

INSTALLATION

A-2

Technical Specifications - Invertec V250-S

INPUT

THREE PHASE

SINGLE PHASE

Standard

Input Current

Standard

Input Current

Voltage

at Rated Output

Model

Voltage

at Rated Output

Model

208/230/460

34/32/16

60Hz

208/230/460 60Hz

59/57/29

60Hz

200/220/400/440

35/33/18/17

50/60 Hz

200/220/400/440 50/60 Hz

58/58/30/30

50/60 Hz

RATED

OUTPUT

THREE PHASE

SINGLE PHASE

Volts at

Volts at

Duty Cycle(1)

Amps

Rated Amps

Model

Duty Cycle(1)

Amps

Rated Amps

Model

35% Duty Cycle

250

30

60Hz

35% Duty Cycle

250

27† -30

60Hz

60% Duty Cycle

200

28-32

60Hz

60% Duty Cycle

200

28-32

60Hz

100% Duty Cycle

165

26.5

60Hz

100% Duty Cycle

165

26.5

60Hz

35% Duty Cycle

250

28† -30

50/60Hz

35% Duty Cycle

250

26† -30

50/60Hz

60% Duty Cycle

200

29-32

50/60Hz

60% Duty Cycle

200

28-32

50/60Hz

100% Duty Cycle

165

26.5

50/60Hz

100% Duty Cycle

165

26.5

50/60Hz

OUTPUT

THREE PHASE

SINGLE PHASE

Welding

Constant Open

Welding

Constant Open

Current Range

Circuit Voltage

Current Range

Circuit Voltage

1-250 Amps

65-80 VDC

1-250 Amps

65-80 VDC

RECOMMENDED INPUT WIRE AND FUSE SIZES

THREE PHASE

SINGLE PHASE

Type 75°C

Type 75°C

Type 75°C

Copper

Type 75°C

Copper

Fuse

Input

Copper

Ground

Fuse

Input

Copper

Ground

(Superlag)

Ampere

Wire in

Wire in

(Superlag)

Ampere

Wire in

Wire in

Input

or

Rating

Conduit

Conduit

Input

or

Rating

Conduit

Conduit

Voltage

Breaker

on

AWG (IEC)

AWG (IEC)

Voltage

Breaker

on

AWG (IEC)

AWG (IEC)

Frequency(2)

Size

Nameplate

Sizes

Sizes

Frequency(2)

Size

Nameplate

Sizes

Sizes

208/60

50

34

10 (6mm2)

10 (6mm2)

208/60(3)

80

59

8 (10mm2)

10 (6mm2)

230/60

50

32

10(6mm2)

10 (6mm2)

230/60(3)

80

57

8 (10mm2)

10 (6mm2)

460/60

30

16

10 (6mm2)

10 (6mm2)

460/60

40

29

10 (6mm2)

10 (6mm2)

200/50/60

50

35

10 (6mm2)

10 (6mm2)

200/50/60

80

58

8 (16mm2)

10 (6mm2)

220/50/60

50

33

10 (6mm2)

10 (6mm2)

220/50/60

80

58

8 (16mm2)

10 (6mm2)

400/50/60

30

18

10 (6mm2)

10 (6mm2)

400/50/60

40

30

10 (6mm2)

10 (6mm2)

440/50/60

30

17

10 (6mm2)

10 (6mm2)

440/50/60

40

30

10 (6mm2)

10 (6mm2)

PHYSICAL DIMENSIONS

Height	Width	Depth	Weight
15.0 in.	9.1 in.	19.7 in.	36 lbs.
381 mm	231 mm	500 mm	17 Kg

(1)Based on a 10 min. period.

(2)Input voltage must be within ±10% of rated value.

(3)For 1 phase use on 208 or 230 VAC input with output usage above 175A/60% or 200A/35%, the #10 input line cord supplied with the unit should be changed to a

#8 or larger conductor cord.

(†) 200 & 208VAC input may not meet NEMA/IEC specifications at 250 Amps.

INVERTEC V250-S

Image 8

Contents Invertec V250-S Safety Fumes and Gases can be dangerous Electric Shock can killARC Rays can burn Cylinder may explode if damaged Welding Sparks can cause fire or explosionPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Installation Table of Contents Installation SectionThree Phase Technical Specifications Invertec V250-SThree Phase Single Phase Select Suitable Location Safety PrecautionsInput Connections Power Input Connection for 50/60 HZ Machines Input Voltage Reconnect ProcedureInput Fuse and Supply Wire Remote Control Receptacle Output ConnectionsQuick Disconnect Plugs Output CablesInvertec V250-S Operation Safety Instructions Gouging SparksControls and Settings Figure B.1 Case Front ControlsConstant Current Processes Manual ARC Welding StickAIR Carbon ARC Cutting TIG WeldingThermal Protection Parallel OperationOverload Protection Invertec V250-S Accessories Table of Contents Accessories SectionCable Plugs Options / AccessoriesRemote Controls Maintenance Table of Contents Maintenance SectionInput Filter Capacitor Discharge Procedure Figure D.1 Location of Input Filter Capacitor TerminalsRoutine Maintenance Filter Capacitor ConditioningFigure D.2 Location of Maintenance Components Table of Contents Theory of Operation Section Theory of OperationGeneral Description Input Line VoltagePrecharge and Protection Figure E.2 Protection and PRE-CHARGE CircuitsMain Transformer Figure E.3 Main TransformerOutput Rectification Control Figure E.4 Output Rectification and ControlProtection Circuits Overload ProtectionInsulated Gate Bipolar Transistor Igbt Operation Maximum Output Pulse Width ModulationMinimum Output Troubleshooting & Repair HOW to USE Troubleshooting Guide Oscilloscope WarningPC Board Troubleshooting Procedures Board can be dam- aged by static electricityPossible Areas Recommended Symptoms Course of ActionPossible Areas Perform the Control Board Voltage ChecksCapacitor Balance Test Troubleshooting & Repair Perform the Output Diode Test Welding Problems Invertec V250-S Materials Needed Auxiliary Transformer TestTest Description Test Procedure Auxiliary Transformer TestAuxiliary Transformer Test Table F.1 Auxiliary Transformer Test PointsInvertec V250-S Input Rectifier Test Test Procedure Input Rectifier TestTable F.2 Input Rectifier Test Points Test Point Terminals Analog Meter X10 RangeInvertec V250-S Power Board Resistance Test Power Board Resistance Test Test DescriptionPower Board Resistance Test Table F.3 Power Board Resistance Test PointsInvertec V250-S Output Diodes Test Output Diodes Test Figure F.4 Machine Output TerminalsInvertec V250-S Diode Modules Power Board Voltage Test Power Board Voltage Test Figure F.8 Plug J6 on Power BoardTest Conditions Table F.4. Power Board Voltage Test PointsAcceptable Test Description Invertec V250-S Control Board Voltage Test Control Board Voltage Test Figure F.9 Plugs J1-J5 on Control BoardTable F.5. Control Board Voltage Test Points 18VACInvertec V250-S Protection Circuit Test Protection Circuit Test Figure F.10 Control Board Plug J2 Test PointsProtection Circuit Simplified Invertec V250-S Capacitor Balance Test Figure F.12 Power Board and Capacitor Test Locations Capacitor Balance TestTable F.6 Capacitor Voltages Invertec V250-S Control Board Removal and Replacement V250S Control Control Board Removal and ReplacementProcedure Power Board Removal and Replacement Power Board Removal and Replacement Figure F.14 Power Board Lead LocationsPower Board Replacement Procedure Invertec V250-S Filter Capacitor Removal and Replacement Matched PartsFilter Capacitor Removal and Replacement Figure F.15 Heatsink/Power Board RemovalPerform Power Board Replacement Procedure in this section Invertec V250-S Input Rectifier Bridge Removal and Replacement Input Rectifier Bridge Removal and Replacement Figure F.16 Input Rectifier Lead LocationsTroubleshooting & Repair Invertec V250-S Materials Needed Snubber Resistors Locking Tabs Invertec V250-S Wrench Allen type wrench Torque wrench Mounting Bolts Diode Modules Bolted Connections Troubleshooting & Repair Invertec V250-S Main Transformer Removal and Replacement Machine Codes below T3 Current Transformer Main Transformer Main Transformer Secondary Leads Figure F.22 Main Transformer Mountings Clear all leads and secure for case wrap-around assembly Invertec V250-S Main Transformer Removal and Replacement Machine Codes Above Figure F.23 Main Transformer Right Side Figure F.24 Main Transformer Left Side Figure F.25 Main Transformer Mountings Troubleshooting & Repair Invertec V250-S Maximum Acceptable Output AT Minimum Output Settings Minimum Acceptable Output AT Maximum Output SettingsRetest After Repair Input Idle Amps and Idle WattsInvertec V250-S Electrical Diagrams Invertec V250-S Wiring Diagram Codes 10102 Invertec V250SWiring Diagram Codes 10187 Return to SectionControl PC Board G2666 Layout G2666Power PC Board G2684 Layout Power P.C. BD. AsblyControl PC Board G2666 Schematic Relay CoilsPower PC Board G2684 Schematic From Control BD