Manuale d’uso / di manutenzione del prodotto V250-S del fabbricante Lincoln Electric
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INVER TEC V250-S SER VICE MANUAL Sales and Service through Subsidiaries and Distributors Worldwide 22801 St. Clair Ave. Cleveland, Ohio 44117-1199 U.S.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FOR ENGINE powered equipment. 1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ii SAFETY ii ARC RA YS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FOR ELECTRICALL Y powered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working on the equipment. 8.b. Install equipment in accordance with the U.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC iv SAFETY iv PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instruc- tions et les.
INVERTEC V250-S vi MASTER T ABLE OF CONTENTS FOR ALL SECTIONS PAGE INSTALLATION .......................................................................................................................SECTION A TECHNICAL SPECIFICATIONS .................
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SECTION-A-1 INST ALLA TION INVERTEC V250-S SECTION-A-1 T ABLE OF CONTENTS -INST ALLA TION SECTION- TECHNICAL SPECIFICATIONS ...........................................
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-2 INST ALLA TION INVERTEC V250-S A-2 Height Width Depth Weight 15.0 in. 9.1 in.
A-3 INST ALLA TION INVERTEC V250-S A-3 Read this entire installation section before you start installation. SAFETY PRECAUTIONS ELECTRIC SHOCK can kill. • Have an electrician install and ser- vice this equipment. • Turn the input power off at the fuse box before working on equipment.
A-4 INST ALLA TION INVERTEC V250-S A-4 POWER INPUT CONNECTION FOR 50/60 HZ MACHINES 1. Connect terminal marked to earth ground per National Electric Code. 2. Connect the supply lines to the line switch. Torque to 3.0 Nm. 3 . Install in accordance with all local and national electric codes.
A-5 INST ALLA TION INVERTEC V250-S A-5 OUTPUT CONNECTIONS Refer to figure A.2 for the location of the 6 Pin Remote Receptacle and the Output Terminals.
A-6 NOTES INVERTEC V250-S A-6 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TO.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OPERA TION INVERTEC V250-S SECTION-B-1 SECTION-B-1 T ABLE OF CONTENTS -OPERA TION SECTION- SAFETY INSTRUCTIONS ........................................................
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC B-2 OPERA TION B-2 GENERAL D.
B-3 OPERA TION B-3 1. Power Switch - Place the lever in the “ON” position to energize the machine. When the power is on, the fan will operate and the output will be energized in SMAW modes. GTAW mode requires remote trig- ger to energize the output.
B-4 OPERA TION B-4 6. Arc Force - This control functions in SMAW modes to adjust the Arc Force. The arc is soft at the mini- mum settings and more forceful or driving at the maximum settings. Higher spatter levels may be present at the maximum settings.
B-5 OPERA TION B-5 P ARALLEL OPERA TION The Invertec’s are operable in parallel. For best results, the currents of each machine should be rea- sonably well shared.
B-6 NOTES INVERTEC V250-S B-6 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TO.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SECTION C-1 ACCESSORIES SECTION C-1 INVERTEC V250-S T ABLE OF CONTENTS -ACCESSORIES SECTION- OPTIONS / ACCESSORIES ....................................................
C-2 ACCESSORIES C-2 OPTIONS / ACCESSORIES CABLE PLUGS K852-70 - Cable Plug Kit for 1/0-2/0 cable. Attaches to welding cable to provide quick disconnect from machine. K852-95 - Cable Plug Kit for 2.0-3/0 cable. NOTE: Two K852-70 plugs are included with the V250-S.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SECTION D-1 MAINTENANCE SECTION D-1 INVERTEC V250-S T ABLE OF CONTENTS -MAINTENANCE SECTION- INPUT FILTER CAPACITOR DISCHARGE PROCEDURE ...............................
D-2 MAINTENANCE D-2 INPUT FIL TER CAP ACITOR DISCHARGE PROCEDURE 1 . Turn off input power or disconnect input power lines. 2. Remove the 5/16" hex head screws from the side and top of the machine and remove wrap-around machine cover.
D-3 MAINTENANCE D-3 ROUTINE MAINTENANCE 1 . Perform the following preventive maintenance procedures at least once every six months. It is good practice to keep a preventive maintenance record; a record tag attached to the machine works best.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC D-4 MAINTENANCE D-4 INVERTEC V250-S FIGURE D.2 — LOCATION OF MAINTENANCE COMPONENTS.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC E-1 THEOR Y OF OPERA TION E-1 INVERTEC V250-S T ABLE OF CONTENTS -THEOR Y OF OPERA TION SECTION- GENERAL DESCRIPTION ..................................................
E-2 THEOR Y OF OPERA TION E-2 INPUT LINE VOL T AGE The single-phase or three-phase input power of 208, 230 or 460 volts AC is connected to the machine, through a line switch located on the front panel.
E-3 THEOR Y OF OPERA TION E-3 PRECHARGE AND PROTECTION The input voltage is rectified and the DC voltage is applied, through the reconnect switch, to the power board. The power board contains precharging circuit- ry for the safe charging of the input filter capacitors.
E-4 THEOR Y OF OPERA TION E-4 MAIN TRANSFORMER Each IGBT pair acts as a switch assembly. Each assembly feeds a separate, oppositely wound primary winding of the main transformer.
E-5 THEOR Y OF OPERA TION E-5 OUTPUT RECTIFICA TION AND CONTROL The AC output from the main transformer secondary is rectified to a DC output and applied to the output terminals. Output voltage and current feedback infor- mation, which is fed to the control board, is sensed at the output terminals and shunt.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC E-6 THEOR Y OF OPERA TION E-.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC E-7 THEOR Y OF OPERA TION E-7 INSULA TED GA TE BIPOLAR TRANSIST OR (IGBT) OPERA TION An IGBT is a type of transistor.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC E-8 THEOR Y OF OPERA TION E-.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC V250-S SECTION F-1 TROUBLESHOOTING & REP AIR SECTION F-1 T ABLE OF CONTENTS -TROUBLESHOOTING & REP AIR SECTION- TROUBLESHOOTING AND REPAIR SECTION....
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC V250-S F-2 TROUBLESHOOTING & REP AIR F-2 This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC V250-S F-3 TROUBLESHOOTING & REP AIR F-3 _______________________________ CAUTION: Sometimes machine failures appear to be due to PC board failures.
F-4 TROUBLESHOOTING & REP AIR F-4 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
F-5 TROUBLESHOOTING & REP AIR F-5 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
F-6 TROUBLESHOOTING & REP AIR F-6 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
F-7 TROUBLESHOOTING & REP AIR F-7 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
F-8 TROUBLESHOOTING & REP AIR F-8 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
F-9 TROUBLESHOOTING & REP AIR F-9 INVERTEC V250-S Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
F-10 NOTES INVERTEC V250-S F-10 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INVERTEC V250-S F-11 TROUBLE.
F-12 TROUBLESHOOTING & REP AIR F-12 TEST PROCEDURE 1 . Remove main input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section 3. Locate the Auxiliary Transformer just behind the input line switch on the lower right side of the machine.
F-13 TROUBLESHOOTING & REP AIR F-13 7. If the correct test voltages are pre- sent the auxiliary transformer is good. 8. If any of the voltages are missing or very low, with the proper primary voltage applied, the auxiliary trans- former may be faulty.
F-14 NOTES INVERTEC V250-S F-14 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-15 TROUBLESHOOTING & REP AIR F-15 INVERTEC V250-S TEST DESCRIPTION This test will help determine if the input rectifier has “shorted” or “open” diodes.
F-16 TROUBLESHOOTING & REP AIR F-16 TEST PROCEDURE 1 . Remove main input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3. Locate Input Rectifier (D9) and lead locations. 4 . With the Phillips head screwdriver remove leads #207, 207A and #209 from the rectifier.
F-17 TROUBLESHOOTING & REP AIR F-17 6. If the Input Rectifier does not meet the acceptable readings outlined in Table F.2. the component may be faulty. Replace. Note: Before replacing the Input Rectifier(D9) check the input power switch (S1) and perform the Power Board Resistance Test .
F-18 NOTES INVERTEC V250-S F-18 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-19 TROUBLESHOOTING & R.
F-20 TROUBLESHOOTING & REP AIR F-20 TEST DESCRIPTION 1 . Remove main input power to the V250 -S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3. Locate the Power Board and associ- ated lead locations. See Figure F.
F-21 TROUBLESHOOTING & REP AIR F-21 6. If the power board does not meet the acceptable readings outlined in Table F.3. the board may be faulty. Replace. See Power Board Removal and Replacement Procedure . Note: Complete power board and filter capacitor replacement is recommended .
F-22 NOTES INVERTEC V250-S F-22 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-23 TROUBLESHOOTING & REP AIR F-23 INVERTEC V250-S TEST DESCRIPTION This test will help determine if any of the output diodes are “shorted”.
F-24 TROUBLESHOOTING & REP AIR F-24 TEST PROCEDURE 1 . Remove main input power to the V250-S. 2. Locate the output terminals on the front panel of the machine.
F-25 TROUBLESHOOTING & REP AIR F-25 5. If more than 200 ohms is measured the output diodes are not “shorted”. 6. If less than 200 ohms is measured, one or more output diodes or snub- bers may be shorted or “leaky”. 7. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-26 TROUBLESHOOTING & REP AIR F-26 OUTPUT DIODES TEST (continued) INVERTEC V250-S OUTPUT DIODES SNUBBERS Figure F .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-27 TROUBLESHOOTING & R.
F-28 TROUBLESHOOTING & REP AIR F-28 TEST PROCEDURE 1 . Remove main input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3. Locate and familiarize yourself with the leads and pin locations in plug J6 on the power board.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-29 TROUBLESHOOTING & REP AIR F-29 POWER BOARD VOL T AGE TEST (continued) INVERTEC V250-S T ABLE F .
F-30 NOTES INVERTEC V250-S F-30 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-31 TROUBLESHOOTING & R.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-32 TROUBLESHOOTING & REP AIR F-32 INVERTEC V250-S TEST PROCEDURE 1 . Remove main input power to the V250-S.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-33 TROUBLESHOOTING & REP AIR F-33 CONTROL BOARD VOL T AGE TEST (continued) INVERTEC V250-S T ABLE F .
F-34 NOTES INVERTEC V250-S F-34 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-35 TROUBLESHOOTING & R.
F-36 TROUBLESHOOTING & REP AIR F-36 TEST PROCEDURE 1 . Remove main input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3. Locate and familiarize yourself with the leads and pin locations in plug J2 on the control board and also plug J6 on the power board.
F-37 TROUBLESHOOTING & REP AIR F-37 4. The following tests will be performed with the input power applied to the V250-S. BE CAREFUL. ALWAYS REMOVE INPUT POWER AND PERFORM FILTER CAPACITOR DISCHARGE PROCEDURE BEFORE TOUCHING ANY MACHINE COMPONENT. 5.
F-38 NOTES INVERTEC V250-S F-38 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-39 TROUBLESHOOTING & R.
F-40 TROUBLESHOOTING & REP AIR F-40 TEST PROCEDURE 1 . Remove main input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3 . Put the mode switch S2 in the SMAW (soft) position and put the Local/Remote switch S3 in the LOCAL position.
F-41 TROUBLESHOOTING & REP AIR F-41 8. Check for the appropriate voltages outlined in Table F.6. Note: Voltages may vary with the input line voltage. In the event the capacitor voltage is too high or not balanced (within 20VDC) the protection circuit will pre- vent output.
F-42 NOTES INVERTEC V250-S F-42 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-43 TROUBLESHOOTING & R.
F-44 TROUBLESHOOTING & REP AIR F-44 PROCEDURE 1. Remove input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3. Locate the control board and the five molex type plugs that are connected to it.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-45 TROUBLESHOOTING & R.
F-46 TROUBLESHOOTING & REP AIR F-46 PROCEDURE 1. Remove input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3. Locate the power board, the molex type plug J6, the five leads with push-on connectors and the four capacitor leads that are connected to the power board.
F-47 TROUBLESHOOTING & REP AIR F-47 7. Using the 1/4” nut-driver remove the two screws holding the P.C. board to the heat sink mounting bracket. 8. With the 3/16” Allen wrench remove the four socket head cap screws and washers holding the power board to the large aluminum heat sink.
F-48 NOTES INVERTEC V250-S F-48 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-49 TROUBLESHOOTING & R.
F-50 TROUBLESHOOTING & REP AIR F-50 PROCEDURE 1. Remove input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3 . Perform Power Board Removal Procedure in this section. 4 . Using the 5/16’ nut-driver remove the two screws from the top rear of the case back.
F-51 TROUBLESHOOTING & REP AIR F-51 7. Once the top of the bracket assem- bly is disengaged from the top center panel the bracket assembly can be removed from the bottom of the case by sliding the bracket assembly towards the front of the machine.
F-52 NOTES INVERTEC V250-S F-52 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-53 TROUBLESHOOTING & R.
F-54 TROUBLESHOOTING & REP AIR F-54 PROCEDURE 1. Remove input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3 . Locate the input rectifier and the leads connected to it. See Figure F.16. 4. Identify and mark the leads connect- ed to the rectifier terminals.
F-55 TROUBLESHOOTING & REP AIR F-55 7. Carefully remove the input rectifier bridge. 8. When installing a new input rectifier apply a thin coating of Dow Corning 340 Heat Sink Compound (Lincoln E1868) to the mating surfaces. Torque the mounting cap screws and nuts to 44 IN-LBS.
F-56 NOTES INVERTEC V250-S F-56 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-57 TROUBLESHOOTING & R.
F-58 TROUBLESHOOTING & REP AIR F-58 PROCEDURE 1. Remove input power to the V250-S. 2. Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section. 3. Locate output diode assembly and associated leads. See Figure F.17. 4. Cut the necessary wire ties and slide the sleeving from the four wire con- nections to be disassembled.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-59 TROUBLESHOOTING & REP AIR F-59 INVERTEC V250-S 10.
F-60 NOTES INVERTEC V250-S F-60 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-61 TROUBLESHOOTING & R.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-62 TROUBLESHOOTING & REP AIR F-62 INVERTEC V250-S PROCEDURE 1. Remove input power to the V250-S.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-63 TROUBLESHOOTING & REP AIR F-63 INVERTEC V250-S 6.
F-64 NOTES INVERTEC V250-S F-64 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-65 TROUBLESHOOTING & R.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-66 TROUBLESHOOTING & REP AIR F-66 INVERTEC V250-S PROCEDURE 1. Remove input power to the V250-S.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-67 TROUBLESHOOTING & REP AIR F-67 INVERTEC V250-S 6 . Disconnect and clear the shunt sensing leads from the control board (plug J4).
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-68 TROUBLESHOOTING & R.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-69 TROUBLESHOOTING & REP AIR F-69 22. Reassemble the shunt assembly to the negative output terminal.
F-70 NOTES INVERTEC V250-S F-70 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-71 TROUBLESHOOTING & R.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-72 TROUBLESHOOTING & REP AIR F-72 INVERTEC V250-S PROCEDURE 1. Remove input power to the V250-S.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-73 TROUBLESHOOTING & REP AIR F-73 INVERTEC V250-S 7 . Disconnect the thermostat leads from the thermostat mounted on the shunt assembly.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-74 TROUBLESHOOTING & R.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-75 TROUBLESHOOTING & REP AIR F-75 INVERTEC V250-S 21. With the 3/4” wrench assemble the positive output lead to the positive output terminal.
F-76 NOTES INVERTEC V250-S F-76 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-77 TROUBLESHOOTING & R.
F-78 NOTES INVERTEC V250-S F-78 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master .
G-1 ELECTRICAL DIAGRAMS G-1 INVERTEC V250-S Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Electrical Diagram Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section G Wiring Diagram (Codes 10102, 10103) .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES INVERTEC V250-S.
G-2 ELECTRICAL DIAGRAMS INVERTEC V250S Wiring Diagram (Codes 10102, 10103) ELECTRICAL SYMBOLS PER E1537 H1 18V 76 C B A F 75 76 77 GND REMOTE CONTROL RECEPTACLE MIN T3 T2 OFF ON H1 I I TP5 B W TP4 C6 .
G-3 ELECTRICAL DIAGRAMS INVERTEC V250S Wiring Diagram (Codes 10187, 10188) ELECTRICAL SYMBOLS PER E1537 H1 18V 76 C B A F 75 76 77 GND REMOTE CONTROL RECEPTACLE MIN T3 T2 OFF ON H1 I I TP5 B W TP4 C6 .
G-4 ELECTRICAL DIAGRAMS INVERTEC V250S Control PC Board (G2666) Layout ITEM REQ'D PART NO. IDENTIFICATION CAPACITORS = MFD/VOLTS RESISTORS = OHMS J2 J3 J4 X1 TP1 D3 D2 D4 D1 D6 C2 C3 R11 R12 C4 R.
G-5 ELECTRICAL DIAGRAMS INVERTEC V250S Power PC Board (G2684) Layout CAPACITORS = MFD/VOLTS RESISTORS = OHMS ITEM REQ'D PART NO IDENTIFICATION T1 B206 B203A B202A B207A C1 DZ1 DZ2 DZ3 R1 R2 R3 R4.
G-6 ELECTRICAL DIAGRAMS INVERTEC V250S Control PC Board (G2666) Schematic 50V 0.1 C6 50V 0.1 C10 1.50K R34 NC GND S V OUT IN OUT GND V S X4 3 4 7 5 1 6 8 2 NC GND S V OUT IN OUT GND V S X2 3 4 7 5 1 6 8 2 267 R7 1W 12V DZ4 1.0A 30V D35 4.7 35V C7 50V 0.
G-7 ELECTRICAL DIAGRAMS INVERTEC V250S Power PC Board (G2684) Schematic 325VDC E (NOMINAL) FILTER 207A RECONNECT G2 S2 G1 S1 G3 S4 S3 G4 A B J6 1 DRIVE GATE GATE GATE GATE T1 6 5 7 8 3 10 9 4 1 12 J6 2 325VDC TRANSFORMER PRIMARY L TRANSFORMER D PRIMARY FROM BOARD CONTROL (NOMINAL) 208 9304 RECONNECT 1W 15V DZ2 1.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Lincoln Electric V250-S è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Lincoln Electric V250-S - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Lincoln Electric V250-S imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Lincoln Electric V250-S ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Lincoln Electric V250-S, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Lincoln Electric V250-S.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Lincoln Electric V250-S. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Lincoln Electric V250-S insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
