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F-34

TROUBLESHOOTING AND REPAIR

F-34

 

AUXILIARY TRANSFORMER NO. 2 TEST (continued)

FIGURE F.7 – PLUGS P52 AND P54

3/8” MOUNTING SCREWS (2)

P52

P50

TRANSFORMER #2

P51

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PROCEDURE

1.Remove the main input supply power to the INVERTEC® V-450 PRO.

2.Remove any load that may be connected to the 115 VAC receptacle.

3.Using the 3/8 in. nut driver, remove the left and right case sides.

4.Perform the Capacitor Discharge Procedure.

5.Locate plugs P50 and P51 at the Auxiliary Transformer No. 2. See Figure F.7.

6.Carefully apply the correct input power and check for 115 VAC at plug P51 pins #1 and #4.

7.If 115 VAC is present, the Auxiliary Transformer No. 2 is good.

8.If 115 VAC is not present between pins #1 and #4, check the associated leads and plugs for loose or faulty connections.

WARNING

High voltage is present at plug P50.

9.Carefully test for the correct AC input voltage applied to the primary windings at H6 and H1. (P50 Pins 1 and 5) Normal is 550-575 VAC. See wiring diagram.

10.If the correct AC input voltage is applied to the primary of the Auxiliary Transformer No. 2 and the secondary voltage is NOT correct, the transformer may be faulty. Replace.

11.Install the left and right case sides using the 3/8 in. nut driver.

INVERTEC® V450-PRO

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Image 74
Lincoln Electric SVM199-A service manual Auxiliary Transformer no Test, Figure F.7 Plugs P52 and P54

SVM199-A specifications

Lincoln Electric SVM199-A is a highly advanced welding machine that has garnered attention for its robust features and innovative technologies. This piece of equipment is tailored specifically for professionals in the welding industry, providing a range of functionalities that enhance productivity and efficiency.

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