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F-25

TROUBLESHOOTING & REPAIR

F-25

 

 

OUTPUT DIODES TEST (continued)

INVERTEC ® V250-S

-

+

I

S

 

O

 

PROBE

+

 

PROBE

-

 

 

Figure F.5 Meter Probes.

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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.

8.Locate output diodes and snubbers. See Figure F.6. for machine codes 10102 and 10103 only. See Figure F.7. for machine codes 10187 and 10188 only.

9.Test all output diodes and snubbers (if used) individually.

INVERTEC V250-S

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Lincoln Electric service manual Invertec V250-S