ESAB 653 cvcc Reference manual

www.esabna.com

DATE: January 22, 2004 BULLETIN NO: M-04-001

TITLE/ PRODUCT NAME: Power Source Faults When Connecting

DuraDrive Wire Feeder

RATING:

_

_ DIRECTIVE _X_ ALERT

(Action is Required) (Potential Problem)

_

X_ INFORMATION _ _ PRODUCT IMPROVEMENT

(Action is Optional) (Enhanced Product)

_

X_ General Distribution _ _ Business Confidential

(Unrestricted) (Restricted Distribution)

PRODUCT SERIES/ MODEL:

ESAB 353cv, 453cv and 653cvcc Power Sources

Control Board PN 38129 & 38130

SERIAL NO:

All Serial Numbers

SUMMARY:

This Instruction will eliminate a nuisance power source fault light when connecting a DuraDrive

4-30 or 4-48 wire feeder. The fault condition is caused by a transient voltage spike in the 12

volt control circuit when power is applied to the DuraDrive feeder. An additional 22 microfarad

capacitor is added to increase the time constant of the power up reset circuit which eliminates

the false triggering of the fault light.

OPERATIONAL IMPACT:

None

ACTION:

1. Remove the Main Control PCB from the power source.

2. Solder the positive (+) lead of the 22 microfarad electrolytic capacitor to the banded (+)

end of diode D46. See photo below.

3. Solder the negative (-) lead to the end of R159 that is the emitter lead of transistor Q30

& Q31.

4. Re-install control PCB into power source.

-

22 microfarad 50 vdc

capacitor PN -951013

+

-

+

CONTACT:

ESAB Welding & Cutting Products

Product & Service Information Group

843-664-4416 Phone

843-664-5539 FAX

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