ESAB EMI Filter Modification Troubleshooting instruction

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DATE: 01/02/2007 BULLETIN NO: P_07_001

TITLE/ PRODUCT NAME: EMI Filter Modification

RATING:

_ _ DIRECTIVE _X_ ALERT

(Action is Required) (Potential Problem)

_X_ INFORMATION _X _ PRODUCT IMPROVEMENT

(Action is Optional) (Enhanced Product)

_ General Distribution _ _ Business Confidential

(Unrestricted) (Restricted Distribution)

PRODUCT SERIES/ MODEL:

Precision Plasma 100 (EPP100)—All “CE” Models

ESP200----------------------------------- All “CE” Models

Precision Plasma 200 (EPP200)—All Models

SERIAL NO:

Precision Plasma 100 (EPP100)— Before-- PDJ637158

ESP200----------------------------------- Before-- PPJ637163

Precision Plasma 200 (EPP200)— Before-- PFJ636010

SUMMARY: EMI filter PC board p.n. 0455803881 has been replaced by p.n. 0558006727. The

0455803881 was designed to function when 3 phase power is applied to the above units. In the

event of a phase loss, single phase power is supplied and the increased current in the filter coils will

cause a failure of the EMI Filter to occur.

OPERATIONAL IMPACT: EMI failure will result in an electrical short between phases of the

input power leads, causing smoke and fire damage to the power module.

ACTION:

1-Inspect the EMI filters connected to the input section of each module, if signs of heat damage

is present or a failure has occurred, replace the filter with p.n. 0558006727.

2-Inspect the K1 contactor. If damaged or if replacing the EMI filter, the contactor should be

replaced with a 150 amp rated part, pn 952251.

3-Verify 3 phase power is supplied to the power module.(No open input fuses or broken wires)

CONTACT:

ESAB Welding & Cutting Products

Product & Service Information Group

843-664-4416 Phone

843-664-5539 FAX