Lincoln Electric INVERTEC V250-S Bedienungsanleitung PDF herunterladen (Seite 104)

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F-72

TROUBLESHOOTING & REPAIR

F-72

INVERTEC V250-S

PROCEDURE

1. Remove input power to the V250-S.

2. Perform

Filter Capacitor Discharge

Procedure

detailed in Maintenance

Section.

3. Locate main transformer and associ-

ated primary leads. See Figure

F.23.

4. Disconnect transformer primary

leads #201, #204, #205 and #208

from the power board.

NOTE: Leads #204 and #205 will

have to be removed from the T3 cur-

rent transformer. Cut any necessary

cable ties. Be sure to note the

direction that the leads are thread-

ed through the current trans-

former. Upon reassembly the leads

must be threaded correctly.

5. Locate main transformer and associ-

ated secondary leads, reactor leads,

and shunt connections. See

Figure

F.24.

6. Disconnect and clear the shunt

sensing leads from the control board

(plug J4).

MAIN TRANSFORMER REMOVAL AND REPLACEMENT

(MACHINE CODES ABOVE 10150)

(continued)

201

204

205

208

T3 CURRENT TRANSFORMER

MAIN TRANSFORMER

Figure F.23 Main Transformer Right Side

1 2 ... 99 100 101 102 103 104 105 106 107 108 109 ... 117 118

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