ESAB Welding System Part No. 677190 Bedienungsanleitung

UEC-8UNIONMELT® ELECTRONICWELDING CONTROLPart No. 677190Be sure this information reaches the operator.You can get extra copies through your supplier.T

F. SYMPTOM: No control over motor speed at wirefeed potentiometer.1. Check wire speed potentiometer with ohmmeter.Resistance should range from 0 throu

Fig. 3 - UEC-8 Control (Inside View)SENSITIVITY POTENTIOMETER - 92W64KNOB - 994305VII. REPLACEMENT PART DATA1. All replacement parts are keyed on the

Fig. 5 - Reversible Governor PC Board, P/N 675332Fig. 6 - Logic P.C. Board, P/N 997115 (Earlier Units - obso-lete)Logic P.C. Board, P/N 675330 (Later

Fig. 7 - Schematic Diagram, UEC-8 Control

Fig. 8 - Wiring Diagram, UEC-8 Control

F-12-747-F 3/95 1M Printed in U.S.A.IF YOU DO NOT KNOW WHOM TO CALLTelephone: (800) ESAB-123 Fax: (843) 664-4462Hours: 7:30 AM to 5:00 PM ESTorvisit u

2WARNING: These Safety Precautions are foryour protection. They summarize precaution-ary information from the references listed inAdditional Safety In

3FUMES AND GASES -- Fumes andgases, can cause discomfort or harm,particularly in confined spaces. Donot breathe fumes and gases. Shield-ing gases can

4I. INTRODUCTION1. The UEC-8 electronic welding control P/N 677190 isdesigned for a wide range of Subarc† welding appli-cations, and can be used with

5III. INSTALLATIONA. EQUIPMENT REQUIRED1. A 25-ft., 12-conductor cable with 14-pin (@ UEC-8)extension cables with 19-pin (@ power source)amphenols at

6Fig. 1 - Interconnection DiagramUEC-8 CONTROLP10VIOREDBLUP11BLUVIOYELP6P7P8P9DC AMMETERW/TRMPOTDC VOLTMETER4 COND. GOV CABLE2 FT. - 997965'J&apo

7IV. IMPORTANT CHECKLISTTo confirm that the various components (control, head,carriage, and power supply) have been properly inter-connected, it is im

b. Reverse meter leads and reading should be 50 ohmsor less. To test for ammeter harnessing, place meteracross terminals TB1-7 and TB1-8, reading sho

4. Place Weld Start-Stop switch in "Start" position. Powersupply contactor is automatically energized and weldcommences.5. With start of wel