Lincoln Electric IM559 Arrow keys do not change Weld, Speed or volts/trim, Source display, Boards

Page 35

E-6

TROUBLESHOOTING

E-6

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

12. Arrow keys do not change Weld

a. This is normal, as only the WFS and

a. Refer to operation section of this manual

speed or volts/trim.

volts/trim knobs will adjust these settings.

 

 

 

 

13. WFS knob does not change

a. This is normal, as only the arrow

a. Refer to operation section of this manual.

Run-in speed.

keys will adjust this setting.

 

 

 

 

14. WFS and preset Volts/Trim para-

a. Power source is defective.

a. If parameters on power source and wire

meters on wire feeder display do

 

feeder display match when wire feeder is

not match those on power

 

connected to the other input receptacle (#1

source display.

 

or #2) of power source then power source

 

 

is defective.

 

b. Problem with serial communica-

b. Disconnect input cable from power source

 

tions in control cable.

and wire feeder. Check continuity between

 

 

socket G of 8-socket plug and pin G of 14

 

 

pin plug of the input cable. Check continu-

 

 

ity between socket H of 8-socket plug and

 

 

pin H of 14-pin plug of the input cable.

 

 

Replace cable if no continuity.

 

c. Problem with wire feeder harness

c. Remove molex plug P5 from J5 on Control

 

or Control PCB.

PCB. Check continuity from pin G of 8-pin

 

 

receptacle on wire feeder to pin 5 of plug

 

 

P5, and from pin H of 8-pin receptacle to

 

 

pin 6 of plug P5. If no continuity then repair

 

 

harness, otherwise replace Control PCB.

 

 

(See procedure for replacing PC boards.)

 

 

 

15. Display does not change when

a. A remote control kit is connected.

a. When a remote control kit is connected to

WFS and/or Volts/Trim knobs

 

the Control Box, the WFS and Volts/Trim

are turned.

 

knobs of the Control Box become inactive

 

 

and the WFS and Volts/Trim knobs of the

 

 

remote control kit must be used.

 

b. Broken harness wire(s) or harness

b. Check for continuity between correspond-

 

disconnected from Encoder

ing harness leads of molex plug P1 on

 

board(s) or Control board.

Control board and molex plugs P17 and

 

 

P18 on Encoder boards (refer to wiring dia-

 

 

gram). If any of these continuity tests fail,

 

 

repair or replace harness.

 

c. Defective Encoder boards and/or

c. If b. is not the problem and neither the WFS

 

Control board.

or Volts/Trim knobs are properly adjusting

 

 

then replace the Control board. If one of

 

 

the knobs is properly adjusting, plug the

 

 

harness, P17 or P18, from the working

 

 

board into the nonfunctional board. If the

 

 

previously nonfunctional board is now work-

 

 

ing then replace the Control board, other-

 

 

wise replace the nonfunctional Encoder

 

 

board. (See procedure for replacing PC

 

 

boards.)

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

SYNERGIC 7F & FH

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Contents Synergic 7F and Synergic 7FH Mar ‘95 SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionMar. ‘93 Précautions DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Model InstallationType K678-2 K679-1 K679-2 Wire Speed Range Recommended Processes and Equipment Standard FeaturesWire Feed Features General DescriptionControl Features Y P a D a N D D I S P L a Y Description Mounting the Control Box K678-2 Safety PrecautionsConnecting Wire Feed Unit to Control Box Electric Shock can killAluminum Wire Sizes Procedure to Install Drive Roll and Guide TubesWire Feed Drive Roll and Guide Tube Kits Steel Wire Sizes RollInnershield Guns Gun and Cable Assemblies with Standard L. E. ConnectionsGun Cable Connection Gmaw GunsCylinder may explode if damaged Gun Cable Connections Wire Feeder to GunSynergic 7F Water Connections for Water-Cooled Guns Gmaw Shielding Gas60% Duty Cycle Up to 100 ft Length 30m Electrical InstallationWork Cable CurrentElectrical Installation section for instructions Optional Features InstallationK648, K649 or K642 Input Cable Assembly See Operating Instructions Power-Down SaveMode Selection OperationDisplay Control Keys Timer/Crater Select key enables 4-step with crater fill Procedure Selector SwitchMemory Ammeter Selection To Mount 10 to 44 lb 4.5-20kg Spool 12/300mm Diameter Feeding Electrode and Brake AdjustmentFeeding Electrode To Mount a 50-60lb 22.7-27.2kg CoilGas Guard Regulator Setting Wire Loading of 13-14lb 6kg Innershield CoilsIdle Roll Pressure Setting Making a Weld Wire Reel ChangingWire Feed Overload Protection Explanation of Prompting Error Messages Optional Features AccessoriesREADI-REEL Adapters Maintenance MaintenanceTroubleshooting Guide TroubleshootingTions in control cable Trouble shooting informationReplace contact tip Replace WeldingIng and gas flow rate is proper IngControl PC board see Procedure for No control of wire feedTers on wire feeder display do not Defective wire feed motor tach orOr there may be a problem with Wire feed motor runs and solenoid Power source is defectiveWiring harness or Control PC Speed does not change when Run-in and weld speeds are setRemote control kit must be used Meters on wire feeder display doNot match those on power Problem with wire feeder harnessTroubleshooting Faulty local dual procedure switch Dure switch Be connectedBetween procedures a and B Display. If not, refer to ProblemFaulty communication between Local dual procedure switchDual procedure switch is used to Switch between procedures aBad Breaker at power source is blownOr tripped Circuit breaker Display or Control PC board isX8 on Control PC board is faulty See Problem 5 or see Section onCedure for replacing PC boards Eprom checksum error Onds. Turn power back on. If EP isSwitch Requirements Procedure for Replacing PC Boards Electric Shock can killControl P.C Board DIAGRAMSF-1Input Connection Diagram DiagramsPrint Wire Feed Unit Dimension Print Synergic 7F & FH Synergic 7F & FH Precaucion Warnung
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