Lincoln Electric IM559 No control of wire feed, Ters on wire feeder display do not, Tachometer

Page 33

E-4

TROUBLESHOOTING

E-4

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

7. No control of wire feed.

a. Problem with serial communications.

a. If WFS and preset Volts/Trim parame-

 

 

 

ters on wire feeder display do not

 

 

 

match those on power source display,

 

 

 

see Problem 14.

 

 

b. Defective Wire Feed Unit to

b. Remove Control Box to Wire Feed Unit

 

 

Control box cable or harnessing.

Cable and Check F to F, G to G and H to H

 

 

 

for continuity. If any of the continuity tests

 

 

 

fail, replace cable. Otherwise check related

 

 

 

harnesses for continuity (Refer to Wiring

 

 

 

Diagram). If continuity checks O.K. on har-

 

 

 

nessing, proceed to c.

 

 

c. Defective wire feed motor tach or

c. Measure voltage across pin 13 (+) of J4

 

 

control PC Board.

and pin 1 (-) of J4 on PC board with motor

 

 

 

running. If voltage is 1.5-3.5V then replace

 

 

 

control PC board (see Procedure for

 

 

 

Replacing PC Boards). If not, then replace

 

 

 

tachometer.

 

8. No wire feed, solenoid, or arc volt-

a. Faulty gun or gun trigger switch.

a. Remove gun. Check continuity

 

age. LED display indicated

 

between trigger pins with trigger

 

Synergic 7F has input power.

 

closed. If no continuity repair or

 

 

 

replace gun.

 

 

b. Defective Control Box to Wire

b. Replace gun. Remove plug from J4 on con-

 

 

Feed Unit Cable or harness wiring

trol board. Check that there is continuity

 

 

& connections.

between plug pins 2 and 12 when trigger is

 

 

 

closed and no continuity when trigger is

 

 

 

open. If the continuity tests pass proceed to

 

 

 

c. If not, check I to I and J to J in cable. If

 

 

 

this continuity test fails, replace cable.

 

 

 

Otherwise check wiring harnesses and pro-

 

 

 

ceed to c. if no harness problem is encoun-

 

 

 

tered.

 

 

c. Defective control PC board or gun

c. Remove gun. Check voltage across

 

 

connector.

trigger sockets on gun connector.

 

 

 

If voltage is > ±11V DC, then gun is

 

 

 

defective.

 

 

 

If voltage is < ±11V DC, then check

 

 

 

the voltage across pin 2 (+) and pin 12

 

 

 

(-) of connector J4 on control PC

 

 

 

board.

 

 

 

If the voltage is still < ±11V DC, then

 

 

 

replace control PC board, otherwise,

 

 

 

replace gun connector. (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

Page 32 Page 34
Image 33
Page 32 Page 34
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 Installation Type K678-2 K679-1 K679-2 Wire Speed RangeModel Wire Feed Features Standard FeaturesGeneral Description Recommended Processes and EquipmentControl Features Y P a D a N D D I S P L a Y Description Connecting Wire Feed Unit to Control Box Safety PrecautionsElectric Shock can kill Mounting the Control Box K678-2Wire Feed Drive Roll and Guide Tube Kits Procedure to Install Drive Roll and Guide TubesSteel Wire Sizes Roll Aluminum Wire SizesGun Cable Connection Gun and Cable Assemblies with Standard L. E. ConnectionsGmaw Guns Innershield GunsSynergic 7F Water Connections for Water-Cooled Guns Gun Cable Connections Wire Feeder to GunGmaw Shielding Gas Cylinder may explode if damagedWork Cable Electrical InstallationCurrent 60% Duty Cycle Up to 100 ft Length 30mOptional Features Installation K648, K649 or K642 Input Cable Assembly SeeElectrical Installation section for instructions Mode Selection Power-Down SaveOperation Operating InstructionsDisplay Control Keys Timer/Crater Select key enables Procedure Selector Switch Memory Ammeter Selection4-step with crater fill 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 CoilWire Loading of 13-14lb 6kg Innershield Coils Idle Roll Pressure SettingGas Guard Regulator Setting Wire Reel Changing Wire Feed Overload ProtectionMaking a Weld Explanation of Prompting Error Messages Optional Features AccessoriesREADI-REEL Adapters Maintenance MaintenanceTroubleshooting Guide TroubleshootingTrouble shooting information Replace contact tipTions in control cable Ing and gas flow rate is proper WeldingIng ReplaceTers on wire feeder display do not No control of wire feedDefective wire feed motor tach or Control PC board see Procedure forWiring harness or Control PC Wire feed motor runs and solenoid Power source is defectiveSpeed does not change when Run-in and weld speeds are set Or there may be a problem withNot match those on power Meters on wire feeder display doProblem with wire feeder harness Remote control kit must be usedTroubleshooting Between procedures a and B Dure switch Be connectedDisplay. If not, refer to Problem Faulty local dual procedure switchDual procedure switch is used to Local dual procedure switchSwitch between procedures a Faulty communication betweenOr tripped Breaker at power source is blownCircuit breaker Display or Control PC board is BadCedure for replacing PC boards Eprom checksum error See Problem 5 or see Section onOnds. Turn power back on. If EP is X8 on Control PC board is faultySwitch 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
Top Page Image Contents