Lincoln Electric IM559 Wire feed motor runs and solenoid Power source is defective, Sent, Present

Page 34

E-5

TROUBLESHOOTING

E-5

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

9. Wire feed motor runs and solenoid

a. Power source is defective.

a. If arc voltage is present when wire feeder is

 

turns on but no arc voltage pre-

 

connected to the other input receptacle (#1 or

 

sent.

 

#2) of power source then power source is

 

 

 

defective. Otherwise, select a stick procedure

 

 

 

on power source, connect a known good input

 

 

 

cable (see step b) to wire feeder #1 receptacle

 

 

 

of power source, and jumper across sockets C

 

 

 

and D of 8-socket input cable plug. If no arc

 

 

 

voltage is present (refer to display on power

 

 

 

source) then power source is defective.

 

 

b. Input cable is defective.

b. Disconnect input cable from power source and

 

 

 

wire feeder. Check continuity between socket

 

 

 

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

 

 

 

the input cable, and between socket D of 8-

 

 

 

socket plug and pin D of 14-pin plug of the

 

 

 

input cable. Replace cable if no continuity.

 

 

c. Wiring harness or Control PC

c. Check continuity between pin C of 8-pin recep-

 

 

board is defective.

tacle and pin 7 of plug P5, and between pin D

 

 

 

of 8-pin receptacle and pin 8 of plug P5. If no

 

 

 

continuity then harness is faulty, otherwise

 

 

 

replace Control PC board. (See procedure for

 

 

 

replacing PC boards.)

 

 

 

 

 

10. Speed does not change when

a. Run-in and weld speeds are set

a. Set run-in and weld speeds to desired set-

 

weld current flows.

to the same value or run-in is set

tings.

 

 

to ---.

 

 

 

 

b. Power Source may be defective

b. Make sure that parameters on power source

 

 

or there may be a problem with

display, such as WFS, match those on wire

 

 

the Serial communications.

feeder display. If not, refer to Problem 14.

 

 

 

Otherwise, replace control PC board. (See

 

 

 

procedure for replacing PC boards.)

 

 

 

 

11. Voltmeter does not function or

a. Electrode sensing lead or connec-

a. Check continuity from brass block on wire

 

read properly when arc voltage is

tions may be intermittent.

feeder to pin F of 8-pin control cable recepta-

 

present.

 

cle on wire feeder. If there is continuity, pro-

 

 

 

ceed to next step. Otherwise, check N to N

 

 

 

connection in the 14-pin cable between the

 

 

 

Control Box and the Wire Drive Unit. If this

 

 

 

continuity test fails, replace cable. Otherwise

 

 

 

check continuity of 67 lead in the wiring har-

 

 

 

nesses of the Control Box and the Wire Drive

 

 

 

Unit. Repair faulty connections.

 

 

b. Serial communication problem.

b. Make sure that parameters on power source

 

 

 

display, such as WFS, match those on wire

 

 

 

feeder display. If not, refer to Problem 14.

 

 

 

Otherwise, replace Control PC 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 Safety Mar ‘95Electric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Mar. ‘93Please Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Type K678-2 K679-1 K679-2 Wire Speed Range InstallationModel General Description Standard FeaturesWire Feed Features Recommended Processes and EquipmentControl Features Y P a D a N D D I S P L a Y Description Electric Shock can kill Safety PrecautionsConnecting Wire Feed Unit to Control Box Mounting the Control Box K678-2Steel Wire Sizes Roll Procedure to Install Drive Roll and Guide TubesWire Feed Drive Roll and Guide Tube Kits Aluminum Wire SizesGmaw Guns Gun and Cable Assemblies with Standard L. E. ConnectionsGun Cable Connection Innershield GunsGmaw Shielding Gas Gun Cable Connections Wire Feeder to GunSynergic 7F Water Connections for Water-Cooled Guns Cylinder may explode if damagedCurrent Electrical InstallationWork Cable 60% Duty Cycle Up to 100 ft Length 30mK648, K649 or K642 Input Cable Assembly See Optional Features InstallationElectrical Installation section for instructions Operation Power-Down SaveMode Selection Operating InstructionsDisplay Control Keys Timer/Crater Select key enables Memory Ammeter Selection Procedure Selector Switch4-step with crater fill Feeding Electrode and Brake Adjustment To Mount 10 to 44 lb 4.5-20kg Spool 12/300mm DiameterTo Mount a 50-60lb 22.7-27.2kg Coil Feeding ElectrodeIdle Roll Pressure Setting Wire Loading of 13-14lb 6kg Innershield CoilsGas Guard Regulator Setting Wire Feed Overload Protection Wire Reel ChangingMaking a Weld Explanation of Prompting Error Messages Accessories Optional FeaturesREADI-REEL Adapters Maintenance MaintenanceTroubleshooting Troubleshooting GuideReplace contact tip Trouble shooting informationTions in control cable Ing WeldingIng and gas flow rate is proper ReplaceDefective wire feed motor tach or No control of wire feedTers on wire feeder display do not Control PC board see Procedure forSpeed does not change when Run-in and weld speeds are set Wire feed motor runs and solenoid Power source is defectiveWiring harness or Control PC Or there may be a problem withProblem with wire feeder harness Meters on wire feeder display doNot match those on power Remote control kit must be usedTroubleshooting Display. If not, refer to Problem Dure switch Be connectedBetween procedures a and B Faulty local dual procedure switchSwitch between procedures a Local dual procedure switchDual procedure switch is used to Faulty communication betweenCircuit breaker Display or Control PC board is Breaker at power source is blownOr tripped BadOnds. Turn power back on. If EP is See Problem 5 or see Section onCedure for replacing PC boards Eprom checksum error X8 on Control PC board is faultyProcedure for Replacing PC Boards Electric Shock can kill Switch RequirementsDIAGRAMSF-1 Control P.C BoardDiagrams Input Connection DiagramPrint Wire Feed Unit Dimension Print Synergic 7F & FH Synergic 7F & FH Precaucion Warnung
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