Lincoln Electric IM557 manual Hxx

Page 45

E-11

TROUBLESHOOTING

E-11

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

24. Display shows any of the following:

 

 

 

 

 

 

HI

a. Voltmeter function is selected and arc

a. Normal operation. Voltmeter only reads 0-

 

voltage is > 80 VDC.

80 VDC.

 

 

 

 

---

a. Run-in speed is selected but is dis-

a. Run-in speed is now = weld speed. To re

 

abled.

enable Run-in speed simply press the

 

 

increase arrow key.

 

 

 

 

HXX

a. See Problem 5 or see Section on

a. XX indicates time in seconds before unit

 

Safety Precautions.

will automatically reset.

 

 

 

 

Er

a. EEPROM error.

a. Parameter recalled at power-up was out of

 

 

range. Press any key to reset. Check all

 

 

settings before proceeding to weld. If this

 

 

condition persists then ROM assembly X8

 

 

on the Control PC board is faulty. Replace

 

 

Control PC board. (See procedure for

 

 

replacing PC boards.)

 

 

 

EXX

a. Where XX is a number from 1 to 10.

a. Turn off power to feeder. Wait for 5 sec-

 

System error.

onds. Turn power back on. If EXX is dis-

 

 

played again then ROM assembly X8 on

 

 

the Control board is faulty. Replace

 

 

Control PC board. (See procedure for

 

 

replacing PC boards.)

 

 

 

EP

a. EPROM checksum error.

a. Turn off power to feeder. Wait 5 seconds.

 

 

Turn power back on. If EP is displayed

 

 

again then ROM assembly X8 on Control

 

 

PC board is faulty. Replace Control PC

 

 

board. (See procedure for replacing PC

 

 

boards.)

 

 

 

uP

a. Microprocessor RAM error.

a. Turn off power to feeder. Wait 5 seconds.

 

 

Turn power back on. If uP is displayed

 

 

again then ROM assembly X8 on the

 

 

Control PC board is faulty. Replace

 

 

Control PC board. (See procedure for

 

 

replacing PC boards.

 

 

 

GLP

a. Grounding Lead Protector circuit is

a. To return to normal operating mode,

 

activated, due to excessive current

release the trigger, and press any key on

 

flow into the wire feeder frame.

the keypad. If "GLP" is still displayed or if

 

 

it appears again before the trigger is

 

 

closed then proceed to step b. Otherwise,

 

 

before proceeding to weld make sure that

 

 

the electrode is not touching the wire feed-

 

 

er frame.

 

b. Faulty GLP reed switch, harness, or

b. Replace GLP reed switch CR1 if it is

 

Control PCB.

shorted. Check the wiring harness

 

 

between GLP reed switch CR1 and the

 

 

Control board. Repair or replace faulty

 

 

harness. If the reed switch and the wiring

 

 

harness are both OK then replace the

 

 

Control board.

 

 

 

 

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 7 & 7H

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Contents Synergic 7 and 7H 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 Technical Specifications Synergic 7 and 7H InstallationType K631-3 K631-4 Wire Speed Range Size & Weight Without Wire Stand With K377 Wire StandWire Drive Features Standard FeaturesGeneral Description Recommended Processes and EquipmentControl Features RUN-IN WFS Y P a D a N D D I S P L a Y DescriptionElectric Shock can kill Safety PrecautionsWire Feed Drive Roll and Guide Tube Kits Procedure to Install Drive Roll and Guide TubesSteel Wire Sizes Roll Aluminum Wire SizesGun and Cable Assemblies Gun Cable Connection Wire Feeder to GunFor GMA Gun Cables Gmaw GunsSynergic 7 Water Connections for Water- Cooled Guns Shut off shielding gas supply when not in useGmaw Shielding Gas Cylinder may explode if damagedElectrical Installation Warning Work Cable Optional Features InstallationCurrent 60% Duty Cycle Up to 100 ft Length 30mInstallation Power-Down Save Mode SelectionOperation Operating InstructionsDisplay Control Keys Preset voltage/trim may be adjustedCold Feed Dual Procedure Remote Control K1449-1 Step Trigger Mode SelectionProcedure Selector Switch Memory Ammeter SelectionFigure B.1a Threaded Locking Collar Wire LoadingInnershield Coils Knob so it seats into the shaft when released To remove the wire reel from its shaft, graspCut the tie wires at this time Coil tie wiresREADI-REELS a K438 READI-REEL Adapter Must be Used Feeding ElectrodeGas Guard Regulator Setting Idle Roll Pressure SettingWire Reel Changing Wire Feed Overload ProtectionMaking a Weld Grounding Lead Protector Explanation of Prompting Error MessagesOptional Features Accessories60 LB .2 KG Coil Adapter K1504-1 Universal Wire Reel Stand K1524-1READI-REEL Adapters K179 type vacuum unit not recommended for use with Synergic MISC. OptionsMaintenance MaintenanceAvoiding Wire Feeding Problems Routine MaintenanceLocate Problem Symptom 1TROUBLESHOOTINGE-1Troubleshooting 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 Connector J1 on control PCWiring 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 Wiring harness, or Control boardDual procedure switch is used to Local dual procedure switchSwitch between procedures a Faulty communication betweenTroubleshooting HXX Procedure for Replacing PC Boards Electric Shock can kill Wiring Diagram Synergic DiagramsElectric Shock Can Kill Input Connection DiagramW I R E R E E L S T a N D Dimension PrintSynergic 7 & 7H Synergic 7 & 7H Synergic 7 & 7H Synergic 7 & 7H Precaucion Warnung
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