Lincoln Electric IM557 manual Grounding Lead Protector, Explanation of Prompting Error Messages

Page 29

B-11

OPERATION

B-11

 

 

 

Grounding Lead Protector

The frame of the Synergic 7 wire feeder is grounded to the frame of the power source by a lead in the con- trol cable. An overload protector prevents welding current from damaging this lead if the electrode circuit touches the wire feeder frame while the electrode is electrically hot.

If such a grounding lead fault occurs, the wire feeder display will show "GLP", and the trigger circuit will be disabled. To reset the circuit, release the trigger, make sure that the electrode is not touching the wire feeder frame, and then either press any key on the keypad or close the trigger. When the GLP circuit is reset, the "GLP" display is removed and the wire feed- er is returned to normal operating mode.

Explanation of Prompting and

Error Messages

Display

Prompt or Error

HI

Indicates arc voltage is above 80V DC.

---Indicates selected Run-In speed will be the same as the weld speed. To enter a different Run-In speed simply press the increase arrow key with Run-In selected.

HXX

Indicates wire feed overload. XX indicates

 

time remaining in seconds before unit resets

 

automatically. See sections on Routine

 

Maintenance, Periodic Maintenance, and

 

Troubleshooting Guide Problem 24.

EP

Indicates problem in EPROM assembly. See

 

Troubleshooting Guide Problem 24.

uP

Indicates problem in microprocessor RAM.

 

See Troubleshooting Guide Problem 24.

EXX

Indicates various system problems. XX will

 

be a number from 01 to 10. Turn off power to

 

feeder. Wait 5 seconds. Turn power back on.

 

If error persists, see Troubleshooting Guide

 

Problem 24. If error does not reoccur, be

 

sure to check all wire feed speed, accelera-

 

tion, and timer settings before you proceed.

Er

EEPROM error. Usually occurs at power-up.

 

Indicates one or more of the recalled settings

 

is out of acceptable limits. Press any key to

 

return to normal operation. Be sure to check

 

all wire feed speed, acceleration, and timer

 

settings before you proceed.

GLP

Indicates that the Grounding Lead Protector

 

circuit was activated due to excessive current

 

flow into the wire feeder frame. When the

 

Grounding Lead Protector circuit is activated

 

the wire feeder is disabled, i.e. the trigger out-

 

put to the power source is opened up, the

 

motor is stopped, and the gas solenoid is

 

turned off. To resume normal operation,

 

release the trigger, make sure that the elec-

 

trode is not touching the wire feeder frame,

 

and then either press a key on the keypad or

 

close the trigger. See Problem 24 in the

 

Troubleshooting Guide.

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 SettingMaking a Weld Wire Reel ChangingWire Feed Overload Protection 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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