Miller Electric SS-75S16, SS-75S12, SS-75D12 manual Diagnostics, Indicated Error, Error Indications

Page 28

6-3. Diagnostics

1 Wrapper

2 Motor Control Board PC1

3 LED3

4 P2

2

3

1

4

Front panel is shown removed for purpose of illustration only. In actual use, front panel would be in place.

Ref. 802 687/803 154

Display On

LED3 Sequence On

 

 

Meter

 

 

Motor Control Board PC1

Indicated Error

(If Equipped)

 

 

 

 

 

 

 

 

 

HELP 11

1

Blink

Communication Error

 

HELP 12

2

Blinks

Trigger Error

 

 

 

 

 

HELP 13

3

Blinks

Tach Error

 

HELP 14

*4 Blinks

Motor Error

*Since blink On time and blink Off time are equal in a four-blink cycle, the four−blink sequence appears as constant blinking.

Error Indications

Error conditions are indicated by LED3 on PC1 or on display (on models with meters). To view LED3, turn Off unit, remove wrapper, and turn unit On. LED3 is most easily observed from the left side of the unit.

The LED blinks in a 2.5 second cycle. The number of blinks in this period indicates the type of error.

The priority of the errors is related to the num- ber of blinks indicating the error. The more blinks, the more severe the error (motor error is top priority). A higher priority error overrides

a lower one (if a motor error and a communica- tion error existed, the light would blink four times for the motor error).

The communication error occurs 2.5 sec- onds after a loss of communication between the motor and the optional meter board. The user may continue to weld with this error. The error may be cleared by turning power Off, waiting a minimum of two seconds, and turning power On.

The trigger error occurs if the user has the trigger held for more than two minutes with- out striking an arc (providing current over- ride is not enabled), or if the user holds the

trigger past the postflow phase in a timed weld. This error also occurs if the trigger is held when the feeder is powered up. The er- ror may be cleared by releasing the trigger.

The tach error occurs 2 seconds after the loss of tachometer feedback. The user may continue to weld with this error. The motor speed is regulated through the monitoring of voltage and current.

The motor error indicates that the motor has been drawing too much current for too long. To remedy this, reduce the wire feed speed or the wire feeder torque load/duty cycle.

OM-230 298 Page 24

Image 28
Contents OM-230 298A ProcessesDescription File MIG GmawFrom Miller to You Table of Contents Page Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux UNE Décharge Électrique peut entraîner la mortIndique un message de sécurité particulier LE Soudage peut provoquer un Incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaques− Installation SpecificationsInstalling Swivel Into Pipe Post − IntroductionAdjusting Control Tilt Bracket Installing Boom And Reel SupportInstalling Wire Guide Extension Equipment Connection DiagramPin Plug Information Control Box ConnectionsPin Information Removing Safety Collar And Adjusting Boom Wire Type, Size, And Feed Speed Capability TableMotor Speed Wire Type Wire Size Feed Speed Capability Gun Recommendation TableInstallation Installing Drive RollsRemoval Installing PD Continuous Wire Guides Installing PD continuous wire guides with PD drive rollsInstalling Non-PD Old Style Wire Guides Installing wire guides with non- PD old- style drive rollsInstalling Welding Gun Installing gun with Accu-Mate connectionInstalling gun without Accu-Mate connection Installing gun with Accu-Mate connec- tionInstalling Welding Wire And Adjusting Pressure Drive Setting Setting Internal DIP Switches Run-In Disabled S1-1Manually Adjusted Run-In S1-1 And S1-2 S1-1 And S1-2Equipment DIP Switch Settings For Models With Meters Only Digital Meter DIP Switch SettingGeneral Terms Cold Wire Jog − OperationPower Switch Jog/Purge And Trigger HoldYou can adjust the preset volt − Maintenance and Troubleshooting Routine MaintenanceBrush Inspection And Replacement Disconnect power before maintainingIndicated Error DiagnosticsError Indications Disconnect power before troubleshooting TroubleshootingTrouble Remedy − Electrical Diagram Circuit DiagramStart Your Professional Welding Career Now − Parts List Main AssemblyQuantity Control Box 070 Boom Assembly Boom Assembly -1Item Drive Assembly, Wire Drive Assembly With Motor Support, Hub & Reel PD-V OM-230 298 Service SupportOwner’s Record Miller Electric Mfg. Co