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Miller Electric
OM-842 manual
Models:
OM-842
1
62
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64
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64 pages
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Install
Parts list
Electrical Diagrams
Program/Run/Reset Keyed Switch
Diagnostics
Shared Initial Procedure
Setting DIP Switch SW1
Symbol Usage
Safety
Service
Page 62
Image 62
Notes
Page 61
Page 63
Page 62
Image 62
Page 61
Page 63
Contents
Description
OM-842162074B
Processes
From Miller to You
Table of Contents
Page
Arc Welding Hazards
Symbol Usage
Marks a special safety message
Electric Shock can kill
Flying Metal can injure eyes
ARC Rays can burn eyes and skin
Welding can cause fire or explosion
Buildup of GAS can injure or kill
Principal Safety Standards
EMF Information
About Pacemakers
UN Choc É Lectrique peut tuer
Signification des symboles
Consignes DE Securite Lire Avant Utilisation
LES Fumé ES ET LES GAZ peuvent ê tre dangereux
LE Bruit peut affecter l’ouïe
LE Soudage peut provoquer un incendie ou une explosion
DES Particules Volantes peuvent blesser les yeux
’EMPLOI Excessif peut
Risque D’INCENDIE OU
LA Chute DE L’APPAREIL peut blesser
DES Organes Mobiles peuvent provoquer des blessures
Consignes relatives aux stimulateurs cardiaques
Principales normes de sé curité
Information sur les champs é lectromagné tiques
Remote 4 Socket Information
Installation
Connecting Remote Pendant Or Equivalent User-Wired Control
Pulse signal, and for a wire feeder
User Relay Contacts
Setting DIP Switch SW1
Rocker Switch Settings = On = Off
Controls
Safety Equipment
Operation
Work Clamp
Digital Display
Mode Selector Switch
Ammeter And Voltmeter
Right/Increase Push Button
Program/Run/Reset Keyed Switch
Parameter Select Push Button
Left/Decrease Push Button
Shielding Gas
Purge Push Button
Remote Pendant
Weld Sequence
Introduction to Programming
General
Balance Control
Modes Of Operation
Automatic Mode Sequence
Semi-Automatic Mode Sequence
Start Level Not Shown Time & level programmed
Weld/Peak Initial Current C Final SlopeSlope Current B
Weld/Peak
Initial Current C Final Slope Current B Current D Preflow
Semi-Automatic 4 Mode Sequence
Weld/Peak Initial C Current D Final SlopeSlope Current B
Preflow Postflow
Smaw Mode
Weld/Peak Initial Current B Final Slope Slope
Initial Slope Weld/Peak Current Final Slope Final Current
Programming
Automatic Mode
Procedure Up To Pulse Mode Selection
Procedure With Pulse Mode On, Pulses Defined In Time Values
N a L
Procedure With Pulse Mode On, Pulses Defined As a Frequency
Procedure Following Pulse Mode Definition
S T F L O W
O P
Semi-Automatic Mode
A R T
E R E M O T E T O A R T
# 0 X I N I T I a L P S = X X X
Procedure With Pulse Mode On, Pulses Defined As a Frequency
O P B U T T O N D E T E C T
X X X X X X X
Manual Gtaw Mode
R R E N T C O N T R O L
X X X X
# 0 X a R C C O N T R O L R C E N T a G E = 0 0 0 %
Smaw Mode
Editing a Program
Linking Programs
Dry Run Feature
Stop Watch Feature
N K P O S I T I O N X X X X X X X
O G R a M L I N K M O D E
Combining Programs
M B I N E M O D E
M B I N E P O S I T I O N X X I S X X X X X X
Sequence of Operation
Gas Tungsten Arc Welding Gtaw In The Automatic Mode
Shared Initial Procedure
Gas Tungsten Arc Welding Gtaw In The Semi-Automatic Modes
Operation Procedures For Semi-Automatic 3 Mode
Operation Procedures For Semi-Automatic 1 Mode
Operation Procedures For Semi-Automatic 2 Mode
Operation Procedures For Semi-Automatic 4 Mode
Gas Tungsten Arc Welding Gtaw In The Manual Mode
Operation Procedures For Semi-Automatic 5 Mode
Executing Combined Programs
Shielded Metal Arc Welding Smaw
Executing Linked Programs
Shutting Down
Introduction
Diagnostics
Overheating Protection
RAM Test
Diagnostics Program
Programming Push Button Tests
Program/Run/Reset Keyed Switch Tests
Repeating Test Displays
Output Selector Switch Test
Mode Selector Switch Test
Purge Push Button Test
W O R K I N G O P E R L Y
E a S E T U R N K N O B T O
R G E B U T T O N S T
+10 Volt DC Reference Test
Gas Solenoid Relay Test
Background Relay Test
Arc Starter Relay Test
User Relays
R E M O T E
Remote Pendant Test
M O T E P E N D a N T S T
S H D E C R E a S E B U T T O N R E M O T E
Current Detect Test
Input Contactor Test
P U T C O N T a C T O R D E T E C T E D
P U T C O N T a C T O R I S T D E T E C T E D
Electrical Diagrams
Circuit Diagram For Remote Pendant
Wiring Diagram For MPC Module
Circuit Diagram For Welding Power Source And MPC
SC-182 947-B
Parts List
Main Assembly
078 010
Dia Part Mkgs Description Quantity
NAMEPLATE, order by model and serial number 158
110
132
Page
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Page
Page
Service
Support
Miller Electric Mfg. Co
Model Name Serial/Style Number Purchase Date
Distributor Address City State Zip