Miller Robotic Interface II User manual

cover 5/94 – ST-801 077-A PRINTED IN USA
1995 MILLER Electric Mfg. Co.
Read and follow these instructions and all
safety blocks carefully.
Have only trained and qualified persons
install, operate, or service this unit.
Call your distributor if you do not understand
the directions.
Give this manual to the operator.
For help, call your distributor
or: MILLER Electric Mfg. Co., P.O. Box 1079,
Appleton, WI 54912 414-734-9821
OWNER’S
MANUAL
June 1995 Form: OM-172 324
Effective With Serial No. KF812826
ControlsWelding Power Source For Robotic Welding Applications
For GMAW, Standard GMAW-P, And Adaptive GMAW-P Welding
Requires Installation Of Interface Panel For Robot In Use
Welding Power Source Must Have 14-Pin Remote Control Capability
Programmable Weld Parameters
Overload Protection
Robotic Interface II

sr1.1.1 2/94
ARC WELDING SAFETY PRECAUTIONS
WARNING
PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN
AWAY. PACEMAKER WEARERS KEEP AWAY UNTIL CONSULTING YOUR DOCTOR.
In welding, as in most jobs, exposure to certain hazards occurs. Welding is safe when precautions are taken. The
safety information given below is only a summary of the more complete safety information that will be found in the
Safety Standards listed on the next page. Read and follow all Safety Standards.
HAVE ALL INSTALLATION, OPERATION, MAINTENANCE, AND REPAIR WORK PERFORMED ONLY BY
QUALIFIED PEOPLE.
ARC WELDING can be hazardous.
ELECTRIC SHOCK can kill.
Touchinglive electrical parts can cause fatal shocks
or severe burns. The electrode and work circuit is
electricallylive whenever the output is on. The input
power circuit and machine internal circuits are also
live when power is on. In semiautomatic or automatic
wire welding, the wire, wire reel, drive roll housing, and
all metal parts touching the welding wire are
electrically live. Incorrectly installed or improperly
groundedequipment is a hazard.
1. Do not touch live electrical parts.
2. Wear dry, hole-free insulating gloves and body protection.
3. Insulateyourself from work and ground using dry insulating mats
or covers big enough to prevent any physical contact with the
work or ground.
4. Disconnect input power or stop engine before installing or
servicing this equipment. Lockout/tagout input power according
to OSHA 29 CFR 1910.147 (see Safety Standards).
5. Properly install and ground this equipment according to its
Owner’s Manual and national, state, and local codes.
6. Always verify the supply ground – check and be sure that input
powercord ground wire is properly connected to ground terminal
in disconnect box or that cord plug is connected to a properly
groundedreceptacle outlet.
7. When making input connections, attach proper grounding
conductorfirst – double-check connections.
8. Frequentlyinspect input power cord for damage or bare wiring –
replacecord immediately if damaged – bare wiring can kill.
9. Turn off all equipment when not in use.
10. Do not use worn, damaged, undersized, or poorly spliced cables
.
11. Do not drape cables over your body.
12. If earth grounding of the workpiece is required, ground it directly
with a separate cable – do not use work clamp or work cable.
13. Do not touch electrode if you are in contact with the work, ground
,
or another electrode from a different machine.
14. Use only well-maintained equipment. Repair or replace
damagedparts at once. Maintain unit according to manual.
15. Wear a safety harness if working above floor level.
16. Keep all panels and covers securely in place.
17. Clampwork cable with good metal-to-metal contact to workpiece
or worktable as near the weld as practical.
ARC RAYS can burn eyes and skin;
NOISE can damage hearing; FLYING
SLAG OR SPARKS can injure eyes.
Arc rays from the welding process produce intense
visible and invisible (ultraviolet and infrared) rays that
can burn eyes and skin. Noise from some processes
can damage hearing. Chipping, grinding, and welds
coolingthrow off pieces of metal or slag.
NOISE
1. Use approved ear plugs or ear muffs if noise level is high.
ARC RAYS
2. Wear a welding helmet fitted with a proper shade of filter to
protectyour face and eyes when welding or watching (see ANS
I
Z49.1and Z87.1 listed in Safety Standards).
3. Wear approved safety glasses with side shields.
4. Use protective screens or barriers to protect others from flash
and glare; warn others not to watch the arc.
5. Wear protective clothing made from durable, flame-resistan
t
material(wool and leather) and foot protection.
FUMES AND GASES can be hazardous
to your health.
Weldingproduces fumes and gases. Breathing these
fumes and gases can be hazardous to your health.
1. Keep your head out of the fumes. Do not breathe the fumes.
2. If inside, ventilate the area and/or use exhaust at the arc to
removewelding fumes and gases.
3. If ventilation is poor, use an approved air-supplied respirator.
4. Read the Material Safety Data Sheets (MSDSs) and the
manufacturer’s instruction for metals, consumables, coatings,
cleaners,and degreasers.
5. Work in a confined space only if it is well ventilated, or while
wearing an air-supplied respirator. Always have a trained
watchpersonnearby. Welding fumes and gases can displace air
and lower the oxygen level causing injury or death. Be sure the
breathing air is safe.
6. Do not weld in locations near degreasing, cleaning, or spraying
operations.The heat and rays of the arc can react with vapors to
form highly toxic and irritating gases.
7. Do not weld on coated metals, such as galvanized, lead, or
cadmiumplated steel, unless the coating is removed from the
weld area, the area is well ventilated, and if necessary, while
wearingan air-supplied respirator. The coatings and any metals
containingthese elements can give off toxic fumes if welded.
CYLINDERS can explode if damaged.
Shielding gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode. Since
gas cylinders are normally part of the welding
process, be sure to treat them carefully.
1. Protect compressed gas cylinders from excessive heat,
mechanicalshocks, slag, open flames, sparks, and arcs.
2. Installcylinders in an upright position by securing to a stationary
support or cylinder rack to prevent falling or tipping.
3. Keepcylinders away from any welding or other electrical circuits.
4. Never drape a welding torch over a gas cylinder.
5. Never allow a welding electrode to touch any cylinder.
6. Never weld on a pressurized cylinder – explosion will result.
7. Use only correct shielding gas cylinders, regulators, hoses, and
fittingsdesigned for the specific application; maintain them and
associated parts in good condition.
8. Turn face away from valve outlet when opening cylinder valve.
9. Keepprotective cap in place over valve except when cylinder is
in use or connected for use.
10. Read and follow instructions on compressed gas cylinders
,
associatedequipment, and CGA publication P-1 listed in Safety
Standards.

sr1.1.1 2/94
WELDING can cause fire or explosion.
Weldingon closed containers, such as tanks, drums,
or pipes, can cause them to blow up. Sparks can fly off
from the welding arc. The flying sparks, hot
workpiece, and hot equipment can cause fires and
burns. Accidental contact of electrode to metal
objects can cause sparks, explosion, overheating, or
fire. Check and be sure the area is safe before doing
any welding.
1. Protect yourself and others from flying sparks and hot metal.
2. Do not weld where flying sparks can strike flammable material.
3. Removeall flammables within 35 ft (10.7 m) of the welding arc. If
this is not possible, tightly cover them with approved covers.
4. Be alert that welding sparks and hot materials from welding can
easily go through small cracks and openings to adjacent areas.
5. Watch for fire, and keep a fire extinguisher nearby.
6. Be aware that welding on a ceiling, floor, bulkhead, or partition
can cause fire on the hidden side.
7. Do not weld on closed containers such as tanks, drums, or pipes
,
unless they are properly prepared according to AWS F4.1 (see
Safety Standards).
8. Connect work cable to the work as close to the welding area as
practicalto prevent welding current from traveling long, possibly
unknownpaths and causing electric shock and fire hazards.
9. Do not use welder to thaw frozen pipes.
10. Remove stick electrode from holder or cut off welding wire a
t
contact tip when not in use.
11. Wear oil-free protective garments such as leather gloves, heavy
shirt, cuffless trousers, high shoes, and a cap.
12. Removeany combustibles, such as a butane lighter or matches
,
from your person before doing any welding.
WARNING ENGINES can be hazardous.
ENGINE EXHAUST GASES can kill.
Enginesproduce harmful exhaust gases. 1. Use equipment outside in open, well-ventilated areas. 2. If used in a closed area, vent engine exhaust outside and away
from any building air intakes.
ENGINE FUEL can cause fire or
explosion.
Enginefuel is highly flammable.
1. Stop engine and let it cool off before checking or adding fuel.
2. Do not add fuel while smoking or if unit is near any sparks or
open flames.
3. Do not overfill tank – allow room for fuel to expand.
4. Do not spill fuel. If fuel is spilled, clean up before starting
engine.
MOVING PARTS can cause injury.
Movingparts, such as fans, rotors, and belts can cut
fingersand hands and catch loose clothing.
1. Keep all doors, panels, covers, and guards closed and
securely in place.
2. Stop engine before installing or connecting unit.
3. Have only qualified people remove guards or covers for
maintenanceand troubleshooting as necessary.
4. To prevent accidental starting during servicing, disconnec
t
negative(–) battery cable from battery.
5. Keephands, hair, loose clothing, and tools away from moving
parts.
6. Reinstallpanels or guards and close doors when servicing is
finished and before starting engine.
SPARKS can cause BATTERY
GASES TO EXPLODE; BATTERY
ACID can burn eyes and skin.
Batteries contain acid and generate explosive
gases.
1. Always wear a face shield when working on a battery.
2. Stop engine before disconnecting or connecting battery
cables.
3. Do not allow tools to cause sparks when working on a battery
.
4. Do not use welder to charge batteries or jump start vehicles.
5. Observe correct polarity (+ and –) on batteries.
STEAM AND PRESSURIZED HOT
COOLANT can burn face, eyes, and
skin.
It is best to check coolant level when engine is cold
to avoid scalding.
1. If the engine is warm and checking is needed, follow steps 2
and 3.
2. Wear safety glasses and gloves and put a rag over cap.
3. Turn cap slightly and let pressure escape slowly before
completelyremoving cap.
PRINCIPAL SAFETY STANDARDS
Safety in Welding and Cutting, ANSI Standard Z49.1, from American
WeldingSociety, 550 N.W. LeJeune Rd, Miami FL 33126
Safety and Health Standards, OSHA 29 CFR 1910, from Superinten-
dent of Documents, U.S. Government Printing Office, Washington, D.C.
20402.
Recommended Safe Practices for the Preparation for Weldingand Cut-
ting of Containers That Have Held Hazardous Substances, American
WeldingSociety Standard AWS F4.1, from American Welding Society,
550 N.W. LeJeune Rd, Miami, FL 33126
NationalElectrical Code, NFPA Standard 70, from National Fire Protec-
tion Association, Batterymarch Park, Quincy, MA 02269.
SafeHandling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 1235 Jefferson Davis Highway,
Suite501, Arlington, VA 22202.
Code for Safety in Welding and Cutting, CSA Standard W117.2, from
CanadianStandards Association, Standards Sales, 178 Rexdale Bou-
levard,Rexdale, Ontario, Canada M9W 1R3.
Safe Practices For Occupation And Educational Eye And Face Protec-
tion, ANSI Standard Z87.1, from American National Standards Institute,
1430 Broadway, New York, NY 10018.
Cutting And Welding Processes, NFPA Standard 51B, from National
Fire Protection Association, Batterymarch Park, Quincy, MA 02269.

OM-172 324 – 6/95
EMF INFORMATION
The following is a quotation from the General Conclusions Section of
the U.S. Congress, Office of Technology Assessment, Biological
Effects of Power Frequency Electric & Magnetic Fields –
Background Paper, OTA-BP-E-53 (Washington, DC: U.S.
GovernmentPrinting Office, May 1989): “. . . there is now a very large
volume of scientific findings based on experiments at the cellular
level and from studies with animals and people which clearly
establishthat low frequency magnetic fields can interact with, and
produce changes in, biological systems. While most of this work is
of very high quality, the results are complex. Current scientific
understandingdoes not yet allow us to interpret the evidence in a
single coherent framework. Even more frustrating, it does not yet
allowus to draw definite conclusions about questions of possible risk
or to offer clear science-based advice on strategies to minimize or
avoid potential risks.”
To reduce magnetic fields in the workplace, use the following
procedures:
1. Keep cables close together by twisting or taping them.
2. Arrange cables to one side and away from the operator.
3. Do not coil or drape cables around the body.
4. Keep welding power source and cables as far away as practical.
5. Connect work clamp to workpiece as close to the weld as
possible.
About Pacemakers:
The above procedures are among those also normally
recommended for pacemaker wearers. Consult your doctor for
completeinformation.
Considerations About Welding And The Effects Of Low Frequency Electric And
Magnetic Fields
NOTE
mod10.1 4/93
TABLE OF CONTENTS
SECTION 1 – SAFETY INFORMATION 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2 – INSTALLATION 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1. Connection Diagram 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2. Rear Panel Connections 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3. Connecting Optional Emergency Stop Push Button 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3 – OPERATIONAL TERMS 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4 – OPERATION 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5 – INTRODUCTION TO PROGRAMMING 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1. Programs 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2. Pulse Panel Microprocessor Push Buttons 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6 – GETTING STARTED FOR PULSE WELDING 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7 – TEACHING A PULSE WELDING PROGRAM 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1. Pulse Waveform Explained 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2. Teach Points Explained 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-3. Teaching A Pulse Welding Program 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-4. Changing To Adaptive Pulse Welding 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 8 – TEACHING A MIG WELDING PROGRAM 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1. Changing To MIG Welding 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2. Setting Sequence MIG Welding Parameters 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 9 – USING THE OPTIONAL DATA CARD 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-1. Installing Data Card 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2. Using The Data Card 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 10 – SETUP 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-1. Setup Flow Chart 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-2. Using Setup Displays 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-3. Selecting Welding Power Source Range 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-4. Selecting Security Lock 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-5. Selecting Or Changing Access Code 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-6. Selecting Voltage Correction 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-7. Selecting Inductance 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-8. Selecting Purge Time 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-9. Selecting Voltage Sensing Method 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-10. Selecting Regular Or Hot Arc Start 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-11. Resetting Arc Time 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-12. Selecting Units For Wire Feed Speed And Motor Type 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-13. Selecting Wire Type 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-14. Selecting Display 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-15. Resetting Memory 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-16. Selecting Arc Start/Volt Sense Error Shutdown 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-17. Selecting Program Name Feature 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-18. Remote Program Select 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-19. Stick Check Selection 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-20. Jog Wire Feed Speed Selection 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-21. Robot Type Selection 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-22. Arc Failure Shutdown 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-23. Arc Voltage Error Selection 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-24. Software Version Number 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 11 – MAINTENANCE & TROUBLESHOOTING 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-1. Routine Maintenance 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-2. Overload Protection 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-3. Front Panel Error Displays 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 12 – ELECTRICAL DIAGRAMS 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 13 – PARTS LIST 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 13-1. Case Section w/Components 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 13-2. Panel, Front w/Components 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 13-3. Panel, Center w/Components 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 13-4. Panel, Rear w/Components 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 13-5. Motor & Drive Assembly 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OM-172 324 Page 1
SECTION 1 – SAFETY INFORMATION
mod1.1 2/9
3
Read all safety messages throughout this manual.
Obey all safety messages to avoid injury.
Learn the meaning of WARNING and CAUTION.
1 Safety Alert Symbol
2 Signal Word
WARNING means possible death
or serious injury can happen.
CAUTION means possible minor
injury or equipment damage can
happen.
3 Statement Of Hazard And Re-
sult
4 Safety Instructions To Avoid
Hazard
5 Hazard Symbol (If Available)
6 Safety Banner
Read safety blocks for each sym-
bol shown.
7 NOTE
Special instructions for best oper-
ation – not related to safety.
2
NOTE
ELECTRIC SHOCK can kill.
•Do not touch live electrical parts.
•Disconnect input power before
installing or servicing.
WARNING
READ SAFETY BLOCKS at start of
Section3-1 before proceeding.
WARNING
5
4
6
7
1 2
CAUTION
MOVING PARTS can injure.
•Keep away from moving parts.
•Keep all panels and covers closed
when operating.
3
Turn Off switch when using high frequency.
Figure 1-1. Safety Information

OM-172 324 Page 2
SECTION 2 – INSTALLATION
2-1. Connection Diagram
ST-801 078-A
1 Robot (Will Vary According To
Application)
2 Motor/Drive Assembly
3 Positive (+) Voltage Sensing
Lead
4 Gas Cylinder
5 Gas Hose
6 Robot Control
7 Robot Input/Output Cable
8 Remote Program Select
Cable (Optional)
9 Gas And Motor Control Cable
10 Interface Unit
11 Welding Power Source
12 17-Socket Plug And Intercon-
necting Cord
13 14-Socket Plug And Intercon-
necting Cord
14 Negative (–) Weld Cable
15 Workpiece
16 Negative (–) Voltage Sensing
Lead
17 Positive (+) Weld Cable
1
The proper interface kit must be installed in the interface
unit to allow it to be connected to the robot.
234
5
6
9
78
10
11
12
13
14
15 16
17
Figure 2-1. Connection Diagram

OM-172 324 Page 3
2-2. Rear Panel Connections
1 Receptacle
2 Keyway
3 14-PinReceptacle (Connec-
tion To Welding Power
Source)
4 17-Pin Receptacle (Connec-
tion To Welding Power Source
With 17-Pin Receptacle)
5 19-Socket Receptacle (Motor/
Shielding Gas Control
Connection To Motor Drive
Assembly)
6 10-Socket Receptacle (Op-
tional Remote Program Select
Connection To Robot Control)
To connect matching interconnect-
ing cord to one of the above recep-
tacles, align keyway, insert plug,
and tighten threaded collar. Con-
nect remaining end of cord to
matchingreceptacle on applicable
equipment(see Figure 2-1).
7 4-Pin Receptacle (Optional
External Voltage Sensing
Connection)
To connect interconnecting cord to
receptacle, align keyway, insert
plug,and tighten threaded collar.
Cord for voltage sensing connec-
tion divides in two. Secure ring ter-
minal on one cord to clamp and at-
tach clamp to work. Secure ring ter-
minal on remaining cord to motor/
drive assembly where weld cable is
connected.
8 InterfacePanel (Robot Con-
trol Connection)
Receptacle will vary according to
the robot control being used with
the system. Follow connection
directions included with interface
panelkit.
Ref. S-0003-A / ST-800 962-A
8
3
45
6
7
1
BM
CNL
DRS K
EGJ
FH
PT
A
2
ExampleReceptacle
If optional external voltage sensing connections are used,
removejumper link from across terminals D and E on inter-
nal terminal strip 2T and install jumper link across termi-
nals C and D. See Figure 2-3 for the location of 2T.
Figure 2-2. Rear Panel Connections

OM-172 324 Page 4
2-3. Connecting Optional Emergency Stop Push Button
WARNING
ELECTRIC SHOCK can kill.
•Do not touch live electrical parts.
•Turn Off robot, welding power source, and interface unit, and disconnect input power before inspecting or installing.
swarn1.1* 2/93
ST-801 146
Terminalstrip 2T provides connec-
tion points for an optional normally
closed Emergency Stop (E-stop)
push button. To make connections,
proceedas follows.
Remove top cover.
1 Terminal Strip 2T
2 Strain Relief
Loosenstrain relief and insert leads
from normally closed E-stop push
button.Route leads to 2T.
Remove jumper link across termi-
nals A and B on 2T. Keep for future
use.
Connect one lead from E-stop
switch to terminal A and the remain-
ing lead to terminal B.
Tightenstrain relief and reinstall top
cover.
Tools Needed:
1/4 in
2
1
Figure 2-3. Connecting Optional Emergency Stop Push Button
SECTION 3 – OPERATIONAL TERMS
The following is a list of terms and their definitions as they apply to this interface unit:
General Terms:
Adaptive Pulse Welding When the “adaptive pulse” welding process is selected, the unit will automati-
cally regulate pulse frequency in order to maintain a constant arc length, re-
gardless of change in welding wire stickout.
Abk (Background
Amperage) Abk is the low weld current. Background current preheats welding wire and maintains the arc. When background current is too low, the arc is unstable and
hard to maintain.
Apk (Peak Amperage) Apk is the high pulse of welding current. Peak current melts the welding wire
and forms a droplet. The droplet is forced into the weld puddle.
Inductance In short circuit GMAW welding, an increase in inductance will decrease the
number of short circuit metal transfers per second (provided no other changes
are made) and increase the arc-on time. The increased arc-on time makes the
pool more fluid.
PPS (Pulses Per Second) PPS, pulse rate, and frequency (Hz) are used interchangeably. A PPS or pulse
rate of 60 Hz means 60 pulses of current are produced each second.
PWms (Pulse Width in
Milliseconds) PWms is the time spent at peak current (1.2 ms is .0012 seconds). This time must be long enough to form a droplet of welding wire. The stiffness or fluidity
of the molten weld puddle is controlled by PWms.
Synergic Synergic refers to the unit’s ability to use preprogrammed pulse parameters to
determine the actual pulse settings of Peak Amperage, Background Amperage,
Pulse Frequency and Pulse Width at any specific wire feed speed setting.
Trim Term used to represent arc length adjustments in pulse programs. Increasing
trim increases the actual arc length. Likewise, decreasing trim shortens arc
length. Trim is replaced by volts in MIG programs.

OM-172 324 Page 5
Pulse Panel Terms:
Card Mode Is used to select use of the optional data card storage and retrieval capabilities.
Process Mode Is used to select the type of process to be used, including Pulse, Adaptive
Pulse, or Mig.
Sequence Mode Is used to select and program the weld sequences which include preflow, run-
in, weld, crater, burnback, and postflow.
Setup Screen Terms:
Access Code NOTE: The optional Data Card is required to activate this feature. With code
off, access to the setup displays is not restricted. With code on, the operator
must know and enter the access code to access or change any of the setup
displays.
To use code, press Parameter Select button to enter access code. When the
correct letter is entered, the indicator automatically moves to the next charac-
ter. When the final access code letter is entered, the display automatically
changes to the initial setup display.
Arc Start NOTE: Do not use the Hot Start setting for .035 in (9 mm) or smaller wire. Use
the Hot Start mode for pulse welding with 450 Ampere Inverter Model when
high initial weld current is necessary to start large diameter welding wires.
When in Hot Start, the 450 Ampere Inverter Model starts the arc in the CV
mode and switches to CC once the arc is started. Do not use Hot Start unless
using 450 Ampere Inverter Model.
Arc Time Allows actual arc time up to 9,999.99 hours and weld cycles up to 999,999 to
be accumulated and displayed on the digital display, and can be reset to zero
as required.
Mig Type (Voltage
Correction) With DVC Voltage Correction On, the unit uses closed-loop feedback from the 17-pin cord or voltage sensing leads to maintain set voltage parameters. With
DVC Voltage Correction Off, feedback from the arc is not used for closed-loop
feedback to maintain voltage parameters. Feedback from the arc is still used
for other functions.
Be sure voltage sensing leads are connected or voltage feedback is available
through the 17-pin receptacle via the welding power source.
Name Feature When using the optional Data Card and turning the name feature on, programs
written to the card can be identified by name, number, job number, etc.
Program Reset By selecting program reset in the memory reset mode, the unit defaults to origi-
nal factory program settings for the program last active. All other program and
setup information remains the same.
Range The interface requires that the voltage and amperage range of the welding
power source be entered. Obtain this information from the welding power
source Owner’s Manual.
Security NOTE: The optional Data Card is required to activate this feature. Is used to
limit what the operator can control. This includes accessing the number of the
program, 1 through 8, and the range of welding parameters within the program.
Software Screen Selection of this function will display the software version of the unit. When
talking with factory service personnel, this number may be required.
System Reset By selecting system reset in the memory reset mode, the unit defaults to origi-
nal factory settings for all programs and all set up excluding System, Arc Time,
and Model Type.
Voltage (Control Feedback) Allows voltage to be monitored at the output terminals by two methods. This
can be selected through the 17-pin cord connection if the welding power source
has a 17-pin receptacle, or through the unit’s external voltage sense lead.
If the 17 Pin setting is used, it is recommended that the voltage sensing termi-
nals on the welding power source be used to monitor arc voltage at the work-
piece.
When using the V. Sense setting, arc voltage feedback is through the voltage
sense leads connected to the feeder. Use this setting when there is more than
50 ft (15 m) of weld cable used.

OM-172 324 Page 6
Arc Start/Volt Sense
Shutdown When this feature is on, the system immediately shuts down if no arc voltage is sensed. An error message is displayed. When this feature is off, wire feeds
even when there is no arc voltage sensed.
Wire Feed Mode Allows the selection of inches per minute or meters per minute for wire feed
speed. This mode is also used to select motor type; standard speed, low
speed, or high speed. High speed motor is available as factory option.
SECTION 4 – OPERATION
WARNING
ELECTRIC SHOCK can kill.
•Do not touch live electrical parts.
•Always wear dry insulating gloves.
•Insulate yourself from work and ground.
•Keep all panels and covers securely in place.
FUMES AND GASES can be hazardous
to your health.
•Keep your head out of the fumes.
•Ventilate area, or use breathing device.
•Read Material Safety Data Sheets (MSDSs) and
manufacturer’s instructions for material used.
WELDING can cause fire or explosion.
•Do not weld near flammable material.
•Watch for fire; keep extinguisher nearby.
•Do not locate unit over combustible surfaces.
•Do not weld on closed containers.
•Allow work and equipment to cool before handling.
ARC RAYS can burn eyes and skin;
NOISE can damage hearing.
•Wear welding helmet with correct shade of filter.
•Wear correct eye, ear, and body protection.
MOVING PARTS can cause injury.
•Keep away from pinch points such as drive rolls.
•Keep all doors, panels, covers, and guards closed
and securely in place.
MAGNETIC FIELDS FROM HIGH CUR-
RENTS can affect pacemaker operation.
•Pacemakerwearers keep away.
•Wearers should consult their doctor before going
near any welding operations.
See Safety Precautions at beginning of manual for ba-
sic welding safety information. wfwarn3.1 8/92
Wear the following while welding:
1 Dry, Insulating Gloves
2 Safety Glasses With Side
Shields
3 Welding Helmet With Correct
Shade Of Filter (See ANSI
Z49.1)
sb3.1 1/94
123
Figure 4-1. Safety Equipment
1 Work Clamp
Connect work clamp to a clean,
paint-freelocation on workpiece, as
close to weld area as possible.
Use wire brush or sandpaper to
clean metal at weld joint area. Use
chipping hammer to remove slag
after welding.
sb4.1* 2/93
Tools Needed: 1
Figure 4-2. Work Clamp

OM-172 324 Page 7
Front Panel
1 Display
2 Reset Button
After clearing an error, press this
buttonto reset the display.
3 Purge Button
Push to energize gas valve. If a
purge time value is programmed,
the gas will flow for the programmed
lengthof time. If a value is not pro-
grammed, the gas flows until the
Purge button is released.
This button allows purging of air
fromgun shielding gas line, and ad-
justing shielding gas regulator with-
out energizing the welding circuit.
Front panel and pulse panel con-
trols, and the gun trigger do not
work when the Purge button is
pressed.
4 ContactorOn Light
Lights when welding power source
contactor is energized.
5 Wirefeed On Light
Lights when wirefeed motor is On.
6 Gas On Light
Lights when gas flow is On.
7 Retract Button
Push to retract welding wire without
energizing welding circuit or shield-
ing gas valve.
8 Advance Button
Push to feed welding wire without
energizingwelding circuit or shield-
ing gas valve.
Pulse Panel
9 Display
10 Data Card Slot
Insert optional data card here. See
Section 9 for information on using
the data card.
11 Increase Button
12 Decrease Button
13 Parameter Select Button
14 Mode Select Button
See Section 5 for information on us-
ing pulse panel controls.
Rear Panel
15 Power Switch
User power switch to tun unit On
and Off.
ST-800 755-B / ST-800 962-A
7
8
10
11
12
13
14
123
FrontPanel
Pulse Panel
9
15
Rear Panel
45
6
Figure 4-3. Controls

OM-172 324 Page 8
WARNING
BUILDUP OF SHIELDING GAS can harm health or kill.
•Shut off shielding gas supply when not in use.
warn1.1 9/91
1 ShieldingGas Cylinder
2 Valve
Open valve on cylinder just before
welding.
Close valve on cylinder when fin-
ished welding.
sb5.1* 6/92 – S-0621-C
1
2
Figure 4-4. Shielding Gas
Install & Connect
Interface Into
Welding System
Put On
Personal Safety
Equipment
SetAll Controls
And Verify
Program Selection
Turn On Shielding
Gas
Turn On
Welding System
Equipment
Adjust Weld
Parameters ssb6.1* 9/92
Perform Test
Weld
Begin
Welding
As Needed
Figure 4-5. Sequence Of Gas Metal Arc (GMAW), Gas Metal Arc - Pulse (GMAW-P),
And Flux Cored Arc Welding (FCAW)
Ref. ST-150 171-C / Ref. SC-154 197
Set switches as shown for all
welding processes when using
this interface unit.
Figure 4-6. Setting Switches On 450 Ampere Inverter Model Welding Power Source

OM-172 324 Page 9
SECTION 5 – INTRODUCTION TO PROGRAMMING
5-1. Programs
A. General
ST-801 077-A
1 InterfaceUnit
The interface unit is designed for
use in pulse MIG welding (adaptive
or standard), or MIG welding.
The unit is factory-equipped with
eightprograms for pulse MIG weld-
ing (see Figure 5-2). The programs
contain parameters that maximize
weldingperformance for each com-
binationof wire and shielding gas.
The unit also provides memory for
the creation of up to eight MIG pro-
grams (see Section 8).
The weld programs require the user
to enter information specific to the
welding application. This informa-
tionis entered as a part of program
development (see Section 6 for
pulsed MIG information), and dur-
ing setup (see Section 10).
1
Figure 5-1. Interface Unit
B. Pulse MIG Programs
The eight pulse programs are
shown in the table. Each program
can be used in standard pulse MIG
or adaptive pulse MIG.
In an adaptive pulse MIG program,
the unit manipulates certain weld
variables to hold arc voltage
constant.This feature is described
in Section 7-4.
The factory-set parameters for
each program can be changed to
customize them for an application
(see Section 7).
Program
1
2
3
4
5
6
Hardwire Selected*
.035” Steel,Argon – Oxy
.045” Steel,Argon – Oxy
.035” Steel,Argon – CO2
.045” Steel,Argon – CO2
.035” 309,Argon – CO2
.045” Steel, 309,Argon – CO2
7 3/64” 5356,Argon
8 .035” SIB,Argon
Softwire Selected*
.045” Steel,Argon – Oxy
.035” 4043,Argon
.045” Steel,Argon – CO2
1/16” 4043,Argon Selecting hardwire or softwire is
doneduring setup (see Section 10)
.045” 4043,Argon
.045” 5356,Argon
.035” 5356,Argon
1/16” 5356,Argon
Figure 5-2. Pulse MIG Programs

OM-172 324 Page 10
5-2. Pulse Panel Microprocessor Push Buttons
WARNING
ELECTRIC SHOCK can kill.
•Do not touch live electrical parts.
•Controlcircuit and interface operational power are
On when using or changing the microprocessor
settings.
WELDING WIRE can cause puncture
wounds.
•Do not point gun towards any part of the body, other
people,or any metal when programming.
The welding wire can be electrically live and move out of
the gun during programming.
Ref. ST-154 109
>P r o c e s s
Card
Sequence
Process
>C a r d
Sequence
1
2
>Prg 1
Pu l s e
03 5 ” S t e e l
Ar gon–Oxy
1 Mode Display
2 Mode Select Button
Press Mode Select button to move
indicator in left window display.
Go to Figure 5-4.
Pulse Panel
Figure 5-3. Mode Select Button

OM-172 324 Page 11
Ref. ST-154 109
1 ParameterDisplay
2 Moving Line
Moving line is under value that can
be changed.
3 Pulse Panel Parameter Select
Button
Press pulse panel parameter select
button to move indicator in right win-
dow display.
1
>P r o c e s s
Card
Sequence
>Prg 1
Pu l s e
03 5 ” S t e e l
Ar g on – Oxy
2
3
Prg 1
>P u l s e
035”Steel
A r g on – Oxy
Pu l se
035”Steel
A r g on – Oxy
>T e a c h Off
Pulse Panel
Figure 5-4. Pulse Panel Parameter Select Button

OM-172 324 Page 12
Ref. ST-154 109
Use mode select button to select
mode to be changed (see
Figure 5-3).
Use pulse panel parameter select
button to select parameter to be
changed(see Figure 5-4).
1 Increase Button
Press button to increase value that
is underlined by the moving line.
2 Decrease Button
Press button to decrease value that
is underlined by the moving line.
1
2
Increase
Decrease
>P r g 1
Pu l se
035”Steel
Argon–Oxy
>P r g 2
Pu l se
045”Steel
A r g on – Oxy
>P r g 3
Pu l se
052”Steel
A r g on – Oxy
>P r g 2
Pu l se
045”Steel
A r g on – Oxy
Increase
Pulse Panel
Figure 5-5. Pulse Panel Parameter Increase And Decrease Buttons

OM-172 324 Page 13
SECTION 6 – GETTING STARTED FOR PULSE WELDING
WARNING
ELECTRIC SHOCK can kill.
•Do not touch live electrical parts.
•Always wear dry insulating gloves.
•Insulate yourself from work and ground.
•Keep all panels and covers securely in place.
FUMES AND GASES can be hazardous
to your health.
•Keep your head out of the fumes.
•Ventilate area, or use breathing device.
•Read Material Safety Data Sheets (MSDSs) and
manufacturer’s instructions for material used.
WELDING can cause fire or explosion.
•Do not weld near flammable material.
•Watch for fire; keep extinguisher nearby.
•Do not locate unit over combustible surfaces.
•Do not weld on closed containers.
•Allow work and equipment to cool before handling.
ARC RAYS can burn eyes and skin;
NOISE can damage hearing.
•Wear welding helmet with correct shade of filter.
•Wear correct eye, ear, and body protection.
MOVING PARTS can cause injury.
•Keep away from pinch points such as drive rolls.
•Keep all doors, panels, covers, and guards closed
and securely in place.
MAGNETIC FIELDS FROM HIGH CUR-
RENTS can affect pacemaker operation.
•Pacemakerwearers keep away.
•Wearers should consult their doctor before going
near arc welding, gouging, or spot welding opera-
tions.
See Safety Precautions at beginning of manual for ba-
sic welding safety information. wfwarn6.1 8/92
Ref. S-0271
Preflow Time
Wire Speed
Weld
Start
Start
Speed
Start Time
Weld Speed
Weld Time
Crater
Speed
Crater Time
Postflow Time
Burnback Time
Time
Weld
Stop
Arc
Start Arc Out
Figure 6-1. Weld Cycle
The type of robot being used is defined during the setup process (see Section 10).
The Robot type indicates which parts of the weld cycle the robot controls.
When the Robot type selected is Control of Power Source, Wire, Gas, & Analog,
there are no programmable sequences for Pulse welding.
When the Robot type selected is Control of Arc On & Analog Inputs, only preflow
and postflow are programmable.
When the Robot type selected is Arc On & No Analog Inputs, preflow, weld, crater,
and postflow are programmable.
NOTE

OM-172 324 Page 14
1 ModeSelect Button
Whenunit is turned On, Process is
the default mode, at other times,
use mode select button to select
Sequence.
2 ParameterSelect Button
Use parameter select button to se-
lect parameters.
3 Preflow Parameters Display
Preflow can be adjusted from 0-9.9
seconds. If value set is zero (0),
there is no Preflow sequence.
Go to Figure 6-3.
3
Set Desired Time
Increase/
Decrease Proceed to next figure.
>P r e f l o w
0.0 Sec Pref low >0 . 0 Sec >P r e f l o w 1.2 Sec
Increase
Parameter
Select
Parameter
Select
Parameter
Select
2
Process
Card
>Sequence
>P r e f l o w
0.0 Sec
Mode Select
1
Figure 6-2. Setting Preflow Sequence Display
1 Weld Parameters Display
Parameter ranges are as follows:
Trim (Arc Length), 0-99
Wire Feed Speed, 50-780 Inches
Per Minute, IPM
Go to Figure 6-4.
Parameter
Select
We l d
60 Tr im
>200 IPM
Set Desired Weld Sequence
Increase/
Decrease
We l d
60 Tr im
300 IPM Proceed to next figure.
Increase
1
We l d
>5 0 T r i m
200 IPM
Increase/
Decrease
Set Desired Weld
Parameter
Select
Sequence Trim
Wire Feed Speed
Figure 6-3. Setting Weld Sequence Display