Miller Robotic Interface II Owner's 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

October 1995 Form: OM-172 324A

Effective With Serial No. KF966516

Controls Welding 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.

Touching live electrical parts can cause fatal shocks

or severe burns. The electrode and work circuit is

electrically live 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

grounded equipment is a hazard.

1. Do not touch live electrical parts.

2. Wear dry, hole-free insulating gloves and body protection.

3. Insulate yourself 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

power cord ground wire is properly connected to ground terminal

in disconnect box or that cord plug is connected to a properly

grounded receptacle outlet.

7. When making input connections, attach proper grounding

conductor first – double-check connections.

8. Frequently inspect input power cord for damage or bare wiring –

replace cord 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

damaged parts 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. Clamp work 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

cooling throw 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

protect your face and eyes when welding or watching (see ANS

I

Z49.1 and 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.

Welding produces 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

remove welding 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

watchperson nearby. 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

cadmium plated steel, unless the coating is removed from the

weld area, the area is well ventilated, and if necessary, while

wearing an air-supplied respirator. The coatings and any metals

containing these 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,

mechanical shocks, slag, open flames, sparks, and arcs.

2. Install cylinders in an upright position by securing to a stationary

support or cylinder rack to prevent falling or tipping.

3. Keep cylinders 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

fittings designed for the specific application; maintain them and

associated parts in good condition.

8. Turn face away from valve outlet when opening cylinder valve.

9. Keep protective cap in place over valve except when cylinder is

in use or connected for use.

10. Read and follow instructions on compressed gas cylinders

,

associated equipment, and CGA publication P-1 listed in Safety

Standards.

sr1.1.1 2/94

WELDING can cause fire or explosion.

Welding on 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. Remove all 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

practical to prevent welding current from traveling long, possibly

unknown paths 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. Remove any 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.

Engines produce 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.

Engine fuel 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.

Moving parts, such as fans, rotors, and belts can cut

fingers and 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

maintenance and troubleshooting as necessary.

4. To prevent accidental starting during servicing, disconnec

t

negative (–) battery cable from battery.

5. Keep hands, hair, loose clothing, and tools away from moving

parts.

6. Reinstall panels 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

completely removing cap.

PRINCIPAL SAFETY STANDARDS

Safety in Welding and Cutting, ANSI Standard Z49.1, from American

Welding Society, 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 Welding and Cut-

ting of Containers That Have Held Hazardous Substances, American

Welding Society Standard AWS F4.1, from American Welding Society,

550 N.W. LeJeune Rd, Miami, FL 33126

National Electrical Code, NFPA Standard 70, from National Fire Protec-

tion Association, Batterymarch Park, Quincy, MA 02269.

Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,

from Compressed Gas Association, 1235 Jefferson Davis Highway,

Suite 501, Arlington, VA 22202.

Code for Safety in Welding and Cutting, CSA Standard W117.2, from

Canadian Standards 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 324A – 10/95

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.

Government Printing 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

establish that 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

understanding does not yet allow us to interpret the evidence in a

single coherent framework. Even more frustrating, it does not yet

allow us 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

complete information.

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

Section 3-1 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.

2 34

5

6

9

7

8

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-Pin Receptacle (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

matching receptacle 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 Interface Panel (Robot Con-

trol Connection)

Receptacle will vary according to

the robot control being used with

the system. Follow connection

directions included with interface

panel kit.

Ref. S-0003-A / ST-800 962-A

8

3

45

6

7

1

B

M

C

N

L

D

RS

K

E

G

J

F

H

P

T

A

2

Example Receptacle

If optional external voltage sensing connections are used,

remove jumper 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

Terminal strip 2T provides connec-

tion points for an optional normally

closed Emergency Stop (E-stop)

push button. To make connections,

proceed as follows.

Remove top cover.

1 Terminal Strip 2T

2 Strain Relief

Loosen strain 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.

Tighten strain 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.

• Pacemaker wearers 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-free location 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

button to 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

length of time. If a value is not pro-

grammed, the gas flows until the

Purge button is released.

This button allows purging of air

from gun 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 Contactor On 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

energizing welding 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

1

2

3

Front Panel

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 Shielding Gas 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

Set All 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 Interface Unit

The interface unit is designed for

use in pulse MIG welding (adaptive

or standard), or MIG welding.

The unit is factory-equipped with

eight programs for pulse MIG weld-

ing (see Figure 5-2). The programs

contain parameters that maximize

welding performance for each com-

bination of 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-

tion is 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

done during 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.

• Control circuit 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 Parameter Display

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.

• Pacemaker wearers 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

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 Mode Select Button

When unit is turned On, Process is

the default mode, at other times,

use mode select button to select

Sequence.

2 Parameter Select 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

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