ESAB Pulse Analog Robotic Interface Instruction manual

INSTRUCTION MANUAL
PULSE ANALOG
ROBOTIC INTERFACE
APPLICATION: MIG and PULSE MIG WELDING
Analog Item
Robot Interface Number Model
Motoman Pulse 36342 RI-3P
Hitachi Pulse 31678 RI-4P
Kawasaki/Fanuc Pulse 31676 RI-2P
REIS Pulse 0558001377 RI-6P
F-15-081-D
July, 2001
SPECIFICATIONS
Input Requirements ................... 7 amps, 115vac, 50/60 Hz 1 ph
Dimensions Height ............................ 15-1/2" (394mm)
Depth .................................... 8" (200mm)
Width ................................... 13" (330mm)
Weight (approx.) ............... 20 lbs (9.1 kg)
These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and safe practices for electric welding equipment, we urge you to read our booklet, "Precautions and Safe Practices for Arc Welding, Cutting and Gouging," Form 52-529. Do NOT permit untrained persons to install, operate, or maintain this equipment. Do NOT attempt to install or operate this equipment until you have read and fully understand these instructions. If you do not fully understand these instructions, contact your supplier for further information. Be sure to read the Safety Precautions on page 2 and 3 before installing or operating this equipment.
Be sure this information reaches the operator. Extra copies are available through your supplier.
SAFETY PRECAUTIONS
WARNING: These Safety Precautions are for
your protection. They summarize precaution­ary information from the references listed in
Additional Safety Information section. Before performing any installation or operating procedures, be sure to read and follow the safety precautions listed below as well as all other manuals, material safety data sheets, labels, etc. Failure to observe Safety Precautions can result in injury or death.
PROTECT YOURSELF AND OTHERS -- Some welding, cutting, and gouging processes are noisy and require ear protection. The arc, like the sun, emits
ultraviolet (UV) and other radiation and can injure skin and eyes. Hot metal can cause burns. Training in the proper use of the processes and equip­ment is essential to prevent accidents. Therefore:
1. Always wear safety glasses with side shields in any work
area, even if welding helmets, face shields, and goggles are also required.
2. Use a face shield fitted with the correct filter and cover
plates to protect your eyes, face, neck, and ears from sparks and rays of the arc when operating or observing operations. Warn bystanders not to watch the arc and not to expose themselves to the rays of the electric-arc or hot metal.
3. Wear flameproof gauntlet type gloves, heavy long-sleeve
shirt, cuffless trousers, high-topped shoes, and a weld­ing helmet or cap for hair protection, to protect against arc rays and hot sparks or hot metal. A flameproof apron may also be desirable as protection against radiated heat and sparks.
4. Hot sparks or metal can lodge in rolled up sleeves,
trouser cuffs, or pockets. Sleeves and collars should be kept buttoned, and open pockets eliminated from the front of clothing
5. Protect other personnel from arc rays and hot sparks
with a suitable non-flammable partition or curtains.
6. Use goggles over safety glasses when chipping slag or
grinding. Chipped slag may be hot and can fly far. Bystanders should also wear goggles over safety glasses.
FIRES AND EXPLOSIONS -- Heat from flames and arcs can start fires. Hot slag or sparks can also cause fires and ex­plosions. Therefore:
1. Remove all combustible materials well away from the
work area or cover the materials with a protective non­flammable covering. Combustible materials include wood, cloth, sawdust, liquid and gas fuels, solvents, paints and coatings, paper, etc.
2. Hot sparks or hot metal can fall through cracks or
crevices in floors or wall openings and cause a hidden smoldering fire or fires on the floor below. Make certain that such openings are protected from hot sparks and metal.“
3. Do not weld, cut or perform other hot work until the
workpiece has been completely cleaned so that there are no substances on the workpiece which might pro­duce flammable or toxic vapors. Do not do hot work on closed containers. They may explode.
4. Have fire extinguishing equipment handy for instant use,
such as a garden hose, water pail, sand bucket, or portable fire extinguisher. Be sure you are trained in its use.
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5. Do not use equipment beyond its ratings. For example, overloaded welding cable can overheat and create a fire hazard.
6. After completing operations, inspect the work area to make certain there are no hot sparks or hot metal which could cause a later fire. Use fire watchers when neces­sary.
7. For additional information, refer to NFPA Standard 51B, "Fire Prevention in Use of Cutting and Welding Pro­cesses", available from the National Fire Protection Asso­ciation, Batterymarch Park, Quincy, MA 02269.
ELECTRICAL SHOCK -- Contact with live electrical parts and ground can cause severe injury or death. DO NOT use AC welding current in damp areas, if move­ment is confined, or if there is danger of falling.
1. Be sure the power source frame (chassis) is connected to the ground system of the input power.
2. Connect the workpiece to a good electrical ground.
3. Connect the work cable to the workpiece. A poor or missing connection can expose you or others to a fatal shock.
4. Use well-maintained equipment. Replace worn or dam­aged cables.
5. Keep everything dry, including clothing, work area, cables, torch/electrode holder, and power source.
6. Make sure that all parts of your body are insulated from work
and from ground.
7. Do not stand directly on metal or the earth while working in tight quarters or a damp area; stand on dry boards or an insulating platform and wear rubber-soled shoes.
8. Put on dry, hole-free gloves before turning on the power.
9. Turn off the power before removing your gloves.
10. Refer to ANSI/ASC Standard Z49.1 (listed on next page) for specific grounding recommendations. Do not mis­take the work lead for a ground cable.
ELECTRIC AND MAGNETIC FIELDS — May be dangerous. Electric current flow­ing through any conductor causes lo­calized Electric and Magnetic Fields (EMF). Welding and cutting current cre­ates EMF around welding cables and welding machines. Therefore:
1. Welders having pacemakers should consult their physi­cian before welding. EMF may interfere with some pace­makers.
2. Exposure to EMF may have other health effects which are unknown.
3. Welders should use the following procedures to minimize exposure to EMF: A. Route the electrode and work cables together. Secure
them with tape when possible. B. Never coil the torch or work cable around your body. C. Do not place your body between the torch and work
cables. Route cables on the same side of your body. D. Connect the work cable to the workpiece as close as
possible to the area being welded. E. Keep welding power source and cables as far away
from your body as possible.
11/95
FUMES AND GASES -- Fumes and gases, can cause discomfort or harm, particularly in confined spaces. Do not breathe fumes and gases. Shield­ing gases can cause asphyxiation. Therefore:
1. Always provide adequate ventilation in the work area by natural or mechanical means. Do not weld, cut, or gouge on materials such as galvanized steel, stainless steel, copper, zinc, lead, beryllium, or cadmium unless posi­tive mechanical ventilation is provided. Do not breathe fumes from these materials.
2. Do not operate near degreasing and spraying opera­tions. The heat or arc rays can react with chlorinated hydrocarbon vapors to form phosgene, a highly toxic gas, and other irritant gases.
3. If you develop momentary eye, nose, or throat irritation while operating, this is an indication that ventilation is not adequate. Stop work and take necessary steps to im­prove ventilation in the work area. Do not continue to operate if physical discomfort persists.
4. Refer to ANSI/ASC Standard Z49.1 (see listing below) for specific ventilation recommendations.
CYLINDER HANDLING -- Cylinders, if mishandled, can rupture and violently release gas. Sudden rupture of cylin­der, valve, or relief device can injure or kill. Therefore:
1. Use the proper gas for the process and use the proper pressure reducing regulator designed to operate from the compressed gas cylinder. Do not use adaptors. Maintain hoses and fittings in good condition. Follow manufacturer's operating instructions for mounting regu­lator to a compressed gas cylinder.
2. Always secure cylinders in an upright position by chain or strap to suitable hand trucks, undercarriages, benches, walls, post, or racks. Never secure cylinders to work tables or fixtures where they may become part of an electrical circuit.
3. When not in use, keep cylinder valves closed. Have valve protection cap in place if regulator is not con­nected. Secure and move cylinders by using suitable hand trucks. Avoid rough handling of cylinders.
4. Locate cylinders away from heat, sparks, and flames. Never strike an arc on a cylinder.
5. For additional information, refer to CGA Standard P-1, "Precautions for Safe Handling of Compressed Gases in Cylinders", which is available from Compressed Gas Association, 1235 Jefferson Davis Highway, Arlington, VA 22202.
EQUIPMENT MAINTENANCE -- Faulty or im­properly maintained equipment can cause injury or death. Therefore:
perform any electrical work unless you are qualified to perform such work.
2. Before performing any maintenance work inside a power source, disconnect the power source from the incoming electrical power.
3. Maintain cables, grounding wire, connections, power cord, and power supply in safe working order. Do not operate any equipment in faulty condition.
4. Do not abuse any equipment or accessories. Keep equipment away from heat sources such as furnaces, wet conditions such as water puddles, oil or grease, corrosive atmospheres and inclement weather.
5. Keep all safety devices and cabinet covers in position and in good repair.
6. Use equipment only for its intended purpose. Do not modify it in any manner.
ADDITIONAL SAFETY INFORMATION -- For more information on safe practices for elec­tric arc welding and cutting equipment, ask your supplier for a copy of "Precautions and Safe Practices for Arc Welding, Cutting and Gouging", Form 52-529.
The following publications, which are available from the American Welding Society, 550 N.W. LeJuene Road, Miami, FL 33126, are recommended to you:
1. ANSI/ASC Z49.1 - "Safety in Welding and Cutting"
2. AWS C5.1 - "Recommended Practices for Plasma Arc Welding"
3. AWS C5.2 - "Recommended Practices for Plasma Arc Cutting"
4. AWS C5.3 - "Recommended Practices for Air Carbon Arc Gouging and Cutting"
5. AWS C5.5 - "Recommended Practices for Gas Tungsten Arc Welding“
6. AWS C5.6 - "Recommended Practices for Gas Metal Arc Welding"“
7. AWS SP - "Safe Practices" - Reprint, Welding Handbook.
8. ANSI/AWS F4.1, "Recommended Safe Practices for Weld­ing and Cutting of Containers That Have Held Hazardous Substances."
This symbol appearing throughout this manual means Attention! Be Alert! Your safety is
involved.
The following definitions apply to DANGER, WARNING, CAUTION found throughout this manual:
Used to call attention to immediate haz­ards which, if not avoided, will result in immediate, serious personal injury or loss of life.
Used to call attention to potential haz­ards which could result in personal injury or loss of life.
1. Always have qualified personnel perform the installa­tion, troubleshooting, and maintenance work. Do not
Used to call attention to hazards which could result in minor personal injury.
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I. FEATURES
ESAB Analog Robot Interface
In general, these microprocessor controls are de­signed to interface with robot controllers using analog­system programming and are capable of all modes of conventional mig and flux cored welding. The ESAB ANALOG ROBOTIC INTERFACE receives analog parameter inputs from a robot controller, processes these signals and accurately controls the welding power supply and wire feeding system. Other data is exchanged between the ESAB ANALOG ROBOTIC INTERFACE and robot controller such as start/stop signals, shielding gas control, wire touch work, weld enable, etc.
ESAB PULSE Analog Interface
This version of the ESAB Analog Interface offers all of the features above plus “synergic” operation in all Mig modes including Pulsed Mig. This simplifies the opera­tion even further and can actually increase the overall performance of the robot cell. The interface is factory programmed for six (6) materials and five (5) wire sizes; select material type, wire size, Mig mode (short, spray or pulse) and the PULSE INTERFACE automatically sets optimum welding parameters based on wire feed speed.
TEACH Option (for Pulse version only)
This optional kit for the ESAB PULSE analog interface adds the highest degree of flexibility by enabling the user to "teach" the Analog Interface custom synergic pulse parameters for user specific weld applications. Refer to instruction manual F-15-519 Teach Mode Operating Instructions for Pulse Analog Interface.
Also available from ESAB;
ESAB CONVENTIONAL Analog Interface
This version of the ESAB Analog Interface offers simple operation in all modes of conventional MIG welding including flux cored welding with an exceptionally high degree of precision. The welding parameters are set by providing wire speed and voltage signals from the robot. The interface then sets and precisely regulates the actual welding parameters.
2. How To Assemble a Robotic Welding System
Robotic welding systems can become quite complex considering all the equipment required to outfit a work cell. The following lists the main welding equipment items to be considered for operation. Consult your ESAB Sales Literature and the following pages for specific equipment item numbers. Then use this check list to be sure that you have all of the required items.
Figure 1 - Typical Robot System
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EQUIPMENT & HARDWARE CHECK LIST
ESAB Analog Interface .......................................
ESAB Welding Power Source .............................
Voltage Pickup Lead (pulse units only) ...............
Power Source Control Cable ..............................
ESAB EH-10A Wire Feed System ......................
Wire Feed Rolls ..................................................
Motor Extension Cable .......................................
Wire Inlet Guide ..................................................
Wire Outlet Guide ...............................................
Wire Spool Support ............................................
Wire Spool Cover ...............................................
TYPICAL SYSTEM COMPONENTS
Analog Interfaces
31675 Fanuc - Conventional MIG 31677 Hitachi - Conventional MIG 36341 Motoman - Conventional MIG 31676 Kawasaki/Fanuc - Pulse 31678 Hitachi - Pulse 36342 Motoman - Pulse 0558001377 REIS - Pulse 34696 SI - Pulse 34560 Optional Digital DC Ammeter Kit
Interface to Power Source Cables
30686 J1 Control Cable - 6 ft. 30780 J1 Control Cable - 30 ft. 30781 J1 Control Cable - 60 ft. 34070 Pickup Lead (Digipulse only)
Drive Motor & Wire Accessories
679774 EH-10A Digital Motor 49V51 2 Roll Accessory Support 600216 4 Roll Accessory Support 60N90 Insulator Ring (Required) 996808 Motor Control Cable - 25 ft. 996497 EH-10A Motor Mounting Bracket 948259 Spool Spindle Assembly 634288 Reel Support Arm 995570 Coil Adapter 19V89 Coil Adapter HD 20572 CC Torch Adapter 950574 Conduit Assy. 10 ft. 950575 Conduit Connector - Male 679302 Adapter 950576 Conduit Connector - Female 600240 Spool Cover - Clear 34V74 Wire Straightener (order inlet below) 11N53 Inlet Guide 995570 Standard Wire Reel, up to 60 Ibs spools 19V89 H.D. Wire Reel, 65 Ibs coils 600240 Spool Enclosure Kit, 12-in spools
Wire Wiper Accessory
598537 Felt Wiper, pkg. of 10 598764 Wiper Holder 598763 Wiper Holder, used w/opt. wire straight
Wire Conduit ......................................................
Wire Conduit Fittings ..........................................
ESAB Plumbing Box ...........................................
Plumbing Box Cable ...........................................
ESAB Water Cooler ............................................
Water Cooled Welding Torch .............................
Torch Adapter .....................................................
Contact Tips .......................................................
Torch Wire Liner .................................................
ESAB Flowmeter/Regulator ................................
Gas Hoses and Fittings ......................................
Water Hoses and Fittings ...................................
Welding Cables ..................................................
Power Sources (230/460 vac 60 hz.)
31120 Digipulse 450i 31950 SVI450i 36377 V 352 36000 V 452 36004 V 652 cvcc
Water Accessories
34749 PB-3 Plumbing Box 34199 Plumbing Box Cable - 3.5 ft. 34845 Plumbing Box Cable - 25 ft. 33739 WC-8C Upright Water Circulator 33540 WC-9 EHD Water Circulator 40V76 Water Hose - 12.5' 406196 Water Hose - 25' 11N18 Water Hose Coupler 11N16 5/8-18 RH to 1/4 NPT Adapter
Drive Rolls - Two Roll System
2075303 .035" - “V” Hard Wire 2075302 .045" - “V” Hard Wire 19761 .045" - “V” Serrated - Flux core 2075261 .052" - “V” Serrated - Flux core 2075261 .062" - “V” Serrated - Flux core
Drive Roll Kits - Four Roll System
999326 .035" - “V” Hard Wire 999327 .045" - “V” Hard Wire 999330 .045" - “V” Serrated - Flux core 999331 .052" - “V” Serrated - Flux core 999332 .062" - “V” Serrated - Flux core 39N15 Outlet Guide .035" - .062"
Shielding Gas Accessories
21557 R-33 Flow Regulator - Argon Mix 21558 R-33 Flow Regulator - CO2 21505 R-36 Flow Regulator - Argon Mix 999149 R-76 Flow Regulator - CO2 40V77 Gas Hose - 12.5' 19416 Gas Hose - 12.5' Heavy duty for CO2 11N17 Gas Hose Coupler
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Figure 2.
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C. MOUNTING/CONNECTING THE EQUIPMENT
Analog Interface
The operating controls for the ESAB Analog Interface are located on and behind the front cover. The box should be positioned within easy reach of the Robot operator on a vertical surface using the mounting holes provided.
Welding Power Source
The welding power supply should be mounted as close to the robot as posible. Distances less than 20 feet are recommended. The power source must have at least 18" of free air space in all directions to maintain ad­equate unrestricted cooling air flow. Both welding cable leads (torch and work) must be a minimum size of No. 4/0 welding cable, and should be kept as close to the same length as possible. Cables must be run next to each other and tywrapped every couple of feet to minimize cable reactance.
Wire Feed Motor
The wire feed motor & accessory support can be mounted directly on the robot arm or on a stand close to the robot. The shortest possible welding torch is recommenced for best wire feed results.
IMPORTANT: The wire drive motor can be mounted as a left or right hand drive. Once operational, check for proper rotation. If rotation is incorrect, simply re-
verse the orange and blue wires on T1-5 and T1-6.
Wire Delivery System
The wire delivery system, whether it be a spool, coil, reel or drum must be kept as close to the robot as possible. Distances less than 10' are recommended. Every effort must be made to keep the wire delivery system clean and the wire conduit free from twists and sharp bends. IMPORTANT: Wire delivery and feeding is the most frequent encountered problem in MIG welding and is sometimes difficult to uncover.
Plumbing Box
The plumbing box should be mounted directly below the Analog interface with the water cooler.
Once all of the equipment is securely mounted, connect the control cables, hoses and wire hardware as shown in the interconnection diagram titled Typical Robot System (Fig. 1) and the Wire Feed Delivery System (Fig.2).
Figure 3. - Wire Feed Delivery System
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ROBOT to INTERFACE CABLE - J3
In all cases, the control cable from the robot controller to the ESAB Analog Interface (J3) is supplied by the robot manufacturer. The connector and pin configura­tion of this cable has been designed by the robot manufacturer to their specifications. The ESAB Analog Interface receptacle (J3) has been configured to accept the standard control cable from the specified robot. Questions concerning pin configurations should be directed to the specific robot manufacturer.
The following figures are the typical J3 control cable pin configurations for the Motoman, Fanuc, and Hitachi robots.
Additional information on connections and/or adjust­ments can be found as follows:
INSTRUCTION LITERATURE
EH-1OA Digital Welding Head ................... F-12-873
Teach Mode Operating Instructions ........... F-15-519
Figure 4. Motoman J3 Pin Configuration
Figure 5. HITACHI J3 Pin Configuration
Figure 6. FANUC J3 Pin Configuration
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Figure 7. REIS ROBOT INTERFACE
8
7
J3
PIN Designations
Control Cable from Robot
b
c
o
6
5
4
1
10
Fig. 8 - Location Front Panel Controls
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3
III. CONTROL FUNCTIONS & OPERATION
IMPORTANT Some of the controls and features covered follow­ing are not required or used in “all” of the robots, and these exceptions will be specifically noted in the text as they occur.
A. FRONT PANEL CONTROLS
For location of front panel controls, see Fig. 8.
1. Power-Switch. Pulling-out the mushroom-style red button of this switch turns power "on" to the control as indicated by the illuminated display windows. To turn power "off", simply push-in red button and the display windows and control will de-energize.
NOTE: Immediately after the control is turned on,
numbers that identify the EPROM “program” in the control are displayed in the IPM and VOLTS windows. These numbers only ap- pear for one second.
2. PURGE/RESET Switch. A momentary “on” switch, that provides a dual function when actuated.
a. Prior to starting the welding sequence, it actu-
ates the gas solenoid and lets you “purge” the shielding gas line of the torch. At the same time, the IPM and VOLTS windows will also display
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