Summary of Contents for MK Products Cobramatic Pro Series
- Page 1 Cobramatic Pro Series ® Wire Feed Cabinet Owner’s Manual ® Product: Cobramatic Manual: 091-0756 Serial: 20010001 Voltage Rating: 24 VAC/42 VAC 115 VAC/230 VAC Revision: Jan 2020, Rev. A Model Number: 150-008...
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Page 3: Table Of Contents
Table of Contents Safety Guidelines Installation ................Section A Technical Specifications ..................1 Machine Grounding ....................1 Machine Location ....................1 Input Power Connections ..................1 Wire Threading Procedure ................... 2 Welding Gun Connections ................... 3 Operation ................Section B General Description ..................... - Page 4 Declaration of Conformity for European Community (CE) Products Note This information is provided for units with CE certification (see rating label on unit). MK Products, Inc. Manufacturer’s Name: 16882 Armstrong Ave. Irvine, CA 92606 ® Cobramatic Declares that the product:...
- Page 5 SAFETY CONSIDERATIONS ELECTRIC ARC WELDING EQUIPMENT CAUTION : READ BEFORE ATTEMPTING INSTALLATION, OPERATION OR MAINTENANCE OF THIS EQUIPMENT 1-1 INTRODUCTION result in exposure to chemicals known free of oil, grease, and (in electrical parts) to the State of California to cause cancer of metallic particles that can cause short This equipment is intended for ultimate and birth defects or other reproductive...
- Page 6 may cause rupture. Do not allow contents 5. Pressurizing Steps: general rules cover many of the most common situations. to exceed 55 degrees C (130 degrees F.) Drain regulator of residual gas through Cool with water spray where such exposure suitable vent before opening cylinder 1.
- Page 7 that can cause a violent rupture or lead to use additional protective clothing such from bared cable. Cables with damaged as leather jacket or sleeves, flameproof such a rupture later under rough handling. areas may be taped to give resistance apron, and fire-resistant leggings.
- Page 8 For selectinga quality product. We want you to take Thank You pride in operating this product...as much pride as we have in bringing the product to you! Please Examine Carton and Equipment For Damage Immediately When this equipment is shipped, title passes to the purchaser upon receipt by the carrier.
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Page 9: Installation
45psi. Contact the re-circulator manufacturer for specifications on pres- sure. Machine Grounding The Cobramatic Pro Series is grounded with the power source through the input power cable. The power source grounding terminal must be properly connected to electrical ground per the power source operating manual. -
Page 10: Wire Threading Procedure
The end of the hose must have a male connector to fit the female 5/8-18 brass fitting. Use a 11/16” wrench to tighten. Coolant Supply and Return for Water Cooled Guns Using a recirculator with properly mixed coolant, as previously described, connect the coolant RETURN hose to the left middle fitting on the power block. -
Page 11: Welding Gun Connections
To change this setting, it is easily done without the spool of wire on the spin- dle. Remove the wire spool retainer nut and re-install it reversed back onto the Spindle Tension Knob (Fig. 3). In the “Tool Mode”, the square shaped end of the retainer fits onto the Knob. -
Page 12: Operation
Gas Inlet Front panel access to attach gas hose to bottom fitting of power block. Work Cable (Ground) Connect a work lead of sufficient size and length between the proper output stud on the power source and the work. Be sure the connection to the work ground makes tight metal to metal electrical contact. - Page 13 Wire Size Selector Switch The wire size selector switch changes the torque of the slave motor for the wire you are using. When in the .030-.035 aluminum only position, the slave motor produces approximately 1 1/2 lbs/inch of torque and approximately 4 1/2 lbs/inch when in the all other wires position.
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Page 14: Posa Start Operating Procedure
wire feed LED (L2) and yellow Gas Solenoid LED (L1). Adjust pot screw as necessary. Rows 1 & 3: 0.25 sec. fixed Rows 3 & 5: 0-1 sec. Rows 5 & 7: 0-5 sec. Figure 6a Post-Purge Settings & Adjustments (JP1) The Post-Purge Jumper/Pot Configuration at JP1 has 2 available settings: 2 sec. -
Page 15: Remote Operation
feed speed is automatically changed from the slow run-in speed to the weld- ing speed set on the gun potentiometer. ® The Posa Start feature allows the Cobramatic Pro Series feeder and gun to be used in conjunction with constant current DC welding power sources of open circuit voltage in excess of 55 volts - also, any constant voltage welding power source capable of a minimum of 50 amps. -
Page 16: Optional Kits
Section C Optional Kits The following is a list of Optional Power Supply Interface Cable Kits available for the Cobramatic ® Pro Series Wire Feeder. 8ft Interface Cable for Miller 14-Pin, 24VAC ........005-0816 25ft Interface Cable for Miller 14-Pin, 24VAC ........005-0817 8ft Interface Cable for Miller 14-Pin, 115VAC ........005-0316 25ft Interface Cable for Miller 14-Pin, 115VAC ........005-0658 When properly connected, these interface cables will supply all the neces-... -
Page 17: Testing The Gun
Testing the Speed Control NOTE: The gun should be tested prior to testing circuitry on the main board. Gun amphenol must be connected to the Cobramatic ® Pro Series cabi- net to perform the following tests. To test the motor voltage circuit and measure how much voltage is being delivered to the gun motor, place a voltmeter across diode test points TP1 &... -
Page 18: Troubleshooting
Section E Troubleshooting Troubleshooting Symptom Cause Remedy No wire feed at gun, feeder not oper- F1 & F2 fuse(s) in feeder failed. Check AC circuit. Replace fuse(s). ating, i.e., no slave motor or brake F3 (4 amp) fuse in feeder failed. Check motor leads for shorts then solenoid. -
Page 19: Diagrams/Parts List
Section F Appendices Diagrams/Parts List Main PC Board Connections ............12 Main PC Board: Jumper Functions ........... 13 Cabinet and Connections ............15 Cabinet Assembly ................16 003-2454 Control Module Assembly ..........17 003-2078 Slave Motor Assembly ............18 003-2451 Power Block Assembly, MK Connection ......19 003-2455 Spindle Brake Assembly ........... -
Page 20: Main Pc Boards
Main PC Board Connections Int/Ext. Adj. Gas Post-Purge Jumper Remote Post-Purge Trim Pot Torch Select Input/Output Posa Start “on” Pre-Purge Trim Pot Trigger “on” (blue) Adj. Gas Pre-Purge Jumper Digital Meter (green) Adjustment Front Panel Gas Purge Jumper Test Point - MTR VDC Gas Solenoid Test Point - GROUND Gas “on”... -
Page 21: Main Pc Board: Jumper Functions
Main PC Board: Jumper Functions JP1: Post-Purge Settings & Adjustments Top/Middle: 2 sec fixed Middle/Bottom: 0-5 sec. The Post-Purge Jumper/Pot Configuration at JP1 has 2 available settings: 2 sec. fixed and variable from 0-5 seconds. By default, the two-pin jumper across the top-and-middle pins, is configured for 2 sec. Just to the left of the jumper is a ¾-turn pot, P1, which is used with the variable setting. - Page 22 JP5: Int/Ext JP5 is for the internal or external demand signal for a potentiometer controlled outside the wirefeeder. Mainly for use during wheel welding, or automatic track welding. JP6: Torch Select Location 9-10: Location 1-2: Location 3-4: Location 7-8: Location 5-6: For Calibration Python/CobraMAX/ Prince XL...
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Page 23: Mechanical
Cabinet and Gun Connections Air Cooled Connections Power Power Gas In Gas Out Cable to Gun Water Cooled Connections Power In Water In Power Cable Gas In Gas Out to Gun Cobramatic ® Pro Series Owner’s Manual - Page 15... -
Page 24: Cabinet Assembly
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Page 25: 003-2454 Control Module Assembly
Cobramatic Pro Series Control Module Assembly ® P/N 003-2454 DISCLAIMER Individual components shown in the exploded parts drawing may not necessarily appear like the true components used. This drawing is for reference only. Control Module Assy No. Qty. Part No. Description 003-2396 Assy PCB Front 301-0023 Grommet Panel Mount... -
Page 26: 003-2078 Slave Motor Assembly
Cobramatic Pro Series Slave Motor Assembly ® P/N 003-2078 Cobramatic ® Pro Series Owner’s Manual - Page 18... -
Page 27: 003-2451 Power Block Assembly, Mk Connection
Cobramatic Pro Series Power Block Assembly ® MK Products Connection P/N 003-2451 Power Block Assy No. Qty. Part No. Description 003-1243 Assy Sensor Posa-Start 313-0021 Stud Receiver 329-0054 Screw Hex 3/8 -16 x 5/8 331-0002 Washer Flat #6 ST 331-0777 Washer Flat 0.391 ID x 0.875 OD... -
Page 29: 003-2452 Gas Solenoid Assembly, Mk Connection
Cobramatic Pro Series Gas Solenoid Assembly, ® MK Connection, P/N 003-2452 Gas Solenoid Assy Qty. Part No. Description 153-0853 Term Conn Crimp Socket 153-0868 Conn 3 Pos 185-0476 Term Fel 1/4 x 18-22 GA Full Ins 561-0017 Solenoid Gas 24V 753-0114 Adapter 1/8 NPT x 1/8 NPS 753-3285 Adapter FE 5/8-18 to Male 1/8 NPT 1.25 FT 844-0089 Cable 22 GA/2 CNDT... -
Page 30: 071-0413 Block Diagram
Cobramatic ® Pro Series Block Diagram P/N 071-0413 Cobramatic ® Pro Series Owner’s Manual - Page 22... -
Page 31: 071-0400 Main Pc Board
Cobramatic Pro Series Main PC Board ® P/N 071-0400 Cobramatic ® Pro Series Owner’s Manual - Page 23... - Page 32 Cobramatic Pro Series Main PC Board ® P/N 071-0400 Cobramatic ® Pro Series Owner’s Manual - Page 24...
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Page 33: 071-0412 Gun And Front Panel Connections
Cobramatic Pro Series ® Gun and Front Panel Connections P/N 071-0412 Cobramatic ® Pro Series Owner’s Manual - Page 25... -
Page 34: Electrical
INPUT / OUTPUT CONFIGURATION FOR TB1 Monitor Wire Feed Speed Use digital volt meter between: TB1 – 1(GND) and TB1 – 2(MSPD). Measured value defined as: Reading x 100 = Wire Feed Speed. Example: 3.54 VDC is equivalent to 354 IPM MSPD VOLT METER Remote/External Trigger... - Page 35 Torch Pot Output Some power supplies can utilize a variable DC voltage signal from the gun potentiometer adjustment as their external voltage control. Adjusting the potentiometer at the gun will give 0 to 10VDC output between TB1 – 1 (GND) and TB1 –...
- Page 36 Manual Gas Purge Jumper from TB1-7 to TB1-1 to externally operate the gas solenoid in the cabinet. Cobramatic ® Pro Series Owner’s Manual - Page 28...
- Page 37 Cobramatic ® Pro Series Owner’s Manual - Page 29...
- Page 38 Cobramatic ® Pro Series Owner’s Manual - Page 30...
- Page 39 16882 Armstrong Ave Irvine, CA 92606 Tel (949) 863-1234 Fax (949) 474-1428 www.mkproducts.com August 1, 2010...
- Page 40 16882 Armstrong Ave. Irvine, California 92606 Tel 949.863.1234 Fax 949.474.1428 www.mkproducts.com...
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