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INVERTER WELDING (IR)

&

INVERTER Tig + MMA (IRT)

MANUAL

2016

www.sohal.org

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Summary of Contents for IR Series

Page 1: ...INVERTER WELDING IR INVERTER Tig MMA IRT MANUAL 2016 www sohal org ...

Page 2: ...agram of machine Quick know how Installation Guide Using machines Starting work Setting Gas Pre Flow Time Fault Finding Connection Diagram of IR welding machine Connection Diagram of IRT welding machine 3 3 4 5 6 6 7 8 9 10 Page no ...

Page 3: ...rrent Sensor Control Transformer IGBT DRIVER IR series welding machines are based on inverter technology by which the 50 60 Hz input supply is first converted to DC by diodes then filtered by electrolytic capacitors for ripple free pure DC volts then this DC volts are inverted to medium frequency 20KHz AC then step down by small efficient transformer then re converted to Low volt DC suitable for w...

Page 4: ...k lead Or Holder for arc welding Negative output terminal Connect tig torch here Or Work lead for arc welding Torch gas connection Torch plug Argon gas post flow time Adjustment Argon gas inlet Backside 4 This switch has two functions 1 Select Electrode or Tig mode 2 For Argon pre flow set rotate post flow knob in MMA position Screen show pre flow saving when message disappear Set switch to Tig mo...

Page 5: ...Be sure machine body is properly grounded before switching it on Ü Switch off machine during connecting or removal of output leads Ü Throughly tighten the fasteners of output terminals Supply Cable 4 core 2 5 mm sq for IR300 IRT 300 4 core 4 mm sq for IR400 IRT 400 4 core 6 mm sq for IR500 IRT500 Welding or Work cable 35 mm sq for IR300 IRT 300 50 mm sq for IR400 IRT 400 75 or 50 mm sq for IR500 I...

Page 6: ...rch head and tight 2 4 mm outside of ceramic nozzle Ü Connect shielding gas argon at gas inlet nipple backside of machine Ü Switch on mains from socket and from backside MCB Ü Push Gas Check Button from front panel and adjust the gas flow from gas regulator and flow meter according to working conditions Preferably between 2 to 6 liter per minute Ü Program Gas Pre flow time 1 Set TIG MMA switch bac...

Page 7: ...as not properly connected to job Machine is overheated due to working continuously at full or Cooling fan faulty Water is not flowing through torch DCL Transformer or PCB 271C faulty Main Transformer faulty or 12 V fan faulty or PCB276 faulty 12 Volt Fan OR PCB276 The current adjustment knove does not work in proper way and current display does not follow correctly it s movement Welding stops auto...

Page 8: ...iling fan if working in open area shield the job from flowing air Replace torch or torch head Less post flow time Wrong polarity of Tig torch Argon gas problems Like Gas is not pure Blowing wind flows away the gas Fault in torch head Tig Problems Tungsten Electrode being black White ash on job and tungsten electrode burn fast Weld burns 8 ...

Page 9: ...00 PCB255 Capacitive Filter 4K7 Lin T1 Main Transformer Output Terminal Ve Output Terminal Ve DCL1 415 V 3 Ph INPUT Ferrite Beads CONNECTION DIAGRAM OF IR300 400 500 AC 220 V Bridge CT o 90 C 1uf 250 X2 0 1uf 250 X2 220 Volt 14 431 14 July 2014 LINK LINK IGBT DRIVER SET CHOKE Ferrite Beads 4K7 2W 2 X 431 14 2 X 100R 2W 1 275 X2 2 X 100R 2W 1 275 X2 2200 16 NC 4x 100K2W 300A 400A 500A Machine PCB 2...

Page 10: ...Output Terminal Ve DCL1 415 V 3 Ph INPUT Ferrite Beads AC 220 V DC 12 V Bridge CT o 90 C 1uf 250 X2 0 1uf 250 X2 220 14 Machine W Cable 300A 400A 500A 35 mm sq 50 mm sq 70 mm sq CONNECTION DIAGRAM OF IRT300 400 500 Main Transformer PCB278 CN1 CN4 CN5 Torch Plug TIG MMA H F F I L T E R VALVE Ar LINK LINK IGBT DRIVER SET 4x 100K2W PCB216 Note 2 X 431 14 2 X 100R 2W 1 275 X2 2 X 100R 2W 1 275 X2 Fill...

Page 11: ...www sohal org Mfrs SOHAL ELECTRIC WORKS 13243 Link Road Chowk Dholewal Ludhiana 141003 91 161 2532255 2531116 mail sohal org www sohal org 11 ...

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