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General Safe Practices

■ Wear approved safety glasses with side shields under your welding helmet or face shield and at all 

times in the work area.

■ When working  above  floor level,  use  a safety  belt to protect  yourself  from  a fall  should you get  a 

shock.

■ Do not install or place machine on or over combustible surfaces.

■  Be  sure  that  all  installation,  operation,  maintenance  and  repair  procedures  are  performed  only  by 

qualified persons.

Electric shock can kill.

■ Wear Dry, hole-free insulating gloves and body protection. Do not touch electrode with bare hand.

Do not wear wet or damaged gloves.

■ Do not touch live electrical parts.
■ Never dip the electrode in water for cooling.
■ Properly install and ground all equipment.
■ Protect yourself from electric shock by insulating yourself from work and ground. Use non-flammable, 

dry  insulating  material  if  possible,  or  use  dry  rubber  mats,  dry  wood  or  plywood,  or  other  dry 
insulating material big enough to cover your full area of contact with the work or ground, and watch 
for fire.

■ Turn off input power using the disconnect switch at the fuse box before working on the equipment.
■ Frequently inspect input power cord for damage or bare wiring and repair or replace cord immediately 

if damaged.

Fumes and gases can be dangerous.

■ Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and gases. 

When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at the arc to 
keep fumes and gases away from the breathing zone.

■ Use enough forced ventilation or local exhaust (forced suction) at the arc to remove the fumes from 

your breathing area.

■ Use a ventilating fan to remove the fumes from the breathing zone and welding area.

Arc rays can burn eyes and skin.

■ Use welding helmet with correct shade of filter to protect your eyes from sparks and the rays of the 

arc.

■  Wear  welders  cap  and  safety  glasses  with  side  shields.  Use  ear  protection  when  welding  out  of 

position or in confined spaces. Button shirt collar.

■ Wear complete body protection. Wear oil-free protective clothing such as leather gloves, heavy shirt, 

cuffless pants and high boots.

Welding sparks can cause fire or explosion.

■ Remove fire hazards from the welding area. If this is not possible, cover them to prevent the welding 

sparks from starting a fire. Remember that welding sparks and hot materials from welding can easily 
go through small cracks and opening to adjacent areas. Avoid welding near hydraulic lines.

■  When  not  welding,  make  certain  no  part  of  the  electrode  circuit  is  touching  the  work  or  ground. 

Accidental contact can cause overheating and create a fire hazard.

Содержание Longrun 200LD

Страница 1: ...ES Processes INVERTER DC STICK WELDING MACHINE LD SERIES OPERATION MANUAL DO NOT INSTALL OPERATE OR MAINTAIN THIS MACHINE WITHOUT RE ADING THIS MANUAL AND PLEASE ALWAYS THINK BEFORE YOU ACT www worldw...

Страница 2: ...phase 380V Optional Single Three Phase 220 380 440V 50 60Hz Input capacity KVA 6 5 7 5 8 9 11 5 17 5 23 5 Open circuit voltage V 74 5 73 79 74 5 81 5 92V 380V Input Output current A 20 185 20 200 20...

Страница 3: ...iately if damaged Fumes and gases can be dangerous Welding may produce fumes and gases hazardous to health Avoid breathing these fumes and gases When welding keep your head out of the fume Use enough...

Страница 4: ...less humidity dirt and dust protecting from influence of direct sunlight wind and rain not generated oil vapor and corrosive gas operating temperature range is from 10 to 40 least 30 away from wall a...

Страница 5: ...OUTPUT CONNECTION...

Страница 6: ...FRONT PANEL 200LD2 3 200LD 230LD...

Страница 7: ...250LD3 300LD3 400LD3 500LD3...

Страница 8: ...any electrical problems 7 Current Volume Adjust the welding current 8 Electric shock prevention device ESPD electric shock prevention function is to prevent user s electric shock by cutting off short...

Страница 9: ...ut bridge diode PCB 1 2 Capacitor 1 10 FRD PCB 1 3 Circuit Breaker 1 11 Output terminal 2 4 Auxiliary transformer 1 12 Choke transformer 1 5 Volume knob 1 13 Main transformer 1 6 Switch 1 14 FAN 1 7 T...

Страница 10: ...ut bridge diode PCB 1 2 Capacitor 1 10 FRD PCB 1 3 Circuit Breaker 1 11 Output terminal 2 4 Auxiliary transformer 1 12 Choke transformer 1 5 Volume knob 1 13 Main transformer 1 6 Switch 1 14 FAN 1 7 T...

Страница 11: ...1 9 FRD PCB 1 2 Capacitor 1 10 Output terminal 2 3 Circuit Breaker 1 11 Choke transformer 1 4 Auxiliary transformer 1 12 Main transformer 1 5 Volume knob 1 13 FAN 1 6 Temp sensor 1 14 Cable lock 1 7 I...

Страница 12: ...1 9 FRD PCB 1 2 Capacitor 1 10 Output terminal 2 3 Circuit Breaker 1 11 Choke transformer 1 4 Auxiliary transformer 1 12 Main transformer 1 5 Volume knob 1 13 FAN 1 6 Temp sensor 1 14 Cable lock 1 7 I...

Страница 13: ...ut bridge diode PCB 1 2 Capacitor 1 10 FRD PCB 1 3 Circuit Breaker 1 11 Output terminal 2 4 Auxiliary transformer 1 12 Choke transformer 1 5 Volume knob 1 13 Main transformer 1 6 Switch 1 14 FAN 1 7 T...

Страница 14: ...ut bridge diode PCB 1 2 Capacitor 1 10 FRD PCB 1 3 Circuit Breaker 1 11 Output terminal 2 4 Auxiliary transformer 1 12 Choke transformer 1 5 Volume knob 1 13 Main transformer 1 6 Switch 1 14 FAN 1 7 T...

Страница 15: ...terminal 2 2 Capacitor 1 11 Choke transformer 1 3 Circuit Breaker 1 12 Main transformer 1 4 Auxiliary transformer 1 13 FAN 1 5 Temp sensor 1 14 MF Capacitor 2 6 IGBT 2 15 Input terminal 1 7 IGBT Driv...

Страница 16: ...terminal 2 2 Capacitor 1 11 Choke transformer 1 3 Circuit Breaker 1 12 Main transformer 1 4 Auxiliary transformer 1 13 FAN 1 5 Temp sensor 1 14 MF Capacitor 2 6 IGBT 2 15 Input terminal 1 7 IGBT Driv...

Страница 17: ...terminal 2 2 Capacitor 1 11 Choke transformer 1 3 Circuit Breaker 1 12 Main transformer 1 4 Auxiliary transformer 1 13 FAN 1 5 Temp sensor 1 14 MF Capacitor 2 6 IGBT 2 15 Input terminal 1 7 IGBT Driv...

Страница 18: ...terminal 2 2 Capacitor 1 11 Choke transformer 1 3 Circuit Breaker 1 12 Main transformer 1 4 Auxiliary transformer 1 13 FAN 1 5 Temp sensor 1 14 MF Capacitor 2 6 IGBT 2 15 Input terminal 1 7 IGBT Driv...

Страница 19: ...y 1 18 Resistance 2 5 Circuit Breaker 1 19 IGBT Snubber PCB 2 6 Meter PCB 1 20 IGBT 2 7 Fuse 1 21 IGBT Drive PCB 2 8 Volume knob 1 22 Temp sensor 1 9 Switch 1 23 Bridge diode 1 10 MF Capacitor 4 24 Ma...

Страница 20: ...y 1 18 Resistance 2 5 Circuit Breaker 1 19 IGBT Snubber PCB 2 6 Meter PCB 1 20 IGBT 2 7 Fuse 1 21 IGBT Drive PCB 2 8 Volume knob 1 22 Temp sensor 1 9 Switch 1 23 Bridge diode 1 10 MF Capacitor 4 24 Ma...

Страница 21: ...y 1 18 Resistance 2 5 Circuit Breaker 1 19 IGBT Snubber PCB 2 6 Meter PCB 1 20 IGBT 2 7 Fuse 1 21 IGBT Drive PCB 2 8 Volume knob 1 22 Temp sensor 1 9 Switch 1 23 Bridge diode 1 10 MF Capacitor 4 24 Ma...

Страница 22: ...y 1 18 Resistance 2 5 Circuit Breaker 1 19 IGBT Snubber PCB 2 6 Meter PCB 1 20 IGBT 2 7 Fuse 1 21 IGBT Drive PCB 2 8 Volume knob 1 22 Temp sensor 1 9 Switch 1 23 Bridge diode 1 10 MF Capacitor 4 24 Ma...

Страница 23: ...Where Purchased Where you use Whenever you request replacement parts or information on this machine always supply the information you have recorded above The date number is especially important when...

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