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250LD3  PART  LIST

No

Part 

Q'ty

No

Part 

Q'ty

1

Main  PCB

1

10

Output  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  Drive  PCB

2

16

TNR

1

8

Input  bridge  diode  /  PCB

1

17

Fuse

1

9

FRD  /  PCB

1

Summary of Contents for Longrun 200LD

Page 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...

Page 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...

Page 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...

Page 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...

Page 5: ...OUTPUT CONNECTION...

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

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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