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INVERTER DC STICK WELDER
OPERATION MANUAL
MODEL
UNIT
INPUT VOLTAGE
FREQUENCY
Hz
INPUT CAPACITY
KVA
NO LOAD VOLTAGE
CURRENT RANGE
A
VOLTAGE RANGE
DUTY CYCLE
%
WEIGHT
kg
DIMENSION
mm
(W×D×H)
DO NOT INSTALL, OPERATE OR MAINTAIN THIS MACHINE WITHOUT READING THIS MANUAL AND
PLEASE ALWAYS THINK BEFORE YOU ACT.
250LD2
V
9
V
80
20~250
V
27
15
www.worldwel.com
250LD2, 300LD2
220, Single phase
50/60
60
210x460x300
300LD2
11
82
20~300
29
16.5
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Related Manuals for Longrun 250LD2
Summary of Contents for Longrun 250LD2
- Page 1 INVERTER DC STICK WELDER 250LD2, 300LD2 OPERATION MANUAL MODEL UNIT 250LD2 300LD2 INPUT VOLTAGE 220, Single phase FREQUENCY 50/60 INPUT CAPACITY NO LOAD VOLTAGE CURRENT RANGE 20~250 20~300 VOLTAGE RANGE DUTY CYCLE WEIGHT 16.5 DIMENSION 210x460x300 (W×D×H) DO NOT INSTALL, OPERATE OR MAINTAIN THIS MACHINE WITHOUT READING THIS MANUAL AND PLEASE ALWAYS THINK BEFORE YOU ACT.
- Page 2 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. ■...
- Page 3 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.
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Page 4: Warning Lamp
● CONNECTION ● FRONT CONTROL PANEL ① POWER LAMP ② WARNING LAMP ③ VOLTAGE REDUCING DEVICE LAMP ④ VOLTAGE REDUCING DEVICE SWITCH ⑤ AMMETER (DIGITAL DISPLAY) ⑥ OUTPUT CURRENT CONTROL... - Page 7 250LD2 PARTS LIST *Description can be changed by LOT number PART NAME DESCRIPTION QTY. MainPCB WAM-02 Condensor 2700/400V 2P-80A Control Transformer 5725 Temp. Switch IGBT 600V,100A IGBT Drive PCB WGE-01 Input Bridge Diode/PCB SDH100B-16 Output Diode PCB WDO-10 Output Terminal...
- Page 10 300LD2 PARTS LIST *Description can be changed by LOT number PART NAME DESCRIPTION QTY. Main PCB WAM-02 Condensor 3300/400V 2P-80A Control Transformer 5725 Temp. Switch IGBT 600V,150A IGBT Drive PCB WGE-01 Input Bridge Diode/PCB SDH100B-16 Output Diode PCB WDO-06 Output Terminal MJ-133 Choke Transformer 300LD2...
- Page 13 300LD2 (220/440V) PARTS LIST *Description can be changed by LOT number PART NAME DESCRIPTION QTY. Main PCB WAM-02 Condensor 2200/400V 3P-80A Control Transformer 7630 Temp. Switch IGBT LUH150G602Z IGBT Drive PCB WGE-01 Input Bridge Diode/PCB DF75LA80 Output Diode PCB WDO-06 Output Terminal MJ-133 Choke Transformer...
- Page 14 Thanks for purchasing our machine Please fill out below form for future reference. This information can be found on the Nameplate of your machine. Product Name INVERTER DC STICK WELDER Model Number Date Manufactured Serial Number Date Purchased Where Purchased Where you use Whenever you request replacement parts or information on this machine, always supply the information you have recorded above.