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NOTES OR PREVENTIVE MEASURES     

                                                                                                                                                                                                 

1. 

Environment 

1

  The  machine  can  perform  in  environment  where  conditions  are  dry  with  a  dampness  level  of 

max 90%. 

2

  Ambient temperature is between -10 to 40 degrees centigrade. 

3

  Avoid welding in sunshine or drippings. Do not let water enter the gas. 

4

  Avoid welding in dust area or the environment with corrosive gas. 

5

  Avoid gas welding in the environment with strong airflow. 

2.  Safety norms 

Our  welding  machine  has  installed  protection  circuit  of  over  voltage,  over  current  and  over  heat. 

When  voltage,  output  current  and  temperature  of  machine  are  exceeding  the  rated  standard, 

welding machine will stop working automatically. Because this will be damage to welding machine, 

user must pay attention to following.   

1

 

The working area is adequately ventilated

 

Our welding machine is powerful machine, when it is being operated, it generated high currents, 

and  natural  wind  cannot  satisfy  with  machine  cool  demands.  So  there  is  a  fan  inside  the 

machine for its cooling demands. Make sure the intake is not in block or covered, There should 

be 0.3 meter distance from welding machine to objects of environment. User should make sure 

the working area is adequately ventilated. It is important for the performance and the longevity 

of the machine.     

2

 

Do not over load

 

The operator should remember to watch the max duty current (Response to the selected duty 

cycle)  Welding  current  should  not  exceed  max  duty  cycle  current.  Over-load  current  will 

damage and burn up the machine. 

3

 

No over voltage

 

Power voltage can be found in diagram of main technical data. Automatic compensation circuit 

of  voltage  will  assure  that  welding  current  keeps  is  in  allowable  range.  If  power  voltage  is 

exceeding  allowable  range  limits,  it  can  damage  the  components  of  machine.  The  operator 

should understand this situation and take preventive measures. 

4

 

There  is  a  grounding  screw  behind  welding  machine,  with  a  grounding  marker  on  it.  Before 

operation,  welding  crust  must  be  grounded  reliably  with  cable  which  section  is  over  6  square 

millimeter, in order to prevent from static electricity, and accidents because of electricity leaking. 

5

 

If welding time is exceeding duty cycle limited, welding machine will stop working for protection. 
Because  machine  is  overheated,  temperature  control  switch  is  on  “ON’’  position  and  the 
indicator  light  is  red.  In  this  situation,  you  don’t  have  to  pull  the  plug,  let  the  fan  cool  the 
machine. When the indicator light is off, and the temperature goes down to the standard range, 

it can weld again. 

Summary of Contents for ARC 400IT

Page 1: ...ARC 400IT WELDING MACHINE USER MANUAL...

Page 2: ...urt or property lose if it is not followed The words after this sign means there is potential risk which may cause equipment fault or break if it is not followed Version Version YF TAE 0097 A0 Release...

Page 3: ...PARAMETERS TABLE 10 INSTALLATION INSTRUCTION 11 OPERATION INSTRUCTION 13 PANEL FUNCTION INSTRUCTION 14 NOTES OR PREVENTIVE MEASURES 15 QUESTIONS TO BE RUN INTO DURING WELDING 16 MAINTENANCE 17 TROUBL...

Page 4: ...cause choke Spark and hot workpiece after welding may cause fire Bad connected cable may cause fire Incompletion connection of workpiece side circuit may cause fire Never weld on the case of tinder st...

Page 5: ...user manual for safety Please follow the rules below to avoid electric shock Keep away from any electric parts Earth the machine and workpiece by professional personnel Cut off the power before instal...

Page 6: ...acilities to prevent hurt or poisoning by gas and other powder please To prevent oxygen deficiency air out the gas filled room which is full of CO2 and argon on the bottom When operating on trunks boi...

Page 7: ...l operate check and maintain the machine by professional person Keep your fingers hair clothes etc away from the switch parts such as the fan The wire end may deal damage please note the following Nev...

Page 8: ...se of industrial equipments e Health of people around Such as personnel using the heart pacemaker or audiphone f Equipments for adjustment and measurement g Anti disturb capability of other used equip...

Page 9: ...harder The welding machine has the following characteristics effective power saving compact stable arc good welding pool high no load voltage and good capacity of force compensation and multi use It...

Page 10: ...15 Frequency Hz 50 60 50 60 Rated input current A 27 7 25 3 No load voltage V 62 68 VRD voltage V 18 Output current A 40 400 Rated output voltage V 36 Force range A 0 100 Duty cycle 40 No load loss W...

Page 11: ...s the work piece 5 Please pay attention to the connecting polarity DC welding machine has two connecting ways positive connection and negative connection Positive connection holder connects with polar...

Page 12: ...12 Installation Diagram Power Supply Workpiece Earth Clamp Electrode Holder...

Page 13: ...ictor is lit and when the switch is put OFF position the VRD indicator is off then the no load voltage is 60 70V Switch of VRD is put inside the machine with the on condition the no load voltage chang...

Page 14: ...Current adjustment knob 2 VRD switch 8 ARC force adjustment knob 3 VRD indicator 9 Hot start adjustment knob 4 Abnormal indicator 10 Positive output terminal 5 Current meter 11 Remote control socket 6...

Page 15: ...orking area is adequately ventilated It is important for the performance and the longevity of the machine 2 Do not over load The operator should remember to watch the max duty current Response to the...

Page 16: ...rom the rated value it will make the output current not matched with rated value when voltage is lower than rated value the max output may lower than rated value C Current is not stabilizing when mach...

Page 17: ...ts If scale and rust are found please clean it and connect again tightly 4 Prevent water and steam from entering into the machine If that happens please blow it dry and check insulation of machine 5 I...

Page 18: ...damaged contact with the supplier or manufacturer Abnormal indicator is on fan is working meter is normal 1 IGBT is damaged 2 Rectifier of quick recovery is damaged 3 Control board is broken 4 The fee...

Page 19: ...4 5 CON12 XH 05 1 2 3 CON10 XH 03 1 2 3 CON8 VH 03 1 2 3 4 CON4 XH 04 1 2 3 4 5 6 CON9 XH 06 1 2 3 4 CON3 VH 04 3 1 2 3 1 2 1 2 3 CON5 VH 03 1 2 3 CON6 XH 03 1 2 CON7 XH 02 1 2 CON15 VH 02 472 3KV 47...

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