Welding machine NBM280-NBM350-NBM500

Installation Precautions
＞Input voltage: AC3~380V ±10%, 50/60Hz
＞Input cable: ≥6.0mm², length ≤10m
＞Distribution switch: 63A
＞Output cable: 50mm², length≤10m, welding torch length≤3m
＞Ambient temperature: -10℃~+4℃
＞Use environment: the air inlet and outlet can not be blocked, no direct sunlight exposure, pay attention to dust
＞Cylinder installation: fixed firmly, avoid collision, place in a cool place, do not expose to the sun

Features of Welding machine NBM280-NBM350-NBM500

＞PWM wire feeding circuit adopts high stable power supply, wire feeding is stable

＞Using IGBT soft switching inverter technology, beautiful shape

＞Small size, light weight, high efficiency and energy saving, high load duration

＞Perfect protection circuit and fault display function, safe and reliable

＞Closed-loop control, strong arc self-adjustment ability, stable welding process

＞Adopt all-digital structure, high integration, low failure rate of the whole machine

＞Small welding spatter during short-circuit transition, nearly spatter-free during pulse welding

＞Welding process storage and recall function, software upgrade can support special process >Humanized, beautiful appearance design, more convenient operation

＞Three-proof design for key components, suitable for various harsh environments, stable and reliable operation

Product parameters of Welding machine NBM280-NBM350-NBM500

Product Type	NBM-280	NBM-350	NBM-500
Input Power Source	Three-phase 380V	Three-phase 380V	Three-phase 380V
Rated Input Capacity	10.9KVA	15.5KVA	27.5KVA
Inverting Frequency	20KHZ	20KHZ	20KHZ
No-Load Voltage	54V	60V	72V
Duly Cycle	80%	60%	60%
Voltage Range	14-35V	14-40V	14-50V
Electrode Diameter	0.8-1.2mm	0.8-1.2mm	0.8-1.6mm
Efficiency	80%	80%	80%
Insulation Class	Class F	Class F	Class F
Dimensions	650X335X575mm	650X335X575mm	650X335X575mm
Weight	34.5KG	35KG	36.5KG

Welding machine external connection diagram

Panel function description of Welding machine NBM280-NBM350-NBM500

Area	Keys, Indicators, Encoder Names
Area A	A1: Channel loop button	A2: Save button	A3: Wire diameter cycle selection button
A4: Mode cycle selection button	A5: Welding material cycle selection button	A6: Type cycle selection button
Area A	B1: Call button	B2: Check gas button	B3: Unified button
Area C	C1: Process left button	C2: Front air indicator light	C3: Arc ignition indicator
C4: Inductance indicator light	C5: Peak/Thrust Current Indicator	C6: Duty cycle indicator
C7: Frequency indicator	C8: Welding indicator light	C9: Arc end indicator
C10: Burn back indicator	C11: Rear air indicator light	C12: Process right shift button
Area D	D1: Channel digital display	D2: Current display meter	D3: Voltage display meter
Area E	E1: Current encoder	E2: Voltage encoder

Instructions of Welding machine NBM280-NBM350-NBM500

Button	Operation and Display Instructions
A1	Switch 0-9 channel change; cycle change; channel digital display table: display the number of channels;
A2	The existing current and voltage parameters can be stored in the existing channel number channels; the previous stored parameters are cleared every time they are stored; the digital display meter flashes for two seconds;
A3	Select various welding wire diameters cyclically, if Φ0.8\Φ1.0\Φ1.2\Φ1.6 is successfully selected, the wire diameter indicator lights up;
A4	Cycle to select various welding methods, non-self-locking (2 steps) \ self-locking (4 steps) \ preheating self-locking \ spot welding; preheating self-locking refers to self-locking with initial control, also known as special 4 steps. If the selection is successful, the mode indicator lights up;
A5	Cycle selection of welding wire material, carbon steel\silicon aluminum\magnesium aluminum\stainless steel\copper, special program for NBM-280, 350 sheet (aluminum-silicon, aluminum-magnesium indicator lights flashing), aluminum-silicon 4043 commonly used for welding, aluminum-magnesium 5356;
A6	Cycle to select the welding form, manual welding \ gas shielded welding \ single pulse welding \ double pulse welding \ parameter setting, long press the type key for 5 seconds in the double pulse mode, you can enter the setting mode;
B1	It means that when the corresponding current and voltage matching parameters are stored in a certain channel, it can be called and used by pressing the recall button; the given encoder on the calling status panel and the given potentiometer of the wire feeder cannot be controlled; Exit the calling state, and the preset parameters are changed to the actual preset parameters;
B2	Realize gas detection when pressed; adjust the gas flow in the state of gas detection;
B3	When it is pressed to switch, its indicator lights up as a unified control mode, the current encoder controls the welding current, and the welding voltage is automatically matched; while the voltage encoder is called voltage compensation fine-tuning, also known as arc length compensation adjustment, and the adjustment range is - When the 5V~+5V indicator light is off, it is in separate control mode;
C1/C12	Under the premise of corresponding to each selection function, press the left or right button of the process, the corresponding relevant lights in the process indicator can be lit, and the corresponding existing parameter values will be displayed on the digital display;
E01	Adjust the parameters corresponding to the current digital display meter and the item number when setting;
E02	Adjust the parameters corresponding to the voltage digital display in all states;

Specification for welding of aluminum of Welding machine NBM280-NBM350-NBM500

＞High purity argon. Wire pressing wheel, wire feeding wheel U-groove. The torch contact tip should be 50 wires larger than the wire diameter (aluminum will expand when heated)

＞Wire feed hose Teflon/graphite, plug in the position where the wire feed roll comes out. The method of pushing from right to left is adopted, otherwise the gas protection during welding will be poor, and the weld will be black.