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CONNECTING THE WIRE-FEEDER/GENERATOR INTERCONNECTION CABLE 

This cable connects the welding machine to the wire-feeder. 

WARNING:  Do not disconnect the wire-feeder until the 
machine has been switched off (see paragraph “Alarm con-
ditions”). 

 

DIRECT-POLARITY welding 

Connect up the interconnection cables (power cable, ancillary 

wiring and gas tube) to the special attachments and couplings 

shown in

 Figure 1

.

 

The delivery and return  water tubes, used for cooling the 
torch of the welding machine, are part of the interconnection 
cable and should be connected as follows: 
interconnection cable on generator side: connect up air plug 
and welding cable (positive) to their rapid couplings; 
wire feeder side connecting cable: connect up air plug, air 
pipe and welding cable (positive)  to their rapid couplings 
(

Figure 1

);

 

 

Figure 1

 

 

Summary of Contents for NBM-500L

Page 1: ...stic front frames Robust handles built into the chassis Control panel protected against accidental impact Synergic digital control of all the welding parameters BURN BACK control At the end of each weld in any con dition and with any material the digital control ensures a perfect wire cut prevents the typical wire globule from forming and ensures correct arc restriking Spatter free exceptional wel...

Page 2: ...tion grilles are open and that there are no objects obstructing the free flow of air Strap the system safely and securely in the slings working from the bottom then lift up from the ground NBM 500L The welder has two handles to carry it around manually Wire feeder The wire feeder has a handle and a tray so that it can be hung up NOTE Do not use other equipment to lift or transport the feeder The i...

Page 3: ...r cable ancillary wiring and gas tube to the special attachments and couplings shown in Figure 1 The delivery and return water tubes used for cooling the torch of the welding machine are part of the interconnection cable and should be connected as follows interconnection cable on generator side connect up air plug and welding cable positive to their rapid couplings wire feeder side connecting cabl...

Page 4: ...ecting cable as shown in Figure 3 Gas cylinders are supplied with a pressure reducer to adjust pressure of the gas used for welding connect up the earthing system cable to the rapid coupling marked by a negative symbol and then the relevant earth clamps to the piece being welded or to its support in an area free from rust paint and grease Using particularly long earthing cables reduces the voltage...

Page 5: ...der arm making sure the wire goes into the slot of the drive roll If necessary adjust the pressure between the rolls with the screw provided Pos 5 Figure 4 The correct pressure is the minimum that does not allow the rolls to skid on the wire Excessive pressure will case de formation of the wire and tangling on the entrance of the sheath insufficient pressure can cause irregular welding Unscrew the...

Page 6: ...oupling straightpolarity Pos 7 AC36V output power Figure 8 Figure 9 Pos 1 Current encoder knob Pos 2 Voltage encoder knob Pos 3 Wire feeding key Pos 4 MIG MAG welding torch Pos 5 Water tube Pos 6 Water tube Pos 7 Water tube Pos 8 Water tube Pos 9 Gas tube Pos 10 Communication interface Pos 11 Straightpolarity Command and control units NBM 500L Command and control units wire feeder ...

Page 7: ...Figure 10 Figure 11 Pos 1 Water shortage light Pos 2 Power indicator light Pos 3 Power switch Pos 4 Water tube Pos 5 Water tube Command and control units wire feeder ...

Page 8: ...Back key Pos 4 This key is used to access the last page Wire feeding test key Pos 5 While system operates in GMAW mode this key is used to test wire feeding function Gas test key Pos 6 While system operates in GMAW mode or TIG mode this key is used to test gas function ENCODER knob and ENCODER key Pos 7 ENCODER knob is used to change parameter values or switch selected options ENCODER key are equa...

Page 9: ...screen before welding starts The values of the welding current being used for weld ing and the welding voltage will appear on the displays during the welding process Table 3 Special functions NOTE Press the More parameters key to access more pa rameters page A brief description of parameters that could be changed follows Hot start i e overcurrent being supplied when the arc is switched on Hot star...

Page 10: ...one of these sizes are changed the others automatically change in synergy Set the welding current and welding voltage by adjusting the panel on main engine or wire feeder When setting the welding current value the value of wire feeding velocity and material thickness will be dis played on the screen Connect up the welding cables following description given in paragraph Connecting the welding MIG M...

Page 11: ...ing from 0 to 6 seconds with a 0 1 seconds interval for adjustment 11 Spot time Time needed for spot welding after press ing the torch key after which the arc automatically switches off from 0 1 to 20 seconds with a 0 1 seconds interval for ad justment 12 Dual frequency Establishes the dual impulse fre quency from 0 to 5 Hz with a 0 1 Hz interval for adjustment 13 Dual dynamic the dual pulse peak ...

Page 12: ...ING MODE GMAW Manual GMAW synergic GMAW Single GMAW Dual 2T 4T Spot Special 4T Inductance Gas pre flow Run in speed Hot start Start current Start voltage End current End voltage Burn back Gas post flow Spot time Dual frequency Dual dynamic ...

Page 13: ...mpletely electronic Proceed as described to keep the machine in good working order Periodic removal of accumulated dirt and dust from the in side of the device using compressed air Do not aim the air jet directly onto the electrical components in order to avoid damaging them Make periodical inspections in order to individuate worn ca bles or loose connections that are the cause of overheat ing TOR...

Page 14: ...STEP 1 Install the water tank STEP 2 Install the main engine STEP 3 Install the wire feeder lnstallation illustration ...

Page 15: ... in same colour with one water tube Pos 3 Connect the gas connecter to gas cylinder Pos 4 Pos 7 Connect the two communication interface with communication cable Pos 5 Pos 8 Connect the two straight polarity connect ers with one power cable Pos 6 Pos 9 Connect the water tank power cable Pos 9 to the power socket Pos 6 ...

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