RWII CONNECTIONS (Continued)
Model 10000ADPConnect the same as described on the previous page except, you will need to connect the small black wire from the jacket to the small black wire on the negative side of the red connector and be sure the machine is set on CV.
Model 10250
Connect the RWII lug to the positive output on the machine then connect the small clamp to the connector from the jacket of the RWII to the negative post on the machine or anywhere along the machine ground. Connect the machine ground to the work piece. Be sure the machine is set on CV/ Constant Voltage.
DC/CC ENGINE DRIVES AND STICK MACHINES
All stick welding machines are CC, constant current. These machines can be difficult to adjust to at first, as the initial voltage spike causes the wire to burn back readily. However, once you have mastered the technique it should be easy to repeat. These power sources will weld aluminum and flux core wire but generally will not have the sustained voltage to run hard wire. Always start with a higher wire speed and adjust down until the arc appears to “ dial in”. The machine will drop from approximately 80 volts to the mid 20 volt range after the initial arc is struck. It is imperative to use the AC/DC Power supply supplied with the RWII and it must be connected in the same polarity as the arc current. Green light for DC+ and red light for DC-. Gas welding is DC+ or ground nega-tive, flux core is DC-or ground positive. Change arc polarity as you would with a welding rod.
Model 10000
This model is not suitable for constant current machines, it can be upgraded at the factory for a fee to include the AC/DC power supply.
Model 10000ADP
Connect RWII positive lug to stinger and the RWII negative lug to ground clamp of the machine or directly to the positive and negative posts. It is imperative that you use the 110 volt AC to 24 volt DC power supply to drive gun controls, these connections must be in the same polarity as the arc current. See illustration on page 12.
Model 10250
Connect the RWII lug to the stinger or directly to the positive output on the machine. It is imperative that you use the 110 volt AC- 24 volt DC Power supply to drive gun controls, these connections must be in the same polarity as the arc current. See illustration on page 13.
IMPORTANT:
1) To compensate for the initial voltage spike on constant current machines ( ie. up to 80 open circuit volts) start with a wire stick out of 2 to 3 times more than usual to compensate for “burn-back”. Pulling the mig nozzle down a little further will also build in extra stick-out. It helps to use the shorter 11 series contact tips, or to cut the 14 series tips shorter as needed. After the arc is struck, arc voltage drops to a manageable level. Be sure that the 110 volt plug on the machine is AC power, some machines have 110 volt DC that will damage the power supply. If the 110 outlet on the machine is DC, batteries can be used for the powering the circuit board and motor. It may be possible to connect to the battery that starts the engine drive, for this you will need to make up two wires that will plug into the receptacles that the AC/DC power supply plugs into at the end of the RWII cable.
2) Since the RWII does not have a contactor, the wire is live. Treat it like using a stick welder and do not ground the spool gun to the work surface. Additionally, fully depress the gun trigger when welding, otherwise when the wire contacts the work it will burn-back if the wire is not feeding.