Raider RD-IW27 User Manual page 13

compact in volume, light in weight, easy to install and operate.
3. Installation instruction
with the ground. Put the fastening plug into the fastening socket at the "-" terminal and fasten it clockwise.
3.4. Put the fastening plug of the cable to fastening socket of "+" terminal at the front panel, fasten it
clockwise, and the earth clamp at the other terminal clamps the work piece.
3.5. Please pay attention to the connecting terminal, DC welding machine has two connecting ways:
positive connection and negative connection. Positive connection: holder connects with "-" terminal, while
work piece with the "+" terminal. Negative connection: work piece with the"-" terminal, holder with the "+"
terminal. Choose suitable way according to the working situation. If unsuitable choice is made, it will cause
unstable arc, more spatters and conglutination. If such problems occur, please change the polarity of the
fastening plug.
3.6. According to input voltage grade, connect power cable with power supply box of relevant voltage
grade. Make sure no mistake is made and make sure the voltage difference is among permission range.
After the above job, installation is finished and welding is available.
!!! If distance of work piece and machine is too far (10-50m), and the cables (torch cable and earth cable)
are too long, please choose cable of bigger section to minimize the reduction of the voltage.
4. Operation
4.1. Turn on the power switch, the screen will show set current value and ventilator is beginning to run.
4.2. Adjust knobs of welding current and arc-striking push, make welding function complies with demands.
4.3. Generally, welding current is adequate to welding electrode according with as following:
Specification
Current
4.4. Knob of arc-striking drive is use to adjust welding function, specially in low current arrange, that is
cooperated with knob of welding current adjustment, they may adjust current of arc striking and be out of
control of knob of welding current adjustment .So machine can grain powerful energy and push current can
achieve effect that may .
4.5. If the VRD equipment is installed in the machine. When the switch of back panel is put "ON" position,
the VRD indictor is lit, and when the switch is put "OFF" position, the VRD indicator is off, then the no-load
voltage is 67V.switch of VRD is put inside the machine, with the "on" condition. the no-load voltage changes
to be less than 15V, which is safe for people.
The wire feeder is built-in, easy to operate and is
designed to work with reels weighing up to 5 kg.
The voltage is adjusted in steps according to the
thickness of the metal. The change in wire feed
speed is smooth.
The machine is equipped with power voltage compensation equipment.
When the power voltage fluctuation is between±15% of rated voltage, it
still can work normally.
When the machine is used with long cables, in order to prevent
voltage from going down, bigger section cable is suggested. If the cable
is too long, it may affect the performance of the power system. So cables
of configured length are suggested.
3.1. Make sure the intake of the machine is not blocked or covered to
avoid malfunction of cooling system.
3.2. Ground the cables with section area no less than 6mm2 to the
housing, the way is connecting screw in the back of the power source to
ground device .
3.3. Correctly connect the arc torch or holder according to the sketch.
Make sure the cable, holder and fastening plug have been connected
Ø2.5
70-100A 110-140A
Ø3.2 Ø4.0
170-220A
13
Ø5.0
230-280A