WARPP COMBO-401 i, Operator'S Manual

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COMBO-401 i/501 i
OPERATOR’S MANUAL
12
time, welding voltage appears, then coming into the arc starting state and begins to feed wire slowly. After
successful arc starting, the wire feeding speed will become normal, and then welding current appears. But
you can`t release the switch now.Simultaneously, adjust the “welding voltage adjustment” knob and the
“welding current adjustment”knob for the best performance of welding;
c) When welding is finishing, release the welding torch switch, wire feeding stops immediately, and
become back burn state, The welding voltage will decrease and becomes back burn voltage. When welding
current becomes zero, arc quenches, gas sending stops, and the welding finished.
5 . Directions of prolonged output cable
The connection cable on this series of machine is allowed to be lengthened between power source and wire
feeder, but the below regulations have to be followed.
a) The resistance of cable will increase with length, and also increase of the cable’s voltage drop.
Moreover,the cross section area of the cable effect the voltage drop;
b) When lengthening the cable, get the cable with higher cross section area ;
c) When lengthening cable, place the cable straight don’t make in coil form.
6 . Technique conditions
6.1 Technical parameters
TYPE
PARAMETER
COMBO-401 i COMBO-501 i
Shield rank IP21S
Rated input voltage Three-phase power 3~415VAC 50Hz
Rated input capacity 16.5KVA 26.3KVA
Gas-shield
welding
Output
current
60
～
400A 60
～
500A
Output
voltage
17
～
39V 17
～
39V
manual welding
Output
current
60
～
400A 60
～
500A
Output
voltage
22.4
～
34V 22.4
～
40V
Crater current 80
～
400A 80
～
500A
Crater voltage 17
～
40V 17
～
40V
Duty cycle 100% 100%
Rated current 400A 500A
Suited welding wire’s
diameter
Solid 0.8mm
1.0mm 1.2mm
Solid 1.0mm
1.2mm 1.6mm
Flux-cored
0.8mm 1.0mm
1.2mm
Flux-cored
1.0mm 1.2mm
1.6mm
Outline
(length×width×height)
640×290×530
（
mm
）
640×320×570
（
mm
）
Weight 39Kg 45Kg
* Its rated duty cycle is 60
％
, that means in a 10 minutes working period
，
the machine will run for 6 minutes
under rated welding current and rest for 4 minutes. If the Rated duty cycle is 100%,that means in a 10
minutes working period
，
the machine will run for 10 minutes under rated welding current without rest. If the
machine works over the rated duty cycle, the inner temperature will rise and exceed the fixed threshold. In