Würth POWERCUT 70S Traduction Des Instructions De Service D'origine page 23

Remark of Illustration
Ground
Descending
Plasma Cutting
Power Source & AC 1 Phases
transformer -- Rectifier
DC
X：Duty Cycle
I1：Rated Input Current
I2：Rated Cutting Current
P1：Rated Input Power
U0：Rated Open Circuit Voltage
U1：Rated Input Voltage
U2：Rated Load Voltage
∼50Hz：AC, Rated Frequency 50Hz
...V：Unit of Voltage
...A：Unit of Current
...KVA：Unit of Power
...%：Unit of Duty Cycle
...A/...V：Cutting Current and Relevent Load
Voltage
...MPa：Unit of Pressure
....bar：Unit of Pressure
EN60974-1：Safety standard for the welding
equipment
IP21S：Grade for the case protection. IP is the code
of International Protection. 2 mean prevent-
ing user's finger from the dangerous parts;
preventing the solid material with the diam-
eter no less than 12.5mm into the box. 1
means preventing water dropping vertically
which is harmless. S means water proof
test is conducting while the movable part is
standstill.
H：H insulation grade
Installation (See following
pictures)
Cutter's Placement
• The dust, acid and erosible dirt in the air at the
job site can not exceed the amount required by
the norm.
• The welder must be installed in the place where it
can not be exposed to sun and rain. Also it must
be stored in less humid place with the tempera-
ture range at -10∼ +40°C.
• There should be 50cm space about for the
23
1 Phases Arc Welding
welding machine to have good ventilation.
• Apparatus to exclude wind and smoke should be
equipped if the inside aeration is not sound.
Appearance and Connection
Input power
(Ground)
Gas regulator
Gas pipe
Connection Sketch
1
2
3
4
Front panel
1. Digital display
2. 2T 4T Switch
3. Gas check/Cutting switch
4. Negative output
5. Overheating indicator
6. Gas shortage indicator
7. Transfer arc post
8. Cutting current adjustment knob
9. Positive output
10. Leakage protection switch
11. Power input cable
12. Compressed air input connector
Power supply
Torch trigger
Earth
Cable
5
10
6
7
8
9
Back panel
Torch
Work
piece
11
12