Urrea SOL83020 Manual De Usuario página 12

GROUNDING
WARNING: The welding machine should
be well connected with earth before opera-
tion and no disconnection work is allowable
before the welding job is finished. Or it may
cause an electric shock and harmful injuries.
Parallel connection is a must when the welding
machine is using the same earth equipment to-
gether with the other machines. Never can the
connection in series be used here. The sectional
dimension of the earth conducting wire cannot
be less than that of power cord.
CONNECTION BETWEEN WELDER AND POWER
SOURCE
When the welder is connected with the earth
(ground), please always make sure that the
voltage must be in conformity with the volt-
age given on the welder' s indication plate and
it must be joined with the fastener. The con-
nection screws must be tightened and well se-
cured. The input wire must be fastened on the
conductor clamp attached to the welder. For
details please see the next illustration (fig. 1):
1. Power input. Conection Box.
Fig. 1
ATTENTION: The minimum copper's sec-
tional area of the power cord must be in line
with the requirement prescribed in next table:
AIR SWITCH
FUSE (RATED CURRENT)
POWER WIRE
NOTICE: The melting current of the fuse is two
times of its rated working current.
OUTPUT CONNECTION
DC ARC WELDING
Connect the output cables according to the
above sketch and screw down. The work clamp
is connected to the work piece. The electrode
holder of the welding cable is for welding after
installing the electrode.
12
1
≥100 A
80 A
≥16 mm²
NOTICE: If the connectors haven't been
tweaked tightly, the inner connection board
and the welding cable will be burn out.
Connector for
workpiece (DC)
Connector for elec-
trode holder (DC)
AC ARC WELDING
Connect the output cables according to the
above sketch and screw down. The work clamp
is connected to the work piece. And the elec-
trode holder of the welding cable is for weld-
ing after installing the electrode.
NOTICE: If the connectors haven't been
tweaked tightly, the inner connection board
and the welding cable will be burn out.
WORKING SPECIFICATIONS
Environment to which the product is subject
The surrounding temperature range:
When welding: -10 to +40°C. During transport
or in storage: -25 to +55° C
Relative humidity: when at 40°C: <50%. /
when at 20°C: <90%.
The dust, acid and erodible materials in the
air can not exceed the amount required by
the norm (apart from the emissions from the
welder). No violent vibration at the job site.
Keep from raining and high temperature when
it is used outdoor.
REQUIREMENT FOR MAIN SUPPLY
• The voltage oscillogram should display actual
sine wave.
• The oscillation of the supplied voltage should
not exceed ±10% of the rated value.
• The unbalanced rate of voltage of three
phases power supply shall be ≤5%.
Connector for
workpiece (AC)
Conector for elec-
trode holder (AC)