CEBORA S.p.A.
5.4
Protections description.
5.4.1
Coolant pressure.
This protection is achieved by means of a
pressure switch, inserted in the fluid delivery
circuit, which controls a microswitch.
Low pressure is indicated by the abbreviation
H2O flashing on the Control Panel.
5.4.2
Fuse O.
(T 1.6A/400V - Ø 6.3x31,8 mm).
This fuse is inserted to protect the pump and is
located on the rear panel of the Power Source.
5.4.3
Fuse X.
(T 1.6A/400V - Ø 6.3x31,8 mm).
This fuse is inserted to protect the pump and is
located on the rear panel of the Cooling Unit.
5.5
Cooling Unit management.
NOTE : for references to the command listed in
this section please consult the Control
Panel Instruction Manual.
On the Control Panel, press the button T5 to
access the selection page.
Press the key T7 (H2O).
Use the keys T10 and T11 to select the type of
operation:
OFF = off;
−
ON
= always on;
−
Auto = automatic operation.
−
In this page the T7 key (DEF) restore the factory
setup.
Press the key T13 to exit the submenu, storing
automatically the actual setup.
At Power Source start-up, the unit starts running
to place the liquid in the cooling circuit under
pressure.
If the start command (ARC-ON signal) does not
arrive within 15 seconds, the unit stops.
In automatic operation at each start command
(ARC-ON signal) the unit begins operating and
stops 3 minutes after the start signal disappears.
If the coolant pressure is too low, the Power
Source delivers no current and the message H2O
flashing is shown on Control Panel.
3.300.354
6
MAINTENANCE.
6.1
Periodic inspection, cleaning.
Periodically make sure that the Welding System
equipments and all connections are in proper
condition to ensure operator safety.
Periodically open the Power Source panels to
check the internal parts; remove dirt or dust from
the internal parts, using a jet of low-pressure dry
compressed air or a brush.
Check the condition of the internal power
connections and connectors on the electronic
boards; if you find "loose" connections, tighten
or replace the connectors.
To ensure proper air flow and thus adequate
cooling of the internal parts of the Power Source,
periodically open the grids on the Power Source.
Remove dirt or dust from the internal parts of the
tunnel,
using a jet of low-pressure dry
compressed air or a brush.
After making a repair, be careful to arrange the
wiring in such a way that the parts connected to
the power supply are safely insulated from the
parts connected to the welding circuit.
Do not allow wires to come into contact with
moving parts or those that heat up during
operation.
Mount the clamps as on the original machine to
prevent, if a conductor accidentally breaks or
becomes
disconnected,
occurring between power supply and the welding
circuits.
19
a
connection
from
15-04-2013
GB