Salicru EMi3 M 5-2 Manuel D'utilisateur page 67

In three phase stabilizers consisting of three single phase cabi-
•
nets, in case it was requested to have one single point to con-
nect the neutral, joint the neutral rod of the three equipments
by means of the two extensions copper rods (PT), otherwise
connect the suitable cross cable section to the three terminals
(X9) corresponding to the neutral of each equipment.
When it is not a conditioning (only one conductor), it is able
to connect a suitable cross cable section to the output neu-
tral terminal (X9) of each equipment.
In case of discrepancies between the labelling and the instruc-
•
tions of this manual, the labelling will always prevail.
With respect to the protection that must be placed at the
•
output of the stabilizer, we recommend that the output power
should be distributed in four lines, at least. Each one of them
should have a circuit breaker protection switch of a quarter
of the nominal power. This type of output power distribution
will allow, in the event of a breakdown in any of the machines
connected to the equipment that causes a short-circuit, will
only affect to the line that is faulty.
The rest of the connected loads will have their continuity as-
sured due to the tripping of the protection of the line affected
by the short-circuit only.
5.3.3. Non-critical loads connection.
Equipments with «Non-critical» loads contactor there will be
•
two output terminal strips. Connect the loads to the corre-
sponding group according to their topology, and attending to
the labelling.
5.3.4. Connection of the protective earth
As this is an equipment with class I protection against
•
electrical shocks, it is essential to install the protection
earth conductor (connect earth
before supplying voltage to the input terminals.
Make sure that all the loads connected to the stabilizer, the
•
protective earth is only connected to this point. The fact of
not respecting the protective earth connection of the load
or loads to this single point, will create backfeed loops to
earth that will affect to the quality of the power supplied.
Regardless of the equipment has one or two protection earth
•
terminals, are always joined to the ground of the stabilizer.
In three phase stabilizers consisting of single phase equip-
•
ments, it is needed and essential to make one of these two
options as regards to the earth :
Joint the earth terminals (screws) (X5) of the three
ˆ
equipments by means of the cable and connect the pro-
tective earth cable coming from the installation to any
of the terminals (X5).
Or come with one separate earth cable to each terminal
ˆ
(screw) (X5) of each equipment, but they have to come
from the same point.
USER'S MANUAL
.
). Connect this conductor,
5.3.5. Connection of the communication module.
Any connection is defined and related in the user's manual
•
EN030*00 of the communication module. Make the corre-
sponding connections.
5.3.6. Connection of the budged dry contacts option to
terminals.
Section 4.7.7 states the signal or alarms layout supplied through
•
the terminal strip.
Use the suitable cross cable section for the needed voltage and
current, attending the maximum ones that the contacts can
handle.
5.3.7. SICRES Ethernet communication card.
To connect the SICRES card, pay attention to the instructions of
the user's manual EK764*0, supplied together with the docu-
mentation Pendrive of the own SICRES card.
5.3.8. Connection between an external manual Bypass
Panel, stabilizer and loads.
As this is an equipment with class I protection against
•
electrical shocks, it is essential to install the protection
earth conductor (connect earth
before supplying voltage to the input terminals of the manual
Bypass Panel.
Manual Bypass panel
EMi3 Stabilizer
Line
Fig. 15. Connection of the stabilizer with a manual Bypass
Panel with single cam switch.
Manual Bypass panel
Line
EMi3 Stabilizer
Fig. 16. Connection of the stabilizer with a manual Bypass
Panel with single cam switch and protections.
). Connect this conductor,
To loads
To loads
67
EMi3 SERVOMOTOR VOLTAGE STABILISER