CEG MTSTD Serie Manual De Instrucciones página 17

The type of connection and the variation in rotation
direction should be done according to the indica-
tions on the connection lay-out supplied with the
terminal board (see item "Standard supply parts")
and also mentioned in the catalogue.
Connection of Rotation direction seen from
L1, L2, L3 shaft output side
U1, V1, W1 Clockwise
W1, V1, U1 Anti-clockwise
The phase terminals are indicated with the letters
U V W (phases); the earth terminal is indicated with
the symbol specified by standard IEC417 #5019,
reproduced at the side
The electrical connection prescriptions must be ob-
served.
– Do not temper with the contact box or in any way
alter its tightness and penetration resistance
characteristics.
– Make the connections with an eyelet type termi-
nal, strictly using the supplied jumpers (see item
"Standard supply parts"). Observe the following
minimum air distances for phase-phase and
phase-carcass according to the specifications of
IEC60664-1.
– When closing the contacts box after every job,
make sure that it is clean and check the following:
no foreign bodies inside the box; no dust, humid-
ity or contamination in general; seal correctly po-
sitioned, screws well tightened. Power up the
motor only after the contacts box has been
closed.
– Protection against overloading must be effected
in relation to the specific use, load conditions and
to the legal regulations applicable to the motor-
appliance combination. Said protection must be
set according to the motor's rated current, taking
into account any start-up transients or overload-
COMMISSIONING
In his/her capacity of assembler of complex appli-
ances or machinery, the user has the responsibility
to ensure the safety of his/her construction accord-
ing to the provisions of the applicable EU directives,
to the instructions for the product and to national le-
.
ing with special characteristics. The protection
can be obtained by using a thermal relay.
– You are recommended to protect the windings
with a thermistor or bimetal device, when the mo-
tor is located in a poorly ventilated place, or in
connection to the legal regulations applicable to
the motor-appliance combination. The tripping
temperature set by CEG for the models equipped
with a thermal protection device, depends on the
insulation class (see catalogue and data-plate)
according to EN60204-1 and EN60034-1.
– The external protective devices must, in any
event, be supplied by the motor user according to
the analysis of the risk of the motor-appliance
combination. The protective devices must be
adapted to the overloading conditions as men-
tioned above, and described under item "Opera-
tion".
– The earth connection (PE) must be made before
the phase connections, by securing the earth
conductor with terminal to the blind hole marked
on the terminal board and using the supplied
screw (see item "Standard supplied parts"). The
nominal connection point is inside the contact
box. However, another PE connection point is
provided on the carcass.
– Use conductors of adequate diameter, according
to the diameter of the phase conductors, e.g. ac-
cording to EN60204-1.
– At the first start-up, with the motor mechanically
disconnected, check if the rotation direction is
correct. This is in addition to the check indicated
during the mechanical installation.
CEG motors electrically conform to EN60034-1.
Applications with power fed at variable voltage or
frequency, must be expressly agreed when order-
ing.
gal regulations. The safety prescriptions supplied
with this manual can be used and should be borne
in mind for that purpose, but strictly concern the mo-
tor in its expected, generic use.
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