Terminal Board Wiring Diagrams; Fixing The Power Supply Cable To The Vibrator Terminal Board; Variable Frequency Supply; Section 4: Use Of The Vibrator - ITALVIBRAS GIORGIO SILINGARDI CDX gr.110 Guia Tecnica

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All CDX electric vibrators are equipped with a 130°C thermal
protector with a normally closed (NC) switching contact
(standard IEC/EN 60730); the thermal protector circuit is sized for
a maximum voltage rating of 600 Vac and a maximum apparent
power of 720 VA.
Use a manual momentary start switch.
The thermal protector has to be connected following diagram
in fig.25 page 87.
Alternatively for the frame size 110, only on specific request,
the CDX electric vibrators can be equipped with a 130°C PTC
thermistor, following standards DIN 44081-DIN 44082.
The thermistor eventually requested has to be connected
following diagram in fig.26 page 88.
The terminals of the thermal protector (or thermistor) are also
housed in the terminal box and are marked P1 and P2.

3.3 TERMINAL BOARD WIRING DIAGRAMS

ATTENTION: A tropicalised screw, indicated with the earth sym-
bol, is situated in the terminal box and on the external surface
(fig.7A page 4). The yellow-green (only green in the U.S.A.)
conductor of the power supply cable must be connected to this
screw which acts as a earth connector for the vibrator.
connection of the vibrator.
The sheet of wiring diagrams is found inside the terminal board
compartment.
3.4 FIXING OF THE POWER SUPPLY CABLE
TO THE VIBRATOR TERMINAL BOARD
The CDX electric vibrators are supplied without cable gland.
The user has to mount a cable gland in compliance with the Laws
and Standards, for the specific zone of use e per il paese di instal-
lazione ed uso.
Always use eyelet terminal for connections (Fig. 8, page 4).
CDX frame size 110 230/460V 60Hz electric vibrators have no terminal
block; once the relative connections have been made (Fig. 10A page
4), refit the cable clamp making sure that all wires and connectors
are correctly in place, then mount the cover checking to make sure
that the O-Ring is not damaged.
Prevent progressive disintegration that could cause interruption
or short circuits (A Fig.9 page 4, Fig.10A page 4).
Remember to place the relevant washers before the nuts (B Fig.
9, pag.4). This prevents loosening with consequent uncertain
connection to the network and possible damage.
Do not overlay the individual cable wires (Fig.10 - 10A page
4).
Carry out the connection according to the diagrams shown and tighten
the cable-holder fully home (A Fig. 11, page 4).
Position the foam rubber block ensuring that all wires are held and
assemble the cover paying attention not to damage the seals (B
Fig. 11, page 4).
Always check that the network voltage and frequency corre-
spond to that indicated on the vibrator identification plate before
supplying power (Fig. 13, page 5).
All vibrators must be connected to an adequate external over-
loading protection, according to the regulations in force.
When vibrators are installed in pairs it is important that each one
has its own external overloading protection and that these protections
are interlocked together. This is because if a vibrator accidentally
shuts down, the power supply is interrupted to both vibrators at the
same time, so as not to damage the equipment to which they are
applied (Fig. 12, page 5).
See fig. 25, page 87 as example of power and control circuits in the
case of vibrators with thermostat.
See fig. 26, page 88 as example of power and control circuits in the
case of vibrators with thermistor.
Important!: For the choice of start-up/shutdown and overloa-
ding protection electrical appliances refer to the technical data,
electrical features, nominal current and start-up current. Also
always choose delayed magnetic-circuit breakers, to prevent
release during start-up time, which may be longer in low envi-
ronmental temperatures.

3.5 VARIABLE FREQUENCY SUPPLY

All of the vibrators can be powered with a frequency drive (inverter)
from 20Hz up to the nominal frequency, with constant torque fun-
ctioning (rather with linear course of the Volt-Hertz curve) using a
PWM (Pulse Width Modulation) frequency drive.
SECTION 4 –
Use of the vibrator

4.0 PRELIMINARY CHECKS

ATTENTION: Controls must be carried out by specialised staff.
During disassembly and re-assembly of protective parts (ter-
minal box cover and weight cover), remove the power supply
from the vibrator.
Check current draw.
- Remove the cover from the terminal board compartment.
- Power the vibrator.
- Use an ammeter to verify (Fig. 14, page 5), on each phase, that
the input current does not exceed the value indicated on the iden-
tification plate.
If the current draw exceeds that stated on the plate:
- Check the flexible system and the vibrating machine framework
are in compliance with the regulations for correct application.
- Reduce force (centrifugal force) by adjusting the weights. Reduce
them until the value of absorbed current corresponds to that stated
on the identification plate.
ATTENTION: Avoid touching or allowing anyone to touch live
parts such as the terminal board.
Remember to allow the vibrators to function for brief periods of
time during set-up. This prevents damage to the vibrator and
structure in the case of anomalies.
Once the indicated controls have been carried out close the
cover definitively.
Check direction of rotation:
In applications where direction of rotation must be ascertained (B
Fig. 15, page 5):
- Remove a weight cover (A Fig. 15, page 5);
- Wear protective glasses;
- Power the vibrator for a brief period of time;
ATTENTION: in this phase ensure that no-one can touch or be
struck by the rotating masses.
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