Maggi 16430201, Original Use And Maintenance Manual

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16.2 PNEUMATIC CONNECTION
1) Connect the machine to the compressed air system and make sure that the connection tube is compatible
with the one provided alongside the machine itself and located on the lubrication-filter-regulator unit at the back
of the machine, in the lower right-hand side.
Working pressure should range between 6 and 7 bar.
2) The lubrication-filter-regulator unit is made upby:
A) A filter, whose function is to purify air from dust and humidity that might damage the valves or gaskets in
pneumatic cylinders.
B) A regulator that adjusts compressed air working pressure by keeping this value within the above-
mentioned limits.
C) A lubricator that puts a determined amount of oil into the system to lubricate cylinders, valves, gaskets and
moving parts.
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16.1 CONNECTION TO ELECTRICAL POWER SUPPLY
To gain access to the machine electric system, open the main board door by loosening the screws on the
front of it. We recommend not to connect the machine to the electrical power supply until it is not correctly
placed in the right place. Before connecting the machine to the electrical power supply, it is necessary to ver-
ify that the electrical system corresponds to the following necessary power and safety requirements:

Grounded equipotential electrical system

Presence of fuses or protection switches against short circuits on every conducing cable R-S-T, except
the grounded one

The electrical power system must be in conformity with CEI 64.8 (CENELEC HD 384, IEC364-4-41)
rules

Voltage and frequency for the motors are specified on the plates placed on them

Connect the power supply cable to R-S-T terminals

Automatic protection devices installed upstream respect to the machine; they have to be coordinated to
guarantee the automatic break according to above mentioned rules.
The electrical connection is done by three-phase plug (or single-phase plug, depending on the panel).
The cable for ground connection is yellow-green.
The tolerance of admissible voltage is +/-10%
When voltage is applied to the electrical power supply, check that the spindles rotation direction is the one
written in the plate placed on the head (Black=Right; Red=Left).
If the rotation direction does not match the one impressed in the plate, please invert the connection cables to
three phase power supply. For any information please see the electrical diagrams included in this manual.
Attention: we strongly recommend that the
connection to the electrical power supply is
done by technical qualified personnel only.