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Operating instructions
5.3
Electrical connection
T
HE SUPPLY
GEROUS
WORKMANLIKE BY QUALIFIED STAFF
-
The electrical capacity of the plant must exactly match the supply's voltage and frequency required by the machine;
-
the current capacity of the plant must be suitable for the machine's input;
-
the plant must end with a standard socket (3-pole socket for monophasic 1N input and 5-pole socket for triphasic 3N –
3F input) with electrical and mechanical suitable characteristics. The electrical socket's poles must be marked with
appropriate letters (phase R or phases R-S-T + neutral N + earth); the earth pole must be properly recognizable;
-
the electrical socket must prevent, through appropriate mechanical measures, the plug's wrong connection;
-
the electrical socket must have, above or annexed, a knife switch, conformed to the in force safety laws, with an
associated safety breaker positioned near the machine, in a place easily reachable by the operator. It must also be
protected by fuses, above or annexed, with characteristics suited at the current absorbed by the machine.
A
WRONG CONNECTION ON THE EARTH TERMINAL MAY CAUSE
Kind
of supply
EARTH
Phase R (3N – 3F)
Phase S (3N – 3F)
Phase T (3N – 3F)
NEUTRAL
Phase (1N)
Before operating machine the initial functional test is required (ref. Par. 5.4).
'
S VOLTAGE REQUIRED BY THE MACHINE IS HIGH
. T
HE WORKS ON THE SUPPLY
The manufacturer must not be considered responsible for eventual damages
caused by an inadequate electric plant or earthing.
All the machine's electrical features required for the system's proportioning are re-
ported on the Technical Data Plate and on the Technical Handbook.
A plug (3-pole plug for monophasic 1N input and 5-pole plug for triphasic 3N – 3F
input) must be connected to the end of the input cable. This must be suited to the power
supply socket.
The machine's power supply cable is composed by coloured wires, and eventually
marked with appropriate bands, which must be connected to the relevant plug's termi-
nals, as shown in the following table.
Wire
colour
GREEN/YELLOW
BLACK
BROWN
BLACK
BRIGHT or SKY BLUE
BROWN
'
S ELECTRICAL CIRCUITS MUST BE MADE
.
T
HE ELECTRICAL SAFETY OF THIS MACHINE IS REACHED
ONLY WHEN THE SAME IS CORRECTLY CONNECTED
QUALIFIED AND CERTIFIED PERSONNEL
,
EARTHING SYSTEM
MADE AS PROVIDED FOR IN FORCE
SAFETY REGULATIONS
F
OR THE PREPARATION OF THE ELECTRICAL PLANT WHICH
SUPPLIES THE MACHINE
THE PRESCRIPTIVE STANDARDS IN FORCE
F
AULTY WIRING INSIDE THE PLUG MAY BE
DAMAGE
AND CAUSE
,
CONNECTION
ONLY ADDRESS YOURSELVES TO QUALIFIED
AND AUTHORIZED TECHNICIANS
Wire marking band
(only 3N – 3F)
None
—
,
,
SO
IT IS PARTICULARLY DAN
,
TO AN EFFICIENT
.
,
IT IS COMPULSORY TO FOLLOW
.
IN PARTICULAR
SERIOUS DANGER.
DANGEROUS
TO THE MACHINE
.
Code marked near
plug's terminal
PE or
R or L1
S or L2
T or L3
N
L
9
-
,
BY
:
.
FOR THE
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