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MP500/4N-8-16 Installation
5.12 CONNECTIONS
This paragraph contains instructions on how to carry out all the electrical connections and necessary signals for starting up the system.
IMPORTANT!
Before running the cables, check that the sections are correct and that conform with the maximum distances. If
IMPORTANT!
The end of the stranded conduction must not be consolidated with a soft-solder welding in the points where the
conductor is subject to contact pressure.
Therefore it is not allowed to solder the terminals of the cables connected to the terminals of the devices.
5.12.1 Power supply line
IMPORTANT!
Before making any connections to the mains power supply, disconnect the mains power supply.
In fulfilment of the electrical safety standards for power supplies, a suitable isolating device must be installed, like a double-pole
thermo-magnetic circuit breaker to protect the mains power supply. (
Figure 55 - Diagram of the connections to the mains power
). The mains disconnector must have a separation between the contacts of at least 3 mm.
It is advisable to position the circuit breaker upstream from the differential switch (the so-called "automatic cut-out switch), in order to
be able to disconnect other sections of the electrical system, thereby maintaining the functionality of the MP500 systems.
For the power supply, use a 2 x 1.5 mm
2
cable.
The MP500/4N and MP500/8 control panels have double isolation and do not need earths (PE). However, the earth connection is
required only for the connection to the telephone line.
The MP500/16 control panel and the AS500/RPT power supply require, instead, an each connection (PE) made with cable of a sect ion
no less than that of the cable used for the power supply. For this connection, there is a Faston connector provided with the control
panel.
1. Connect the mains power supply cables to the 2 terminals of the control panel power supply.
2.
Only for MP500/16 and AS500/RPT
: To connect the earth of the equipment, crimp the Faston terminal (
A)
(provided with the system)
onto the earth cable that will be insered into one of the Faston terminals on the wall of the box (
C
) and connect the small earth cable
to the cover Faston (
B
).
3. Secure the wires by fastening them in anchoring point (
F
) with the strip provided.
IMPORTANT!
After having connected the wires, remember to insert the plastic protection on the terminals.
Figure 55 - Diagram of the connections to the mains power supply
IMPORTANT!
The system must be powered by the mains only when all the devices are installed correctly, making it possible
to proceed with their acquisition. For security purposes, close even the control panel casing before powering it up.
MP500/4N - MP500/8 control panel
(
F
) Point where power cables are fastened with the band
MP500/16 - AS500/RPT control panel
(
F
) Point where power cables are fastened with the band
B
C
F
F
A
MP500/4N -
MAINS
POWER SUPPLY
