Sector Power Supply
The MX 43 can be powered from a 110-240 V AC source at 50/60 Hz, 1.5 A
max.
Check the nature of the current and the network voltage prior to any
connection. The electrical connections must be carried out with the equipment
disconnected.
The MX 43 must be protected upstream by a differential bipolar circuit breaker
with a type D response curve, size 4A. This circuit breaker must be included in
the electrical installation of the building, in the immediate proximity of the MX
43, and be easily accessible to operators. It shall be marked as the cut-off
device of the MX 43.
The sector power shall be connected to the terminal block as indicated in
Figure 28. The ground conductor shall be connected to the ground terminal
(B).
Figure 28: Connection of sector power in wall-mounted and rack-mounted versions.
External 24V DC Power Supply
The MX 43 can be powered from a 22 to 28 V AC source at 50/3.2 A, 1.5 A
max. In this case, connect the 24VDC source to the corresponding terminal
jack (Figure 29, A) respecting polarities. This jack is protected by Fuse F1.
Figure 29: Connection of 24VDC external power supply (A).
The main power supply charges the internal pack. The external 110-240 VAC,
24 VDC and battery pack sources can be used simultaneously, as there is
internal protection installed.
Integrated Backup Power Supply
The MX 43 can be equipped with a 24-VDC NiMh battery pack that maintains
power to the controller in the absence of the sector current or external 24VDC.
The batteries are charged by the mains supply (110-240 VAC).
The battery pack requires continuous charging for 7 days before reaching its
maximum capacity. Its autonomy depends on the MX 43 configuration.
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