User manual ZUP-230V
Nr dok. 0697.00.95-02.3
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5.2. Connecting mains
The mains power cable with a minimum cross-
section of 3×1.5 mm2, after passing through one of
the glands in the casing of the power supply, should be connected to single-track connectors, as
shown in the Fig.2.
Note.
The mains connection must be made as a permanent installation with the continuity of the neutral
line (N). The installation switch described below must be in the active line (L).
The power supply is not equipped with its own mains switch, therefore it is required to use a special
installation switch outside the power supply. The switch should also be used as an overload and short-
circuit protection device and allow to power the devices of high inrush current. We recommend using
the S301 C16A installation switch. This switch should be clearly marked as being used in the fire
system and cannot be used simultaneously in other circuits.
Warning.
Switching on the mains with a switch located outside the power supply can only be performed with
the fully assembled internal cabling of the power supply unit, including the connected and correctly
installed inverter. It is unacceptable to leave the 230Vac power plug disconnected from the inverter
output.
5.3. Connection of external AC output circuits
The external connections cables should be run through the selected holes in the cabinet's body
(after removing the jumpers) and fastened by twisting the appropriate glands. The cables to be
connected to the AC-1, AC-2, AC-3 and AC-4 outputs, after fixing them in the glands, should be led in
a large arc in the inverter plane before they are fixed by cable holders and connected to appropriate
terminals of the ZUP power supply . The external cable insulation should be removed directly behind
the cable holder. To make the connections of 230Vac power in the fire protection systems, 3-wire
cable of the HDGs type 1.5mm2 is recommended. For devices made in the 2nd class of insulation, it is
possible to use 2-wire cables, without using the connection with the PE bus bar.
Several loads can be connected to the power supply at the same time. The sum of their power
cannot, however, exceed the maximum power indicated for a given execution device. Attention should
be paid to the nature of the load provided by some loads. For example, induction motors can take
significant current when starting, which can lead to a blown fuse placed on a given output or prevent
proper start of the inverter. In this case, it is possible to use a soft starter system (so called soft-
starter), for example, the ZUP-MS type of the MERAWEX. However, a user is asked to consult the
manufacturer, due to different nature of loads, which may require setting individual device operation
parameters.
5.4. Connection of additional outputs
These connections concern the outputs of the ZSP121N-DR power supply shown in Fig.2. It should
be noted that all signal outputs and inputs are referenced to the negative output terminal of the power
supply. A detailed description of the outputs of this power supply is included in a separate User
Manual.
From the output
OUT1
of the ZSP121N-DR power supply, only current of the values described in
the table
Basic operating parameters of power supplies
can be taken (point 1.2 Technical data).
5.5. Connection of battery bank
The battery bank, placed with its terminals from the side of the casing door, should be connected
with two cables that are already led out of the power supply, paying particular attention to the polarity:
red cable to the positive pole of one battery, blue to the negative of the second one. Finally, connect
the both batteries with each other, by means of the cable (connector) provided by the manufacturer.
Incorrect connection can lead to destruction of the power supply.
The battery should be connected with the battery disconnector switched off and its fuse removed.
Although each of the component devices (the ZSP121N DR power supply, ZUP and inverter) has its