LEGRAND Archimod, Руководство по эксплуатации и техническому обслуживанию

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6. Installation
6.2.6 Protections
To ensure correct operation of the UPS and its accessories the electrical system must be adequately protected.
It is mandatory to protect the UPS upstream with thermal circuit breakers on the mains input line and on the bypass input
line (if different from the first), sized as explained in Table 5. This is to provide suitable protection from overloads or shorts
in output.
6.2.7 Configuration: three-phase input/three-phase output
The default configuration for the Archimod® UPS units distributed by LEGRAND® is a THREE-PHASE INPUT and a THREE-
PHASE OUTPUT.
Before starting to connect, make sure that the mains input, maintenance bypass and output disconnector switches on the
front panel of the UPS are open in the OFF position.
ATTENTION
When connecting the input, bypass (if used) and output cables take care not to reverse the UPS cables that are
already on the terminals of the relative disconnector switch.
Mains input connection:
Before connecting the mains input, check that the available mains power is higher or the same as the UPS’s rated input
power. Also check that the cables to connect to the UPS are disconnected upstream and there is no voltage.
- Check that the earth cable leading from the low voltage distribution panel is connected to the terminal on the base of
the equipment.
- Connect the neutral mains input cable to its terminal on the mains input disconnector using a suitable cable terminal.
- Connect cables L1, L2, L3 of the mains input line to their terminals L1n, L2n and L3n on the mains input disconnector
using suitable cable terminals and taking care to observe correct cyclicity of the phases L1, L2 and L3.
ATTENTION
The equipment’s neutral passes through.
The neutral conductor cable of the mains input must ALWAYS be connected! If the neutral is not connected the UPS
could be seriously damaged when powered off the mains.
In the three-phase output configuration the UPS could be seriously damaged if there is one or more EC15 connectors
on the UPS’ backplane boards.
If this is the case, remove all the EC15 connectors.
Separate bypass mains connection (if any):
The connection of a separate bypass line is only possible if the neutral conductor of the bypass line and that of the mains
input are in common (the same potential). The neutral of the UPS’s mains input, bypass input and through output are
connected together internally.
Note: the factory supplies the UPS with the bypass input in common with the mains input.
Before connecting the bypass line, check that the available mains power is higher or the same as the UPS’s rated input
power.
Also check that the cables to connect to the UPS are disconnected upstream and there is no voltage.
- If there is a bypass line earth cable connect it to the terminal on the base of the equipment.
- Connect the neutral bypass line cable to its terminal on the bypass input disconnector using a suitable cable terminal.
- Remove the three cables jumpering terminals L1in, L2in, L3in and L1byp, L2byp, L3byp on the relative disconnectors.
- Connect cables L1,L2 and L3 of the bypass input line to their terminals L1in, L2in, L3in and L1byp, L2byp, L3byp on the
bypass input disconnector using suitable cable terminals and taking care to observe correct cyclicity of the phases L1,
L2 and L3.
WARNING
The neutral conductor cable of the separate bypass mains must ALWAYS be connected! If the neutral is not
connected the UPS could be seriously damaged when powered off the mains.