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34007724EN/AA - Page 21
2. Installation
2.7 Connections of input/output power cables
◗ This type of connection must be carried out by qualified electrical personnel.
◗ Before carrying out any connection, check that the battery circuit breaker 12 and that the upstream protection devices
(Normal and Bypass AC sources) are open ("0").
◗ Comet EX RT UPS always comes from factory with Normal and Bypass AC inputs already connected together, using a
bridge.
◗ Use included insulated ferrules with stranded wires.
To access the connection terminal blocks,
see section 1.2 "Rear panel":
1 - Remove the terminal block cover
(5 screws),
2 - Insert the Normal AC cable through the
cable gland,
3 - Connect the 5 wires to the Normal AC
terminal block,
Always connect the earthing
wire first.
4 - Insert the output cable to the load
through the output cable gland,
5 - Connect the 3 wires to the output
terminal block,
6 - Refit the terminal block cover and tighten
the cable glands,
7 - Secure the junction Input/Output box to
the rear of the power module by means of
the 3 screws.
UPS with common Normal and Bypass AC sources
1
4
2
5
3
6
1
6
1
1
6
6
7
R
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c
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1
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a
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N
2
L
2
N
1
L
3
O
u
t
p
u
t
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R
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c
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2
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1
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1
B
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N
2
L
2
N
1
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3
O
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R
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c
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1
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I
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p
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N
2
L
2
N
1
L
3
O
u
t
p
u
t
N
L
Card Settings
RS232 Download
66074
UPS
data
Reset
100 10
1 2
ON
ETHERNET
IP=
MAC=00E0D8FF855E
N
O
R
M
A
L
φ
1
6
7
7