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5.4.1 Safety Earth
The safety earth cable must be connected to the earth BUS BAR and bonded to each cabinets in the system
and also the earthing and neutral bonding arrangements must be in accordance with the local laws.
ATTENTION!!!
Failure to follow adequate earthing procedures can result in electric shock hazard to
personnel, or the risk of fire.
5.4.2 Cable Connections
ATTENTION!!!
All the cable connections of the ups must be done by the authorized service
personnel. Once the equipment has been finally positioned and secured, connect the power cables as
described in the following procedure:
Split (External) By-Pass
Supply Connections
a. The three white cables shown in
Figure 5-2 are removed.
b. The three phase + neutral cables
coming from the split by-pass supply
are connected to terminals U3-V3-
W3 and N3.
c. The three phase + neutral AC Input
cables are connected to terminals
U1-V1-W1 and N1, to supply the
necessary operational input power
of the UPS.
d. Note that in this connection the
neutrals of the split by-pass supply
and the line are connected together.
e. The split by-pass supply’s voltage
and frequency must be compatible
with the UPS output voltage and
frequency.
RECTIFIER
INPUT FUSES
BATTERY
FUSES
F1
F2
F3
+
BATT (+)
BATT (-)
Figure 5-2-a 10-15-20 kVA Cable Connections
WHITE
CABLES
Figure 5-2-b 30 kVA Cable Connections
RECTIFIER
INPUT FUSES
BATTERY
FUSE
F1
F2
F3
+
INPUT
SUPPLY
WHITE
CABLES
BATT (+) BATT (-)
S1
Summary of Contents for MagicLight ML-310
Page 2: ......
Page 27: ...24 Figure 3 2 Parallel UPS connection...
Page 36: ...33 optional Figure 5 3 b UPS Battery Group Connection With Battery Fuse...
Page 43: ...AGKK9241 05 2013...
