INFOSEC UPS SYSTEM - 4, rue de la Rigotière - 44700 Orvault - FRANCE - www.infosec-ups.com
Hot Line – Tel + 33 (0)2 40 76 15 82 - Fax + 33 (0)2 40 94 29 51 - [email protected] – 03 11 AA AA 201 18
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Three phase static bypass line:
Connect the power supply cables N-R-S-T to the static bypass line terminals
(X17), (X14), (X15) and (X16),
adhering to the order of neutral
and phases indicated on the label of the device and in this manual. If the
order of the phases is not adhered to, the device will not operate.
When there are discrepancies between the labelling and the instructions of this manual, the label will always
prevail.
When there are discrepancies between the labelling and the instructions of this manual, the label will always
prevail.
In equipment with a separate bypass line, an isolation transformer must be placed at either or both of the
UPS mains power supply inputs (rectifier input or static bypass), in order to avoid the direct connection of the
neutral terminal with both mains through the internal wiring of the equipment.
This is only applicable if the power supply comes from two different electrical mains, for example:
- Two different electricity companies.
-
- An electricity company and a generator set, etc.
4.3.3
Output, terminals (X6 to X9).
As this is a device with class I protection against electric shocks, it is essential to install a protective
earth conductor (earth connection ( )). Connect the conductor to the terminal (X5), before connecting the
power supply to the UPS input.
Connect the output cables to the respective terminals according to configuration of the available
equipment.
Three phase output:
Connect the load cables N-U-V-W to the output terminals (X9), (X6), (X7) and (X8), adhering to the order of
neutral and phases indicated on the label of the device and in this manual. If the order of the phases is not
adhered to, the device will not operate.
When there are discrepancies between the labelling and the instructions of this manual, the label will always
prevail.
With respect to the compulsory protection on the UPS output, we recommend that the output power should
be distributed in at least four lines. Each has a magnetic thermal protection switch with a value equivalent
to a quarter of the nominal power. This type of power distribution means that only the faulty line will be
affected in the event of a breakdown in any of the machines connected to the device resulting in a short
circuit. The rest of the connected loads will have their continuity ensured due to the triggering of the
protection, only the line affected by the short circuit will remain.
4.3.4
UPS connection to each in-cabinet battery pack, terminals (X11, X12, X23) & (X47, X48,
X49).
As this is a device with class I protection against electric shocks, it is essential to install a protective
earth conductor (earth connection ( )). Connect the conductor to the terminal (X5), before connecting the
power supply to the UPS input.
IMPORTANT FOR YOUR SAFETY: Do not turn the battery fuse holder switch (Q3) or (Q8) located in the
battery cabinet to “On” (Close), until the equipment is switched on completely, it may cause irreversible
damage to the equipment or accidents because the fitter is exposed to ELECTRICAL DISCHARGE DANGERS
when connecting the UPS with the battery cabinet.
The UPS with battery pack will be connected to the supplied cable trunk line, by connecting one side to
terminals (X11), (X23) and (X12) of the UPS and the other to terminals (X47), (X49) and (X48) of the
battery pack, while adhering to the stated polarity on the labelling of each part and in this manual, and the
colour of the cables (red for positive, black for negative, blue for middle tap (N) and green-yellow for earth
bonding), see figure 15.
Summary of Contents for M4T
Page 1: ...User Manual 10 80 kVA ...
