19
(B1)
The unit is supplied without batteries and without accessories (screws and electric cables). The batteries are expected to be
installed in an external cabinet or battery rack. Upon request, the cabinet or rack and the necessary accessories can be supplied.
For units ordered without batteries, their purchase, installation and connection will always be borne by the customer and
under their
responsibility
. However, the intervention of our
T.S.S
.
to carry out the necessary installation and connection work may be necessary.
The data related to the batteries in terms of number, capacity and voltage are indicated on the battery label next to the unit's name plate.
Adhere strictly
to these data and the polarity of the battery connection.
On units with a separate static bypass line, a galvanic insulation isolation transformer must be inserted in either of the two UPS
power lines (rectifier or static bypass input), to prevent the direct connection of the neutral of the two lines via the unit's in-
ternal connections. This only applies when the two power lines come from two different networks, such as:
- Two different electricity companies.
- An electricity company and a generator set...
4.3. UPS CHARACTERISTICS LABEL
SLC CUBE4
4.4. UPS DESCRIPTION
4.4.1. General description and block diagram
The
SLC CUBE4
unit is a double conversion online Uninterrupt-
ible Power Supply (UPS). The classification in terms of its per-
formance is in accordance with the UPS international standard
(IEC 62040-3), corresponding to “VFI-SS-11”
(1)
.
The UPS achieves maximum performance in terms of efficiency,
reliability, availability and adaptability to the needs of every in-
stallation, thanks to its advanced design:
•
Control based on 4 floating-point DSP (Digital Signal Pro-
cessor) cores.
•
Rectifier and inverter with 3 switching levels.
•
State-of-the-art electronic switching devices.
•
Compact mechanical design optimised for maintenance.
•
Advanced control techniques for achieving the best elec-
trical performance.
•
"Unlimited" parallel system, non-critical communications.
The main constituent parts of this unit are:
•
Input and output EMI filters.
•
Active rectifier with power factor correction (PFC) and low
harmonic absorption (THD-i) for the input current. It also
carries out the function of battery booster.
•
3-level inverter, and low harmonic voltage distortion.
•
Batteries (they may be external to the unit), and battery
charger.
•
Static bypass.
•
Manual or maintenance bypass.
•
Control panel.
•
Interface for external signals and communications.
(1)
Note:
“VFI” (“Voltage Frequency Independent”), indicates that the output voltage and frequency
of the UPS are independent of the input voltage and frequency.
“SS” (sinusoidal-sinusoidal): sinusoidal output voltage both in normal and battery mode.
(See chapter 4.5. of this manual)
“11” (dynamic response classification “1”, see. IEC 62040-3): both in operating mode
changes, as well as in linear load steps, the dynamic response is the best possible
(response speed, voltage drop) within the classification specified by the standard in
question.
SLC CUBE4
- UNINTERRUPTIBLE POWER SUPPLY SYSTEM
-
USER MANUAL
