Ups Features; Frequency Conversion; Increasing The Runtime; Automatic Load Start-Up - ABB PowerValue 11/31 T Operating Manual

UPS features

Frequency conversion

Operating as a frequency converter,
PowerValue 11/31 T not only con-
verts the power supply frequency (50
Hz to/from 60Hz), but it also protects
the load from power disturbances
and guarantees additional battery
power in case of mains failure.
The operation and installation is sim-
ple and implies in correctly wiring the
UPS and in selecting the frequency
conversion mode in the LCD display.

Input frequency range: 40 - 70Hz

Output frequency: 50 or 60 Hz

Output de-rating:
1-phase input: 60%
3-phase input: no de-rating

Increasing the runtime

Battery cabinets
are available to
increase the
system runtime.
Each cabinet
can host up to
96 batteries 9Ah
and two config-
urations are
possible:
2x24x9 Ah and
4x24x9Ah. Bat-
tery cabinets are dispatched empty,
with links and trays. Batteries for
both configurations are available
separately (VLRA batteries of 9Ah).
To connect several battery cabinets
to a group of UPSs in parallel, the
battery cabinets should be firstly
PowerValue 11/31 T Technical Specifications
connected to each
UPS. Only after this
procedure, the UPSs
should be connected
in parallel.
Long backup models
are available with 8A
battery charger inte-
grated in the UPS (no
internal batteries).
Automatic load
start-up
After a power outage,
the UPS transfers to
battery. If the batteries
are completely dis-
charged and the sys-
tem shuts down, with
the automatic load
start up feature, the
UPS will restart auto-
matically once the
mains power is recov-
ered.
The operator can enable, disable or
configure this function through the
LCD panel according to the following
options:

UPS will charge the batteries and
the inverter will start automatically
(default)

UPS will charge the batteries and
start immediately on bypass. In this
case, the operator has to start the
inverter manually.

UPS will charge the batteries and
no output power will be seen
either on bypass or on inverter. In
this case, the operator has to start
the inverter manually.

Emergency power off (EPO)

Activating the emergency power off
control of the UPS, the AC and the
DC sources to the load are entirely
disconnected.
Operation: To recover the UPS's
normal status, the EPO connector
Page 3
has to be set back to its original con-
figuration (Normally closed through a
jumper in the UPS rear panel). After
this, the EPO status has to be
cleared through the LCD menu and
the UPS will recover its operation in
bypass-mode. To transfer the UPS
to inverter-mode, the selection has
to be made through the LCD display.
Wide input voltage and
frequency range
With higher input tolerances, the UPS
works longer on bypass or normal
mode. This helps reducing the con-
sumption of the batteries when there
are small variations in the power sup-
ply.

Paralleling

PowerValue 11/31 T 10 and 20 kVA
UPS can be installed in parallel to
increase the total system power or to
add redundancy to the system.