Critical Power
Modifications reserved
Page 17/146
GE_UPS_OPM_TLE_SCE_M60_M80_1GB_V020.docx
User Manual
TLE Series 600 & 800 CE S1
4.2
OPERATION MODES
4.2.1
Normal VFI Operation Mode (Voltage Frequency Independent)
Under normal conditions the
Load
is
permanently powered by the
inverter
with
constant amplitude and frequency.
The
Rectifier
, powered by the
Mains
, supplies
the
inverter
and the
battery-charger
keeps the
battery
fully charged.
The
inverter
converts the DC voltage in a new
AC sine wave voltage with constant amplitude
and frequency independently from the input
Mains Power
.
Fig. 4.2.1-1 Block diagram normal VFI operation mode
4.2.2
eBoost™
Operation Mode (option)
eBoost
™
e
High efficiency (up to 99%)
Boost
Fast power transfer (< 2ms)
When the
eBoost™ Operation Mode
is
selected, and the
Mains Power
is available,
the
Load
is normally powered through the
Automatic Bypass
.
When the
Mains Voltage
is detected out of
the prescribed tolerances, the
Load
is
automatically transferred to the
Inverter
.
When the
Mains
recovers, the
Load
returns to
the
Automatic Bypass
after a variable time
defined by the control unit.
Fig. 4.2.2-1 Block diagram
eBoost™ Operation Mode
The
eBoost™ Operation Mode
can be used for
single units
or the
RPA Parallel System
, for up to 6 UPS
modules, with all units individually able to supply power through a redundant communication bus.
The
eBoost™ Operation Mode
can be configured directly by the user for higher efficiency, considering
the
Mains
reliability and criticality of the
Load
.
The selection between the two operation mo
des “
VFI
mode and
eBoost™ Operation Mode
”, or switching
between operation modes at required time, can be done through the UPS
control panel
(see
Section 7.4
/ eBoost
).
NOTE !
The
eBoost™ Operation Mode
is available only if enabled at the factory or by a
GE
GLOBAL SERVICES FIELD ENGINEER
.