sy
stem.
This load sharing
system provides
more capacity than a single UPS, and can provide
bac
kup
.
1.1
UPS Standard
Features
The UPS has many
standard features
that provide
cost-effective
and
consistently
reliable
power protection.
The
descriptions
in this
section
provide a brief
overview
of the UPS
standard f
eat
ures.
1.1.1
Installation
Features
Power
wiring can be
routed
to the rear of the
cabinet
with
connections made
to
accessible
terminals.
1.1.2
Control
Panel
The control panel,
located
on the front of the UPS,
contains
a liquid crystal display
(LCD)
and
pushbut
ton
switches
to control the
operation
of the UPS and to display the
status
of the UPS
system.
See
Chapter 6,
“UPS
Operating Instructions,”
for additional inf
ormation.
1.1.3
Customer
Interface
•
Building Alarm Monitoring – Up to
three
inputs in the UPS are available to
connect
the facility's
alarm
system contacts. Some system configurations
may limit the
number
of inputs available. The UPS
uses
these
inputs to monitor the building alarms in addition to the UPS
status.
See
Chapter 7,
“Communication,”
for additional inf
ormation.
•
Mini-Slot
Communication Bays –
UPS equipped with two communication bays as
standard.
One of the two
communication bays slotted with a RS232 card as factory default. Min
i-Slot cards can be e a s i l y
installed at the
front (behind door) of the UPS and are
hot-pluggable.
See
Chapter
7,
“Communication,” f
or
additional
inf
ormation.
1.1.4
High-Efficiency
Mode
The 93E MK2
Series
UPS offers a High-Efficiency
(HE)
normal
mode
with
double-conversion
on
demand
that
allo
ws
the UPS to
operate
in
standby bypass
mode.
This
mode
allows the 93E MK2 UPS to
achieve
98%
efficiency
while
still
protecting
the load. See
Chapter
6, “UPS
Operating Instructions,”
for additional
information.
On
setting
the
UPS to work in High Efficiency
mode.
1.1.5
Advanced Battery
Management
A
t
hree-stage
charging
system increases battery service
life by optimizing
recharge
time, and
protects
batteries
from
damage
due to high
current
charging and inverter ripple
currents.
Charging at high
currents can
overheat
and
damage
bat
teries.
1.1.6
Maintenance
Bypass
The internal
Maintenance Bypass
93 MK2 UPS
consists
of input,
output
and
bypass
input (Dual f
eeds)
switches used
to control the AC input to the UPS the inverter
output,
and a
Maintenance Bypass switch
used
to partially isolate the UPS so that a limited
number
of
components
can be
serviced without interrupting
po
w
er
to critical
sy
stems.
1.1.7 Dual input
93E MK2 series with dual feed input, with separate rectifier input and bypass input terminals.
1.2
Options and
Accessories
Contact
an Eaton
sales representative
for
information
about the following
options.
1.2.1
External Battery
Cabinet
Battery backup
protection
is provide by
equipping
the UPS
system
with up to four External Battery
Cabinets
(EBCs)
containing sealed
lead-acid,
maintenance-free batteries.
The EBCs are
housed
in single,
free-st
anding
cabinets designed
for
line-up-and-match
installation, but may be installed
separate
from the UPS
cabinet.
1.2.2
Parallel
System
A parallel UPS
system
with up to four UPSs can be installed to provide a parallel capacity and/or
redundant
Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation
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