System information

CA08104001E For more information visit: www.eaton.com
2.2-17
February 2009
Power Management Systems & Products
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Sheet 02
Network Connectivity
Power Management Systems Central Energy Display (CED)
025
Power Management Systems
Central Energy Display (CED)
Central Energy Display (CED)
General Description
The IQ Central Energy Display II (IQ CED
II) can monitor and display the energy
parameters of up to 50 IQ Energy
Sentinels (see list on Page 2.2-18). The
IQ CED II is a compact, panel-mounted
device which provides a centralized
alternative to individually mounted watt,
watt-hour, and watt demand meters.
Programmable Alarms
The IQ CED II can be programmed
to alarm for any of the following
conditions:
■ Peak demand exceeded user
programmed maximum (individual
or group)
■ Device inactive or no response.
During set-up, the customer is given
the option of deciding whether or not
a security access code is needed to
acknowledge and reset alarms. Alarms
can also be acknowledged and reset
over Cutler-Hammer PowerNet.
Communications
Communications between the IQ CED
II and IQ Energy Sentinels is accom-
plished over a twisted pair of conduc-
tors on the highly reliable INCOM local
area network. A subset of information
equivalent to the IQ Energy Sentinel is
displayed from power sentinels. All
information is still available at a
remote PC.
The IQ CED II communicates to its sub-
network at either 1200 or 9600 baud.
Maximum total distance is 7500 feet.
The IQ CED II may be used to program
the CT ratio settings of Universal mount
IQ Energy Sentinels for external CTs.
The IQ CED II can communicate to its
subnetwork at up to 9600 baud. The
subnetwork of up to 50 IQ Energy or
Power Sentinels may extend up to
7500 feet. This distance is not counted
as part of the main network when tied
back to a monitoring PC.
The remote communications option
can be included at any time by
mounting the PONI module to the
IQ CED II. No reprogramming of
the IQ CED II is required.
Self-Learning
The IQ CED II polls its subnetwork and
stores the addresses of the IQ Energy
Sentinels. This is done automatically
after the unit is turned on for the first
time, or may be operator invoked in
the program mode.
A custom description for each
device can be entered on the 8-digit
alphanumeric window of the IQ CED II
for easy location reference or down-
loaded through Cutler-Hammer
PowerNet software.
Non-Volatile Memory
There is no need to reload after an ac
power loss. The addresses, description
of devices and desired alarming that
are programmed in memory during
the learn mode are retained through-
out a power loss. Unless there has
been a change in the local area net-
work, it is not necessary to re-enter the
learn mode. The real-time clock is bat-
tery backed. Once the time is set, there
is no need to reload it, even if control
power is lost.
User Friendly
■ Operator panel (faceplate) is
self-explanatory.
■ A “HELP” function key scrolls
explanations across the alpha-
numeric window.
■ Self-learning.
■ Minimal external connections
(3 wires for ac input and 2 wires
twisted pair for communications).
Flexible
■ Programmable watt-hour pulse
output for a (user defined) group
of IQ Energy Sentinels.
■ Can be mounted at a remote
location to monitor one or more
assemblies (up to 7500 feet away).
■ Can be mounted directly onto
assemblies.
■ Remote communications option can
be added at any time. No internal
changes are required.
■ Can interface with a variety of
Cutler-Hammer PowerNet networks.