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24
Instruction Leaflet
I. L. 29-888B
Effective July 2011
Instructions for Digitrip RMS 810 Trip Unit
eaton corporation
www.eaton.com
5.4 Both Remote Master Computer and AEM / BIM
When desired, Digitrip RMS 810 Trip Units can communicate
with either an Assemblies Electronic Monitor (AEM) or a Breaker
Interface Monitor (BIM) and a remote master computer (IBM PC
compatible with CONI or MINT card as noted in Section 5 .2) . The
connections in the network are then made by twisted pairs of wires
as shown in Figure 23 .
Typical IBM (or IBM
Twisted Pair.
No.
18 AWG. (See Section
5.5
for cable specifications.)
----
Cut-off Shield at
Device -D o Not Ground
See Section
Refer to circuit breaker connection diagrams referenced in Section
6 for actual connections.
Modular telephone connector, Type RJ11, supplied by User.
Grounded shielding at computer and AEM / BIM (cable to P1 only) as shown. Where devices are daisy-chained, interconnect shielding,
but do not ground the connection.
1/2 watt carbon resistor required at last breaker. See T.D. 17-513.
CONI Card
Assemblies
Electronic
Monitor
(AEM)
or
Breaker
Interface
Monitor
(BIM)
5.5 INCOM
®
Network Interconnections
INCOM
®
sends bursts of data on a 92 to 11 5 .2 kHz carrier at rates
up to 9600 baud, over twisted pair conductors, to interconnect the
many devices comprising the network .
Recommended cable specifications:
•
Eaton cable catalog #IMPCABLE, Style #2A95705G01;
•
Belden 9463 cable family; or
•
Identical Commscope or Quabbin cables .
These bursts of data can be captured and used in a variety of ways
depending upon the manner in which the master computer software
program is written . For example, the data for the individual phase
current values are available on the network, but the software must
select the appropriate data, decode and display it in a useful manner .
Following an over-current trip operation, the sequence of coded data
varies slightly . The cause of trip, and the value and phase (or ground)
current, responsible for the trip are available on the network . If a
TRIP were initiated due to a Short-Time Delay over-current condition,
for example, the coded message for "SDT" would be transmitted by
the Trip Unit . Once the message is received and interpreted by the
software, the value of current can be retrieved and the applicable
phase can be identified, along with the time of trip and the value of
the trip event counter . As long as control power remains available to
the Power / Relay Module, the reason for trip, and the values of cur-
rent in the other phases, including neutral and/ or ground at the time
Figure 23. INCOM Network with Remote Master Computer and AEM / BIM.
of trip, as well as the values of each protection setting, also remain
available until the Trip Unit is reset . Effective utilization of the infor-
mation available over the INCOM
®
network requires appropriately
designed software, such as the Eaton IMPACC
®
system, or your own
custom software system .
For detailed instructions about interconnecting devices over an
INCOM
®
network, see IMPACC
®
wiring specification T .D . 17-513 .
5.6 lnformation Communicated by Digitrip RMS 810
The Digitrip RMS 810 Trip Unit utilizes the Eaton INCOM
®
serialized
protocol to send out coded messages . The coded messages can be
interpreted by system level software, such as the Eaton IMPACC
®
system, to display any of the information that is listed in Table 5 .
lnformation available for remote display includes:
•
Status of circuit breaker: "Closed", "Open", or "Tripped";
•
All Protection Settings (see Section 3);
•
All information displayed in the Trip Unit window:
•
Phase and Ground or Neutral current values,
•
Power and Energy Demand parameter values,
•
Coded Messages regarding status of the circuit .