Eaton Cutler-Hammer Digitrip RMS 510 - Page 55

Page 54
AD 33-855-4
10.2
Setting
Digitrip
RMS
Communications
Addreis
(Digitrip
RMS
810
&
9'10
Kits
OnlY)
NOTE:
Setting
Digitrip
RMS
PowerNet
Address
providLs the
Trip
Unit
a unique
identifica-
iion
for
communications.
PowerNet
com-
munications
may
be compromised
unless
the
Trip
Unit,
Breaker,
and
Switchgear
Cell
are
matched.
To
enable
the
INCOMM
communications
system
to
identifv each
Circuit
Breaker
individually,
the
Dioitri; BMS
810
& 910
Trip Units
have
a unique
thrie
digit
"ADDRESS"
which
INCOMM
uses
to
identify
the
Trip
Unit
and
the
Circuit
Breaker
it
controls.
NOTE:
Digitrip
81
0 &
910
Trip
Units
will already
co-ntain
a factory-set
Baud
Rate
and
Address
which,
in
general, will
not
apply
to
vour
network.
For
proper
communications,
each
Trip
Unit
Address
and
Baud
Rate
must
be
set
to
the
values
applicable
for
your network.
Similarly,
prior
to
the
instal-
iation
of a
Trip
Unit
into
its
Circuit
Breaker'
or
prior to
installation
of
a Circuit
Breaker
into
its
compartment
(after
maintenance
for
example),
the
user
should
verify
that
the
Baud
Rate
and
Address
are
correct
Failure
to
use
the
correct
Baud
Rate
or Address
can
confuse
the
communication
system'
lt
is
recommended
that
the
appropriate
Baud
Rate,
Address,
and
Circuit
Breaker
Cell
location
or
bus
or
circuit
reference
be
recorded
in
the spaces
provided
on
the
Trip
Unit
Display
Panel,
for
future
reference
(see Figure
10-4).
The user
can
view
the
present Address
and
assign
a
new
3-digit
Address
by
the
following
the
proce-
dure
detailed
below.
NOTE:
The
Breaker
need
not
be
open
and
may be
carrying
current'
1.
Press
and
continue
to
hold
in
the
"Trip
Reset"
push button
(see
Figure
10-4)'
2.
Watch
the
display
window
and,
after
about
5 seconds,
the
kA, MW,
or
MWh
value
will
disappear,
and
either
the
letter
H or
L
(Baud
Rate
code),
followed
by
the 3-digit
Address
(between OOt
ana
999,
there
is
no
000)
will
appear.
(You
do need
to continue
to
hold
in
the
"Trip Reset"
push
button.)
To increment
the Address,
press
and
release
the
"Demand
Reset"
push
button
near
the
display
window
(see
Figure
10-2).
The
Address
will
increase
by one
unit
each
time
you
press
the Demand
Reset
push
button.
lf
you
press
and
hold
the
Demand
Reset
push
bution,
the
Address
will
increase
continuously,
slowly
at
first,
and
then
faster
as
you continue
to
hold
the
button
in.
(Continue to
hold
in
the
Trip
Reset
push
button
while
you do
this.)
To decrement
the
Address,
press
and
release
the
"Step"
push
button,
also
located
near
the
display
window
(see Figure
10-4).
The Address
will
decrease
by
one
unit
each
time
you
press
the Step
push
button.
lf
you
press
and
hold
the
Step
push
button,
the
Address
will
decrease
continuously,
slowly
at first,
and
then
faster
as
vou continue
to
hold
the button
in.
(Continue
to
irold
in the
Trip
Reset
push
button
while
you
do
this.)
The
letter
"H"
refers
to
the
High
(9'600)
Baud
Rate;
and
the
letter
"L" refers
to the
Low
(1
.200)
Baud
Rate'
An
"X" in
the
Baud
Rate
iietd
indicates
that
neither
High
nor
Low
Baud
Rate
has
been
selected.
Press
and
release
the
"Test"
push
button
to change
the
Baud
Rate'
(You
do
need
to continue
to
hold
in the
Trip
Reset
push
button.)
Suooestion.'
Before
you
press
and
release
the
"Ie?
'pusfr
button
set the
"Test
Amps"
switch
to 1 to
minimize
the
effect
of an
unintended
test,
which
can
occur
if
your other
finger
.would
happen
to
come
off
the
"Trip
Reset"
push
buion.
For
conect
communications,
be
sure
to
use
the
Terminating
Resistor
at the
end
of
the
tuvisted
pair
(last
element
in the
INCOMM
chainl.
Fiqures
1O-5,
10-6,
and
10-7
show
the
tocation
6f
the
Terminating
Resisto/:
Refer
to
T
D.
17-531
for the
correct
PowerNet
wiring
specification.
4.
5.
6.
When
the
Address
and
Baud
Rate
code
in
the
display
window
are
correct,
release
the
"Trip
Reset;
push
button
to save
the
values
into
the
Trip Unit's
non-volatile
memory
and
the
kA'
MW,
or
MWh
value
will
return
to
the
display
window
lf control
power is lost,
the
Trip Unit
will
still
know
its
(new) Address
and
Baud
Rate'
ElT.il
Effective
9/01