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General lnformation
Static
Trip
lllCPX
Protective
Relay
Functions
Protective
Function
Pickup Setting
Range
(SET=)
Time
DelaY
Ranqe
(DLY=)
Current Unbalance
Voltage Unbalance
Overvoltage
Undervoltage
Reverse Power
Overfrequency
UnderfrequencY
5-50%
60-660v
60-660v
1
0-2000kw
50-70H2
45-60N2
5 seconds
5
seconds
5
seconds
5
seconds
5
seconds
5 seconds
5 seconds
?
Logging Functions
airi; i;p
IllC/CP/CPX
modeltrip
units
include several
logging
trn"tion. for
recording tripping
events,
pickup
conditions'
af
armictivity
and
mini-mum
and
maximum measured values
Afi
fogg"O
datu is
accessible via
the
communications
bus'
Most"oj
the
information
can
also
be read
using
the
BDU
u""".ioty
Accurate time-stamping
of
trip
and event log data
Lqrii".
fj"tiodic
synchronization
via the
communications bus
,.ilg ,
master
deiice
such
as
the Power Monitor
display
and
,onfioting
device.
The
logging capabilitieswith
type
of
memory'
u"
"
".i
i
oii tv,
an
d
ti
m
e
-
st"im
I
c
h
a
racte
r
i
sti
c
s
a
re
s
u
m m a
r
i
ze
d
in
the
following
table:
Remote OPen/Close/TriP
b]:rii"
iiip'rtalcptcpx
trip
units
can
be wired to
open
and/or
"ni"
un electrically operated
circuit
breaker
on
command
tro,
u
io*".
Monitor-il unit or other master
device
using the
nS
+g5 communications
port
The alarm output
is
used
for
the
:o"p"n;
iomrano,
thereby restricting use
for
other
alarm
tuictiont.
The
'trip'
command
uses
the
tripping
actuator
to
oo"n
tt
"
circuit
breaker and requires no additional compo-
;;;i.;i*iti;g.
Not"
that
if a
bell alarm
contact
is
installed
on
ttre
clrcuit bre"aker using the "trip" command
may
cause other
,nint"nO"O functions such
as
prevention
of
automatic
thr;;;";;
Care should
be
taken
to
select either "open"
or
itrio"
functions
to
meet
the
intended
application' All
open'
close
anO
trip communication commands
are
secure to
pre-
,enl
unintenOed operation, and can
be
disabled
atthe trip unit
Functional Characteristics
Summary
The{unctionalcharacteristicsofStaticTripllltripunitsare
.rr*utiruO
in
the
following
table
The
catalog
number
desig-
"rti"..
on
tf,"
front
of thd
trip
unit delineate
the
trip
unit's
l[rir"t"titti"s.
An
explanation
of
the catalog
number
desig-
nuiion
is
given
in
the
Ordering
lnformation
section'
l_;
O The
non-volatile memory
is
EEPROM
which
requ
res
no
batterles
and
is
unaffected
by loss
of
control power'
The
actjve memory requires control power
to maintain data.
OTheactua|numberofeventsthatmayberecordeddepencsonmemory
-
required
foreachtypeof event
The
nominal
numberof
recorded events
isten'
fvents
include pickup active and
inactive,
circuit breaker
positLon
change'
alarm
setpoint activation and
release,
and alarm
relay
activation'
The most
recent events are retained
O
Onty
tne
most recent
trip
event is avallable to
the BDU'
without time-starnp
information.
o
ihlnLrl,*
fog
information
isaduplicateof
the
EventLog
messageassoclated
-
*ltn
t"iuy acivatlon
thereby providing a local readout
of
whai causedlhe
uf
rr,
l."f
uV
to activate. Thls
feature
provides the
flexibillly to
read all critical
data trom ine trip
unit
when the BS-4g5 network cornmuntcations
capab lity
s
not Oeing used or is
not
fully implemented
by
the
master
device
Alarm OutPut
A;i;d*d'feature
on
Static
Trip
lllC/CP/CPX
trip
units
is
an
alarm output. Any
of
the
trip
unit's
measured,parameters
can
b"
."t
to
activateihe
output based
on
threshold and delay
set-
poinii. n"ti"ution
o{ the output
is
recorded in the
trip
unit's
Su"niiog
for
remote
signaling
via the
communications
bus
The
trip
unit
alarm
output is
a
solid
state optically
isolated
f
OOrn
f
iV
signal
An
interposing
relay
is
required to provide
,
tR
IZOV
u"ilZSV dc
NO
solid state contact for
integration
into
af
ut,
or control schemes
(see
Accessories section)'
O
Fequires additional
wiring
to
meet
speclfic appllcation
O
Supports
optlonal
Breaker
Display
Unit
accessory'
@
Included
when
ground
fault
protectron
specified'
6,
Bequires
"N"
optlon
and
neutral current sensor'
o O;;;
command
uses alarm relay output and
restricts
use for other alarm
-
frn"tions.
Close
command
requires
electrically operated
breaker'
Logging
eharacteristic
Trip
lod
Event
lod
Alarm
l6d
Min/Max
l^d
Tvne of
l\.4emorv
O Non-volatlle
Active
Active
Non-voLati e
lnformation
Stored
Last three
tripping
Approxl-
mately ten
events
2)
Yes
Last alarm
relay
Mrn/Max
lor
all
real{ime
meas-
rrrarl narametert
Time-Stamped
at
Trip
Unit
Yes
NO
No
ACC
essib
e
Via
BS-485
Comm.
Port
Local
BDU
Comm.
Porl
Yes
Yes
O
Yes
No
No@
Yes
Yes
Yes
opt
opt
opt
Self-Powered Overcurrent Protectlon
RMS
Sensing
Switchable Thermal
MemorY
Ground
Fault Protection
LCD Target
Protective
Microprocessor Watchdog
Pickup LEDs
lone
lnterlochlnq
u
opt
opt
l.
BS-485 Communications Port
Breaker
DlsPlaY
Unit Port
a
Communlcations Microprocessor
Watchdog
Comm
Watch
LED
Backup' Shadow"
Protection
Trip
Log
Alarm
RelaY
OutPut
0
Trip Unit Status lndrcation
Breaker Posttion Indication
Breaker OPeration Counter
Communication
OpenlCloseiTrip
OO
Event Log
Phase Current Meterlng
Ground Current Metering
@
Neutral Current Meterlng
G)
Power IVeterlng Functions
Min/Max Power Log
Extended Protective
RelaYing
Extended TriP Log
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