Eaton Cutler-Hammer Digitrip RMS 510 - Page 56

AD 33-855-4
Page 55
NOTE:
lf
control
power
is lost while
you
are
changing
the Address or
Baud Rate
(i.e.:
while
you
are still
holding in
the
"Trip
Reset"
push
button),
the display will
go
blank
and when
the control
power
is
restored,
the Trip Unit will
still retain the
previous
Address
and Baud Rate
values,
as if
you
had not been
trying to change
them.
NOTE: As shown
in Figure 10-4,
there is a space
to
record both the
INCOMM Address and
the Cell Number
(to
identify
the Breaker
location
within the assembly)
to
the left
and below the display
window. Because
Trip Units
and Circuit
Breakers of the same
rating are
interchangeable,
if more
than
one
has been
withdrawn
for maintenance
at one
time, it is critical
that each unit
be
returned
to its conect
Cell
location so that
the circuit
has the correct
Address.
For
example,
if
two identical
Breakers
(one
whose
Trip
Unit
Address
is 001 and
the
other
whose Address
is 100)
were
switched,
the INCOMM
communications
system
will be confused
and
the informa-
tion coming
from the 001
Trip Unit, as
well
as
the commands
going
to
the
001
Trip
Unit,
will actually involve
the 1 00 circuit,
and
vice versa.
PBESS AND
RELEASE
(RED)
"TBIP RESET"
PUSH BUTTON TO RESET
TRIP UNIT
TRIP UNIT OPERATIONAL
STATUS
"BLINKING
GREEN"
=
OK
GREEN
LEDS LIGHT
TO IDENTIFY
WHICH
VALUE IS PRESENTLY
BEING DISPLAYED
IN WINDOW
CATALOG NUMBER
PRESS
AND RELEASE
(BLACK)
"TEST" PUSH
BUTTON
TO
INITIATE
SELF-TEST
LED'S LIGHT
"RED"
TO INDICATE
CAUSE OF TRIP
TIME-CURRENT
CURVE
FOR PHASE
PROTECTION
TIME-CURRENT
CURVE
FOR GROUND
PROTECTION
4-CHARACTER
DISPI-AYWINDOW
PRESS
AND RELEASE
'DEMAND
BESET"
PUSHBUTTON
TO.
RESET
PEAK DEMAND
READING
TO ZERO
TRIP UNIT
INCOM
ADDRESS CIRCUIT
BREAKER
LOCATION
REFEBENCES
PBESS AND
RELEASE'STEP"
PUSHBUTTON
TO DISPLAY VALUE
OF
NEXT
PARAMETEB
INWINDOW
RATING PLUG
KEYED RECEPTACLE
FOR AUXILIARY
POWER
MODULECONNECTOR
Fig. 10-4
Digitip Trip Unit
Display
Panel
Effective 9/01
ElT.t