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GF0710_012
M − Linked CDU indication
STAT SYS BUS PREV CNTL TEST
PAGE
NEXT
PAGE
EMER
CNTL
BUS
CIRCUIT BREAKER − SYSTEM 1/2
CIRCUIT BREAKER SYSTEM
RAD ALT 1
H STAB TRIM 1
H STAB TRIM 2
FUEL COMP B
DISPLAY UNIT 1
TRIP
OUT
OUT
OUT
LOCKED
DC 1
AC 1
AC ESS
DC ESS
DC ESS
ACPC
CCBP
M
BRT
ELECTRICAL
Rev 3, Apr 25, 2005 Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
07−10−11
ELECTRICAL MANAGEMENT SYSTEM (CONT'D)
Circuit breakers can be acknowledged or acknowledged and reset, using the line select keys.
Most recent tripped circuit breaker will automatically highlight. To select another circuit
breaker, use the line select key, this acknowledges and highlights the displayed breaker.
Once acknowleged or reset, the CB TRIP message goes out.
Select activation key adjacent highlighted circuit breaker.
removed from STATUS page
list, after successful reset and
a new status list is selected.
CB TRIP message goes out.
NOTE
Will appear if an attempt to
reset is carried out on a
thermal circuit breaker.
A thermal breaker cannot be
reset using EMS CDU. The
affected circuit breaker can
only be manually reset at its
location.
THERM CB CAN’T BE CHANGED FROM CDU.
2
1
GF0710_013
STAT SYS BUS PREV CNTL TEST
PAGE
NEXT
PAGE
EMER
CNTL
BUS
CIRCUIT BREAKER − SYSTEM 1/1
CIRCUIT BREAKER SYSTEM
H STAB TRIM 1
H STAB TRIM 2
FUEL COMP B
DISPLAY UNIT 1
OUT
OUT
OUT
LOCKED
AC 1
AC ESS
DC ESS
DC ESS
ACPC
CCBP
M
CIRCUIT BREAKER − STATUS 1/1
CIRCUIT BREAKER − STATUS 1/1
IN
LOCKED
TRIP
FUEL COMP B
DISPLAY UNIT 1
RAD ALT 1
H STAB TRIM 1 LOCK
H STAB TRIM 2 OUT
DC ESS
DC ESS
DC ESS
AC1
AC ESS
ACPC
CCBP
THERM CB CANT BE CHANGED FROM CDU
OUT
LOCKED
FUEL COMP B
DISPLAY UNIT 1
H STAB TRIM 1
H STAB TRIM 2 OUT
DC ESS
DC ESS
AC1
AC ESS
ACPC
CCBP
OUT
IN
LOCKED
reduced when reset.
The reset circuit breaker
FUEL COMP B DC ESS will automatically be
DISPLAY UNIT 1 DC ESS
Affected circuit
OUT IN
breaker font size is
NOTE
H STAB TRIM 1 AC1 ACPC OUT
CIRCUIT BREAKER − STATUS 1/1
H STAB TRIM 2 AC ESS CCBP OUT
BRT
RAD ALT 1 DC 1 TRIP
ELECTRICAL
Flight Crew Operating Manual Rev 3, Apr 25, 2005
CSP 700−5000−6
Volume 2
07−10−12
AC SYSTEM EICAS MESSAGES
CB TRIP AC FEED
Indicates that a circuit
breaker for an AC
feeder/AC cabin feeder
has tripped.
RAT GEN FAIL (on ground only)
Indicates that a fault has been
detected in the RAT generator
system during built in test (BIT).
AC ESS BUS FAIL
Indicates that AC ESS
BUS is not powered
or has a fault.
EMER PWR ONLY
Indicates that RAT is
powering the AC ESS BUS or the
battery is powering the BATT BUS.
AC BUS 1 (2)(3)(4) FAIL
Indicates that affected
bus is not powered or
has a fault.
APU GEN OVLD
Indicates an overload
on the APU generator.
GEN 1 (2)(3)(4) OVLD
Indicates an overload
on affected generator
channel.
CB TRIP DC FEED
Indicates that a circuit
breaker for a DC feeder/DC
cabin feeder has tripped.
APU GEN OVERHEAT
Indicates that the APU
generator oil has
overheated.
GF0710_016b
EMER PWR ONLY
AC BUS 1 FAIL
AC BUS 2 FAIL
AC BUS 3 FAIL
AC BUS 4 FAIL
AC ESS BUS FAIL
APU GEN OVERHEAT
APU GEN OVLD
CB TRIP AC FEED
CB TRIP DC FEED
GEN 1 OVLD
GEN 2 OVLD
GEN 3 OVLD
GEN 4 OVLD
RAT GEN FAIL
ELEC SYS FAIL
(on ground only)
Indicates that a major
fault has been detected
in the electrical system.
ELEC SYS FAIL
ELECTRICAL
Rev 11, Apr 17, 2006 Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
07−10−13
AC SYSTEM EICAS MESSAGES (CONT'D)
CB TRIP
Indicates that a circuit
breaker has tripped.
AC BUS 1 (2)(3)(4) MAN OFF
Indicates that the affected
bus has been manually
isolated. All 4 busses cannot
be manually isolated
concurrently.
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