Trip Log Cause Of Trip Table - Eaton Cutler-Hammer FP-5000 Instructions Manual

IL17569
12.2.2 Trip Log
The trip log contains detailed information on the last 16 trips. An
event is considered a trip if it causes either, or both, Trip 1 and Trip
2 to activate. The trip log gives detailed information on the state of
all I/O, the state of all pickups and operations of protective functions,
and the state of all voltages and currents at the time of trip. The trip
log is useful in determining how, why, and when a trip operation has
occurred.
Each set of trip data recorded in the log is numbered from 1 to 16.
The most recent trip event is always denoted number 1, the oldest
number 16. Once 16 trips are recorded, and a new trip occurs, the
oldest trip is discarded as the new trip is recorded.
Every time the Trip 1 or Trip 2 relay activates, the display immedi-
ately goes to the Trip Log page (unless the user is changing the
settings). On this page is a list of trip events starting with number 1
and going to 16. Each line of the trip log will contain the index
number (1-16), the cause of the event and the date the event
occurred. The majority of the time the Trip 1 or Trip 2 output
contacts are programmed to activate on protective function
operation. In this case the cause of the trip is logged into the title of
the trip log entry. On occasion one of the trip relays will be
programmed to operate on other events, like contact input change
for example. A summary of all causes used in the trip log is in
Table 12.12.
Table 12.12 Trip Log Cause of Trip Table
Cause of Trip Cause Description
27A UV An Auxiliary Under Voltage operation
27M UV A Main Under Voltage operation
46 Iunbal A phase current Unbalance operation
47 Vunbal A main voltage Unbalance operation
50P IOC A Phase current Instantaneous
Over Current operation
50R IOC A Residual current Instantaneous
Over Current operation
50X IOC An IX (ground) current Instantaneous
Over Current operation
51P TOC A Phase current Time Over
Current operation
51R TOC A Residual current Time Over
Current operation
51X TOC An IX (ground) current Time Over
Current operation
55A PF An Apparent Power Factor operation
55D PF A Displacement Power Factor operation
59A OV An Auxiliary Over Voltage operation
59M OV A Main Over Voltage operation
81 OF An Over Frequency operation
81 UF An Under Frequency operation
Effective June, 2001
AccuCurAlm An Accumulated interrupted
Current Alarm
BF A Breaker Failure operation
Bkr Closed A Closed Breaker state has caused
an operation
Bkr Open An Open Breaker state has caused
an operation
BkrAlm A Breaker Alarm (breaker state, breaker
time, close or open coil supervision)
operation
BkrFailalm A Breaker Failure Alarm operation
BrkOpAlm A number of Breaker Operations
Alarm operation
Close Bkr A Close Breaker signal has caused
an operation
COMM A Communication command has
caused an operation
ContactIn A programmed Contact Input has
caused an operation
CurDmdAlm A Current Demand Alarm operation
Gnd Zint A Ground current Zone Interlock
operation
Logic A programmed logic gate has
caused an operation
Open Bkr An Open Breaker signal has caused
an operation
Ph Zint A Phase current Zone Interlock operation
Pickup A Pickup of a protective function has
caused an operation
PwrAlm A Power (Watt, var or VA) Alarm
operation
PwrDmdAlm A Power Demand (Watt, var or VA)
Alarm operation
RLY Test A Relay test has caused an operation
THD CurAlm A THD Current Alarm operation
THD VolAlm A THD Voltage Alarm operation
Zin Trip A Zone Interlock operation
Note: The "Cause of Trip" is reported as "Logic" if the output
Gate Fuction is set to AND, NOR, or NAND.
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