GE L90 - Page 898

xvi L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
INDEX
Transducer I/O
actual values ...................................................................................... 6-27
settings ...............................................................................................5-422
specifications ..................................................................................... 2-45
wiring ..................................................................................................... 3-28
Transfer files with USB drive ......................................................... 4-16
Transformer, in-zone settings ...................................................5-148
Triangle in Offline Window ............................................................ 4-70
Trip bus
FlexLogic operands .......................................................................5-199
logic diagram ...................................................................................5-326
settings ...............................................................................................5-324
Trip LEDs ................................................................................................5-124
Trip output
FlexLogic operands .......................................................................5-199
logic diagrams .................................................................................5-338
settings ...............................................................................................5-334
specifications ..................................................................................... 2-39
Trouble indicator ....................................................................................7-7
Trouble LED ............................................................................................ 3-49
Troubleshooting
access to device ............................................................................... 3-62
breaker not working .....................................................................5-347
dark graphical front panel ........................................................... 5-32
Engineer ................................................................................... 4-71, 4-72
error messages ....................................................................................7-7
setting not working .......................................................................5-347
unit not programmed error .......................................................5-135
Turn off alarm ....................................................................................... 4-35
Two-terminal mode ..............................................................................2-7
TxGOOSE
actual values ...................................................................................... 6-11
settings ................................................................................................. 5-67
U
UDP for TFTP ........................................................................................5-101
UL certification ..................................................................................... 2-53
Unable to access device ................................................................. 3-62
Unable to put relay in flash mode ...........................................11-14
Unauthorized access
commands .......................................................................................... 5-42
resetting ..................................................................................................7-2
Unauthorized firmware attempt message .......................... 7-13
Unauthorized setting write message ...................................... 7-13
Unblocking scheme
FlexLogic operands .......................................................................5-193
logic diagram ...................................................................................5-398
settings ...............................................................................................5-393
Underfrequency
FlexLogic operands .......................................................................5-200
logic diagram ...................................................................................5-340
settings ...............................................................................................5-340
specifications ..................................................................................... 2-37
Undervoltage
auxiliary ................................................................................................2-36
characteristics ................................................................................ 5-302
phase ...................................................................................... 2-36, 5-303
settings ............................................................................................... 5-303
Unexpected restart error ................................................................7-11
Uninstall ................................................................................................. 11-29
Unit not programmed .................................................................... 5-135
Unit not programmed message ....................................................7-8
Unpacking the relay .............................................................................3-1
Update SCL files prompt .................................................................4-70
Update settings with Convert Device Settings ...................11-5
Updates
device not recognized ................................................................. 11-13
firmware ............................................................................................ 11-13
FPGA .................................................................................................... 11-15
instruction manual .............................................................................3-1
order code ..............................................................................................7-3
single-line diagrams not retained ............................................4-24
software ............................................................................................. 11-13
Upgrade device settings .................................................................11-5
Upgrade over Internet message ............................................. 11-14
URS file does not include IEC 61850 configuration ...... 11-11
URS file is part of a device folder ............................................ 11-11
URS settings file ............................................................3-65, 5-60, 11-8
USB port
graphical front panel ....................................................... 4-16, 5-107
specifications .....................................................................................2-48
User accounts
add ..........................................................................................................5-15
authentication by device or server ..........................................5-17
multiple login limitation CyberSentry .........................................2-9
passwords for settings and commands ....................4-61, 5-11
User-definable displays
example ............................................................................................. 5-135
invoking and scrolling ................................................................. 5-134
settings ............................................................................................... 5-134
specifications .....................................................................................2-41
User-programmable LEDs
custom labels .....................................................................................4-44
defaults ................................................................................................. 4-42
settings ............................................................................................... 5-124
specifications .....................................................................................2-41
User-programmable pushbuttons
FlexLogic operands ...................................................................... 5-202
graphical front panel buttons 9 to 16 ....................................4-30
logic diagrams ................................................................................ 5-132
settings ............................................................................................... 5-127
specifications .....................................................................................2-41
testing .......................................................................................................7-3
User-programmable self-test settings ................................ 5-125
V
VAR hour
actual values ......................................................................................6-20
specifications .....................................................................................2-43