GE L90 Instruction Manual page 898

Transducer I/O
actual values ...................................................................................... 6-27
settings ...............................................................................................5-422
specifications ..................................................................................... 2-45
wiring ..................................................................................................... 3-28
Transfer files with USB drive
Transformer, in-zone settings
Triangle in Offline Window
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
Unauthorized access
commands .......................................................................................... 5-42
resetting .................................................................................................. 7-2
Unauthorized firmware attempt message
Unauthorized setting write message
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
xvi
......................................................... 4-16
...................................................5-148
............................................................ 4-70
...........................................11-14
.......................... 7-13
...................................... 7-13
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
Unpacking the relay
.............................................................................3-1
Update SCL files prompt
................................................................. 4-70
Update settings with Convert Device Settings
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
URS file does not include IEC 61850 configuration
URS file is part of a device folder
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
V
VAR hour
actual values ...................................................................................... 6-20
specifications ..................................................................................... 2-43
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
INDEX
....................................................7-8
................... 11-5
............................................. 11-14
...... 11-11
............................................ 11-11
................................ 5-125