GE T35 Instruction Manual page 157

Transformer protection system
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CHAPTER 4: INTERFACES
Firmware revisions 2.9x and earlier support eight user setting groups; revisions 3.0x and higher support six setting
groups. For convenience of users using earlier firmware revisions, the relay panel shows eight setting groups. Even
though the LEDs have default labels, they are fully user-programmable.
The relay is shipped with the default label for the LED panel 2. The LEDs, however, are not pre-programmed. To match the
pre-printed label, the LED settings must be entered as shown in the User-programmable LEDs section of chapter 5. The
LEDs are fully user-programmable. The default labels can be replaced by user-printed labels for both panels as explained in
the next section.
4.2.4.3 Graphical front panel
The graphical front panel has 14 LEDs. LEDs 1 to 5 are fixed status LEDs, and LEDs 6 to 14 are programmable.
Status indicators
IN SERVICE — Indicates that control power is applied, all monitored inputs/outputs and internal systems are fine, the
relay's test mode is disabled, and the relay is in (online) Programmed mode (under Settings > Product Setup >
Installation)
TROUBLE — Indicates that the relay has detected an internal problem. Check the self-test messages outlined at the
end of the Commands and Targets chapter, and view the event records under Actual Values > Records. For a beta /
pre-release, this LED is always on.
TEST MODE — Indicates that the relay is in Isolated (solid) or Forcible (flashing) test mode. For information, see the Test
Mode section in the Settings chapter.
TRIP — Indicates that the selected FlexLogic operand serving as a trip output has operated. This indicator latches;
initiate the reset command to reset the latch.
ALARM — Indicates that the selected FlexLogic operand serving as an alarm output has operated
T35 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 4-50: LED panel 2 (default labels)
FRONT PANEL INTERFACE
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