CHAPTER 4: INTERFACES FRONT PANEL INTERFACE
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 4-41
4
User-programmable indicators
The second and third panels provide 48 amber LED indicators whose operation is controlled by the user. Custom labelling
can be done.
User customization of LED operation is of maximum benefit in installations where languages other than English are used
to communicate with operators. See the User-programmable LEDs section in chapter 5 for the settings used to program
the operation of the LEDs on these panels.
Figure 4-49: LED panels 2 and 3 (index template)
Default labels for LED panel 2
The default labels are intended to represent the following:
• GROUP 1...6 — The illuminated GROUP is the active settings group
• BREAKER 1(2) OPEN — The breaker is open
• BREAKER 1(2) CLOSED — The breaker is closed
• BREAKER 1(2) TROUBLE — A problem related to the breaker has been detected
• SYNCHROCHECK NO1(4) IN-SYNCH — Voltages have satisfied the synchrocheck element
• RECLOSE ENABLED — The recloser is operational
• RECLOSE DISABLED — The recloser is not operational
• RECLOSE IN PROGRESS — A reclose operation is in progress
• RECLOSE LOCKED OUT — The recloser is not operational and requires a reset
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.
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.
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