Menus - GE L90 Instruction Manual

4 HUMAN INTERFACES
c) FACEPLATE (USER KEY) CONTROL
After the 30 minute interval during which command functions are permitted after a correct command password, the user
cannot open or close a breaker via the keypad. The following discussions begin from the not-permitted state.
d) CONTROL OF TWO BREAKERS
For the following example setup, the (Name) field represents the user-programmed variable name.
For this application (setup shown below), the relay is connected and programmed for both breaker 1 and breaker 2. The
USER 1 key performs the selection of which breaker is to be operated by the USER 2 and USER 3 keys. The USER 2 key
is used to manually close the breaker and the USER 3 key is used to manually open the breaker.
ENTER COMMAND
PASSWORD
Press USER 1
To Select Breaker
BKR1-(Name) SELECTED
USER 2=CLS/USER 3=OP
(1)
USER 2 OFF/ON
To Close BKR1-(Name)
(2)
USER 3 OFF/ON
To Open BKR1-(Name)
(3)
BKR2-(Name) SELECTED
USER 2=CLS/USER 3=OP
e) CONTROL OF ONE BREAKER
For this application the relay is connected and programmed for breaker 1 only. Operation for this application is identical to
that described above for two breakers.
a) NAVIGATION
Press the MENU key to select a header display page (top-level menu). The header title appears momentarily followed by a
header display page menu item. Each press of the MENU key advances through the following main heading pages:
• Actual values
• Settings
• Commands
• Targets
• User displays (when enabled)
GE Multilin
This message appears when the USER 1, USER 2, or USER 3 key is pressed and a
is required; i.e. if
COMMAND PASSWORD
mands have been issued within the last 30 minutes.
This message appears if the correct password is entered or if none is required. This mes-
sage displays for 30 seconds or until the USER 1 key is pressed again.
This message is displayed after the USER 1 key is pressed for the second time. Three
possible actions can be performed from this state within 30 seconds as per items (1), (2)
and (3) below:
If the USER 2 key is pressed, this message appears for 20 seconds. If the USER 2 key is
pressed again within that time, a signal is created that can be programmed to operate an
output relay to close breaker 1.
If the USER 3 key is pressed, this message appears for 20 seconds. If the USER 3 key is
pressed again within that time, a signal is created that can be programmed to operate an
output relay to open breaker 1.
If the USER 1 key is pressed at this step, this message appears showing that a different
breaker is selected. Three possible actions can be performed from this state as per (1),
(2) and (3). Repeatedly pressing the USER 1 key alternates between available breakers.
Pressing keys other than USER 1, 2, or 3 at any time aborts the breaker control function.
L90 Line Current Differential System
4.3 FACEPLATE INTERFACE
is enabled and no com-
COMMAND PASSWORD
4

4.3.7 MENUS

4-25