GE C60, Instruction Manual

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GE Multilin C60 Breaker Protection System 4-23
4 HUMAN INTERFACES 4.3 FACEPLATE INTERFACE
4
b) CONTROL MODE SELECTION AND MONITORING
Installations can require that a breaker is operated in the three-pole only mode (3-pole), or in the one and three-pole (1-
pole) mode, selected by setting. If the mode is selected as three-pole, a single input tracks the breaker open or closed posi-
tion. If the mode is selected as one-pole, all three breaker pole states must be input to the relay. These inputs must be in
agreement to indicate the position of the breaker.
For the following discussion it is assumed the
SETTINGS

SYSTEM SETUP

BREAKERS

BREAKER 1(2)

BREAKER
1(2) PUSH BUTTON CONTROL
setting is “Enabled” for each breaker.
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.
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.
4.3.7 MENUS
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
ENTER COMMAND
PASSWORD
This message appears when the USER 1, USER 2, or USER 3 key is pressed and a
COMMAND PASSWORD
is required; i.e. if
COMMAND PASSWORD
is enabled and no com-
mands have been issued within the last 30 minutes.
Press USER 1
To Select Breaker
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.
BKR1-(Name) SELECTED
USER 2=CLS/USER 3=OP
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:
(1)
USER 2 OFF/ON
To Close BKR1-(Name)
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.
(2)
USER 3 OFF/ON
To Open BKR1-(Name)
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.
(3)
BKR2-(Name) SELECTED
USER 2=CLS/USER 3=OP
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.