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+24 VDC Power System User Manual (Section 6013)
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Rev. G
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MCA Display
Refer to "Navigating the MCA" for MCA Display descriptions. The display times out (goes back to "SYSTEM OK"
or "ALARMS ACTIVE") after a predetermined non-adjustable time period of no user input activity.
MCA Front Panel Accessed Interface Pad
Table 1:
MCA Controls and Indicators(cont'd on next page)
Control / Indicator
Description
FUNCTION SELECT UP
FUNCTION SELECT DOWN
(Arrow Pushbuttons)
Moves up and down, respectively, through the list of available entries in the currently
displayed menu.
FUNCTION SET ENTER
(Pushbutton)
Used to move to another menu, as determined by the currently displayed entry. Also used
to lock the displayed setting or value of the currently selected menu entry, when in the
adjustment or change setting mode.
Note:
Pressing the ALARM CUTOFF pushbutton and the FUNCTION SET ENTER
pushbutton simultaneously, allows the user to enter the adjustment or change
setting mode, to change the value or setting of the currently selected menu entry, if
available.
FUNCTION SET YES (+)
FUNCTION SET NO (-)
(Pushbuttons)
Used to increase or decrease the value of the currently selected menu entry when in the
adjustment or change setting mode.
Note:
Pressing the FUNCTION SET YES (+) and NO (-) pushbuttons simultaneously
moves the user to the "Initial Message" display (beginning).
Note:
When in the adjustment or change setting mode, depressing the FUNCTION SET
YES (+) pushbutton after the "ARE YOU SURE? +
-" prompt accepts the new value
or setting, depressing the FUNCTION SET NO (-) pushbutton after the "ARE YOU
SURE? +
-" prompt cancels the adjustment or change setting mode without making
any changes.
ALARM CUTOFF
(Pushbutton)
Silences the audible alarm connected to the system. Any new alarms will reactivate the
audible alarm. (No function when not equipped with external MCA Audible Alarm relay
contacts.)
Note:
Pressing the ALARM CUTOFF pushbutton and the FUNCTION SET ENTER
pushbutton simultaneously, allows the user to enter the adjustment or change
setting mode, to change the value or setting of the currently selected menu entry, if
available.
ALARM CUTOFF
(Indicator)
Illuminates yellow when the MCA audible alarm has been silenced using the ALARM
CUTOFF Pushbutton. (No function when not equipped with external MCA Audible Alarm
relay contacts.)