7
Buttons and Lockout
7 user buttons are provided on the front to allow control and setting up of the FMC-60
system plus a PCB button. These buttons are also numbered and shown in brackets.
E.g. button 3 is (3).
Button 1
is the
Accept/Mute
and
UP
button. When in engineerʼs mode, it is used to
increment parameters which are being modified. Also, it allows the displayed sensor to be
moved onto the next active sensor.
Button 2
is the “
-
“ button. Used when decrementing items in engineers menu, also to
escape from the engineers menu system when not in any specific menu.
Button 3
is the
SELECT
button. It is used to enter and exit many of the engineerʼs menus.
Also when first pressed, it prompts the entry of an engineerʼs password. When correct,
engineerʼs mode displays menus which can be selected by pressing the select button again.
Button 4
is the “
+
” button. Pressing this allows the display to hold the automatic sequence
of sensors being displayed for 999 seconds.
When in engineerʼs mode, it is used to increment parameters which are being modified.
Button 5
is the
DOWN
button. Used when decrementing items in the engineers menu.
Button 6
is the
DIM
button. It is used for dimming the LED and LCD backlight and will
toggle between full brightness and the dim level previously set in the engineers menu. Dim
can be used at any time except when doing an LED test whereby automatic dimming occurs
to reduce current.
Button 7
is the panel
RESET
and is used to clear faults or alarms. It is generally active and
will act regardless of entry of passwords.
To prevent unauthorised use of the buttons, Key lock input is provided on the main
processor PCB, and the buttons are locked out of use when this terminal is connected to 0V
(adjacent terminal) Even when locked, the buzzer can still be muted by pressing the accept
button (1).
Processor reset button
and a flash programming slide switch are situated directly on the
PCB and are not accessible from the front panel.
This button when pressed will restart the processor as if just powered up and should only be
used in the event of a system crash. The slide switch should be in the up position (run) for
normal operation.
