www.altronicinc.com 9
DD-40NTV DIGITAL ANNUNCIATOR
NOTE:
a.) TEST cannot be used
until the start-up timer
interval ends – [01] on
the display.
b.) A display reading of [09]
means the system output
will not activate unless the
STOP button is pushed.
c.) Do not leave a sensor
number on the display
after the last test; push
the TEST button to get
[09] on the display; then
wait two minutes until
[01] displays or select
the CANCEL TIMERS
feature.
d.) For a complete system
test, allow the test timer
interval to expire – display
changes from [09] to [01]
– then cause one sensor
to fault and allow the sys-
tem output to activate.
This will test the entire sys-
tem for correct operation
upon a fault with minimal
downtime.
6.1 OPERATING SEQUENCE
MACHINE DISPLAY FUNCTION DESCRIPTION
Down [10-57] Shutdown
Shutdown caused by the fault number
indicated. Number will remain until fault
is corrected and RESET button depressed.
[60]
Shutdown
Shutdown caused by depressing STOP button.
[70]
Shutdown Shutdown caused by overspeed.
[71] Shutdown Shutdown caused by loss of RPM signal.
[72]*Shutdown Shutdown caused by underspeed. This is
a Class C function which is armed when
the setpoint is exceeded by 100 RPM.
[80] Shutdown Push TEST button when down, indicates
battery is OK.
[00] Reset
Before starting machine, momentarily push
the RESET button. A display of [00] indicates
all Class A sensors are ready for start-up.
Any number 10-57 indcates a faulted sensor
that must be cleared before start-up.
[60]
Engine Purge
To purge engine prior to start, depress
the STOP button, roll the engine to
purge, then push the RESET button.
Engine can then be started provided
display reads [00].
[61]
Shutdown
Shutdown caused by DE, a serial stop
command.
Running [00] Start-up Start-up timers have Class B1 and B2
points disarmed. All Class A points are
being monitored. Pushing the RESET
button re-cycles the start-up timers. To
cancel the start-up timers, press the
ENTER key, followed by the DOWN key
while still depressing the ENTER key.
[01] Normal
All points are being monitored. The transi-
tion from [00] to [01] indicates the end of
the last start-up timer interval.
[89] Test From [01] display, press and hold TEST
button; indicates adequate operating
voltage.
[09] Test
Press and release TEST button – a timed test
period is initiated for approximately two
minutes. As a sensor is faulted, its number
is latched on the display (but the output is
not activated). To move to the next point,
rstclearthesensor,thenpushtheTEST
button again. The display reverts to [09] until
the next sensor is faulted. After the last test,
push the TEST button to get [09] on the
display; wait two minutes until [01] displays.
[01] Normal
Test period has ended; all points are being
monitored. DO NOT LEAVE MACHINE UN-
LESS DISPLAY READS [01].
