IM05805016K
Page 3
Effective October 2007
5.
Operation of Controller
5.1
OFF Mode
In the OFF position the controller prevents the
engine from starting and resets the following
alarms:
•
Overspeed
•
Charger Failure
•
Battery Failure
•
Fail to Start
•
Low Oil Pressure
•
High Engine Temperature
The OFF position will silence all alarms.
Three (3) sets of alarm contacts are provided to
indicate that the controller is in the “OFF” mode.
The contacts are rated for 10 A @ 220 VAC / 32
VDC. Terminals 120 to 128.
5.2 Manual Mode
This position allows the starting of the engines
using the manual crank buttons, Crank #1 and
Crank #2, located below the main display panel.
For added cranking capacity, both Crank buttons
can be depressed simultaneously.
The engine can be stopped by the ‘Local Stop’
pushbutton or by placing the controller in the OFF
mode. The engine will automatically stop in the
case of an OVERSPEED condition.
All alarms, except for “FAIL TO START”, are
active in the MANUAL mode.
Three (3) sets of alarm contacts are provided to
indicate that the controller is in the “MANUAL”
mode. The contacts are rated for 10 A @ 220 VAC
/ 32 VDC. Terminals 63 to 71.
5.3 AUTO Mode
Placing the controller in the AUTO mode
illuminates the “SWITCH IN AUTO” annunciator.
The controller is now ready to start the engine in an
emergency situation.
A drop in pressure, ‘Remote Start’ signal, a signal
from the ‘Deluge Valve’ or Weekly Test Timer will
initiate the “attempt to start” cycle. This cycle
consists of 6 crank periods of 15 seconds duration
separated by 5 rest periods of 15 seconds duration.
Battery 1 and Battery 2 are alternated for each
crank cycle. In the event that one battery is
inoperative or missing, the controller will lock-in
on the remaining battery during the cranking
sequence. Once the engine is running, the
controller will stop all further cranking.
5.4 Stop Modes
The Stop Mode is programmable for either
‘Manual Stop’ or ‘Auto Stop’ (see Figure #2). Note
that the engine can be stopped at any time by
placing the controller in the OFF position or
automatically in case of an OVERSPEED
condition.
Manual Stop Mode:
the engine will continue to
run until the ‘Local Stop’ or ‘Remote Stop’
pushbutton is depressed, providing all starting
causes have been eliminated.
Auto Stop Mode:
the engine will continue to run
until the running period timer (RPT) has timed out
(factory set at 30 minutes) and all starting causes
have been eliminated.
5.5 Weekly Test Timer
Each diesel controller is equipped with a
Weekly
Test Timer,
24 hour clock, to automatically
exercise the engine once a week. The controller
initiates the starting sequence by opening the drain
valve resulting in a simulated system pressure loss.
The drain valve is automatically closed once the
controller receives an “ENGINE RUN” signal. The
engine will continue to run for a minimum of 30
minutes or for the duration of the RPT setting,
whichever is greater. “Weekly Test Started” will be
indicated on the hard copy printout.
In the event that the engine is inoperative at the
time the Weekly Test is to be initiated, the Weekly
Test will commence immediately after the engine is
put in service. This ensures that the engine is
exercised at least once a week for the time
specified as per NFPA Pamphlet No. 20.
In order to protect the engine, during the Weekly
Test sequence, an OVERSPEED condition, LOW
OIL PRESSURE or HIGH ENGINE TEMP alarm
will automatically shutdown the engine.
Before accessing any mode, you must return to
the OFF mode.
CAUTION:
Only depress Crank #1 or Crank
#2 pushbuttons with controller in the
‘MANUAL’ mode.
Do not depress the crank pushbuttons in any
other mode or while engine is running. Doing so
can result in serious damage to the engine.
NOTE:
When the controller starts in this mode there is a 15
second time delay in which the ‘Local Stop’
pushbutton will have no effect.
