DSE Model 5220 Automatic Mains Failure & Instrumentation System Operators Manual
14 057-012 5220 OPERATING MANUAL ISSUE 5.1 18/06/2007 AM
GENERATOR HIGH FREQUENCY if the module detects a generator output frequency in excess
of the pre-set trip a shutdown is initiated.
The
icon will illuminate.
Generator High Frequency is not delayed, it is an immediate shutdown.
GENERATOR LOW FREQUENCY, if the module detects a generator output frequency below the
pre-set trip after the Safety On timer has expired, a shutdown is initiated.
The
icon will illuminate.
GENERATOR HIGH VOLTAGE if the module detects a generator output voltage in excess of the pre-set trip a
shutdown is initiated.
The
V
icon will illuminate.
High voltage is not delayed, it is an immediate shutdown.
GENERATOR LOW VOLTAGE if the module detects a generator output voltage below the below the pre-set trip
after the Safety On timer has expired, a shutdown is initiated.
The
V
icon will illuminate.
OIL PRESSURE SENDER OPEN CIRCUIT, if the module detects a loss of signal from the oil pressure sender
(open circuit) a shutdown is initiated. The LCD will indicate:-
(Steady) (And ‘-----‘ on the engine oil pressure instrument). Sender failure is not delayed, it is an immediate
shutdown.
AUXILIARY INPUTS, if an auxiliary input has been configured as a shutdown the appropriate LCD segment will be
displayed:-
!
LOSS OF SPEED SIGNAL, if the speed sensing signal is lost during cranking, a shutdown is initiated.
The
icon will illuminate. (Steady) (And ‘-----‘ on the engine RPM instrument).
NOTE:- This will only occur if the speed sensing signal is lost during cranking or during the safety
on timer. If the signal is lost during normal operation the Generator will shutdown with an Under-speed
alarm.
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