DSE Model 5520 Automatic Mains Failure Control and Instrumentation System Operators Manual
5520 OPERATING MANUAL ISSUE 1 04/02/05 AM
33
3.11
CONTROL PUSH-BUTTONS
STOP/RESET
Thi
s
push-
but
t
on
pl
aces
t
he
modul
e
i
nt
o
i
t
’
s
Stop/reset
mode. This will
clear any alarm conditions for which the triggering criteria have been
removed. If the engine is running and this push-button is operated, the
module will automatically instruct the change-over device to unload the
generator
(
‘
Load transfer
’
becomes
i
n-
act
i
ve
(
i
f
used)
)
. The fuel supply
will be removed and engine will be brought to a standstill. Should a
remote start signal
be present while operating in the
Stop/reset
mode,
a remote start will not occur.
MANUAL
This push-button is used to allow manual control of the generator
functions. Entering this mode from any other mode will initially not cause
any change of operating state, but allows further push-buttons to be used
to control the generator operation. For example once in
Manual mode
it
is possible to manually start the engine by using the
‘
START’
push-
button. If the engine is running off-load in the
Manual mode
and a
remote start signal
becomes present, the module will automatically
instruct the change-over device to place the generator on load
(
‘
Load
transfer
’
becomes
act
i
ve
(
i
f
used)
)
. Should the
remote start signal
then
be removed the generator will remain on load until either the
‘
STOP/
RESET’
or
‘
AUTO’
push-buttons are operated.
START
This push-button is used to manually start the engine. The module must
first be placed in the
‘
MANUAL
’
mode
of
oper
at
i
on.
The
‘
START’
button
should then be operated. The engine will then automatically attempt to
start. Should it fail on the first attempt it will re-try until either the engine
fires or the pre-set number of attempts have been made. To stop the
engine the
‘
STOP/
RESET’
button should be operated. It is also possible
to configure the module such that the start push-button must be held to
maintain engine cranking.
NOTE:-Different modes of operation are possible - Please
refer to your configuration source for details.
AUTO
Thi
s
push-
but
t
on
pl
aces
t
he
modul
e
i
nt
o
i
t
’
s
‘
Aut
omat
i
c’
mode. This
mode allows the module to control the function of the generator
automatically. The module will monitor the
remote start input
and once
a start condition is signalled the set will be automatically started and
placed on load
(
‘
Load transfer
’
becomes
act
i
ve
(
i
f
used)
)
. If the starting
signal is removed the module will automatically transfer the load from the
generator and shut the set down observing the
stop delay timer
and
cooling timer
as necessary. The module will then await the next start
event.
For further details please see the more detailed description of
‘
Aut
o
Oper
at
i
on’
ear
l
i
er
i
n
t
hi
s
manual
.