User’s Manual 29
It is a series of many conditions. The most important one is the absence of any block or
deactivation. The remaining conditions depend on the key selector status:
MAN
a)
“START” button pressed.
AUTO
a)
Mains status “Absent” (and no “MAINS SIMULATION”)
b)
“REMOTE TEST” digital input (terminal 46) enabled
c) Periodical Test (if configured through the parameters P18 and P19)
d) Starting command from RS232 serial line
TEST
a) No condition (must always start the engine in TEST mode)
OFF and PROG
a) No condition (must never start the engine in TEST mode)
The immediate stop request is given by at least one of the following conditions:
a) STOP button
b) Presence of any block.
c) Selector on OFF or on PROG
d) Request from serial line or SMS.
The request of stop with cooling cycle is given by at least one of the following conditions:
a) Selector on AUTO and no starting request
b) Selector on AUTO or TEST and presence of a deactivation
The control board can be set to work with engines equipped with an excitation shutdown
system (usually electromagnet with control on the engine stop lever or electro-valve
interrupting the fuel supply), or dropout shutdown ones (standard versions - usually N.C. fuel
supply electro-valve or electro-magnet unlocking the engine stopping condition).
In the first case (EXCITATION SHUTDOWN), the stopping control “STOP SOLENOID”
(terminal 18) is activated for the time set with the parameter P09. If the VOLVO engine EDC
function is enabled (bit 3 of P.61) is enabled, the “STOP SOLENOID” is driven for a fixed time
of 2 seconds. The command is activated at the beginning of the shutdown phase, stays active
for all the set duration and is disabled at the end of the same period.
In the second case (DROP-OUT SHUTDOWN), the stopping command takes the meaning of
permission to the engine’s running, “FUEL SOLENOID” (terminal 22) is activated with the
engine starting command and stays active until the beginning of the stopping command.
