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User’s Manual
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Shutdown failure block (“F21”)
“SPEED ALARM” (terminal 30): this output is enabled if at least one fault relating to the
engine’s speed is present:
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High engine speed block (“OVERSPEED”)
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High generator frequency block (“F04, OVERFREQUENCY”)
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Low generator fr
equency deactivation (“F03, UNDERFREQUENCY”)
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Energy inversion block (“F12”)
“GENERATOR ALARM” (terminal 31): this output is enabled if at least one fault regarding
the generator is present:
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Current overload block (“F06, OVERCURRENT”)
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Contact overload block
(“OVERLOAD”)
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High generator voltage block (“F02, OVERVOLTAGE”)
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Low generator voltage deactivation (“F01, UNDERVOLTAGE”)
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Max power warning (“F49, MAX POWER”)
“OFF-PROG-MAN” (terminal 32): this output is enabled only if the key selector is on AUTO
or on TEST
“OFF SELECTION” (terminal 33): this output is enabled only if the key selector is on MAN,
AUTO or TEST
Further, you can send the remote signals of the single blocks, deactivations and alarms
through the serial interface with the RS 232C device.
From the software release 08.00.25 is it possible to order as option the second serial port of
DST4600A board. It is then possible to connect to this serial port one expansion board
provided with 32 digital outputs or 16 outputs and 16 inputs. The outputs can be used as
additional remote signals. See document EAAN0022, release 03 or successive.
By using parameters from P56 to P59, it is possible to configure the board for taking some
actions related to the active power of the system. These parameters configure two power
thresholds and the related filter time. Outside the zone defined by the thresholds (P56 and
P58), the board takes some actions. Till to the revision EB02200080036 it could only signal
the low power status. From the revision EB02200080037, it can alternatively signal the
maximum power status. This function is disabled in the following situations (whatever is the
action selected):
P56 = 0
P58 = 0
P56 >= P58
To select an action, you have to operate with the bit 7 of parameter P61. If not set, the board
will signal the low power status, if set the board will signal the maximum power status. This is
true from revision EB02200080037, for the previous revisions the only action was the low
power signaling.
The signal is performed by a digital output (“OUTPUT 1”, terminal 37). The next two
paragraphs describe the available actions in details.
