172 GC315xx and GC400xx Technical Manual
This protection is only enabled if the engine has been started by the controller (if the command
for the fuel solenoid is activated) Type is configurable with parameter P.0323 (though it cannot
be configured as warning).
In electrical engineering, this protection is known as protection “51”. Using the parameter
P.0324, it is possible to convert this protection in protection “51V”. Protection “51V” is identical
with protection “51”, but it involves a percentage reduction of the current threshold if the
generator voltage drops below its rated. In detail:
If the generator voltage is higher than 80% the rated, the current threshold remains
the one set.
If the generator voltage is less or equal to 20% of the rated, the current threshold
becomes 20% of the one set.
If the generator voltage is between 20% and 80% of the rated, the current threshold
is reduced in percentage.
To activate protection “51V” instead of “51”, you need to set parameter P.0324 to 2 or 3.
Type: Alarm
Category: Generic
Related parameters: P.0495 Keyboard options
To disable: P.0495=1
Enabled in: AUTO, TEST, REMOTE START
This protection is always enabled for stop command through the serial ports or via SMS, and
it can be disabled for the “STOP” button by setting in parameter P.0495 the value 1.
It is activated when pressing the “STOP” button on the front panel or sending a stop command
through the serial port or via SMS, while in AUTO, TEST or REMOTE START mode.
Riduzione soglia di corrente
0%
20%
40%
60%
80%
100%
120%
0% 20% 40% 60% 80% 100% 120%
Tensione generatore (% nom)
Current threshold reduction
Current threshold reduction
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