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4.5.2 Alternator Voltage Lower(P03) and Upper Limit(P04), Fault Control Delay(P20)
P03 Alternator voltage lower limit
P04 Alternator voltage upper limit
P20 Alternator voltage fault control delay
Contro on delay
Alternator voltage fault control delay
At the end of
time defined by parameter P19, a fault will be reported if the
generator voltage goes outside the window defined by the upper and lower limits for more
than the time defined as the
(P20). This failure
immediately stops the generating set, without cool-down delay.
P51 Speed lower limit
P52 Speed upper limit
P21 Speed fault control delay
Contro on delay
Speed fault control delay
At the end of
time defined by parameter P19, a fault will be reported if the
generator frequency goes outside the window defined by the upper and lower limits for more
than the time defined as the
(P21). This failure immediately stops
the generating set, without cool-down delay.
4.5.3 Alternator Frequency Lower (P51) and Upper Limit(P52), Fault Control Delay(P21)
This is the time the generator is to run off-load once the load transfer signal has ceased. This
gives the engine time to cool down before shutdown. Parameter P07
defines the duration of this cooling-off period.
Engine cooling time
4.5.4 Engine Cooling Time (P07)
In automatic mode, when the mains has been restored after an interruption, the unit will
switch the load back from the generator to the mains supply after the delay programmed into
P09. This delay allows time for the mains voltage to settle before reconnecting the load.
4.5.5 Mains Transition Delay (P09)
If the battery voltage drops below the defined
, an alarm occurs.
It doesn't stop the generating set.
Battery Voltage Lower Limit
4.5.6 Battery Voltage Lower Limit (P11)
This parameter allows the use of either a Stop solenoid or a Fuel solenoid.
With Fuel Solenoid selected, the fuel solenoid will be energised while the engine is running
and de-energised to cut off the fuel and stop the engine.
With Stop Solenoid selected, the stop solenoid is normally de-energised and only energised
to stop the engine. The solenoid remains energised for the period defined as the
(P14).
Stop
Magnet Energising Time
4.5.7 Stop / Fuel Solenoid Selection (P13)