Sices HS 315, Техническое руководство

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140 Technical Handbook
In this stage, the charge of the battery is made at fixed voltage.
The voltage setpoint is configurable by the parameter P.9679
(“Charge (full) voltage in FLOAT
mode”) or P.9686 (“Charge (standard) voltage in FLOAT mode”) (see 9.5.7).
This stage ends after the time configured by P.9680
(“Charge (full) duration in FLOAT mode”)
or P.9687
(“Charge (standard) duration in FLOAT mode”) (see 9.5.7).
If during this stage the battery current becomes higher than P.9675
(“Charge (full) current in
BULK
mode”) or than P.9682 (“Charge (standard) current in BULK mode”) (see 9.5.7), the
procedure goes back to the stage 1 (BULK).
If you do not want to execute this stage, set parameter P.9680 or P.9687 (see 9.5.7) to 0.
See the previous chapter for the description of the voltage control loop.
To correctly manage the storage battery charging process, HS315 must be able to regulate
both the charging current (in the BULK phase) and the charging voltage (in the ABSORBTION
and FLOAT phases). To do this, HS315 always and only acts on the generator voltage.
Depending on the type of alternator, to control the generator voltage (and consequently the
charging voltage/current for the storage battery), HS315 can operate in two ways: it can
connect to the speed governor or to the automatic voltage regulator.
Starting from version 1.09, parameter P.9656 has been added ("Use the speed governor to
control the generator voltage"): for this type of alternators, set it to "
0 - No ".
In generators equipped with this type of alternator, HS315 has two commands:
•
A command towards the automatic voltage regulator: with this command, the
generator voltage is adjusted in order to control the charging voltage/current for the
storage battery. HS315 always uses an analogue output for connecting to the
automatic voltage regulator (see 9.5.8.3).
•
A command towards the speed governor. This command is optional. In these
conditions, the engine speed would normally be constant (1500 rpm). However,
HS315 can automatically change it, to make the engine and alternator operate at the
maximum possible efficiency.
Starting from version 1.09, any virtual analogue input can be used to associate the
more efficient speed to each engine power level: