Sices HS 315, Техническое руководство

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Technical Handbook 211
the plant battery). Since there isn’t a DC measure for the common bar, the protection works
with the loads DC voltage if LCB is closed.
If LCB is opened, and both generator and auxiliary source are generating currents, the
protection uses another voltage, evaluated in the following order:
•
Plant battery DC voltage if BCB is closed.
•
Generator DC voltage if GCB is closed and the engine is running.
•
Auxiliary source DC voltage.
This protection is activated if the measure of the voltage remains continuously above to
threshold P.9748 (percentage of the rated voltage P.9641) for time P.9749.
Type: Warning / Alarm
Related parameters: -
To disable: -
Enabled in: MAN, AUTO, TEST, REMOTE START
Override: -
This anomaly signals a wrong configuration of the parameters of the controller. When it is
activated, the page S.02 shows a description that explains the problem:
•
Battery voltage not acquired (alarm). Check the configuration for terminals JG, JH
and JQ:
o
If this voltage is connected to terminals JQ, set P.9635
with the function “032
– DC voltage for the battery”.
o
Otherwise, there should be:
▪
One terminal of JG or JH configured with t
he function “033 – DC
voltage for the battery (+)”.
▪
One terminal of JG or JH configured with the function
“034 – DC
voltage for the battery (-
)” or with the function “051 – Common
terminal (-
) for DC voltages”.
•
Battery current not acquired (block). Check the configuration for terminals JU: one
of them must be configured with the f
unction “031 – DC current for the battery”.
•
Negative battery voltage (block). Swap the two wires that connect this voltage to
the controller.
•
Negative generator voltage (DC) (block). Swap the two wires that connect this
voltage to the controller.
•
Negative loads voltage (block). Swap the two wires that connect this voltage to the
controller.
•
Negative auxiliary source voltage (DC) (block). Swap the two wires that connect
this voltage to the controller.
•
Charge current (BULK) limited to nominal (warning). The generator is not able to
charge the battery with the required current (P.9675 or P.9682, see 8.5.7) because
the loads are absorbing too much current (the sum of the two is more than the
generator nominal current).
•
JG4 can be used for generator neutral only (warning). The controller is configured
to acquire at least one AC voltage of the generator: in this case, the terminal JG-4 can
be used only to acquire the neutral (otherwise leave P.9614
= “000 – Not used”).