Sices HS 315, Техническое руководство

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Technical Handbook 123
In addition, the controller makes available the auxiliary source statuses for the AND/OR logics
by means of the following internal statuses:
•
ST.016
– “Auxiliary source present (voltages/frequency)”.
•
ST.017
– “Auxiliary source absent or out of thresholds”.
•
ST.018
– “Delay for auxiliary source in thresholds”.
•
ST.019
– “Auxiliary source in thresholds”.
•
ST.020
– “Delay for Auxiliary source absent or out of thresholds”.
The following functions, for the configuration of analogue outputs, are linked to the auxiliary
source management. The outputs are managed based on an auxiliary source analogue value.
Use the "conversion curves" to adapt the single value to the output (0-100%):
•
AOF.3201
(“Frequency of the auxiliary source”).
•
AOF.3211
(“Voltage of the auxiliary source (AC)”).
•
AOF.3213
(“Voltage of the auxiliary source (DC)”).
•
AOF.3221
(“Power of the auxiliary source”).
•
AOF.3231
(“Current of the auxiliary source (DC)”).
HS315 implements 4 different protections for the auxiliary source current:
•
One warning for high current (W232, parameters P.9731, P.9732 and P.9733).
•
One latched warning for maximum current (short circuit) (K234, parameters P.9731,
P.9734 and P.9735).
•
One latched warning for time dependent maximum current (K233, parameters P.9736
and P.9737).
•
One latched warning for current reverse (K235, parameters P.9731, P.9738 and
P.9739).
The latched warnings (K234, K233 and K235) force the opening of the ACB circuit breaker (if
present).
No voltage protections are provided for the auxiliary source. In fact:
•
If the controller is able to detect the status of the auxiliary source (it has AC measures,
has separation diodes for DC voltage, has an external status contact, or it is not
connected to other active sources
– generator and plant battery), when the status is
not “In tolerance” the controller opens the ACB circuit breaker (
but only if it could be
closed again, I mean if the controller has the closure command ).
•
Otherwise, the trip of the voltage protections on the loads opens the ACB circuit
breaker (the minimum voltage protection only if the controller is not in MAN mode).
Note: the voltage protections on the loads work on the common bus voltage if
the LCB circuit breaker is opened
. Once ACB is opened, the controller can detect
the status of the auxiliary source:
o
If it is “In tolerance”, the controller can re-close ACB (unless the common bus
voltage is still out of thresholds).
o
If it is not “In tolerance”, the controller does not close the ACB.