Sices HS 315, Техническое руководство

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Technical Handbook 169
The delay associated to the input is used as filter time for acquiring the contact. If the input is
activated for the configured delay, the controller activates an alarm (block, for the GCB circuit
breaker) or a latched warning (for the other circuit breakers): these anomalies avoid the
closure of the related circuit breakers.
The alarm codes are:
•
A015 (for GCB).
•
K212 (for ACB).
•
K210 (for BCB).
•
K211 (for LCB).
The general management logic forces the ACB, BCB and LCB circuit breakers always closed.
For GCB, instead, it depends on the presence of the closure command (see in the following):
if the controller manages the closure command, then the circuit breaker is opened when the
engine is stopped and during start/stop/cooling cycles; otherwise, it is always closed.
For each circuit breaker, the controller can manage the following combination of commands:
•
No commands. If the controller does not acquire the feedback, then it assumes that
the circuit breaker is not present (thus, it is not drawn on page M.01). Instead, if the
feedback is
acquired, then it assumes that the circuit breaker is “externally managed”
(thus it is drawn on page M.01). In
both cases, the “not opened” and “not closed”
conditions are not signalled.
•
Both closure / opening commands. This situation happens with motorized circuit
breakers and contactors. The description at the beginning of the paragraph applies. If
the controller acquires the feedback of the circuit breaker, a possible inconsistency
between command and feedback is signalled by means anomalies.
•
Only the closure command. This situation happens in case of
“protection only” circuit
breakers: the controller can force the opening of the breaker for the trip of its own
protections, but a manual operation is required for the re-closure: in this case, the
breaker is opened only for the trip of the protections, and never for the management
logic. If the controller acquires the feedback of the circuit breaker, a possible
inconsistency between command and feedback is signalled by means anomalies.
The following li
st shows the code for the “not closed” and “not opened” anomalies for the circuit
breaker:
•
D014: GCB not closed.
•
W024: GCB not opened.
•
K013: ACB not closed.
•
W023: ACB not opened.
•
K113: BCB not closed
•
W123: BCB not opened.
•
K114: LCB not closed
•
W124: LCB not opened.