Sices HS 315, Техническое руководство

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146 Technical Handbook
In AUTO mode, whatever the status of the plant, two causes can anyway inhibit the gen-set
automatic start:
•
operational time range.
•
digital input.
When there is an inhibition active, a flashing lock is displayed in the top right corner of the
display.
Note: the inhibition status does not affect TEST and REMOTE START modes.
The controller can use a digital input programmed for inhibiting the gen-set automatic
operation (function DIF2501
– “Inhibition of start”). In case of a logically “active” input, the
engine is never automatically started, not even if the plants condition requires.
Use parameter P.0207 to set a delay between input's physical activation and this function's
logic activation: however, the delay can only be applied to a controller in AUTO mode,
otherwise the delay is null.
Use parameter P.0208 to set a delay between input's physical de-activation and this function's
logic de-activation: in case the generator is already running, the delay is reduced to two
seconds (fixed).
When a function DIF.2501 is coupled with a digital input, acquisition of this input
depends on the time set in P.0207 and/or P.0208; the acquisition time related to the
digital input is skipped.
The controller also makes available, to the use of AND/OR logics, the internal status ST.080 -
"Start inhibited by contact
”.
The controller records any change of the inhibition status in the events log, if it is enabled with
bit 6 of the P.0441 parameter:
•
EVT.1013: start inhibited by contact.
•
EVT.1014: start inhibition deactivated (from digital input).
Using parameters P.0421, P.0422 and P.0423, it is possible to define on a weekly basis the
hourly operation range. Parameter P.0421 allows to set the generator's weekly operation days.
The remaining two allow to set an hour range valid for all selected days. The range start time
(P.0422) refers to the days set in P.0421, while the range end time (P.0423) refers to the same
day, if its value is higher than P.0422, or to the following day if lower (across midnight).
Moreover, setting P.0422 and P.0423 to the same value defines a full day's range.
The controller also makes available, to the use of AND/OR logics, the internal status ST.081 -
"Start inhibited by clock/calendar
”.
The controller records any change of the inhibition status in the events log, if it is enabled with
bit 6 of the P.0441 parameter:
•
EVT.1221: start inhibition activated (from clock/calendar).
•
EVT.1222: start inhibition deactivated (from clock/calendar).