Sices HS 315, Техническое руководство

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122 Technical Handbook
52.8 V .
G band: high
xxx V .
If the voltage is in the “B”, “D” or “F” bands, previous status is maintained (hysteresis). For
example, if the voltage was in the “E” band and now it is in “D” band, it is considered however
“In tolerance”. On the contrary, if voltage was in the “C” band and now is in “D” band, it is
co
nsidered “Low”.
To diagnose the auxiliary source
“global” status, the following algorithms are used, shown in
their computing order:
•
In case the status of all existing voltages (AC and/or DC) and the frequency (if
available)
are “Absent”, also the global status is “Absent”.
•
In case the status of all existing voltages (AC and/or DC) and the frequency (if
available)
is “In tolerance”, also the global status is “In tolerance”.
•
In case the status of at least one voltage (AC or DC) or the frequency (if available) is
“High”, also the global status is “High”.
•
In case none of the previous conditions occurs, global
status is “Low”.
The status of the auxiliary source can also be detected by a digital input configured with the
function DIF.3101
(“External sensor for auxiliary source”). If the input is logically active, the
auxiliary source is “In tolerance”. If the input is logically not active, the status is “Absent”.
If the digital input is active, the auxiliary source is considered “In tolerance”, even if the
measure of voltages (AC/DC) is enabled and if said measure indicates that the auxiliary
source is out of tolerance.
For general management purposes, auxiliary source can be described in three steps:
a) Steady out of tolerance: the voltages status (AC/DC) and/or the frequency status (if
available) must be continuously
other than “In tolerance” for P.0206 seconds. The
“AUX DC SOURCE” lamp is off if voltages and frequency are in “Absent” status,
otherwise it blinks.
b) Steady within tolerance: the voltages status (AC/DC) and the frequency status must
be “within tolerance” for at least P.0205 seconds (immediately in MAN). The “AUX DC
SOURCE
” lamp is steady on.
c)
Transient: shifting from status “a” to status “b” or vice versa. The “AUX DC SOURCE”
lamp blinks.
The controller records any change of the auxiliary source status in the events log, if it is
enabled with bit 1 of the P.0441 parameter:
•
EVT.1010: auxiliary source is missing.
•
EVT.1011: auxiliary source is present (out of thresholds).
•
EVT.1012: auxiliary source is present (in thresholds).
The following feature is also available for the configuration of the digital outputs, related to the
auxiliary source status:
•
DOF.3033 -
“Auxiliary source in tolerance”. The controller activates this output when
the voltages (AC/DC) and the frequency (if available) are in tolerance from the time
configured.