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Hitachi ABB RVT Installation Und Betriebsanleitung Seite 55

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– the icon is highlighted
Note: if the external input signal IN2 (description in paragraph 2.4) is activated, all capacitor steps are switched off
and the Ext. prot. parameter drives the behavior of the alarm relay:
– Disconnection and alarm
– Disconnection only (no alarm)
After the event has disappeared, the RVT will restart its normal operation after a certain delay time. This delay time
depends on the type of events. RVT post alarm restarting procedure is described in detail in Appendix A4.
Note: when enabled, the external protection (Ext. Prot.) may be activated by applying an external signal through the
RVT digital input 2 (see paragraph 1.4).
4.3.1.4.2. Warnings
Warnings level are basically will be lower than protection levels. When a warning level is reached, following actions
will occur:
– the fan/warning relay is activated: the NO contact will close
– the icon
is highlighted
4.3.1.4.3. Temp protections
RVT provides 8 bank temperature protections by eight temperature probes. Each temperature probe protection level
can be set independently. When any one of the eight the temperature protection levels is reached.
all the capacitor steps are switched off
an alarm message appears on the display
the alarm relay is activated ( NO opens / NC closes )
the icons
and
STATUS
Approved
Figure 41 RVT warning settings
are highlighted
SECURITY LEVEL
Public
PO WER FACTO R CON TR O LL ER RV T
DOCUMENT ID
9AKK107045A9645
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