Hitachi ABB RVT Installation Und Betriebsanleitung Seite 54

4.3.1.4. Protections and warnings
Start screen  Settings  Manual settings  prot&warn.
RVT will activate certain actions when some system values exceeding certain thresholds. Protection level is harsher
than warning ones.
4.3.1.4.1. Protections
Protection levels: To set the levels of protection against under-voltage, over-voltage, prohibitive harmonics, max.
Irms current protection; it also enables an external protection initiated by the opto-isolated input 2. The alarm relay
provides one NO and one NC contact.
Once a protection level is reached, the following actions occur:
– all the capacitor steps are switched off
– an alarm message appears on the display
– the alarm relay is activated ( NO opens / NC closes )
STATUS
Approved
Figure 39 RVT protections and warning settings
Figure 40 RVT protection settings
SECURITY LEVEL
Public
PO WER FACTO R CON TR O LL ER RV T
DOCUMENT ID
9AKK107045A9645
REV. LANG. PAGE
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