MarelliMotori D-Vo Light Manuel D'utilisation page 28

Exciter field overcurrent
Generator overvoltage
9638571A0_C
D-Vo exits the active alarm state if and only if the voltage drops below the set
threshold for a time greater than T
The function can be enabled/disabled.
When the measured exciter field current, I
threshold, I , for a settable time delay, T
EXC_OC
switches to active state.
I
EXC_OC
The switching of the protection to active state is signalled by a visual warning in
D-Vo Dashboard, and can be optionally associated with one of the three
programmable output relays (which assumes the same state as the protection).
D-Vo exits the active alarm state if and only if the current drops below the set
threshold for a time greater than T
The function can be enabled/disabled.
When the measured generator field voltage, V
value threshold, V
GEN_OV
protection switches to active state.
V
GEN_OV
The switching of the protection to active state is signalled by a visual warning in
D-Vo Dashboard, and can be optionally associated with one of the three
programmable output relays (which assumes the same state as the protection).
D-Vo exits the active alarm state if and only if the voltage drops below the set
threshold for a time greater than T
and an alarm RESET is performed.
D
, increases beyond a settable value
EXC
, the field overcurrent protection
D
Exciter field overcurrent
IEXC
and an alarm RESET is performed.
D
GEN
, for a settable time delay, T
Generator overvoltage
VGEN
and an alarm RESET is performed.
D
D-Vo Light – Marelli Motori
T
D
time
, increases beyond a settable
, the generator overvoltage
D
T
D
time
EN 28