4.6.
DIGITAL OUTPUTS
4.7.
STATE LEDS
LABEL
LED PWR
(green)
LED ALM
(red)
LED alarm codes
PWR
ALM
state
nr. flashes
Fixed light
1
Fixed light
2
Fixed light
3
Flashing
4
Flashing
5
Flashing
6
Flashing
7
Flashing
8
Flashing
9
Fixed light
10
Fixed light
11
Fixed light
12
Fixed light
Fixed light
(1) Shutdown alarm: alarm state that blocks supply to the exciter field.
9638571A0_C
LABEL
R1
R2
R3
R4
R5
R6
STATE
Light off
Regular flashing, slow
Regular flashing, fast
Fixed light
Light off
Flashing light
Fixed light
ALARM DESCRIPTION
EEPROM error
(POE) IGBT overcurrent
Loss of Sensing (LOS)
Exciter field overcurrent protection
Exciter field overvoltage protection
Generator overcurrent protection
Generator undervoltage protection
Generator overvoltage protection
Diode failure - low level
Diode failure - high level
Digital inputs not assigned through D-Vo Dashboard
Auxiliary supply OFF - No auxiliary power supply
Watchdog
D-Vo Light – Marelli Motori
DESCRIPTION
Digital output #1
Digital output #2
Digital output #3
DESCRIPTION
D-Vo not powered.
D-Vo powered, not supplying power to the exciter.
D-Vo powered, supplying power to the exciter.
Presence of shutdown alarms.
No alarm.
Presence of an alarm; the ALM LED flashes
according to a repeated pattern of N flashes at
regular intervals and a skipped flash. The N
number of flashes indicates the alarm that has
arisen, according to the encoding listed in the table
below.
Along with the fixed light of the green PWR LED, it
indicates that the watchdog protection has tripped.
CRITICAL
ALARM
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
SHUTDOWN
(1)
ALARM
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
NO
YES
EN
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