7 Display and messages
32
7
Display and messages
2
3
4
5
6
7
8
Welcome to use
NTX 5000
GFCI
Alarm/fault
Normal
ESC
OK
1
1 Display
2 GFCI
3 Alarm/Fault
4 Normal
5 ESC
6 UP
7 DOWN
8 OK
7.1 LED indicators
There are four LEDs at the side of the display: the
first LED from the top (GFCI) indicates a ground
fault, the second LED (Fault/Alarm) indicates a fault
or alarm condition, the third LED (Normal) indicates
proper operation of the inverter.
· The red “GFCI” (ground fault) LED indicates that
inverter is detecting a ground fault in the DC
side of the photovoltaic system. When this kind
of fault is detected, the red LED keeps flashing
and the inverter immediately disconnects from
the grid and the corresponding fault indication
appears on the display.
· The double color “Fault/Alarm” LED indicates
that the inverter has detected a fault or alarm
condition. If the alarm condition detected, the
yellow LED keeps flashing until the inverter go to
the normal state. If the fault condition detected,
the red LED keeps flashing until the inverter go
to the normal state. When the Fault/Alarm state
appeared, a Fault/Alarm description will appear
on the display.
· The green “Normal” LED indicates that the NTX
inverter is operating correctly. This LED stays on
steady upon start-up, during the system check
routine. If the system is all right, the system will
go to the running state. In this condition, the
LED keeps flashing.
LED indicator combinations and their meaning are
listed in the following table.
Key:
LED on
LED flashing
LED off
LEDs
Status
Operational
Status
Remarks
1
red:
red:
green:
Start-up
The three LEDs will
flash 5 times.
2
red:
red:
green:
Waiting
or
Checking
3
red:
red:
green:
Running
4
red:
red:
green:
Fault
5
red:
red:
green:
GFCI Fault
6
red:
red:
green:
Alarm
