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Description of LED panel
Description of the LED function
PVS-175
POWER
Indicates that the inverter is functioning correctly.
When the unit is commissioned, while the grid is checked, this LED blinks. If a valid grid
voltage is detected, the LED remains continuously lit, as long as there is sufficient sunlight
to activate the unit. Otherwise, the LED will continue to blink until the sunlight is sufficient
for activation.
ALARM
Indicates that the inverter has detected an anomaly. This type of problem is highlighted in
the Web User Interface and ABB Installer for Solar Inverters APP.
GFI
The “GFI” (ground fault) LED indicates that the inverter has detected a ground fault in the
DC side photovoltaic generator. When this fault is detected, the inverter immediately dis-
connects from the grid.
WLAN/LAN
Indicates the status of the Wireless or ETHERNET communication lines.
All possible LED activation combinations are shown in the following table. In particular, each LED could behave in one of the follow-
ing ways:
= LED on
= LED flashing slow (2 seconds on / 2 seconds off)
= LED flashing fast (0.2 seconds on / 0.2 seconds off)
= LED off
= Any one of the conditions described above
The following table shows all the possible activation combinations of “Power” “Alarm” and “GFI” LEDs on the LED panel
(08)
ac-
cording to the operating status of the inverter.
LED status
Operating state
green:
yellow:
red:
Firmware programming
The inverter firmware is being programmed (never turn off the inverter during this phase).
green:
yellow:
red:
Night mode (inverter automatically switches off)
The inverter is in night time switch-off mode (input voltage less than 70% of the set start-up voltage and AC grid
is missing).
green:
yellow:
red:
Inverter initialization / Waiting Sun
This is a transitional state due to verification of the operating conditions. During this stage the inverter checks
that the conditions for connecting to the grid are met.
green:
yellow:
red:
The inverter is connected and is feeding power into the grid
Normal operation. During this stage, the inverter automatically tracks and analyses the photovoltaic generator’s
maximum power point (MPP).
green:
yellow:
red:
Missing grid
Indicates lack of grid voltage. This condition does not allow the inverter to connect to the grid.
green:
yellow:
red:
Warning indication: (W message codes) or Error: (E message codes)
- Indicates that the inverter control system has detected a warning (W) or error (E). It is possible to identify the
type of problem generated in the dedicated section of integrated Web User Interface (“Inverter Log” section).
green:
yellow:
red:
Temperature protection trip
Indicates that the trip relating to internal temperatures (insufficient or excessive temperature) may have been ac-
tivated.