Specifications On Operation Of The Leds; Led Insulation Fault; Comm Status, Rssi Leds Behavior - ABB UNO-DM-TL-PLUS-US Product Manual

S
pecifications on operation of the LEDs
In the case of malfunction it is extremely dangerous to intervene personally to try and eliminate
the defect. The instructions below must be followed scrupulously; if you do not have the
necessary experience and training to intervene safely, please contact a specialist.
L
ED insulation fault
You are advised to have the plant inspected by the installer or a specialist should this
malfunction occur repeatedly.
C
OMM Status, RSSI LEDs behavior
LED
COMM STATUS
(MULTICOLOR)
RSSI (MULTICOLOR)
In correspondence to each status of the inverter indicated by the constant
or intermittent lighting of the specific LED, the display
a message identifying the operation which is being carried out or the
defect/anomaly recorded (see specific chapter).
Interventions after warning of insulation fault
When the GFI LED comes on, first try to reset the warning by pressing
the multi-function ESC button on the keyboard
Should the inverter reconnect normally to the grid, the fault was due to
temporary phenomena.
Should the inverter not reconnect to the grid, isolate it on both the AC and
DC sides (by using the disconnect switches), then contact the installer or
authorised center to repair the fault in the photovoltaic generator.
The following table shows all the possible status of "COMM Status" and
"RSSI" LEDs on the LED panel
the wireless board.
Description
Operation status of wireless communication line:
Blink Red: Communication error (no communication available)
Green: Communication OK
Communication type and quality of the wireless communication signal (for
"Station Mode"):
Blink Blue: Wireless board is working in Access Point mode (AP Mode)
OFF: No signal
Blink Red: Low signal strenght
Blink Yellow: Medium signal strenght
Blink Green: High signal strenght
- 87 -
07
.
08
according to the operating status of
06
7 - Operation
also shows