ABB UNO-DM-4.0-TL-PLUS User Manual

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000697BG
7 - Operation
Specifications on operation of the LEDs
In correspondence to each status of the inverter indicated by the constant
or intermittent lighting of the specic LED, the display
07
also shows
a message identifying the operation which is being carried out or the
defect/anomaly recorded (see specic chapter).
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.
LED insulation fault
Interventions after warning of insulation fault
When the GFI LED comes on, rst try to reset the warning by pressing
the multi-function ESC button on the keyboard
08
.
Should the inverter reconnect normally to the grid, the fault was due to
temporary phenomena.
You are advised to have the plant inspected by the installer or a specialist should this
malfunction occur repeatedly.
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 centre to repair the fault in the photovoltaic generator.
COMM, WLAN LEDs behaviour
The following table shows all the possible status of “COMM” and “WLAN”
LEDs on the LED panel
06
according to the operating status of the
wireless board.
LED Description
COMM
(MULTICOLOR)
Operation status of wireless communication line:
Blink Red: Communication error (no communication available)
Green: Communication OK
WLAN
(MULTICOLOR)
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

ABB UNO-DM-4.0-TL-PLUS Specifications

General

Brand	ABB
Model	UNO-DM-4.0-TL-PLUS
Category	Inverter
Language	English

Summary

Safety and Accident Prevention

Safety Information and Instructions

Key safety instructions for inverter installation and operation. Essential for preventing injury and equipment damage.

Installation and Maintenance Safety

General safety guidelines for installing and maintaining the inverter, including environmental considerations.

Electrical and Thermal Safety

Critical safety instructions regarding electrical hazards and thermal considerations during operation and maintenance.

Characteristics

Characteristics and Technical Data

Power Limitation (Power Derating)

Safety Devices

Installation

Environmental Checks

Installation Position

Wall Mounting

Step-by-step instructions for securely mounting the inverter onto a wall using the provided bracket.

Input Connection to PV Generator (DC Side)

Detailed instructions for connecting the photovoltaic generator's DC output to the inverter's input.

Distribution Grid Output Connection (AC Side)

Procedures for connecting the inverter's AC output to the distribution grid, including cable sizing.

Installation of the External Protective Grounding Cable

Instructions for installing the essential external protective grounding cable for safety.

Instruments

User Interface

Description of Keyboard and LED Panel

Operation

Commissioning (Via Web User Interface)

Step-by-step guide for commissioning the inverter using the web user interface.

Commissioning (Using the Inverter Display)

Procedure for commissioning the inverter directly via its display and buttons.

Power, Alarm, GFI LEDs Behaviour

Web User Interface Menu Structure

SETUP Section

NETWORK Section

Maintenance

Inverter Total De-energization and Safe Access

Essential procedure for safely de-energizing the inverter before performing any work.

Clothing and Protection of Personnel

Safety Equipment and Tools

Routine Maintenance

Troubleshooting

Guidance for identifying and resolving common problems, especially with web interface and wireless communication.

Alarm Messages of the Inverter

A comprehensive list of inverter alarms, their causes, and recommended solutions.

Power Limitation Messages

Attachments

Inverter Network Configuration