Opening The - ABB UNO-DM-TL-PLUS-US Product Manual

O
pening the front cover
WARNING! ELECTRIC SHOCK HAZARD! Hazardous voltages may
be present inside the inverter. The access to the internal zones of
the inverter must be carried out after a minimum waiting time of 5
minutes since the inverter was disconnected from the grid and from
the photovoltaic generator.
Do not open the inverter in the case of rain, snow or a high level of humidity (>95%)
Caution! It's necessary to hold the front cover during the screws removal to avoid his falling
(the front covers aren't secured to the inverter's chassis).
The main connections are made on the wiring box of the inverter by re-
moving the 4 screws, using a TORX T20 key, of the front cover
If required to install the accessory boards and make the necessary con-
nections, unscrew the 8 screws, using a TORX T20 key, and open the
front cover
of the inverter compartment
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special attention since additional screws are not supplied.
8b
1b
04
3b
5b
1a
05
3a
- 51 -
; while removing the screws, pay
6b
4b
2b
7b
4a
2a
5 - Installation
.
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