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WARNING: Ensure that the unit supply is isolated upstream during ESI-S installation. If
the system has been connected to the supply before, wait for 25 minutes after
disconnecting the mains power in order to discharge the capacitors. Always verify by
measurement that the capacitors have discharged. DC capacitors may be charged to
more than 800 Vdc.
The DC capacitors of ESI-S units are automatically charged once the auxiliary circuit is
energized, regardless of whether the inverter is switched off or on. Do not touch the
DC capacitor link when the auxiliary fuse box is closed.
The inverter control board carries dangerous voltages and shall not be touched once
the auxiliary circuit is energized, regardless of whether the unit is switched off or on.
Once the auxiliary circuit is opened, high voltage levels can still be present on the
control board. Respect a delay of 25 minutes after disconnecting the mains power
before touching the control board.
6.2
Instructions for connecting the ESI-Manager to a inverter system
ESI-S master units are by default equipped with the ESI-Manager user interface. In some
cases however it may be needed to remove and reconnect the ESI-Manager to the control
board of the ESI-S.
In order to successfully connect the ESI-Manager to an ESI-S inverter unit, it suffices to
plug the male connector attached to the ESI-Manager into the corresponding female
connector attached to the inverter hardware. This is illustrated in
Figure 28: Connection of the ESI-Manager user interface to the ESI-S hardware
The female connector associated with the ESI-S hardware is situated at the top right
side of the control board and becomes visible after removing/lifting slightly the inverter
protective cover.
Note that the connector incorporates the following signals:
-
The 230 V power supply connection
-
The internal CAN bus connection
Manual Energy Storage Inverter ESI-S ç Electrical design and installation 39
Figure
28.
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