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Digital Multi Control
3. Features
3.1. System connectivity
The control panel integrates with the inverter/charger system, consisting of a single or multiple Inverter/chargers configured as a
in stand-alone, parallel, and 2- or 3-phase system.
3.2. Power mode switch
The switch can be used to turn the inverter/charger system on, off or to charger-only mode.
3.3. LEDs
Eight LEDs replicate the inverter/charger LEDs.
Note that if the panel is connected to an inverter/charger model with only three LEDs, the full eight LED indications will be shown.
The LEDs auto-adjust to a lower brightness in low-light conditions.
3.4. Display
The 7-segment display primarily shows the AC input current and, if applicable, displays the AC input source or VE.Bus error
codes.
3.5. AC input control
The control panel's knob adjusts the AC input current limit. This is useful for mobile setups that connect to various AC sources
with different circuit breaker current ratings.
The adjustment range is synchronised with the inverter/charger system range. For instance, when connected to an inverter/
charger with 16A feed-through capacity, the AC input range remains within 16A. If linked to five of these units in parallel, it is
scaled up to 80A.
If an AC input range below the feed-through capacity of the inverter/charger is required, a custom upper threshold can be
configured. Refer to the
Upper AC input limit 1 to 4 [7]
chapter.
If needed, a fixed AC current can be specified in the inverter/charger settings, which then cannot be modified by the remote
panel. Refer to the
Current limit overruled by remote [7]
chapter.
3.6. Multiple AC inputs
The control panel automatically adapts to systems that have multiple AC inputs, as is the case with a Quattro or an extended
VE.Bus systems.
When switching between the different AC inputs, the display alternates between showing the AC current limit value and the input
name (AC2, AC3, etc.). For AC1, only the current limit will be shown.
The display remembers the last used AC current limit value for each input.
3.7. Generator support with external transfer switch
For a system with a MultiPlus together with an external transfer switch, the control panel can be configured to allow the AC
current to be changed while the system is connected to the grid but has a fixed AC current limit when connected to a generator.
The panel sends the current limit to the inverter/charger system as set via the knob. If the screw terminals on the panel's back are
short-circuited, a preset current limit is sent instead, and "GEN" is displayed.
To enable this, connect the screw connector terminals to an externally controlled switch, typically the auxiliary relay of an external
transfer switch. For setup, refer to the
Generator current limit [7]
chapter.
This feature is not relevant to a standard Quattro setup, which does not need an external transfer switch, and a fixed generator
AC input limit can be configured in the Quattro.
Page 3
Features
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