The eVoomXT is designed for use in communal areas where the the user may be billed for
the electricity being used to charge their EV.
No diversity to be allowed.
Dedicated Distribution Board
If multiple charge points are fed from a dedicated landlords 3-phase distribution board
(with no other loads connected), the maximum current that an EV can draw automatically
adjusts depending upon the number of EV’s being charged.
To achieve this, the charge points must be ‘grouped’ together with one set to ‘Primary’ and
a maximum of 8 ‘Secondaries’ within the Config APP. The ‘Primary’ charge point must have
a cabled internet connection and the other charge points need to be set to ‘Secondary’ and
either have a cabled or Wi-Fi internet connection. The maximum current available on that
phase for the charge points that are within that group needs to be set on the ‘Primary’
charge point within the Config APP.
If these charge points are connected on single phase radials, they should be distributed
evenly across the phases and can deliver 7.4kW maximum. One charge point per phase
needs to be set to ‘Primary’ and the others to ‘Secondary’.
This principal applies for a 3-phase supply to each charge point, which can deliver a 22kW
maximum, and all these charge points need to be grouped. Only one charge point is set to
‘Primary’ with a maximum of 8 ‘Secondary’ chargers.
Distribution Board feeding EV’s and other loads
If charge points are connected to a distribution board that also feeds other loads, MID
energy meters are needed to monitor the current that the distribution board is drawing.
The charge points need to be ‘grouped’, configured into ‘Primary’ and ‘Secondary’ and have
internet connections as above. A RS485 data cable connects the MID energy meter and the
‘Primary’ charge point.
The maximum current available to the distibution board needs to be set on the ‘Primary’
charge point within the Config APP. The ‘Primary’ charge point will monitor current being
drawn against maximum current available, and manage the remaining available current
between EV’s connected to these charge points.
Loss of internet
If the internet connection fails, the charge points will deliver a maximum of 6A.
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