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Description
a second EV is connected to the EVSE, the second session can start only if the
first charge session requests less than half of the power available to the station. If
the first charge session requests more, the second EV must wait until the charge
session can start. When the second charge session starts, each EV will receive up to
half of the maximum power available to the EVSE. As soon as one of the two charge
sessions ends, the EVSE can charge the other EV up to the maximum amount of
power available to the EVSE. Note that not all EVs are capable of increasing the
charging speed when the EVSE can deliver more power.
3.8.4
Dynamic power allocation 'Fair Share'
When the EVSE is configured for Fair Share power allocation, it can serve two EVs at
a time with DC fast charging.
In this configuration the EV charging power can reach up to the maximum power
available to the EVSE, up to the rated power output of the station. Effectively
the maximum power output can be less than the rated power output because of
power constraints. For example, the power output can be permanently limited due
to site current or power constraints, or temporarily limited by power management
systems.
The EVSE can do two DC charge session at a time. When one EV is connected to
the EVSE, it will receive up to the maximum power available to the EVSE. When a
second EV is connected to the EVSE, the second session will start and each EV will
receive up half of the maximum power available to the EVSE. The end of one of the
charging sessions will not change the maximum amount of power delivered to the
other session.
3.9
External residual-current device
The manufacturer does not supply an external residual-current device. If an external
residual-current device is required because of local rules, this section helps you to
select the correct device.
34
Note: EV charging with the use of the CCS standard can 'fall asleep' if the
EVSE does not start the session within few minutes. This is a common
issue. It is recommended to connect a second EV only shortly before the
first charge session ends.
1
0 - 50%
50 - 100%
51 - 99%
50%
Note: In a future software update it will be possible to allocate the
maximum amount of power to the ongoing charge session after the
other session ends. Note that not all EVs are capable of increasing the
charging speed when the EVSE can deliver more power.
2
0 - 50%
50 - 100%
51 - 99%
50%
9AKK108466A3703-EN | 001
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