Load Shedding - VESTEL EVC04 Serie Installationsanleitung

2.7 - LOAD SHEDDING

This charging station supports load shedding functionality which provides immediate charging
current reduction in case of limited supply. Load shedding functionality can be used in any mode
including Standalone and OCPP conntected modes. Load shedding triggering signal is a dry con-
tact signal which must be provided externally and connected to the terminals 3 and 4 on the power
board as shown in figure 21.
When load shedding is activated by closing the contacts with an external device (Eg. ripple control
receivers etc.) charging current reduces down to 8A. When load shedding is deactivated by open-
ing the contacts charging continues with maximum available current. In normal use case when
there is no signal connected to the load shedding input (contacts open between terminal 3 and 4)
charging station supplies maximum available current.
You can connect dry contact (potential free) load shedding signal as shown in below. See figure-21
,table-14 and table-15.
Load Shedding Input State
IG v7.3.0 2021
Cable Terminal
3
4
Opened Contact
Closed Contact
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8
6 7
5
4
3
2
Figure-21
Input
Load Shedding Input +
Load shedding Input –
Table-14
Charge with max. available current
Table-15
1
3
Behaviour
Charge with 8A
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