User's Manual
Table Of Contents
User Manual Introduction
1.3 vSECC at a Glance
The vSECC is a Supply Equipment Communication Controller (SECC) designed to be used
in smart DC charging applications. AC charging will follow at a later release. The vSECC
is responsible for the communication between an Electric Vehicle (EV), a Charging Station
Management System (CSMS) and the power electronics (PE). It is designed for handling
up to two CCS Type 2 DC charging points in parallel. In a later release it will be possible to
use a CHAdeMO or GB/T connector as the second charging point or CCS Type 1 and AC
connectors. All the future options will be available via a pure software update. The large
number of practical interfaces makes the vSECC a widely applicable controller for the rapid
implementation of intelligent charging stations. A top-level connection scheme is shown in
Figure 1.
Figure 1: vSECC connection scheme
The communication to the EV is established by Control Pilot (CP) basic signaling (IEC
61851) and Power Line Communication (PLC) for DC charging according to DIN 70121
and ISO 15118. The identification at the charging station is possible with External Identifi-
cation Means (EIM) and Autocharge. Plug and Charge will be released at a later stage and
can optionally be upgraded with a software update. For the communication to the backend
e.g. for load management, vSECC requires an Open Charge Point Protocol (OCPP) 2.0.1
compliant CSMS, such as Vector’s vCharM. The vSECC is designed to communicate with
the power electronics over ethernet using the Power Electronics Protocol (PEP) which is
specified by Vector and will be delivered along the controller.
The hardware overview shown in Figure 2 in chapter 2.2 includes all connectors available
with the fully populated vSECC. The units provided with this vSECC 1.0 are partly populated,
so some connectors may be missing or are rendered useless because the corresponding
circuits are not in place. With the current version of the vSECC, the following connectors
can be used:
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