OCPP wallboxes and many other wallboxes have built-in electricity meters that the cFos Charging Manager can read and provide the consumed kilowatt hours for billing. With simpler wallboxes, you can install your own meter and connect it to the Charging Manager. The cFos Charging Manager prepares the billing data in a clear transaction log. The cFos Charging Manager speaks OCPP so that you can also transmit the billing data to an external billing backend.
OCPP wallboxes typically have an RFID reader for authentication. Many other models also have their own RFID reader. For wallboxes without an RFID reader, you can also connect the Charging Manager to an external (central) RFID card reader or control the charging release via our web interface or the app. Mixed operation of wallboxes with and without RFID readers is also possible.
The cFos Charging Manager uses load management to try to distribute the maximum connected load installed in the building as well as possible among the electric cars to be charged. In doing so, it can take into account the power of other consumers such as heat pumps, ventilation systems, etc.. It can also take into account the generation power of solar systems and, if necessary, read out the inverters themselves.
To record consumption (and generation), the cFos Charging Manager supports a variety of common meters and inverters. You can also define your own meters or transmit measured values via HTTP API.
You can assign different priorities to the individual wallboxes. The available charging power is first distributed to the wallboxes with higher priority and the remaining power is then distributed to the wallboxes with lower priority. This allows you to quickly recharge emergency vehicles, for example, while long-parked users are "refuelled" over the night.
For single-phase or two-phase charging vehicles, the cFos Charging Manager monitors the phase symmetry and, if necessary, regulates individual cars down in accordance with VDE-AR-N 4100.
If special requirements apply that deviate from the normal load management of the Charging Manager, you can configure charging rules per user and per wallbox that determine the charging power according to certain criteria. This allows you, for example, to configure certain times at which charging is to take place with certain current or to configure solar surplus charging.
In addition, the charging power can be changed depending on a switching input (or other conditions), for example if the energy supplier signals certain tariffs as a result.
It is recommended that the cFos Charging Manager is connected to the internet and accessible from "outside" for maintenance purposes.
| Manufacturer / Type | cFos eMobility / cFos Power Brain 11kW (22kW) or other manufacturer |
| Number of charging points | Depending on how many EVSEs you use - one charging point per EVSE |
| Number of identical charging devices | Depending on how many EVSEs you use |
| Max. grid demand power in kVA | 11 kVA or 22kVA |
| Max. grid feed-in power in kVA | 0 kVA |
| Control range of charging power kVA to kVA | 6 kVA - 22kVA |
| Active power controllable (yes / no) | Yes |
| Type of charge (AC or DC) | AC |
| Alternating current or three-phase current | AC for 1-phase connection, three-phase for 3-phase connection (controlled by the car's charging equipment) |
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