SENEC Wallbox pro s - Bus System in Line Wiring; Bus System with Central Wiring in Distributor; General Requirements; Installation of the Bus System

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English
loadmanagementsystemtothenextWallbox.
Pleasenote:
• Two conductors per bus line are used.
• Connectthebususingtwoseparatebuslines
eachbetweentheWallboxes(Lineinand
Lineout).
• Connectonlyonebuslineeachtotherst
(Lineout)andlast(Linein)devices.
Figs. IX and Xareexplainedbelow
Item Designation
1
FirstWallboxorexternalload
management on the bus
2 SecondWallboxonthebus
3 WallboxXonthebus
4 LastWallboxonthebus
2.3 Bus system with central wiring
indistributor
Centralwiring(Figs. XI, XII and XIII)differsasfollows:
• Four conductors per bus line are used.
• Onlytwoconductorseachareneededontherst
and last devices.
• Connectthescreensoftheindividualbuslinesin
the central distributor.
Figs. XII and XIIIareexplainedbelow
Item Designation
1
FirstWallboxorexternalload
management on the bus
2 SecondWallboxonthebus
3 WallboxXonthebus
4 LastWallboxonthebus
5 Centraldistributor
3. Local and external load management
Inlocalloadmanagementmode,severalWallboxes
arenetworkedviaanRS485bus.TheseWall-
boxessharetheavailabletotalcurrentequally.An
externalcontrolsystemisnotnecessaryinthiscase.
Activatingthismodedoesnotrequiremakingany
communicationsettings.Pleaseobservetheinfor-
mationonconguringandinstallingtheWallboxes.
Inexternalload/energymanagementmode,the
Wallboxesarenetworkedwithanexternalcontrol
system(e.g.HEMS–HomeEnergyManagement
System)viaanRS485bus.
Theexternalcontrolsystem(leader)managesthe
system and communicates with all connected
Wallboxes(followers).Theexternalcontrolsystem
controls the energy distribution. This approach
enables solar energy or an energy storage system
1. Introduction
TheSENEC.Wallboxprosisusedtocharge
plug-inhybridorelectricvehicles.SeveralSENEC.
Wallboxprosunitscanbeoperatedinanintegrated
network.Thisenablesthepowerdistributiontobe
monitoredforupto16Wallboxes.Intheinterestof
simplicity,the‘SENEC.Wallboxpros’willbeshort-
enedto‘Wallbox’below.Theintegratednetworkcan
beimplementedintheformoflocalorexternalload
management.
Fig. V showsanintegratednetworkcomprisingve
Wallboxesasanexample.Inanintegratednetwork
ofveWallboxes,theenergysupplyprovidesup
to32Aofcurrent.TheWallboxesarepre-setwith
I
max
16AandI
min
6A.Thetotalchargingcurrent
(32A)isdistributedequally.Ifavehiclehasended
its charging process but remains connected to the
Wallbox,thisvehiclewillcontinuetobeprovided
with6Aofcontinuouscurrent(fortheauxiliary
heater,forexample),insomecasesalternatelywith
other vehicles which have already been charged.
2. Installation of the bus system
Installation of the bus system is described below.
Thewiringisimplementedaslinewiring(see2.2)
orascentralwiring(see2.3).
2.1 General requirements
Fig. VIII: Illustration of line wiring and
Fig. XI: Central wiring
1. Shieldconnectionforthebuslines
2. Powersupplyconnection
3. Conductorsofthechargingcable
4. Connectionterminalsforbusconductors
5. Bus insulation
The following requirements must be met for any
typeofwiring:
• Alwaysuseascreenedbusline(e.g.CAT6a)for
the cabling.
• Donotexceedthetotalpermissibleeldbus
length of 500 m.
• PreparethebuscableandtheWallboxforinstal-
lation (Figs. VI and VII).
• Ensurethatthereissufcientdistancebetween
theconductors,thepowersupply(2),the
chargingcable(3)andthebuslines(5).
• Securelyconnectthebuslinestothedesignated
screen connections.
• Cutoffunusedindividualconductorsattheend
of the insulation.
2.2 Bus system in line wiring
Withlinewiring(Figs. VIII, IX and X), the bus
lineisrouteddirectlyfromaWallboxorexternal