SENEC Wallbox pro s - Bus Topology; Check-List for External Load Management; Check-List for Local Load Management; Configuration of the Wallboxes

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(SENEC.Home)tobeincorporatedwhenanelectric
vehicleisbeingcharged,forexample.
Pleaseobservethepointsbelowfortrouble-free
installation and commissioning.
3.1 Prerequisites
• AtleasttwoWallboxeswith local load
management.
• AtleastoneWallboxandanexternalcontrol
systemwithexternalloadmanagement.
• Upto16Wallboxeswithlocalloadmanagement.
• UptofourWallboxeswithconnectiontoaSENEC
storagesystemwithexternalloadmanagement.
• Onehybrid/electricvehicleperWallbox.
• Energysupplyatleast6AperWallbox(incaseof
overloading, ongoing charging processes will be
completedrst).
i
Toavoidsingle-phaseloadpeaks,connectthe
devices with an alternating phase sequence.
• FirstWallbox:L1,L2,L3.
• SecondWallbox:L2,L3,L1.
• ThirdWallbox:L3,L1,L2.
• FourthWallbox:L1,L2,L3again,etc.
3.2 Bus topology
Prerequisites:
• Bussystem:RS485eldbus
• Protocol:ModbusRTU
• The leader distributes the total current in the
system.
• Achargingcurrent(default:6A)isconguredfor
eachWallbox.Settherequiredchargingcurrent.
• ThefollowerWallboxesreverttostandbystate
when not in use.
• CommunicationbetweenthefollowerWallbox
andleaderWallboxisrequiredinordertostart
the charging process.
Local load management:
• OneWallboxastheleaderandatleastoneorup
to15Wallboxesasfollowers.
• ThephysicalpositionoftheWallbox(leader)is
freely selectable.
External load management:
• Externalcontrolsystem(e.g.HEMS)whichis
conguredastheleaderandatleastoneorupto
16Wallboxesasfollowers.
3.3 Check-list for local load
management
• Wirethepowersupplyandthebussystemsoas
toavoidsingle-phaseloadpeaks.
• SelecttheleaderWallbox.
• SetthenumberoffollowerWallboxesinthe
leaderWallbox.
• Setthemaximumsystemcurrentintheleader
Wallbox.
• Setthemaximumandminimumindividual
chargingcurrentsineachWallbox.
• SetthebusIDineachfollowerWallbox.
• Activatethebusterminatingresistorintherst
andlastWallboxes.
• Conguretheoptionalblockingfunctioninthe
leaderWallbox.
3.4 Check-list for external load
management
• Wirethepowersupplyandthebussystemsoas
toavoidsingle-phaseloadpeaks.
• Conguretheexternalcontrolsystem(following
themanufacturer’sinstructions).
• SeteachWallboxasafollowerWallbox.
• SetthebusIDineachWallbox.
• Setthemaximumandminimumindividual
chargingcurrentsineachWallbox.
• Activatethebusterminatingresistorinthe
externalcontrolsystemandthelastWallbox.
4. Conguration of the Wallboxes
TheindividualWallboxesmustbepre-congured
using rotary switches and micro switches to operate
theintegratednetworkofWallboxes(Fig. XIV).All
rotary switches and micro switches are initially set
toOFF.Thecongurationdiffersinsomecases,
dependingonthelocalorexternalloadmanage-
ment mode.
Mode-independent switch functions:
S1:rotaryswitchS1isusedtosetthemaximum
chargingcurrentof6Ato16AperWallbox
S3:congurationofminimumchargingcurrent
S6:busterminatingresistorOn/Off
Switch functions in local load management mode:
S2:settingofmaximumsystemcurrent(onlyin
leaderWallbox)
S4:inleaderWallbox:settingofthenumberof
followers
S4:InfollowerWallbox:settingoftherespective
busID
S5:settingofleaderorfollower,frontillumination
andblocking