maxem Maxem 5 User manual

SMART CHARGING CONTROLLER
English -Installation manual
Maxem 5

2
Safety warnings
• Onlytobeinstalledbyacertiedelectrician.
• Completelyfollowtheinstructionsgiven.
• Use this device only for the purpose it is designed for, as described in this
manual.
• Maxemworksonlyafteronlinecommissioningbytheinstaller.
• FailuretofollowtheabovewarningscanleadtoanincorrectMaxeminstallation.
This can lead to over current on the grid connection, damage to installations
andchargingstations,electricshocksorre.
Cohere is not responsible for the installation of Maxem and for any damage arising from not
following the installation manual correctly. Nor for damage resulting from typographical
errorsormisinterpretationsoftextorimages.
Tip
Warning
Safety Information
Symbols in this document
Liability
Installation manual for Maxem Home
Publication date: 1 April 2018
See for the most latest information on
www.maxem.io

3
EN
All information in this document is the copyright and intellectual property of Cohere Energy
SolutionsB.V.Materialinthisdocumentmaynotbemodied,reproducedorcopied,inpart
orinwhole,withouttheexplicitwrittenconsentofCohereEnergySolutionsB.V.Additional
informationisavailableuponrequest.
MaxemisaregisteredtrademarkofCohereEnergySolutionsB.V.
SMART CHARGING CONTROLLER
CHARGE SMARTER
©2018COHEREENERGYSOLUTIONSB.V.
Product symbols statements
Installandusethisproductonlyaftercarefulreadingofthemanual.
Thisproductisdoubleinsulated.
Indooruseonly.
Productcontainselectronics.Donotthrowitinthehouseholdwaste.
ThisproductisdesignedforovervoltagecategoryIII.
This product meets all the requirements set by the EU for
productsafety.
English

4
Index
What is Maxem? 29
Productspecications30
What do I need for the installation? 32
Installation steps
01 - Mounting of Maxem 34
02 - Connecting current transformers
Option2.1-Connecting current transformers on the grid connection 36
Option2.2-Connecting current transformers on the solar panels 36
03-ConnectingMIDkWh-meters     38
04 - Connecting charging station
Option4.1-ConnectingTesla Wall Connector 40
Option4.2-ConnectingKEBAcharging station 42
Option4.3-ConnectingICU charging station 44
05 - Commissioning by installer 45
ECDeclarationofConformity      70

5
EN
What is Maxem?
From the meter cabinet, Maxem measures the energy use in the house and the energy
generation of solar panels. Based on this information, it manages the charging station,
batteryorheatpumpsmartly.Thus,ithelpstheusertomakeeasierandcheaperuseof
sustainableenergy.
Maxem intelligently manages the charging
speed based on home energy use and solar
production, preventing over current on the
grid connection.
Charging station
Today you can monitor the energy use of
your heat pump. In the near future Maxem
manages the power of your heat pump or
e-boiler in order to store solar energy in hot
water.
Heat pump or e-boiler
Maxem optimizes power consumption on
the main grid connection to prevent over
current. This makes it unnecessary to get an
expensive grid upgrade.
Grid
Maxem measures the energy production of
your solar panels. Soon available: let
Maxem manage your charger on the basis
of solar production. This way you use 100%
of your own solar energy.
Solar panels
Battery
Future vision: through intelligent
measuring and management Maxem
makes sure that all solar power is stored in
the home battery. This way you use all your
solar energy locally.

6
01-Voorbereidingenvooraf
Content of the box
MIDkWh-meterextension
Maxem including mounting plate 6x split core
current transformer
RS485 cable
Networkcable
Power cable
4x Screws 3x20 1x Phoenix connector
Productspecications
2x Tie-wrap
SET
OK
1 2 3
MIDkWh-meter
DenitionsLEDindicators
On/o
Internet
Data
connection
Current
measurement
Charging station
1x Phoenix connector

7
EN
P1
port
Ethernet port
to charging station
Ethernet port to Internet
Router
230Vpower
supply
Current transformers
solar panels
Multi functional
USB port
Current transformers
grid connection
RS485
port 1
RS485
port 2
Denitionsinput/outputports
Specications
Dimensions 184mm(L)x167mm(W)x55mm(H)
Weight 700g
Working temperature 10°C to 35°C
Storage temperature 0°C to 60°C
Maximal humidity 80%
Protection class II (double insulated)
Seal IP20
Working height 0 to 2,000 m
EMC EN61326-1(2013),EN61000-3-2,61000-3-3
Safety EN61010-1(2010),EN61010-2-30(2010)
Immunity EN61326-1(2013)
Overvoltage category 300V/CATIII
Input power 110-240V.50/60Hz.Maximum2,75W
Power coils Up to 50A
REVISION
TITLE:
A4
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A A
B B
C C
D D
E E
F F
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DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4

8
• Acorrectcircuitbreakerorearthleakagecircuitbreakerwithproperfusingvalue. See
p.33todeterminefusing.
• Schukosocketsfor230VpowersupplyMaxem(ifnotalreadyavailable).
• UTP(CAT5orCAT6)datacableforconnectingchargingstationtoMaxem.
• RJ45(8P8C)connectorsforethernetconnectedchargingstations(ICU/Keba).
• CableendsleevesforUTPcores(onlyforTeslaWallConnector).
• Internetconnectedsmartphone,tabletorcomputer.
Required materials
01-Voorbereidingenvooraf
What do I need for the installation?
Wired Internet access
With Maxem compatible charging stations
Compatibility may change over time. See the website www.maxem.io for the current
overview of compatible charging stations.
Tesla Wall Connector ICUEVeminiKEBAP20/P30 ICUEVe
The following network settings are required. Don’t be alarmed by the jargon, these are
normalnetworksettings.Incorporatenetworkssomeoptionscanbeblocked:
• MaxemhastoreceiveanIPaddressviaDHCP.
• This IP address may not be in the following range: 10.50.0.0/16, 10.51.0.0/16, and
192.168.25.1/24.
• Incaseofarewalloutgoingtrachastobeallowedonthefollowingports:80,443,
1194t/m1200and9090.

9
EN
Fusing charging station
Maxemisacontrolsystemthatregulatestheloadofthechargingstation.Maxemmakes
surethatthereislessloadonthechargingstationwhenthereismoreloadonthehouse.
This reduces the diversity factor. The charging station can therefore be fused to a value
higherthannormal,butnothigherthanthethresholdvalueofthemaingridconnection.
FormoreinformationonthissubjectinrelationtotheNEN1010,seetheMaxemwebsite.
Power supply Charging station capacity Maximal fusing, charging station
3-phase 25A 3-phase 32A 3-phase 25A
3-phase 25A 3-phase 16A 3-phase 16A
3-phase 35A 3-phase 32A 3-phase 32A
1-phase 25A 1-phase 32A 1-phase 25A
1-phase 40A 1-phase 32A 1-phase 32A
Current transformers of kWh-meters
Maxem is standard supplied with current transformers with which the main grid connection
andsolarproductioncanbemeasured.Formoreaccuratemeasurementsitisalsopossible
to use MID certied kWh-meters. The kWh-meters Maxem works with can be ordered
separately.
There are situations when a kWh-meter is always required:
• Measurement of a Tesla Wall Connector
• Measurement of a heat pump

10
01-Voorbereidingenvooraf
01 - Mounting of Maxem
Mount Maxem on a clean, moisture-free wall. Use the supplied mounting plate and
screwsforthis.TakeintoaccountsucientspacearoundtheMaxem.
Wiring at the bottom
70mm
20mm
20mm
20mm
A.

11
EN
Connect Maxem with the supplied network cable to the modem or router connected
totheInternet.
Maxem has to be connected to a 230V wall socket. Prepare this already but do not
powerMaxemyet.
C.
B.
230Vconnection
REVISION
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WEIGHT:
A A
B B
C C
D D
E E
F F
4
4
3
3
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2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4
Ethernet port to
Internet Router
REVISION
TITLE:
A4
DWG NO.
SCALE:1:2 SHEET 1 OF 2
WEIGHT:
A A
B B
C C
D D
E E
F F
4
4
3
3
2
2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4

12
02 - Connecting current transformers
Option2.2-ConnectingCT’sonsolarpanels
Click the supplied current transformer around the L1 phase wire of the main power
supply, after the main circuit breaker/main switch, such that the entire grid connection
ismeasured(seeg.1)
Connectthecurrenttransformercabletoport1ofMaxem.
Turnothemaincircuitbreakerofswitchofthefusebox.Andopenthefusebox.
RepeatthesestepsforL2andL3incaseofa3-phasegridconnection.Phase2is
connectedonport2.Phase3isconnectedonport3.
Makesurethecurrenttransformersareconnectedintherightdirection.
A.
B.
D.
E.
Option2.1-ConnectingCT’sonthegridconnection
Click the supplied current transformer around the L1 wire of the circuit breaker
tothesolarinverter(seeg.2).Nootherloadsmaybeconnectedtothiscircuit
breaker.
Turnothemainpowersupplyterminalofthefusebox.A.
B.
C.
Connect the current transformer to the corresponding circuit breaker in the fuse
box.Nootherloadsmaybeconnectedtothiscircuitbreaker.
Makesurethecurrenttransformersareconnectedintherightdirection.D.
B.
Connect the current transformer to port 4 of Maxem.  Repeat these steps for
L2 and L3; connect L2 to port 5, connect L3 to port 6. Make sure each current
transformerofeachphaseisconnectedtotheassociatedportonMaxem.
C.
Connect the current transformer to the corresponding port on Maxem. For
instance;.port6,whensolarisconnectedtoL3onthegridconnection.Orport
5forL2.
C.
For 3-phase solar energy (see g. 2)
For 1-phase solar energy on a sub-panel (see g. 3)

13
EN
Home
Grid / Solar
Home
Grid / Solar
Home
Grid / Solar
Home
Grid / Solar
Home
Grid / Solar
Home
Grid / Solar Home
Grid / Solar
REVISION
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A A
B B
C C
D D
E E
F F
4
4
3
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2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4
L1 L2 L3
Grid / Solar
Home
Grid / Solar
Home
REVISION
TITLE:
A4
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A A
B B
C C
D D
E E
F F
4
4
3
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2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4
L1 L2 L3
1.
Main circuit breaker/
main switch
Gridconnection
meter
Circuit breakers fuse
box
3.
Circuit breaker solar
inverter on sub-panel
2.
Circuit breaker solar
inverter
Connection current transformers grid connection Connection current transformers solar panels

14
03-ConnectingMIDkWh-meter
Maxemcanmeasuredierentelementsthroughan externalMIDcertiedkWh-meter.In
orderfortheautocongurationtofunctionproperly,thekWh-metermustbesettotheright
address.Thisisdoneasfollows:
Node/device Address
Solar #1 001
Solar #2 011
Charging station #1 002
Charging station #2 012
Heat pump #1 004
Heat pump #2 014
Locationofthe‘addressing’functioninthemenu
SET
OK
1 2 3
Addressing multiple elements
Numberofdevices
Devicetype
Standard addressing kWh-meter
Node/device Address
Gridconnection 100
Solar 001
Charging station 002
Heat pump 004
Addressing
ConguringanMIDkWh-meter
Holdthebuttonfor2sec.toenterthemenu,ortogoupinthemenu.
Scrolldownthroughmenuoradjustsettingvalue.
Presstogetintoamenuitemoracceptanadjustment.
Presstoadjustasetting.
NavigationthroughthemenuoftheABBB23/B24kWh-meter
If you see this icon in the display of the kWh-meter, there is an active
dataconnectionwithMaxem.

15
EN
PlacethekWh-meteronaDIN-railinthefusebox.
ConnectinganMIDkWh-meter
Conn ec tt heg re enPh oeni xconn ec tortop or tR S1o nMa xem.
Connect behind the main circuit breaker so that it measures the output of the
completegridconnection.NoticethatthiskWh-meterisfedfromthetopend.
SettheaddressofthekWh-metertocorrespondingnode.
SET
OK
1 2 3
Connection RS485 cable
on kWh-meter
A.
B.
D.
E.
RS1 port for
MIDkWh-meter
REVISION
TITLE:
A4
DWG NO.
SCALE:1:2 SHEET 1 OF 2
WEIGHT:
A A
B B
C C
D D
E E
F F
4
4
3
3
2
2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4
Connection RS485 cable
on Phoenix connector
C B A
Connect a 1-phase solar installation which supplies L3 of the main grid connection
also to L3 of the kWh-meter. The same goes for L2.
Connect the RS485 cable to the kWh-
meter and the supplied green Phoenix
connector as follows:
kWh-
meter
Wire
color
Phoenix-
connector
ABrown 1
BWhite 2
CGreen 3
C.
2
13

16
04 - Connecting the charging station
Option4.1-ConnectingaTeslaWallConnector
Install a circuit breaker and/or earth leakage circuit breaker for each
chargingstationatthemaximalpoweravailable.Seep.33.
Follow the installation instructions of the charging station. These
instructions can be found in the installation manual of the charging
station.
A.
B.
Set the Wall Connector to Slave mode
by placing the rotary switch in F
position.
On the Maxem side connect the
supplied green Phoenix connector
to the data cable. 2 wires need to be
connected:
• Connect wire 1 (orange-white) to
port2.
• Connectwire2(orange)toport1.
Connect the green Phoenix connector
toportRS2ofMaxem.
ConnectthedatacabletotheINportof
the clamp block of the Wall Connector:
• Connect wire 1 (orange-white) to
D+
• Connectwire2(oranje)toD-
Place a suitable UTP (CAT5 or CAT6) of the Wall Connector to Maxem. (To prevent
electromagnetic interference at the RS485 connection, it is recommended to use FTP
CAT6cableatdistancemorethan25m.Max:50m).
C.
F.
G.
E.
D.
Draaischakelaar
F
D+ D- D+ D-
In Uit
RS2 poort voor
laadstation
REVISION
TITLE:
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A A
B B
C C
D D
E E
F F
4
4
3
3
2
2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4
123

17
EN
TopLEDisgreen;theWallConnectorisreadytocharge.
Correct LED
indication
See installation manual Tesla Wall Connector for more information.
Top LED is green, center LED blinks red 4x; the Wall
Connector is set to Slave, but is not communicating
withMaxem..
Incorrect LED
indication

18
REVISION
TITLE:
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DWG NO.
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WEIGHT:
A A
B B
C C
D D
E E
F F
4
4
3
3
2
2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4
Option4.2-ConnectingaKEBAchargingstation
Install a circuit breaker and/or earth leakage circuit breaker at the
maximalpoweravailable. Seep.33.
Follow the installation instructions of the charging station. These
instructions can be found in the installation manual of the charging
station.
Place a suitable UTP (CAT5 or CAT6) cable from the charging station to Maxem and
clenchRJ45connectorsonbothsides.
Connect the UTP cable to the Ethernet
port of the charging station and the
ETHportofMaxem.
It is advisable to test the network cable with the help of a cable tester.
DSW1-Power(paragraphabove)
DSW2-Addressing(paragraphbelow)
DataactivityonETHport
Maxem
DataactivityonETHport
KebaP20orP30
UTP cable with RJ45 connectors
A.
B.
C.
D.
ETH port for
charging station
REVISION
TITLE:
A4
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WEIGHT:
A A
B B
C C
D D
E E
F F
4
4
3
3
2
2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4

19
EN
PutDSW1.3ONtoactivatesmartcharging.
SettheDIPswitchesofDSW1onthemaximalavailablepower.Andleavetherestofthe
DIPswitchesonOFF.
E.
F.
Example 10A
DSW1.6OFF
DSW1.7OFF
DSW1.8OFF
10A
13A
16A
Maximal current strength
20A
25A
32A
SettingsonDSW1
1 of 3-phase
SeeinstallationmanualKEBAP20/P30formoreinformation
SwitchotheKebaP20/P30(theDIPswitchsettingsonlybecomeactiveafterareset
ofthechargingstation).
G.

20
Option4.3-ConnectinganICUchargingstation
Connect the UTP cable to the Ethernet
port of the charging station and the
ETHportofMaxem.
It is possible to update the charging station rmware. This can be done via ICU
Connect, as soon as the charging station is online. ICU Alfen can assist you with this.
It is advisable to test the network cable with the help of a cable tester.
Data activity on
ETH port ICU
UTP cable with RJ45 connectors
D.
REVISION
TITLE:
A4
DWG NO.
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WEIGHT:
A A
B B
C C
D D
E E
F F
4
4
3
3
2
2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4
Install a circuit breaker and/or earth leakage circuit breaker for each
charging station at the maximal power available.Seep.33.
Follow the installation instructions of the charging station. These
instructions can be found in the installation manual of the charging
station.
Place a suitable UTP (CAT5 or CAT6) cable from the charging station to Maxem and
clenchRJ45connectorsonbothsides.
A.
B.
C.
DataactivityonETH
port Maxem
ETH poort voor
laadstation
REVISION
TITLE:
A4
DWG NO.
SCALE:1:2 SHEET 1 OF 2
WEIGHT:
A A
B B
C C
D D
E E
F F
4
4
3
3
2
2
1
DATESIGNATURE
DO NOT SCALE DRAWING
MATERIAL:
NAME
1
DRAWN
LINEAR:
CHK'D
APPV'D
MFG
Q.A
ANGULAR:
FINISH:
TOLERANCES: EDGES
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
DEBURR AND
BREAK SHARP
Maxem5-R4