solarwatt AC-SENSOR FLEX User manual


Installationsanleitung
Installation Instructions
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3 Intended use
The power meter AC Sensor Flex (referred to
hereinafter as ACS) is a device that takes the
electrical measurements at a 1 or 3-phase AC
voltage connection and transmits the values via
CAN bus. The device is intended exclusively for
private use with a MyReserve battery storage
system and the EnergyManager. This product is
not an active electric energy meter as defi ned
by EU Directive 2004/92/EC (IDE). The ACS
must not be used for billing purposes. The data
that the device records may di er from the data
of the energy meter used for billing.
The ACS must only be connected in the custo-
mer‘s main switchboard on the consumer side
downstream from the retail meter of the power
supply company. It is suited exclusively for use
indoors in a switch box or meter cabinet. The
ACS is approved for use in member states of the
EU, as well as Switzerland and Australia. Its use
is permitted exclusively in compliance with the
specifi cations of the accompanying documen-
tation. Any other use could result in property
damage and personal injury. Modifi cations and
installation of additional components are pro-
hibited for safety reasons. The accompanying
documentation is an integral component of the
product. The user of the product must have read
and observed the documentation and keep it
accessible at all times.
4 Safety

The live parts carry extremely dangerous voltages. Only use the ACS in a dry environment
and keep it away from liquids. Only operate the ACS behind a cover or with a contact guard in
a switch cabinet. Disconnect the ACS before cleaning it and only clean it using a dry cloth.


Connection of mains voltage to the CAN bus terminals can damage or destroy the device.
Operation outside of the specifi ed technical data can damage or destroy the device (see
„Technical data“ at the end of this guide).

PAGE 18 | Version: 07/2020 | Rev. 002 | AZ-TM-PME-1626 | Subject to changes | © 2020 SOLARWATT GmbH

5 Product description
The ACS is a bidirectional Current transformer
that measures the electrical power for import
and export, and communicates to the MyReserve
battery storage system, which is then regulated
accordingly.
The ACS is installed after from the retail meter.
MyReserve
PV-Inverter
Fuse boxHaushold appliances AC-Sensor 2 way
Utility meter
Utility grid
PV Plant
CAN
communication
6 Layout
1Connection terminal for external CT-
clamps 6DIP-switch S4
Current ratio settings
2DIP-switches S1, S2, S3 for activation of
CT-clamp measurement 7 Reset switch
3 CAN connection MyReserve (RJ45)
4 Grid-side connections
5 House-side connections
Version: 07/2020 | Rev. 002 | AZ-TM-PME-1626 | Subject to changes | © 2020 SOLARWATT GmbH | PAGE 19

7 Display elements
The fi gure shows the LED indicators in the correct operating state. For error states, please refer to
chapter „Faults“ on page 14.
1 L1, L2, L3 phase conductors carry power
2Feed-In PV feed-in > 100 W
3CAN CAN communication operating
4Status fl ashing 1x/s = operational
fl ashing 5x/s = error/update
8 Connection and commissioning
    

Extremely dangerous voltage runs through
the household junction box. Disconnect
the connection point and secure against
re-connection. Ensure that the conductors
that are connected to the ACS or should be
disconnected from it are de-energized.


Observe the 5 safety rules!
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If you use a network installation cable the suitable RJ45 connectors are available in the
SOLARWATT webshop (DELOCK 86287 RJ45 connectors).
Make sure that the pins H (pin 1), L (pin 2) and GROUND (pin 6) are connected to MyRe-
serve Command and the AC sensor with the same assignment.

pin assignment DELOCK 86287 RJ45 Stecker
pin assignment (any connector)
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8.1 Direct measurement
• Mount the ACS in a DIN-rail: hook the device on the upper edge of the DIN-rail and press down
until it clicks in place.
• Connect the ACS according to the relevant wiring diagram (“single ACS”, “ACS and MyReserve”,
“ACS, MyReserve and EnergyManager”).
• Check DIP switch settings for S1, S2, S3 (for direct measurement, all three switches should be
to the left) and DIP switch settings for S4 (ensure all four switches are ON (to the left)) under
the case cover
ON
123 4
 
• Close/secure the case cover using the enclosed cable ties.
single ACS (1-phase, 3-phase)
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ACS and MyReserve
Version: 07/2020 | Rev. 002 | AZ-TM-PME-1626 | Subject to changes | © 2020 SOLARWATT GmbH | PAGE 23

ACS, MyReserve and EnergyManager
PAGE 24 | Version: 07/2020 | Rev. 002 | AZ-TM-PME-1626 | Subject to changes | © 2020 SOLARWATT GmbH

8.2 CT clamp measurement
• Mount the ACS in a DIN-rail: hook the device on the upper edge of the DIN-rail and press down
until it clicks in place.
• Connect the ACS according to the relevant wiring diagram (“single ACS”, “ACS and MyReserve”).
• Select fuse protection for the power supply cables according to the conductor cross section.
single ACS (1-phase)
Version: 07/2020 | Rev. 002 | AZ-TM-PME-1626 | Subject to changes | © 2020 SOLARWATT GmbH | PAGE 25

single ACS (3-phase)
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ACS and MyReserve
Version: 07/2020 | Rev. 002 | AZ-TM-PME-1626 | Subject to changes | © 2020 SOLARWATT GmbH | PAGE 27

• Activate CT clamp measurement via DIP switches S1, S2 and S3. All switches must be in the
same position (see fi gure on the left).
• Set CT clamp ratio via DIP switch S4 (under case cover).
• See setting details in the table.
• Close/secure the case cover using the enclosed cable ties.
  

  
  






The CT clamps must have a secondary current of ≤ 1 A and a minimum output power of
0.2 VA.
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9 Faults
   



No Measure-
ment data
No
Power supply
no LED lights
up
Make sure that voltage is applied to
terminal L1
Make sure that voltage is applied to
terminal L1
CAN bus not
connected/
not connected
correctly
CAN-LED does
not light up
green
Check connection and wiring of the
CAN bus
Check connection and wiring of the
CAN bus
Error Status LED
ashes 5x/s
Restart the ACS:
• switch o the phase that is
connected to L1
• switch on again after 3 s
Restart the ACS:
• switch o the phase that is
connected to L1
• switch on again after 3 s
Unusual
measure-
ments
Incorrect
installation
Feed-In LED
indicates wrong
status
Check the assignment of L1, L2
and L3
Check Grid-side and House-side
Check the assignment of L1, L2 and
L3 on the CT clamps
Two or more
phase conduc-
tors interposed
Feed-In LED
indicates wrong
status
Check the assignment of L1, L2
and L3
Check the assignment of L1, L2 and
L3 on the CT clamps
Check the direction of the current
ow of the CT clamps
The secondary
winding of one
or more current
transformer
clamps is
connected in a
wrong direction
Feed-In LED
indicates wrong
status
Check the direction of the current
ow of the CT clamps and the
connection of the secondary winding
Version: 07/2020 | Rev. 002 | AZ-TM-PME-1626 | Subject to changes | © 2020 SOLARWATT GmbH | PAGE 29

10 Technical data
11 Disposal
The ACS must be disposed of in accordance with the locally applicable waste
disposal regulations for electronic scrap.
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Version: 07/2020 | Rev. 002 | AZ-TM-PME-1626 | Subject to changes | © 2020 SOLARWATT GmbH | PAGE 31

Any Questions?
If you are experiencing technical problems with the product, please use the service hotline.
We will need the following information to assist you further:
• Type and serial number of the ACS (can be read on the type plate)
• Type and serial number of the device receiving the measurements
form the ACS on the CAN bus
• Provide as much detail as possible when describing the error





Haben Sie Fragen?
Bei technischen Problemen mit dem Produkt wenden Sie sich an die Servicehotline.
Wir benötigen folgende Daten um Ihnen gezielt helfen zu können:
• Typ und Seriennummer des ACS (abzulesen am Typenschild)
• Typ und Seriennummer des Gerätes, welches die Messwerte vom
ACS am CAN-Bus empfängt
• möglichst detaillierte Fehlerbeschreibung
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