SMA AC ELWA-E Into Sunny Home Manager Instruction Manual

June 12, 2024
SMA

Instructions for integrating
AC•THOR® or AC ELWA® -E into SMA Sunny Home Manager (SHM) or SMA Energy Meter

Default settings on AC•THOR or AC ELWA-E

Before commissioning, it is essential that you read the assembly instructions that accompany the device, as well as the operating instructions available on line.
Find the AC•THOR operation manual here.
Find the AC ELWA-E operation manual here.
Two control types are available for SMA:

SMA Home Manager| The power signal which the SMA Sunny Home Manager gives the my-PV device depends not only on the feed-in, but also on the superordinate energy planning that can be configured in the SMA Portal. In this control mode, the SMA Home Manager decides when the my-PV device outputs power.
NOTE: There are no records of grid consumption and grid feed-in in the my-PV Cloud.
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SMA Direct meter communication| This control type can be used with the signal sources SMA Energy Meter and SMA Sunny Home Manager.
In contrast to the “SMA Home Manager” control type, the my-PV device itself takes over the function of the controller, as the surplus information is read directly from the SMA meter. The power control is carried out much faster than with the “SMA Home Manager” control type.
NOTE: The my-PV device is not listed in the load overview in the Sunny Portal.
This control type is available for the AC•THOR from firmware version a0020202, for the AC ELWA-E from firmware version 201.00!
NOTE for AC•THOR: To install this firmware on already delivered devices, please send us the 16-digit serial number to support@my-pv.com. We will gladly activate the update for you!

AC•THOR Control setting for “SMA Home Manager”
With the AC•THOR, “SMA Home Manager” must be selected either on the display or in the web interface for the control type. Further settings are not required for communication with SMA.

SMA AC ELWA E Into Sunny Home Manager - fig1

TIP for optimized use of the AC•THOR by the Home Manager.
If a heating element <3kW is connected to the AC-THOR, or if a heating element <9kW is connected to the AC-THOR 9s, then set the rated power of the heating element using this URL command on the AC•THOR:
IP-Adress xxx.xxx.xxx.xxx/setup.jsn?shmmaxpower=6000
(Example for a 6kW heating rod at the AC•THOR 9s)
You can check the correctness of the parameter entry in Sunnyportal. The value “Power consumption:” 9000 W must be changed to the entered value after a few minutes.
AC ELWA-E Control setting for “SMA Home Manager”
With the AC ELWA-E, “SMA Home Manager” must be selected for the control type in the web interface. Further settings are not required for communication with SMA.

SMA AC ELWA E Into Sunny Home Manager - fig2

TIP: If the Sunny Home Manager does not find the device immediately, a restart after saving the control type could help!
AC•THOR / AC ELWA-E Control setting for “SMA Direct meter communication”
This control is suitable for both the SMA Sunny Home Manager and the SMA Energy Meter! For both AC•THOR and AC ELWA-E, “SMA Direct meter communication” must be selected in the web interface for the control type. Further settings are not required for communication with SMA.
If this type of control is used in combination with a storage battery, we recommend setting the “Control target” to “-200” Watt!

SMA AC ELWA E Into Sunny Home Manager - fig3

Select “SMA Direct meter communication Auto” if there is only one meter.
Select “SMA Direct meter communication Manual” if there are multiple meters on the network and a specific one of them is to be selected as the control source by specifying its IP address.
TIP: The control settings can only be adjusted if the my-PV device has the factory preset device number “1”. Even if several devices are controlled by „SMA Home Manager“, it is not necessary to change the device numbers! See heading “Basic settings” also on the “Setup” page.

SMA AC ELWA E Into Sunny Home Manager - fig4

Integrating the device in the Sunny Portal for control type “SMA Home

Manager”

The SHM must already be registered in the SMA portal!
If – Configuration – Device overview is selected in the SMA portal, only the SHM will be displayed at first. AC•THOR or AC ELWA-E will not appear to start with. Once the configuration process is complete, it will appear in the lower- level menu item – Load overview and planning.

SMA AC ELWA E Into Sunny Home Manager - fig5

Searching for and adding AC•THOR or AC ELWA-E in the SHM
Update the list under – Configuration – Device overview – Overview of New Devices – “Refresh devices”.
This process may take several minutes.
Admin rights are required for this setting!

SMA AC ELWA E Into Sunny Home Manager - fig6

AC•THOR or AC ELWA-E will appear as a “Smart Appliance” together with its MAC- address – click “+” to configure.

SMA AC ELWA E Into Sunny Home Manager - fig7

Configuration – Step 1
Product type will be used automatically in combination with the last three characters of the MAC address as a device name. The MAC address can also be seen on the type plate.

SMA AC ELWA E Into Sunny Home Manager - fig8

Configuration – Step 2
In order for AC•THOR or AC ELWA-E to simply make use of surplus energy that can no longer be used by other loads, my-PV recommends the following settings:

  • Set the priority of the load to a very low
  • Switch on the load depending on the proportion of PV energy
  • Move the “Optional energy demand” slide as required

SMA AC ELWA E Into Sunny Home Manager - fig9

Configuration – Step 3
These settings are displayed once more for checking.

SMA AC ELWA E Into Sunny Home Manager - fig10

Click the “Finish” button to complete the addition of the new system extension. This is confirmed with a message.

SMA AC ELWA E Into Sunny Home Manager - fig11

Once the configuration is complete, AC•THOR or AC ELWA-E will appear in the menu item – Load overview and planning.

SMA AC ELWA E Into Sunny Home Manager - fig12

The load characteristics of the new “Smart Appliance” can be displayed again at any time.
AC•THOR® or AC ELWA® -E Integration into SMA SHM or SMA EM, 230310

SMA AC ELWA E Into Sunny Home Manager - fig13

In the SHM AC•THOR or AC ELWA-E are not managed via time windows as is usually the case with wireless sockets for example!
Periods in which hot water securing must be boosted are specified in AC•THOR or AC ELWA-E settings directly. (see respective operating instructions on www .my-pv.com)
Bear in mind the optimization target settings within the SHM!
The factory setting of the SHM for the payment settings has an optimisation target of “economical”.
In this case, my-PV recommends changing the optimisation target to “ecological”! Readjust this under – Configuration – PV system properties – Parameters.

Optimization Target
The optimization target indicates whether the Sunny Home Manager should prioritize ecological or economical factors for load management. If you select ‘ecological- as the optimization target, the Sumy Home Manager calculates the solution which uses the greatest self-consumption. Greater self-consumption conserves the environment because there no energy loss caused by the transport of current through the power chstrbution grid. If you select the ‘economical’ optimization target, the Sunny Home Manager calculates the most financially rewarding control of the loads, talthg into consideration the feed-in and self consumption tariffs. In tertian cases, it may be more economical to feed the pry electridty nto the power distrbution grid and to operate the incivickal loads at night using electricity pirchased from the grid.

SMA AC ELWA E Into Sunny Home Manager - fig14

AC•THOR or AC ELWA-E with SHM and battery
my-PV recommends prioritising the use of excess energy for charging the battery. Only once the battery has finished charging AC•THOR or AC ELWA-E should start generating heat. This is achieved by making the following setting:

  • Activate “Storage management via the Home Manager”
  • Activate “Charging of the battery prior to optional loads”

SMA AC ELWA E Into Sunny Home Manager - fig15

Once the battery is fully charged, AC•THOR or AC ELWA-E are only then used when no other consumer has a higher priority!
If the excess PV power is greater than the maximum charging capacity of the battery, generation of heat can simultaneously happen with battery charge!
Control multiple devices with the SHM

The adaptation of the internal multi-settings for the operation of several devices is not required when the control type is “SMA Home Manager”!
Since the control type “SMA Home Manager” actively controls loads like AC•THOR or AC ELWA-E, it is not necessary to configure one device as master and the others as slaves. All devices continue to have the factory pre-set device number 1.
Settings for systems with zero feed-in
For systems with zero export to the power-grid the settings have to be made as follows.

my-PV GmbH
Betriebsstrasse 12, 4523 Neuzeug
www.my-pv.com
Subject to change.

References

Read User Manual Online (PDF format)

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