SMA POWER REDUCER BOX Technical Description page 10

Safety
Operating Instructions
Inverters not supported in the PV system
Inverters not supported do not implement the parameters via the Power Reducer Box. The
parameters of the utility operator can however be achieved. For this the status
configuration of the Power Reducer Box must be adjusted so that the output of the
supported inverters is more strongly controlled.
If the utility operator requires an active power limitation of 0 %, the unsupported inverters
must be disconnected via a suitable switching unit.
In case of doubt, please contact your utility operator or the SMA Service Line before you
commission the Power Reducer Box.
No automatic firmware update for registered Sunny WebBox devices
When using the Power Reducer Box for managing feed-in, the automatic firmware update
must be deactivated in all Sunny WebBox devices that are to be registered. Please note
that the specifications of the utility operator cannot be implemented during the Sunny
WebBox update process.
No DHCP mode in the registered Sunny WebBox devices
In the case of changing IP addresses in the WebBox devices (e.g. in DHCP networks) the
Power Reducer Box does not function correctly. Convert all Sunny WebBox devices to be
registered by the Power Reducer Box to static IP addresses.
Data traffic via the RPC interface
Limitation instructions from the Power Reducer Box are sent via the Sunny WebBox RPC
interface. Avoid additional data traffic via the Sunny WebBox RPC interface, so as not to
compromise the speed of the limitation instructions.
JavaScript
JavaScript must be activated in your browser!
Data security
You can connect the Power Reducer Box to the internet. This, however, carries a security
risk. SMA recommends changing the login password after the initial installation in order to
protect it from unauthorized access by third parties. Select a number-letter combination
with at least 8 characters for your password (see section 8.1 "Setting the Password."
(page 38)).
10 REDUCERBOX-TEN100412
SMA Solar Technology AG
Technical Description