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POWER REDUCER BOX
User Manual
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SMA POWER REDUCER BOX User Manual

EN
Device for Power Control of PV Plants
POWER REDUCER BOX
User Manual
REDUCERBOX-BA-en-16 | 98-0018716 | Version 1.6
SMA Solar Technology AG Table of Contents
Table of Contents
1 Information on this Document. . . . . . . . . . . . . . . . . . . . . . . 7
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Supported Products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Qualification of Skilled Persons . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5 Operating Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Scope of Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Power Reducer Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.4 Sunny Portal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.5 System Requirements of the Computer . . . . . . . . . . . . . . . . . . . 19
5 The Power Reducer Box User Interface . . . . . . . . . . . . . . 20
5.1 User Groups and User Rights . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Overview of the Login Page . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3 Overview of the User Interface. . . . . . . . . . . . . . . . . . . . . . . . . 22
5.4 Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.5 Context menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.6 Status Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.7 Events Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table of Contents SMA Solar Technology AG
6 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.1 Requirements for the Mounting Location. . . . . . . . . . . . . . . . . . 25
6.2 Mounting the Power Reducer Box on the Wall . . . . . . . . . . . . 26
6.3 Mounting the Power Reducer Box on a Top-Hat Rail . . . . . . . . 26
7 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 27
7.2 Connecting the Power Reducer Box to the Ripple Control
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.3 Lengthening the Connection Cable. . . . . . . . . . . . . . . . . . . . . . 30
8 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.1 Integrating the Power Reducer Box into the Local Network . . . 31
8.1.1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.1.2 Connecting the Power Reducer Box to the Computer. . . . . . . . . . . . . . . . . . 31
8.1.3 Setting the Computer to the Standard Network Settings of the
Power Reducer Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.1.4 Setting up a Proxy Exception Rule in Internet Explorer . . . . . . . . . . . . . . . . . 34
8.1.5 Setting the Power Reducer Box to Local Network Settings . . . . . . . . . . . . . . 34
8.1.6 Resetting the Computer to Previous Network Settings. . . . . . . . . . . . . . . . . . 36
8.1.7 Connecting the Power Reducer Box to the Local Network . . . . . . . . . . . . . . 36
8.2 Sunny WebBox Registration in the Power Reducer Box . . . . . . 38
8.2.1 Registering the Sunny WebBox. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8.2.2 Editing/Removing a Sunny WebBox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8.3 Configuring Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.3.1 Setting Active Power Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
8.3.2 Setting the Reactive Power Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
8.3.3 Setting the Cos Phi Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.3.4 Configuring Combined Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.3.5 Setting General System Statuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
8.4 Configuring and Activating "Fallback" . . . . . . . . . . . . . . . . . . . 45
4 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG Table of Contents
9 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
9.1 Logging In or Out of the Power Reducer Box . . . . . . . . . . . . . . 47
9.2 Accessing the Power Reducer Box via Sunny Portal. . . . . . . . . 48
9.3 Filtering and Displaying Events . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.4 Downloading Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
9.5 Saving Events to an SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . 49
10 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
10.1.1 Registering the Power Reducer Box in Sunny Portal . . . . . . . . . . . . . . . . . . . 51
10.1.2 Removing a Power Reducer Box Registered in Sunny Portal from a Plant . . 52
10.1.3 Deactivating Data Transmission to the Sunny Portal . . . . . . . . . . . . . . . . . . . 52
10.2 Changing your Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
10.3 Resetting your Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
10.4 Setting the Date and Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
10.5 Setting Protocol Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
10.6 Firmware Update for the Power Reducer Box. . . . . . . . . . . . . . 55
10.6.1 Configuring an Automatic Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . 55
10.6.2 Performing a Manual Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
10.6.3 Updating the Firmware via an SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
10.7 Resetting the Power Reducer Box . . . . . . . . . . . . . . . . . . . . . . . 57
10.8 Information on the "prb.cfg" File . . . . . . . . . . . . . . . . . . . . . . . . 57
11 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
11.1 Switching the Power Reducer Box Off . . . . . . . . . . . . . . . . . . . 58
11.2 Disassembling the Power Reducer Box. . . . . . . . . . . . . . . . . . . 58
11.3 Packing the Power Reducer Box for Transportation . . . . . . . . . 58
11.4 Disposing of the Power Reducer Box . . . . . . . . . . . . . . . . . . . . 59
Table of Contents SMA Solar Technology AG
12 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
12.1 Status Displays of the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
12.2 Explanation of the LEDs at the Ethernet Terminal . . . . . . . . . . . 62
12.4 Error Messages in Connection with Sunny Portal . . . . . . . . . . . 65
12.4.1 Error Messages in the Events Logbook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
12.4.2 Errors During Registration in Sunny Portal. . . . . . . . . . . . . . . . . . . . . . . . . . . 69
13 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
13.1 Power Reducer Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
13.2 Plug-in Power Supply (CINCON, TRG30R 120) . . . . . . . . . . . 74
14 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
15 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG 1 Information on this Document

1 Information on this Document

Validity
This manual is valid for the device type PRB.GR1 from hardware version C2 and from firmware version 1.7.0.
Target Group
This document is intended for skilled persons and end users. Some of the tasks described in this document may only be performed by skilled persons with the appropriate qualifications (see Section 2.3"Qualification of Skilled Persons",page11). These tasks are identified by an information note.
Additional Information
Links to additional information can be found at www.SMA-Solar.com.
Document title Document type
Reactive Power and Grid Integration Technical information
Symbols
Symbol Explanation
Indicates a hazardous situation which, if not avoided, will result in death or serious injury
Indicates a hazardous situation which, if not avoided, could result in death or serious injury
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury
Indicates a situation which, if not avoided, could result in property damage
Information that is important for a specific topic or goal, but is not safety-relevant
☐ Indicates an essential requirement for achieving a specific goal
☑ Desired result
✖ A problem that might occur
1 Information on this Document SMA Solar Technology AG
Typography
Typography Explanation Example
"Light" • Display messages
• Elements on a user interface
• Connections
• Elements to be selected
• Elements to be entered
> • Connects several elements
• The value can be read off in the "Energy" field.
•Select "Settings".
•Enter the value 10 in the Minutes field.
•Select "Settings > Date".
that are to be selected
[Button/Key] • B utt on o r ke y to be s ele cte d or
•Select [Next].
pressed
Nomenclature
Full designation Designation in this document
Electronic Solar Switch ESS
SMA Bluetooth
SMA inverter Inverter
Sunny WebBox and Sunny WebBox with
Bluetooth
®
Wireless Technology Bluetooth
®
Wireless Technology
Sunny WebBox
Abbreviations
Abbreviation Designation Explanation
AC Alternating Current ‒
CSV Comma Separated Values File format
DC Direct Current ‒
DHCP Dynamic Host Configuration Protocol Protocol for the dynamic assignment of
IP configurations
IP Internet Protocol ‒
LED Light-Emitting Diode ‒
PV Photovoltaics ‒
XML Extensible Markup Language ‒
8 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG 2 Safety

2Safety

2.1 Intended Use

The Power Reducer Box is for PV plants that have to implement network operator setpoints for active power limitation and reactive power operation under grid management. The Power Reducer Box complies with the requirements of the German Renewable Energy Sources Act (EEG) for feed-in management and the requirements of the medium-voltage directive for grid management set out by the German Association of Energy and Water Industries (BDEW).
The network operator can use the Power Reducer Box to temporarily and remotely limit the feed-in capacity of the PV plant in the case of a grid overload. The Power Reducer Box translates the control commands of the network operator and transmits them to the Sunny WebBox. The Sunny WebBox forwards the control commands to the inverter.
The Power Reducer Box primarily performs the following tasks:
• Active power limitation and reactive power setpoint
• Recording all control commands of the network operator
• Control of up to 2,500 SMA inverters via Sunny WebBoxes
• Data transfer to the Sunny Portal Internet portal for visualisation and optimal notification to the plant operator
The Power Reducer Box is designed for indoor use only. The Power Reducer Box is only to be operated using the supplied plug-in power supply and in the
voltage range intended for this. The Power Reducer Box must only be used with supported products. For safety reasons, it is not permitted to modify the product or install components that are not explicitly
recommended or distributed by SMA Solar Technology AG for this product. Only use the Power Reducer Box in accordance with the information provided in the enclosed documentation. Any other use may result in personal injury or property damage.
The enclosed documentation is is intregal of this product.
• Read and adhere to the documentation.
• Keep the documentation in a convenient place for future reference.
2 Safety SMA Solar Technology AG

2.2 Supported Products

SMA products
Inverters:
You will find an up-to-date list of the inverters supported by the Power Reducer Box in the user interface of the Power Reducer Box ("Status configuration > Compatibility list") or at www.SMA-Solar.com. If you have further questions on supported inverters, contact the SMA Service Line.
Additional products:
• Sunny WebBox from firmware version 1.45*
• Sunny WebBox with Bluetooth firmware version 1.04 or later**
• Sunny Portal
• SMA Update-Portal
* Requirements: the transmission protocol of your plant must be set to SMA-NET and the Sunny WebBoxes must not be
operated in DHCP mode.
** The Sunny WebBoxes must not be operated in DHCP mode.
Products from other manufacturers
Digital signal sources:
• Signal sources with digital relay contacts
Routers and network switches:
• Routers and network switches for Ethernet with 10 Mbit/s or fast Ethernet with 100 Mbit/s data transfer speed
Plug-in power supply units:
• Input voltage: 100 V … 240 V AC, 50/60 Hz
• Typical power consumption: 4 W
• Maximum power consumption: 12 W
SD cards:
• SD cards with 2 GB memory capacity
10 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG 2 Safety

2.3 Qualification of Skilled Persons

Some of the tasks described in this document may only be performed by skilled persons. These tasks are identified by an information note. Skilled persons must have the following skills:
• Training in how to deal with the dangers and risks associated with installing and using electrical devices and plants
• Training in the installation and commissioning of electrical devices and plants
• Knowledge of all applicable standards and directives
• Knowledge of and adherence to this document and all safety precautions

2.4 Safety Precautions

Safety-Relevant Parameters
Safety-relevant operating parameters of the inverters in your plant can be changed using the Power Reducer Box. These parameters may normally only be changed after consultation with the power supply company into whose electricity grid you are feeding.
• If you have any doubts, contact your power supply company.
Electrostatic Discharge
By touching electronic components, you may cause damage to or destroy the Power Reducer Box through electrostatic discharge.
• Earth yourself before touching any components.
Data Security
You can connect the Power Reducer Box to the Internet. When accessing via the Internet, there is the risk that unauthorised users may access and manipulate the data or devices in your plant.
• Take suitable protective measures (e.g. set up a firewall, close network ports that are not required, only enable remote access via the VPN tunnel).
• After logging in for the first time, change the default password. Select a number-letter combination with at least eight characters for your password (see Section 10.2"Changing your Password",page53).
• Keep the password secret and prevent unauthorised persons from accessing it.
User Manual REDUCERBOX-BA-en-16 11
2 Safety SMA Solar Technology AG

2.5 Operating Instructions

Inverters Not Supported in the PV Plant
Inverters that are not supported do not implement the parameters via the Power Reducer Box. The setpoint of the network 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 network operator requires an active power limitation of 0%, t he unsupp ort ed i nve rte rs must be disconnected via a suitable switching unit.
• If in doubt, contact your network operator or the SMA Service Line before you commission the Power Reducer Box.
No DCHP Mode in the Registered Sunny WebBoxes
In the event of changing IP addresses of the Sunny WebBoxes (e.g. in DHCP networks) the Power Reducer Box does not function correctly. Reset all Sunny WebBoxes to be registered by the Power Reducer Box to static IP addresses.
Data Traffic via the RPC Interface
Limitation commands 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 commands.
12 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG 3 Scope of Delivery

3Scope of Delivery

Check the scope of delivery for completeness and any externally visible damage. Contact your specialist dealer if the delivery is incomplete or damaged.
Figure1: Components included in scope of delivery
Item Quantity Description
A1Power Reducer Box
B 1 Plug-in power supply with 4 adapters
C 1 Red Ethernet cable (patch cable)
D 1 Blue Ethernet cable (crossover cable)
E2Screw
F 2 Wall plug
G 1 User manual and commissioning checklist
H 1 Pre-terminated cable (length: 2.5 m) with 7-pole plug
User Manual REDUCERBOX-BA-en-16 13
4 Product Description SMA Solar Technology AG

4 Product Description

4.1 Power Reducer Box

The Power Reducer Box is for PV plants that have to implement network operator setpoints for active power limitation and reactive power operation under grid management. The network operator can use the Power Reducer Box to temporarily and remotely limit the feed-in capacity of the PV plant in the case of a grid overload. The Power Reducer Box translates the control commands of the network operator and transmits them to the Sunny WebBox. The Sunny WebBox forwards the control commands to the inverter.
The Power Reducer Box primarily performs the following tasks:
• Active power limitation and reactive power setpoint
• Recording all control commands of the network operator
• Control of up to 2,500 SMA inverters via Sunny WebBoxes
• Data transfer to the Sunny Portal Internet portal for visualisation and optimal notification to the plant operator
Four digital states (e.g. a ripple control receiver) can be imported with the Power Reducer Box and the inverters can be set according to the specifications of the network operator. The four inputs can be freely configured via the integrated user interface on the Power Reducer Box. If a signal from the ripple control receiver is present, the Power Reducer Box analyses the signal and relays an instruction via the Ethernet network to the registered Sunny WebBoxes. The Sunny WebBoxes contacted transfer the instruction to the connected inverters.
Ev ent s ar e re cor ded in t he i nte rna l me mor y of the Pow er R educer Box. I t is als o po ssi ble to s ave eve nts onto an SD card or to download events via the user interface.
The Power Reducer Box sends the event data to the Sunny Portal. The Sunny Portal can display the sent data and inform the user of this by e-mail in the event of applied power limitations.
The Power Reducer Box can automatically update its firmware via the SMA Update-Portal if a new update is available. For this purpose, the Power Reducer Box must have an Internet connection.
14 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG 4 Product Description
Figure2: Principle of implementing grid management with the Power Reducer Box and the Sunny WebBox
Figure3: Principle of implementing grid management with the Power Reducer Box and the Sunny WebBox with
Bluetooth
User Manual REDUCERBOX-BA-en-16 15
4 Product Description SMA Solar Technology AG
Connecting the Power Reducer Box to the local network
The diagram for the principle of implementing grid management does not replace the exact terminal assignment for connecting the Power Reducer Box to the local network. The exact terminal assignment can be found in Section 8.1.7"Connecting the Power Reducer Box to the Local Network",page36.
Operating Mode
• Active power limitation
• Reactive power setpoint with active power output
16 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG 4 Product Description

4.2 Type Label

The type label provides unique identification of the Power Reducer Box. The type label is located on the back of the Power Reducer Box.
Figure4: Information on the type label
Item Explanation
A Device type
B Serial number
C Device-specific characteristics
You will require the information on the type label to use the device safely and for customer support from the SMA Service Line. The type label must be permanently attached to the Power Reducer Box.
Symbols on the Type Label
Symbol Description Explanation
Indoor The product is only suitable for indoor
installation.
C-Tick The product complies with the requirements
of the applicable Australian EMC standards.
CE marking The product complies with the requirements
of the applicable EC directives.
WEEE designation Only dispose of the product in accordance
with the locally applicable disposal regulations for electronic waste and not with household waste.
User Manual REDUCERBOX-BA-en-16 17
4 Product Description SMA Solar Technology AG

4.3 LEDs

Figure5: LED overview
LED Meaning
POWER COMMAND Validity of the setpoint
POWER STATUS Status of the power limitation
WEBBOXCOM Communication with Sunny WebBox
NETCOM Activity in the Ethernet network
SD CARD Status of the SD card
SYSTEM Operational readiness
POWER Power supply

4.4 Sunny Portal

The Power Reducer Box can send data to the Sunny Portal Internet portal (www.SunnyPortal.com). This data includes for example status information, system statuses and events. The sent data is displayed graphically in the Sunny Portal.
Events such as changes to the requirements of the network operator, changes to the status configuration or disturbances can be saved in the Sunny Portal plant logbook. In addition, the Sunny Portal can inform the user of actual events via e-mail (see Sunny Portal for Sunny WebBox user manual).
Currentness of the data in Sunny Portal
The Power Reducer Box sends data to the Sunny Portal as soon as events occur or settings are made via the user interface. The data in Sunny Portal can be displayed with a time delay, depending on your Internet connection and the processing of data in Sunny Portal.
18 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG 4 Product Description

4.5 System Requirements of the Computer

Supported Internet browsers:
• Microsoft Internet Explorer from version 8
• Mozilla Firefox from version 3.6
• Google Chrome from version 23.0
• Apple Safari from version 5.1.7
• Opera from version 12
Recommended screen resolution:
• At least 1,024 pixels x 768 pixels
User Manual REDUCERBOX-BA-en-16 19
5 The Power Reducer Box User Interface SMA Solar Technology AG

5 The Power Reducer Box User Interface

5.1 User Groups and User Rights

The Power Reducer Box differentiates between three user groups:
•User
• Installer
•Service
"Service" user group
The "Service" user group is exclusively restricted to SMA service employees.
In order to prevent two users effecting contradictory settings at the same time, only one user can ever be logged on to the Power Reducer Box at one time.
In addition to the rights of the "User" user group, the "Installer" user group has the following rights:
• Changing the status configuration
• Registering and editing Sunny WebBoxes in the Power Reducer Box
• Resetting the "User" user group password
20 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG 5 The Power Reducer Box User Interface

5.2 Overview of the Login Page

Figure6: Login page of the Power Reducer Box on the computer
Item Description
ADevice status
B Language selection
CLogin area
D Serial number and software version
E Last update to page content
User Manual REDUCERBOX-BA-en-16 21
5 The Power Reducer Box User Interface SMA Solar Technology AG

5.3 Overview of the User Interface

You can operate the Power Reducer Box via the user interface.
Figure7: Layout of the user interface
Item Description
A Main menu
BContext menu
CContent area

5.4 Main menu

Button Function
This button opens the "Status" page (see Section 5.6"Status Page",page23).
This button opens the "Events" page (see Section 5.7"Events Page",page24).
This button opens the "Network and system settings" page of the Power Reducer Box.
You can log out using this button.
22 REDUCERBOX-BA-en-16 User Manual
SMA Solar Technology AG 5 The Power Reducer Box User Interface

5.5 Context menu

Menu item Function
Sunny WebBox registration This menu item opens the "Sunny WebBox registration"
page (see Section 8.2"Sunny WebBox Registration in the Power Reducer Box",page38).
Status configuration This menu item opens the "Status configuration"
page (see chapter 8.3"Configuring Operating Modes",page40).
Password settings This menu item opens the "Password settings" page.
Sunny Portal settings This menu item opens the "Sunny Portal settings"
page (see Section 4.4"Sunny Portal",page18).
Update settings This menu item opens the "Update settings" page (see Section
10.6"Firmware Update for the Power Reducer Box",page55).

5.6 Status Page

On the "Status" page, an overview of the current status of the PV plant is given in the upper area. The following information is shown:
Device status The device status displays the overall status of the Power Reducer Box.
Operating mode The operating mode displays the setpoint that the Power Reducer Box
is currently implementing.
Setpoint (set) The setpoint (target) displays the values that have been configured in
the Power Reducer Box for the parameter.
Setpoint (current) The setpoint (current) displays the values that are currently being
implemented.
Status of the input ports The status shows the current incoming signal from the ripple control
receiver. K1 to K4 relate to the respective connected relays. If no signal is incoming, the value "Open" is displayed.
Display of the current status of the Power Reducer Box
The device status is also displayed on the login page of the Power Reducer Box.
User Manual REDUCERBOX-BA-en-16 23
5 The Power Reducer Box User Interface SMA Solar Technology AG
In the lower area all Sunny WebBoxes registered in the Power Reducer Box are listed with their current communication status. A Sunny WebBox can have the following status:
Symbol Status Description
OK The communication between the Power Reducer Box and
Sunny WebBox is functioning is correctly.
Configuration failure There is a communication error between the Power Reducer Box
and the Sunny WebBox. This error is displayed if no Sunny WebBox is selected.
Er ror Th ere is a com mun ica tio n er ror bet wee n th e Po wer Red uce r Box
and the Sunny WebBox. There is communication with at least one connected Sunny WebBox.
Error There is no configured ripple control signal.
Updating the Device Status
Automatic update of the page content
The page content is automatically updated every 30 seconds.
You can update the device status manually:
1. Select "Status" in the main menu.
2. Select [Refresh].

5.7 Events Page

All events of the Power Reducer Box, such as change to status or communication error, are logged and displayed on the "Events" page. All events are saved in the internal memory. Once the internal memory has reached its capacity, the oldest events will be overwritten. In addition you can download events in CSV format as well as save events to an SD card.
24 REDUCERBOX-BA-en-16 User Manual
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