SMA METER BOX FOR SUNNY BACKUP User Manual
EN
Accessories for Backup Systems
METER BOX FOR SUNNY BACKUP
Installation Manual
METERBOXSBU-IA-en-40 | IMEN-MBSBU | Version 4.0
SMA Solar Technology AG Table of Contents
Table of Contents
1 Information on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Qualification of Skilled Workers. . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Scope of Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Meter Box for Sunny Backup . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1 Selecting the Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . 12
5.2 Mounting the Meter Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2.1 Mounting the Meter Box on the Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2.2 Mounting the Meter Box on Top-hat Rail . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.2.3 Mounting the Feed-through Adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1 Connection Area of the Meter Box. . . . . . . . . . . . . . . . . . . . . . 16
6.1.1 View of the Upper Enclosure Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1.2 View of the Lower Enclosure Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.2 Connection Area of the Feed-through Adapter. . . . . . . . . . . . . 17
6.3 Connecting the Reading Heads of the Energy Meters . . . . . . . 17
6.3.1 Cable Route for Connecting the Reading Heads . . . . . . . . . . . . . . . . . . . . . 17
6.3.2 Connecting the Reading Heads without the Extension Cords . . . . . . . . . . . . 19
6.3.3 Connecting the Reading Heads with the Extension Cords . . . . . . . . . . . . . . 21
6.4 Connecting the Communication . . . . . . . . . . . . . . . . . . . . . . . . 24
Installation Manual METERBOXSBU-IA-en-40 3
Table of Contents SMA Solar Technology AG
6.5 Supplying the Meter Box with Voltage . . . . . . . . . . . . . . . . . . . 26
6.5.1 Supplying the Meter Box with Voltage via the Plug-in
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.5.2 Supplying the Meter Box with Voltage via 2-pole Plug. . . . . . . . . . . . . . . . . 26
7 Commissioning the Meter Box . . . . . . . . . . . . . . . . . . . . . 27
8 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 29
9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
10 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
10.1 Removing the Meter Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
10.1.1 Removing the Meter Box from the Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
10.1.2 Removing the Meter Box from the Top-hat Rail. . . . . . . . . . . . . . . . . . . . . . . 33
10.2 Removing the Feed-through Adapter . . . . . . . . . . . . . . . . . . . . 34
10.3 Disposing of the Meter Box and Feed-through Adapter. . . . . . 35
11 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
12 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
13 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4 METERBOXSBU-IA-en-40 Installation Manual
SMA Solar Technology AG 1 Information on this Manual
1 Information on this Manual
Validity
This manual is valid for the device type METERBOXSBU featuring the hardware version A2 and
higher.
Target Group
This manual is intended for skilled workers. Only qualified personnel are allowed to perform the tasks
set forth in this manual (see Section 2.2"Qualification of Skilled Workers",page8).
Additional Information
Additional information is available at www.SMA.de/en.
Document title Document type
Optimization of self-consumption Planning Guidelines
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.
Indicates information that is important for a specific topic or objective,
but is not safety-relevant.
☐ Indicates a requirement for meeting a specific goal.
☑ Desired result.
✖ A problem that could occur.
Installation Manual METERBOXSBU-IA-en-40 5
1 Information on this Manual SMA Solar Technology AG
Typography
Typography Usage Example
"Light"•Jacks
•LEDs
Bold •Elements to be
selected
•Elements to be
entered
• Connect the plug of the reading head
of the PV production meter to the
"PV Meter" jack of the Meter Box.
• In order to activate overnight
shutdown of the Sunny Backup when
the state of charge of the battery is too
low, set the "SlfCsmpStbyMod"
parameter to On.
Nomenclature
The following nomenclature is used in this manual:
Complete designation Short form in this manual
Meter Box for Sunny Backup Meter Box
Abbreviations
Abbreviation Designation Explanation
AC Alternating Current Alternating current
DC Direct Current Direct current
LED Light-Emitting Diode Light-emitting diode
PV Photovoltaics ‒
6 METERBOXSBU-IA-en-40 Installation Manual
SMA Solar Technology AG 2 Safety
METER BOX
Sunny Boy
Sunny Backup
system
Grid feed-in and
purchased electricity
meter
PV array
PV generation
meter
Loads
Power
distribution grid
2Safety
2.1 Intended Use
The Meter Box for Sunny Backup is an optional component of the Sunny Backup system and is used
for transmitting data to increase the self-consumption of the PV power.
Figure1: Operating the Meter Box in the Sunny Backup system
The Meter Box may only be operated in conjunction with the Sunny Backup 2200 and the
Sunny Backup 5000 from SMA Solar Technology AG.
Only compatible energy meters are allowed to be connected to the Meter Box (for details, see
Planning Guidelines "Increased Self-Consumption Sunny Backup / Sunny Home Manager").
Op era te t he M ete r Box wit h th e fo llo win g re adi ng h ead from ED Jo chen Vogts: type "Infrarot Adapter
RS232/RJ10 MUC" with cable outlet 180° or cable outlet facing upwards.
Maintain the limiting values specified for the Meter Box voltage supply
(see Section 11"Technical Data",page36).
The Meter Box is suitable only for indoor installation.
Do not use the Meter Box for purposes other than described here. Alternative uses, modifications,
opening the Meter Box and installing component parts void the war ran ty c lai ms a nd o per ati on pe rmi t.
This document is part of the Meter Box.
• Read and follow the manual to ensure proper and optimum use of the Meter Box.
• Keep the manual in a convenient place for future reference.
Installation Manual METERBOXSBU-IA-en-40 7
2 Safety SMA Solar Technology AG
2.2 Qualification of Skilled Workers
The tasks described in this manual are intended for skilled workers only. Skilled workers must have the
following qualifications:
• Knowledge of how a backup system works and operates with an option for increasing
self-consumption
• 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 guidelines
• Knowledge of and adherence to this manual and all safety precautions
8 METERBOXSBU-IA-en-40 Installation Manual
SMA Solar Technology AG 3 Scope of Delivery
3Scope of Delivery
Check the delivery for completeness and any visible external damage. Contact your specialty retailer
if the delivery is incomplete or you find any damage.
Figure2: Components included in delivery
Item Quantity Designation
A1Meter Box
B 1 Plug-in power supply with attachments
C12-pole plug
D 1 RJ45 cable
E1Retainer*
F1Screw
G1 Screw anchor
H 1 Installation manual
J 1 Feed-through adapter**
K 2 Reading head**
L2Extension cord**
* Is attached to the rear side of the Meter Box upon delivery
** Optional
Installation Manual METERBOXSBU-IA-en-40 9
4 Product Description SMA Solar Technology AG
4 Product Description
4.1 Meter Box for Sunny Backup
The Meter Box for Sunny Backup is an optional component of the Sunny Backup system and is used
for transmitting data to increase the self-consumption of the PV power.
The reading heads on the PV production meter and grid feed-in and purchased electricity meter read
out data. The reading heads supply the Meter Box with this data. The Meter Box transmits this data
to the Sunny Backup. The Sunny Backup can regulate the charging and discharging of the battery for
increasing the self-consumption based on this data.
The Meter Box draws the electrical power required for the data transmission from a socket-outlet or
another alternative voltage source.
4.2 Type Label
The type label clearly identifies the Meter Box. The type label is on the right-hand side of the
enclosure.
Figure3: Layout of the type label
Position Designation Explanation
A Device-specific characteristics ‒
B Operating temperature Maximum operating temperature
C Serial No Serial number
D Type Device type
10 METERBOXSBU-IA-en-40 Installation Manual
SMA Solar Technology AG 4 Product Description
Symbols on the Type Label
Symbol Designation Explanation
Interior The Meter Box is suitable only for indoor operation.
CE marking The Meter Box complies with the requirements of the
applicable EC guidelines.
Installation Manual METERBOXSBU-IA-en-40 11
5 Mounting SMA Solar Technology AG
5Mounting
5.1 Selecting the Mounting Location
Requirements for the mounting location:
☐ Mounting takes place indoor.
☐ The mounting location is protected against dust, moisture and corrosive substances.
☐ The mounting location is in the vicinity of a socket-outlet or an alternative voltage source.
Requirements for the cable routes:
☐ The cable route between the mounting location of the Meter Box, the mounting locations of the
Sunny Backup and the Automatic Switch Box is at maximum 20 m.
☐ Every cable route leading from the Meter Box to an energy meter is at maximum 2 m in length.
Observe minimum clearances:
Figure4: Minimum clearances to be observed
12 METERBOXSBU-IA-en-40 Installation Manual
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