Refu sol 40K User manual

Installation and Operating Manual
REFUsol 40K / 46K-M
English
REFU Elektronik GmbH No. 982017, ersion 022019-06
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2 REFUsol 40K / 46K-M REFU Elektronik GmbH
Copyright
© REFU Elektronik GmbH. All rights reserved.
This manual and the information included therein are the property of REFU Elektronik GmbH.
No part of this manual is to be reproduced or copied without the express written permission of REFU
Elektronik GmbH. Any unauthorized use of this manual is strictly forbidden.
Changes may be made to specifications, descriptions and delivery information.
Publisher
REFU Elektronik GmbH, Marktstraße 185, D-72793 Pfullingen
Trademarks
REFUsol is a registered trademark.
All other trademarks or registered trademarks are the property of their respective owners.
Feedback from Customers
If you have any questions or comments regarding this manual, please contact: [email protected].
Disclaimer and Limitation of Liability
REFU Elektronik GmbH assumes no liability in the event of damage as a consequence of the failure to
observe the warning instructions in these operating instructions or of improper usage.
The operating, maintenance and safety instructions are to be read carefully prior to installation and
commissioning.
The installation, commissioning and safety-related check must be undertaken by a qualified electrician.
Error-free and safe operation of the device requires proper and professional transport, storage, assembly,
and installation, as well as careful operation and maintenance.
Only accessories and spare parts approved by the manufacturer are permitted.
Technical modifications to the device are not permitted.
Adherence to the safety regulations and provisions of the country in which the inverter will be used are to be
observed.
For European countries, the valid EU guidelines are to be observed when using the inverter.
The environmental conditions, technical calculation data and connection conditions of the grid operator
given in the product documentation must be upheld.
The technical data, calculation, connection and installation conditions are to be derived from the product
documentation and must be observed under all circumstances.
No liability is assumed for damages in connection with force majeure and disaster situations.
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REFU Elektronik GmbH REFUsol 40K / 46K-M 3
Table of Contents
Copyright ............................................................................................................................................................... 2
Publisher ............................................................................................................................................................... 2
Trademarks ........................................................................................................................................................... 2
Feedback from Customers ................................................................................................................................... 2
Disclaimer and Limitation of Liability .................................................................................................................. 2
1 About this Installation and Operating Manual 6
1.1 Symbols and Markup ............................................................................................................................... 6
1.2 Warning Notices ....................................................................................................................................... 7
1.2.1 Layout of a Warning Notice ................................................................................................................. 7
1.2.2 Categories of Warning Notices ........................................................................................................... 7
1.3 Information ............................................................................................................................................... 7
2 Safety Information 8
2.1 Designated Use ........................................................................................................................................ 8
2.2 Qualification of Personnel ....................................................................................................................... 8
2.3 Dangers Arising from Misuse ................................................................................................................. 9
2.4 Protection against Contact with Electrical Parts ................................................................................. 10
2.5 Protection against Magnetic and Electromagnetic Fields during Operation and Assembly ............. 10
2.6 Protection against Contact with Hot Parts ........................................................................................... 11
2.7 Protection during Handling and Assembly ........................................................................................... 11
2.8 Please Note Before Starting Up ............................................................................................................ 12
2.9 Additional Symbols and Warning Notices on the Inverter ................................................................... 13
3 Description of Device 14
3.1 Operating Mode ...................................................................................................................................... 14
3.2 Infastructure Requirements.................................................................................................................. 14
3.3 Features of REFUsol 40K / 46K-M ...................................................................................................... 15
3.4 External Dimensions ............................................................................................................................. 16
3.5 Block Diagram ....................................................................................................................................... 17
3.6 Control Panel ......................................................................................................................................... 17
3.7 Internal Data Logger.............................................................................................................................. 18
4 Installation 19
4.1 Assembly Site Requirements ................................................................................................................ 19
4.2 Transport ................................................................................................................................................ 20
4.3 Storage ................................................................................................................................................... 20
4.4 Check delivery ........................................................................................................................................ 21
4.5 Unpacking the Device ............................................................................................................................ 21
4.6 Installation ............................................................................................................................................. 23
4.7 Device Connectors ................................................................................................................................. 25
4.8 Grounding ............................................................................................................................................... 26
4.9 Residual Current Protection ................................................................................................................. 26
4.10 AC Grid Connection ................................................................................................................................ 26
4.11 Grid Line Impedance .............................................................................................................................. 27

4 REFUsol 40K / 46K-M REFU Elektronik GmbH
4.12 DC Connection of the Solar Generator ................................................................................................. 28
4.13 Phoenix T-LOX Knee Lever Connection ................................................................................................ 30
4.14 Interface Port RS485 ............................................................................................................................. 31
4.15 Ethernet Interface Connection .............................................................................................................. 32
5 Commissioning 33
5.1 Switching on the Device at Initial Start-up ........................................................................................... 33
5.2 Switching on the Device after Replacement ........................................................................................ 34
5.3 Disconnecting Device Power ................................................................................................................. 35
5.4 Setting the Country Code and the Menu Language ............................................................................. 35
5.4.1 Set Country Code/Grid Guideline ...................................................................................................... 36
5.4.2 Accepting the Country Code .............................................................................................................. 36
5.5 Device Start ............................................................................................................................................ 37
5.6 Control Panel ......................................................................................................................................... 38
5.7 Basic Screen .......................................................................................................................................... 38
5.8 Graphical Display ................................................................................................................................... 39
5.9 Energy Yield Data Display ...................................................................................................................... 39
5.10 Standardized Energy Yield Data Display ............................................................................................... 40
5.10.1 Input of Standardized Data ........................................................................................................... 40
5.11 Menu Structure ...................................................................................................................................... 41
6 Configuration 42
6.1 Changing the Menu Language .............................................................................................................. 42
6.2 Limitation of the Power Output ............................................................................................................. 42
6.3 Monitoring with REFUlog ...................................................................................................................... 43
6.4 REFUset – PC Configuration Tool ......................................................................................................... 43
6.5 Communication via Ethernet ................................................................................................................. 44
6.5.1 Automatic Setting via DHCP .............................................................................................................. 44
6.5.2 Manual Setting ................................................................................................................................... 44
6.6 Communication via RS485 ..................................................................................................................... 45
6.7 Portal Monitoring ................................................................................................................................... 45
6.8 Sending Config ....................................................................................................................................... 46
6.9 Portal Test Function .............................................................................................................................. 46
7 Troubleshooting 47
7.1 Self-Test – Error Message .................................................................................................................... 47
7.2 Transient Failure ................................................................................................................................... 47
7.3 Faults ...................................................................................................................................................... 47
7.4 Fault Acknowledgement ........................................................................................................................ 47
7.5 List of Error Messages .......................................................................................................................... 48
8 Options 53
8.1 Irradiation and Temperature Sensor .................................................................................................... 53
8.1.1 Inverter Sensor Interface .................................................................................................................. 53
8.1.2 Sensor Type Si-13TC-T-K Cable ....................................................................................................... 53
8.1.3 Assembling of the Sensor Plug ......................................................................................................... 54

REFU Elektronik GmbH REFUsol 40K / 46K-M 5
8.1.4 Connection of the Sensor at the Solar Inverter ............................................................................... 54
8.1.5 Configuration ..................................................................................................................................... 55
8.2 External Turn Off Signal ........................................................................................................................ 56
8.2.1 Overview ............................................................................................................................................. 56
8.2.2 Function .............................................................................................................................................. 56
8.2.3 Configurations.................................................................................................................................... 57
8.2.4 Configuration ..................................................................................................................................... 58
9 Maintenance 59
9.1 Maintain the Inverter ............................................................................................................................. 59
10 Decommissioning 60
10.1 Remove Inverter ..................................................................................................................................... 60
10.2 Package Inverter .................................................................................................................................... 60
10.3 Disposal .................................................................................................................................................. 60
11 Technical data 61
11.1 Inverter ................................................................................................................................................... 61
11.2 Temperature-Derating .......................................................................................................................... 63
11.2.1 Temperature-Derating REFUsol 40K ........................................................................................... 63
11.2.2 Temperature-Derating REFUsol 46K-M .................................................................................... 63
12 Certificates 64
13 Contact 65
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6 REFUsol 40K / 46K-M REFU Elektronik GmbH
1About this Installation and Operating Manual
These operating instructions form part of the product.
Read the Installation and Operating Manual carefully before installing and using the product.
Keep the operating instructions readily available with the device for the entire service life of the
product.
Provide all future users of the device access to the operating instructions.
1.1 Symbols and Markup
Prerequisite
One-step instruction
1. Multiple-step instruction
•
Bulleted list
Highlighting Highlighting within a text
Result

REFU Elektronik GmbH REFUsol 40K / 46K-M 7
1.2 Warning Notices
1.2.1 Layout of a Warning Notice
SIGNALWORD / WARNING INSTRUCTIONS CATEGORY
Type and source of danger
Consequences if the warning is not observed
 Required action to avoid the risk
1.2.2 Categories of Warning Notices
DANGER
Leads directly to death or serious personal injury if ignored.
Follow the warnings to avoid death or serious injury!
WARNING
May result in death or serious personal injury if ignored.
Follow the warnings to avoid serious injuries!
CAUTION
May cause minor personal injury if ignored.
Follow the warnings to avoid injury!
NOTICE
Can lead to property damage if ignored.
Follow the warnings to avoid damage or destruction of the product!
This symbol represent important notes concerning potential harm to people, this
unit, or associated equipment.
1.3 Information
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Note:
A notice describes information which is important for the optimum and cost-
effective operation of the equipment.

8 REFUsol 40K / 46K-M REFU Elektronik GmbH
2Safety Information
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2.1 Designated Use
The REFUsol 40K / 46K-M inverter, also referred to in these operating instructions as the inverter, is a
solar inverter, which transforms the direct current generated by the P generator (photovoltaic modules)
into alternating current and feeds this into the power supply network.
The 40K is connected as a transformerless inverter directly to the low voltage supply network.
The connection of the 46K-M is connected via an isolating transformer to the medium-voltage supply
network.
The inverter has been constructed according to the current state of technology and in line with the rules of
technical safety.
Both inverters meet the requirements of degree of protection IP65 and can be used indoors and outdoors.
An agreement of the network operator for connection and operation of the inverter for low voltage network
or medium voltage network must be present.
The technical design of the network connection, the required additional electrical equipment and to the
applicable connection and installation conditions should be clarified in this regard in advance.
Any other use is not considered to be a designated use. The manufacturer accepts no liability for any damage
resulting from this.
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2.2 Qualification of Personnel
Target group for these instructions are professionals who can assess the assigned tasks due to their
professional training, knowledge and experience as well as knowledge of the relevant provisions and
recognize possible dangers.
Electrical work must only be carried out by qualified electricians.
Only suitably trained and qualified personnel are allowed to work on this inverter. Personnel are regarded as
being qualified if they are sufficiently familiar with the assembly, installation, and operation of the product as
well as with all warnings and safety measures set out in these operating instructions.
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REFU Elektronik GmbH REFUsol 40K / 46K-M 9
2.3 Dangers Arising from Misuse
DANGER
Danger to life from electric shock

Device may only be installed and serviced by qualified specialist technical
personnel.
Only class A modules according to IEC 61730 must be used.
The P generator must be free of earth potential.
The P generator must be designed in accordance with the technical data of
the inverter.
Every power supply line must be equipped with an appropriate AC-
disconnecting device.
A consumer must never be switched betw
een an inverter and line protection
switch.
Access to the shutdown mechanism must always be free.
Installation and commissioning must be carried out properly.
DANGER
Danger to life from electric shock
After the device has been switched off, the interior may still contain life-
threatening voltage
Do not open inverter.
Discharge time is at least 15 minutes.
DANGER
Danger to life from high discharge current

It is essential to ensure an earthing connection has been established prior to
connection to the supply current circuit.
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10 REFUsol 40K / 46K-M REFU Elektronik GmbH
2.4 Protection against Contact with Electrical Parts
DANGER
Danger to life, danger of injury due to high electrical voltage
Installation of the inverter must only be carried out by trained
specialist
personnel. In addition, the installer must be accredited by the
responsible
utility company.
General assembly and safety stipulations relating to working
on high current
facilities must be followed.

Before switching on, a check must be made to ensure that the plugs are firmly
in place (locked).

Before plugging or unplugging the DC plug, always disconnect the connection
to the P generator.

The feeder must be isolated and secured against being switched on again
before working at the AC grid.
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2.5 Protection against Magnetic and Electromagnetic Fields during Operation and
Assembly
Magnetic and electromagnetic fields found in the immediate vicinity of live conductors can pose a serious
risk to persons with cardiac pacemakers, metallic implants and hearing aids.
DANGER
Danger to health for persons with pace-makers, metallic implants, and hearing
aids in direct proximity to electrical equipment

Persons with cardiac pacemakers and metallic implants may not enter areas
in which electrical devices and parts are being assembled, operated or
commissioned.
Should people wearing cardiac pacemakers need to enter such
areas, the
decision as to whether this is permitted is to be made by a doctor beforehand.
Immunity from interference of cardiac pacemakers that have already been
implanted or will be in future varies greatly, meaning that there are no
generally applicable rules in this respect.

Persons with metal implants or metal splinters, as well as those with hearing
aids, must ask a doctor before entering such areas, as impairments to health
are to be expected.
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