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REFU REFUsol 08K, Installation And Operating Manual

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REFU REFUsol 08K Installation And Operating Manual Download Page 42

 

 

42 

REFUsol 08K ... 23K 

REFU Elektronik GmbH 

6.3

 

Monitoring with REFUlog 

The REFUsol 08K ... 23K inverter can be connected to the monitoring portal REFUlog using direct Ethernet 
connection to the internet, or via RS485 and the REFUcontrol data-gateway. 

Once an internet connection is established, the inverter will automatically start to send data to REFUlog 
every 5 minutes. The sending interval can be changed with the configuration tool REFUset. 

To view the inverter data, open 

www.refu-log.com

 with your browser and login or register as a new user. 

You can use the activation code provided on the type label of the inverter to assign one or more inverter to a 
PV system. 

 

 

6.4

 

REFUset – PC Configuration Tool 

You can upgrade the firmware of the inverters and change country-specific parameters of the inverter with 
the PC Software REFUset. You can connect the PC with the inverters via Ethernet or USB using a RS485-USB 
converter. 

For extended settings, you will receive a personal password on request from the REFU Elektronik GmbH 
Service. 

Functions 

•

 

Firmware update 

•

 

Export of inverter data 

•

 

Feed-in conditions voltage and frequency 

•

 

Ramp starting time in the event of a grid error 

•

 

Average voltage monitoring 

•

 

Phase conductor voltage monitoring 

•

 

Frequency-dependent power reduction 

•

 

Actual voltage monitoring (rapid disconnection) 

•

 

Actual frequency monitoring 

•

 

Reactive power (cos φ) 

Summary of Contents for REFUsol 08K

Page 1: ...Installation and Operating Manual REFUsol 08K 23K English REFU Elektronik GmbH No 982030 Version 02 2018 06 ...

Page 2: ...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...

Page 3: ...trical Parts 10 2 5 Protection against Contact with Hot Parts 10 2 6 Protection during Handling and Assembly 11 2 7 Please Note Before Starting Up 11 2 8 Additional Symbols and Warning Notices on the Inverter 12 3 Description of Device 13 3 1 Infastructure Requirements 13 3 2 Features of REFUsol 08K 23K 14 3 3 External Dimensions 14 3 4 Block Diagram 15 3 4 1 REFUsol 08K 23K 15 3 5 DC Connection 1...

Page 4: ...ng the Country Code 36 5 3 Device Start 36 5 4 Control Panel 37 5 5 Basic Screen 37 5 6 Graphical Display 38 5 7 Energy Yield Data Display 38 5 8 Standardized Energy Yield Data Display 38 5 9 Input of Standardized Data 39 5 10 Menu Structure 39 6 Configuration 41 6 1 Changing the Menu Language 41 6 2 Limitation of the Power Output 41 6 3 Monitoring with REFUlog 42 6 4 REFUset PC Configuration Tool...

Page 5: ...olar Inverter 53 8 1 5 Configuration 54 8 2 External Turn Off Signal 54 8 2 1 Overview 54 8 2 2 Function 55 8 2 3 Connections of the External Stop Signal DRM 0 56 8 2 4 Configuration of the External Stop Signal DRM 0 57 8 2 5 Attach the DRM 0 Sticker 57 9 Maintenance 58 9 1 Maintain the Inverter 58 10 Decommissioning 59 10 1 Remove Inverter 59 10 2 Disposal 60 11 Technical data 61 11 1 Inverter 61...

Page 6: ...step instruction 1 Multiple step instruction Bulleted list Highlighting Highlighting within a text Result 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...

Page 7: ... 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 Note A notice describes information which is important for the optimum and cost effective operation of the equipment ...

Page 8: ...d can be used indoors and outdoors Any other use is not considered to be a designated use The manufacturer accepts no liability for damages resulting from this 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...

Page 9: ...DC switch Every power supply line must be equipped with an appropriate AC disconnecting device A consumer must never be switched between 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...

Page 10: ...eck 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 PV generator The feeder must be isolated and secured against being switched on again before working at the AC grid 2 5 Protection against Contact with Hot Parts CAUTION Danger of burns caused by hot surfaces on housings At an ambient temperature of ...

Page 11: ... the manufacturer Adherence must be ensured to the prescriptions and stipulations regarding safety of the country in which the inverter is to be used The ambient conditions stated in the product documentation must be observed Starting up is prohibited until the entire system meets the national regulations and safety rules regarding use Operation is only permitted with adherence to the national EMC...

Page 12: ...e Hot surface The housing can get hot during use This symbol advises that the user handbook must be read before the device is used The inverter must be earthed before use Before beginning of work switch unit free of voltage Warning of electrical voltage on DC and AC side All solar strings on the DC side are at voltage Discharging time of the device longer than 15 minutes ...

Page 13: ...nternal potential isolation If the inverters are connected with the medium voltage grid it must be operated with electrically isolating transformers No other equipment may be connected between the transformer and inverters The following standards and technical regulations are also to be observed IEC 60364 4 41 Protection Protection against electric shock IEC 60364 4 43 Protection for safety Protec...

Page 14: ...s are exclusively made with lockable connectors The device features an integrated DC isolating switch according to EN 60947 3 which reduces the overall installation work The inverter provides the usual communication interfaces RS485 and Ethernet An illuminated graphical display shows the development of the feed in power and other operating data in a clearly arranged manner An 8 key control panel b...

Page 15: ...onnection Fig 3 Connection diagram 3 6 Control Panel The graphical user interface which is integrated on the front of the device and comprises 128 x 64 pixels can be used to display the operation data such as the feed in power or yield The parameters required are selected and entered on the 8 key control panel The control panel is illuminated when a key is pressed and turns dark automatically ...

Page 16: ...o be simultaneously recorded in the form of parameters If the storage capacity is full the oldest data is overwritten With the default setting on delivery the data logger logs 16 measuring channels which can be displayed an analyzed by REFUlog Recording cycle Storage time 1 minute 2 5 years 2 minutes 5 years 5 minutes 12 5 years 10 minutes 25 years Status LEDs ...

Page 17: ...he devices must be ensured The following requirements of the installation site must be upheld Only vertical installation is permitted as otherwise the cooling of the device cannot be guaranteed convection cooling Do not subject the inverter to any direct sunlight A fixed wall or a metal construction is necessary for installation The weight of an inverter is 38 4 kg Relevant construction regulation...

Page 18: ...rted under clean and dry conditions if possible in their original packaging The transport temperature must be between 25 70 C 13 158 F Permissible variations in temperature may not exceed 20 C 68 F per hour 4 3 Storage The devices must be stored in clean and dry premises if possible in their original packaging The storage temperature must be in the range of 25 55 C 13 131 F Permissible variations ...

Page 19: ... orientation poses a risk of ingress Only unpack the device when it is to be installed Failure to do so voids your warranty The inverters are heaviest at the top They are therefore packed upside down to facilitate transport You will therefore see the bottom side of the device connectors after having opened the package Take the device at the two holding grips that are visible on the side and remove...

Page 20: ...the cover to hold the device Only use the four holding grips to move the device NOTICE Danger of damage to property When designing the attachment of the wall mounting plate take the product weight of 38 4 kg into account Do not open device Opening the device voids the warranty The inverter is mounted using the wall mounting plate which is included in the scope of delivery ...

Page 21: ...ecure the inverter in these nuts using the enclosed screws M5x20 As an alternative you can also use a padlock shackle 4 mm in diameter to protect the inverter against theft The design of the wall bracket ensures that the inverter is automatically centered in this bracket 5 In order to avoid adhesive residue on the display remove the display protection immediately after installation 61 4 7 Device c...

Page 22: ...power supply line In addition ensure that the ground wire is placed as far away from and not directly in parallel to the power supply line The maximum permissible torque for this screw is 10 Nm 7 ft lbs Fig 9 Grounding bolt 4 9 Residual Current Protection 4 10 Power Connection DANGER Risk of electric shock and fire caused by high discharge current Before connecting the device to the supply circuit...

Page 23: ...dards are to be upheld The following specifications of the local grid operator are to be observed Pertinent technical and special regulations Installation approval must be in place Check the line voltage It must be within the technical data for that device If the line voltage is higher contact your local network operator The AC side must not be measured by inserting test probes into the AC plug be...

Page 24: ...t connection The lateral forces must not exceed 250 N The seal is run through a hole in the screw below the screw head of the adapter housing and the opening provided and attached to the housing of the device The following table shows the maximum wire lengths upon use of a REFUsol 08K 23K depending on the cable cross section with a voltage drop below 1 Line cross section 6 0 mm 10 0 mm2 16 0 mm2 M...

Page 25: ...REFU Elektronik GmbH REFUsol 08K 23K 25 Fig 11 Preparation of plug cable 3 Screw in plug 4 Note torque specification according to illustration Fig 12 Screw in plug 5 Determine diameter 6 Seal connection ...

Page 26: ...nductance can lead to increasing line impedances This can lead to voltage distortions and error messages with regards to Grid overvoltage long cable Increased operating noise of the inverters short cable To avoid these disadvantageous conditions twisted lines should be used for power supply if possible If laying of twisted lines is not possible the following requirements must be met for single cor...

Page 27: ...inverter automatically checks the insulation of the PV generator If the isolation is defective the inverter switches off automatically The inverter can only be started once the PV generator isolation error has been removed Be absolutely sure to verify proper polarity when connecting the PV strings Any inappropriate connection of individual strings may damage the PV generator Protect the connectors...

Page 28: ...gs so that destruction is prevented 4 13 1 DC Connection Please note the following information plug type cross section regarding the DC power cable Designation Type Art No PHOENIX CONTACT Art No Outer Diameter Cable Cross Section Connectors PV CM S 2 5 6 1774687 922006 5 8 mm 4 6 mm Connectors PV CF S 2 5 6 1774674 5 8 mm 4 6 mm PV C PROTECTION CAP 1785430 922007 If necessary the following photovo...

Page 29: ...manufacturer Only connect the connectors to other SUNCLIX connectors When connecting always observe the specifications for rated voltage and rated current The smallest mutual value is valid Protect the connector against moisture and dirt Do not submerge the connectors under water Do not lay the plug directly on the roofing Protect unplugged connectors with a protective cap e g PV C PROTECTION CAP ...

Page 30: ...7 1 Enter screwdriver as demonstrated in picture below 2 Leave screwdriver attached and separate bush and plug from one another Fig 15 Disconnect connector 4 13 2 3 Remove cable 1 Unscrew cable screwing 2 Enter screwdriver as demonstrated in picture below 3 Pry open connection and separate barrel and insert from one another 4 Open spring with screwdriver Remove cable ...

Page 31: ...mote monitoring system Portal Data Logger Park Control Ethernet RS485 RS485 Ref 4 4 3 3 2 2 4 4 3 3 2 4 Bus termination 1 3 2 2 4 3 2 Inverter 1 Inverter 2 Inverter n Fig 17 Standard interface When using this interface please note that each device using the bus requires a unique address The bus termination is made by means of wire jumpers on RS485 OUT to the last bus user inverter n Pin Signal Pin...

Page 32: ... sensor cables results in defects and malfunctions If inverters are connected in series a reversed RS485 can damage further connected inverters Make sure that each of the RS485 connection plugs is connected with the RS485 receptacle intended for it If the connectors are reversed correctly plug the RS485 connecting cables immediately 4 15 Ethernet Interface Connection The Ethernet interface support...

Page 33: ...erter 2 Inverter n Eth2 Eth3 Eth n Ethernet Ethernet Ethernet Fig 19 Ethernet interface NOTICE In order to ensure IP 65 protection the plug type mentioned above must be used Failure to observe this can lead to damage to the inverter and therefore void the warranty ...

Page 34: ...from being reactivated DANGER Risk of electric shock and fire caused by high discharge current Before connecting the device to the supply circuit establish a ground connection 5 1 Turning on the Device 1 Verify that the device is connected to line voltage If not insert the external power fuse or turn on the circuit breaker 2 Apply voltage by turning on the DC switch The inverter only starts if the...

Page 35: ...ement from the energy supplier We assume no liability for the consequences of an incorrectly set country code 5 2 1 Set Country Code Grid Guideline The following window appears on the display after initial switch on of the DC voltage and prompts you to set the country code You can choose from among the offered countries 1 Use the and keys to select the country code which is specific for your count...

Page 36: ...de is to be accepted then confirm with OK A restart then takes place ERROR and GROUND FAULT status LEDs flash red alternately 5 3 Device Start Solar modules are irradiated with sufficient sunlight Country code is set Time and date is set The following procedure follows Self test All status LEDs are lit for approx 6 seconds Check START status LED lights orange Activation START status LED lights ora...

Page 37: ... menu Navigation within the menu level previous menu next menu Function while parameters are edited digit to the left digit to the right decade jump Selection within the menu ESC Acknowledge failures and exit from menu level exit from input menu without entering data OK Confirm the selected menu next menu level and entered data 5 5 Basic Screen Fig 21 Operating mode display PAC 8260 W VAC 405 V VD...

Page 38: ... the development of the previous days Press the ESC key to return to the basic screen display 5 7 Energy Yield Data Display Press the arrow key to display the current yield data and the operating hours having currently elapsed Fig 23 Energy yield absolute display 5 8 Standardized Energy Yield Data Display Press the arrow key then the arrow key to display the development of standardized energy yiel...

Page 39: ...ct the digits after the point key Press the key to increment the selected digit by 1 key Press the key to decrement the selected digit by 1 Fig 25 Standardized data input display Press the OK key to apply the set value Press the ESC key to discard the value and display the previous normalized yield level Press the F1 key to display the menu 5 10 Menu Structure The menu structure serves as a suppor...

Page 40: ...al values Failure memory Configuration Device Information DC AC Sensors Country Power Languages Limitation PAC Communication Date Time Portal settings Overview Version number Country Current language Ethernet Activation Send configuration Portal Testfunction Ethernet RS485 Norm Factor F2 ...

Page 41: ...confirm The menu switches to the selected language The display is initially empty 8 Press ESC to return to the menu 6 2 Limitation of the Power Output Proceed as follows in order to limit the power output of the inverter 1 Using the F1 key select the menu item Configuration and confirm with the OK key 2 Select the sub menu PAC Limit and confirm with the OK key 3 Enter the invert power output as pe...

Page 42: ...ed on the type label of the inverter to assign one or more inverter to a PV system 6 4 REFUset PC Configuration Tool You can upgrade the firmware of the inverters and change country specific parameters of the inverter with the PC Software REFUset You can connect the PC with the inverters via Ethernet or USB using a RS485 USB converter For extended settings you will receive a personal password on r...

Page 43: ...n all values must be given by the responsible network administrator and individually set in each inverter 1 Navigate to Configuration Communication Ethernet IP address 2 Enter IPv4 address The IPv4 address is arbitrary but must be consistent throughout the subnet Default value 192 168 130 30 3 Press OK to confirm 4 Navigate to Configuration Communication Ethernet Subnet mask 5 Enter IPv4 mask The ...

Page 44: ...cannot be used address 0 is automatically set to address 1 5 Multimode USS Modbus RTU Sunspec in Multimode you cannot use USS address 0 and 2 Baud rate 57600 preset and recommended 115200 for short RS485 networks Parity even Handshake no Data bits 8 Stop bits 1 Protocol REFU USS protocol 6 7 Portal Monitoring To ensure the inverter sends data via Ethernet to the REFUlog monitoring portal the porta...

Page 45: ...order to recognise the inverter If you want to send it manually select the menu and set the parameter to 1 If the sending was successful the parameter will be set back to 0 automatically 6 9 Portal Test Function Menu Configuration Portal monitoring Portal Test On request of our service you can send a test data package to the portal Open the menu and select yes ...

Page 46: ...re occurs However the DC and AC voltages may still be available The corresponding fault message appears in the display The fault is indicated on the control panel by the red ERROR LED emitting steady light Fault messages are stored in the fault memory where they will remain even in the event of a power failure The fault memory can be called up via the display The last 100 faults are recorded in th...

Page 47: ...oosted DC voltage has dropped below the mains peak value 90010 DC link 5 The boosted DC link voltage is too high 90011 DC link 6 The DC link voltage is too high 90017 Communication LT Communication malfunction between power section and control and regulation unit The inverter will acknowledge the error automatically If problem occurs repeatedly contact Service 90018 Grid frequency LT Power section...

Page 48: ... read only Internal data can t be written anymore Please contact Service 90030 DC share too high The measured DC Part in AC current exceed the defined limit 90031 ETH link lost The Ethernet cable has been removed Check the Ethernet cable on the device and the receiver router switch for a correct fit If the cables are correctly connected and should the notification still be there please contact Ser...

Page 49: ...ult This notification can be ignored No measures necessary 90062 Fault ride through Grid instability which is handled with respect to the grid code standards A0013 PM isolation RCD SR The measured value of the residual currents are over the limits Measured value 150 mA Trip within 20 ms Measured value 60 mA Trip within 130 ms Measured value 30 mA Trip within 280 ms Check system isolation If you co...

Page 50: ...tion exceeded the limits residual current Limit values of 20 mA 130 mA 280 mA respectively Please contact Service A0116 R detect 0 Do nothing The inverter will acknowledge the error automatically If problem occurs repeatedly contact Service A0117 Isolation test unit Test isolation test is taking too long Please contact Service A0118 Voltage offset LT Offset adjustment values between power section ...

Page 51: ...ly voltage at the power stack is too low A0178 Temp Sensor KR LT checking open loop or short loop for temperature sensor cooler right A0179 Temp Sensor IL LT checking open loop or short loop for temperature sensor cooling interior left A017A Temp Sensor IR LT checking open loop or short loop for temperature sensor cooling interior right A017B Temp Sensor KL LT checking open loop or short loop for ...

Page 52: ...cting line 5 x 0 14 mm The line can be extended with a 5 x AWG 23 0 25 mm shielded line max 328 ft 100 m 8 1 1 Inverter Sensor Interface Fig 26 Connector M12 x 1 straight shielded pole arrangement male M12 5 pins A coded view of male connector side PHOENIX CONTACT designation SACC M12MS 5SC SH Inverter sensor pins Signal Pin 1 Supply voltage 24 VDC max 2 W Pin 2 Ground Pin 3 Signal Input 1 0 10 V ...

Page 53: ... 23K 53 8 1 3 Assembling of the Sensor Plug 0 16 0 31 0 6 ft lbs 2 ft lbs 0 79 AWG 26 20 0 47 1 3 0 39 8 1 4 Connection of the Sensor at the Solar Inverter Fig 27 Standard connection at a solar inverter not applicable at AFCI variant ...

Page 54: ...re visible within REFUlog portal The actual values of the sensor can be viewed in Actual values Sensor The data continues to be recorded with the data logger and can be viewed via REFUlog 8 2 External Turn Off Signal 8 2 1 Overview The REFUsol 08K 23K inverters have an internal grid protection relay and section switch Note The shield of the sensor line dotted line must be applied to PIN 2 and PIN ...

Page 55: ...dules 2 Solar Inverter 3 Three phase redundant section switch 4 Control line 5 Grid measurement 6 Grid protection device 7 Public grid 8 2 2 Function The internal section switches of the inverter can be controlled by an external signal At a signal voltage between 7 5 and 10 V the inverter feeds into the grid If the signal voltage falls below 7 5 V an error message will occur and the inverter will ...

Page 56: ... 2 3 Connections of the External Stop Signal DRM 0 Fig 29 Single external stop signal Fig 30 Redundant external stop signal does not apply to AFCI variant Fig 31 Single external stop signal with sensor connected does not apply to AFCI variant ...

Page 57: ...t the inverter display at Configuration External Signal It is also possible to perform the configuraton with REFUset This PC tool allows to define different voltage ranges and switch off times The inverter integrated grid protection can be deactivated if authorized by the grid operator DANGER Risk of electric shock and fire caused by high discharge current Before connecting the device to the suppl...

Page 58: ...em is maintenance free Periodically based on site conditions visual inspection of the cooling fins is recommended to identify any debris accumulation that could occur If found the debris must be removed to ensure that the convection cooling is not inhibited Cleaning with high pressure cleaners is prohibited Annually the DC switch has to be operated without electricity 5 times ...

Page 59: ...ice Opening the device voids the warranty NOTICE Danger of damage to property Do not use the cover to hold the device Only use the four holding grips to move the device Fig 32 Handles on the inverter 10 1 Remove Inverter 1 Deenergize the inverter completely 2 Remove all cables from the inverter 3 Loosen the screws M5x20 securing the inverter to the wall mounting bracket ...

Page 60: ...s according to the rules applicable in the country where the inverter is installed Do not dispose of the inverter with normal domestic waste The inverter conforms to RoHS That means that the device can be taken to municipal disposal sites for household appliances REFU Elektronik GmbH takes the inverter back completely Please contact the Service team ...

Page 61: ...parent output kVA 8 25 10 13 17 20 23 AC grid connection L1 L2 L3 N PE Rated power factor range 1 0 8i 0 8c Rated voltage AC V 400 460 Voltage range AC V 320 460 368 529 Rated frequency frequency range Hz 50 60 45 65 Max AC current A 867 3 x 12 3 x 16 3 x 21 3 x 29 2 Max AC current A 865 3 x 13 3 x 30 4 Max distortion factor THD 2 5 1 8 Max efficiency 98 1 98 2 98 3 Feed in starting at W 50 Intern...

Page 62: ... 3 integrated Protection Class IEC 62103 I Overvoltage protection EN 60664 1 DC II AC III GENERAL DATA Interfaces Ethernet RS485 Sensor Irradiation and Temperature Sensor external stop signal Dimensions W x H x D mm 535 x 601 x 277 Dimensions with packaging W x H x D mm 595 x 640 x 395 Device weight kg 38 4 Weight with packaging kg 43 5 Note derating of max DC voltage Amount over NN Max DC voltage...

Page 63: ...suring accuracy 5 of final value MODULE TEMPERATURE Measuring range 20 90 C 4 194 F Output signal 2 268 V T C 86 9 mV C Measuring accuracy 1 5 at 25 C 77 F Non linearity 0 5 C 32 9 F Max deviation 2 C 35 6 F PIN ASSIGNMENT Orange Measurement signal for insolation 0 to 10 V Red Supply voltage 12 24 VDC Black GND Brown Measurement signal for temperature 0 10 V Power supply Temperature and radiation ...

Page 64: ...60068 2 78 2001 EN 60529 1991 A1 2000 A2 2013 IEC 60364 7 712 2016 EMC Immunity EN 61000 6 1 2007 EN 61000 6 2 2005 EMC Emissions EN 61000 3 12 2011 EN 61000 3 11 2000 EN 61000 6 3 2011 EN 61000 6 4 2007 A1 2011 Grid Codes Guidelines AS NZS 4777 2 2015 AS 4777 3 2005 AS NZS 3100 2017 VDE AR N 4105 2011 BDEW Mittelspannungsrichtlinie medium voltage directive TR3 Rev 23 TR4 Rev 7 TR8 Rev 6 CEI 0 16 ...

Page 65: ...r technical problems to Service Hotline 49 0 7121 4332 333 Monday Thursday 8 am to 5 pm Friday 8 am to 4 pm Online Email service energy refu com Website www refu com You should have the following data at hand Exact description of the error with error code Device type Serial number Firmware version ...

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