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Summary of Contents for REFU REFUsol 100K
- Page 1 Operating manual REFUsol 100K Solar Inverter Product | REFUsol 100K Document No./Issue | 982059/02 Issue Date | 2020-11 Languages | English...
- Page 2 Copyright Publisher © REFU Elektronik GmbH REFU Elektronik GmbH The reproduction, distribution and utilization of this Marktstraße 185 document as well as the communication of its contents 72793 Pfullingen, GERMANY ✆ +49 7121 4332 0 to others without express authorization is prohibited.
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Page 3: Table Of Contents
Checking String Fuses ........24 ConnectionBox Central/Decentral ....10 Installing the Surge Protection Devices Components of the Decentral ConnectionBox11 SPD (optional) ..........25 Components of the Central ConnectionBox ...11 4.10 Communication Connections ......25 Device Size and Distances.......12 REFUsol 100K 982059/02 2020-11... - Page 4 Before Startup ..........33 Troubleshooting ........51 Startup .............33 11.1 Error List............51 Configuring Inverters with the Mobile App REFUset........35 Configuring Inverters with the PC Software REFUset........36 REFUlog – Monitoring portal....37 Technical Data ......... 38 PowerUnit ............38 REFUsol 100K 982059/02 2020-11...
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Page 5: About This Manual
This manual contains basic information, to assem- This manual applies to the following products: ble the product safely and properly, to transport, to put ∘ REFUsol 100K Solar Inverter into operation and to operate. ∘ REFUsol Decentral ConnectionBox ▷ Read this manual completely and in particular the ∘... -
Page 6: Symbols
Numbered action instruction that is to be exe- cuted in the order listed. ➪ Result of the action instruction..> ... Menu sequence in a software that is to be clicked one after the other. About this Manual REFUsol 100K Presentation of Information 982059/02 2020-11... -
Page 7: Safety And Responsibility
Rules for Safe Installation and Operation ∘ Do not attempt to install or operate the product without proper training. ∘ Ground the product properly. REFUsol 100K Safety and Responsibility 982059/02 Safety Guidelines 2020-11... -
Page 8: Symbols And Warnings On The Product
5 Ground before use vice's susceptibility 6 Warning of electrical voltage on to electrostatic dis- AC and DC side. All strings on charge the DC side are live Safety and Responsibility REFUsol 100K Symbols and Warnings on the Product 982059/02 2020-11... -
Page 9: Designated Use
▷ Only use products in technically perfect condition. The REFUsol 100K is only intended for use with the ▷ Observe all notes on the product. corresponding central or decentral ConnectionBox. -
Page 10: Five Safety Rules When Working On Electrical Systems
▷ Check that there is no voltage (DC and AC). ▷ Carry out earthing and short-circuiting. ▷ Provide protection against adjacent live parts. Central Decentral Fig. 3: Available variants: central and decentral Technical Description REFUsol 100K Five Safety Rules When Working on Electrical Systems 982059/02 2020-11... -
Page 11: Components Of The Decentral Connectionbox11
DC cable gland Communica- Device glands tion cable holder Fig. 5: Components of the central ConnectionBox gland AC cable DC cable bushing grommet Fig. 4: Components of the decentral ConnectionBox REFUsol 100K Technical Description 982059/02 Components of the Decentral ConnectionBox 2020-11... -
Page 12: Device Size And Distances
Device Size and Distances 400 mm (16 in) 400 mm (16 in) 400 mm (16 in) 400 mm Fig. 7: Installation site: distances/free space (16 in) Fig. 6: Installation site: distances/free space Technical Description REFUsol 100K Device Size and Distances 982059/02 2020-11... -
Page 13: Mounting Location
(7 in) min. 10° Mounting Location 400 mm 300 mm (16 in) (12 in) Fig. 8: Vertical and horizontal installation (decentral) Fig. 10: Installation recommendation for protection against direct sunlight and rain REFUsol 100K Technical Description 982059/02 Mounting Location 2020-11... -
Page 14: Dimensions
760 mm Functionality of the Inverter Fig. 11: Dimensions inverter with decentral ConnectionBox The REFUsol 100K converts the DC voltage generated by the photovoltaic modules into AC voltage and feeds it into the low or medium voltage grid. Technical Description... -
Page 15: Requirements For The Infrastructure
The following points are to be considered when 1 Photovoltaik (PV) modules planning the infrastructure: 2 Solar string combiner box ∘ The REFUsol 100K can feed into the low-voltage grid 3 Photovoltaic inverter and the medium-voltage grid. 4 AC protection (fuse switch disconnector or circuit breaker) ∘... -
Page 16: Installation
If it is not possible to take protective measures, do not tilt the inverter forward or open the connection box. Installation REFUsol 100K General Warnings 982059/02 2020-11... -
Page 17: Auxiliary Means And Tools
∘ Lockout-tagout kit the 5 safety rules (see chapter 2.7). ∘ Voltage tester ∘ Spirit level Unpacking the ConnectionBox ▷ Open the packaging and remove the ConnectionBox with the help of two people. REFUsol 100K Installation 982059/02 Auxiliary Means and Tools 2020-11... -
Page 18: Mounting The Connectionbox
8 mm from the wing. mounting surface. 4. Hook the ConnectionBox into the two upper screws and press it against the wall. 5. Screw the lower screws into the dowels. 6. Tighten all screws. Installation REFUsol 100K Mounting the ConnectionBox 982059/02 2020-11... -
Page 19: Mounting The Connectionbox Horizontally
2 x cable lugs DIN 46235 tom and hook it into the two lower screws. Cable lug to DIN 46234 10 … 240 mm² 6 … 150 mm² REFUsol 100K Installation 982059/02 Wiring DC and AC Cables (Central ConnectionBox) 2020-11... -
Page 20: Wiring Ac Cables (Decentral Connectionbox)
5. Tighten the union nut of the cable gland to ensure tightness and strain relief. 6. Connect the potential equalization conductor with ring cable lug to the PE threaded bolt (M8). Fig. 16: AC connection area: Cable grommet Installation REFUsol 100K Wiring AC Cables (Decentral ConnectionBox) 982059/02 2020-11... - Page 21 240 mm²) of the AC cables with a tightening torque 5. Check the sealing of the cable grommet. of 14 Nm. 6. First connect the protective conductor (PEN). REFUsol 100K Installation 982059/02 Wiring AC Cables (Decentral ConnectionBox) 2020-11...
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Page 22: Wiring Dc Cables (Decentral Connectionbox)
10.Mount the strain relief of the AC cables. 11.Install a protective cover onthe ConnectionBox if the PowerUnit is not installed immediately. Fig. 19: Key rotation for accessing DC connections and fuses Installation REFUsol 100K Wiring DC Cables (Decentral ConnectionBox) 982059/02 2020-11... - Page 23 4. Insert the potential equalization conductor and DC cables individually through the resulting holes. Ensure tightness and strain relief. 5. Connect the potential equalization conductor with ring cable lug to the PE threaded bolt (M8). REFUsol 100K Installation 982059/02 Wiring DC Cables (Decentral ConnectionBox) 2020-11...
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Page 24: Checking String Fuses
▸ Pull the fuse cautiously out of the fuse holder in order 9. Check the tightness of all cables. not to damage them. Try to pull one side, then the other side to reduce the force. Installation REFUsol 100K Checking String Fuses 982059/02 2020-11... -
Page 25: Installing The Surge Protection Devices Spd (Optional)
Installing the Surge Protection Devices 4.10 Communication Connections SPD (optional) The REFUsol 100K is equipped with RS485 and Ether- net communication ports for an easy integration into SPD DC monitoring and control systems. SPD AC The RS485 and Ethernet (100BaseT) is mapped on the same RJ45 connectors (RS485/LAN 1...2), located... -
Page 26: Connect Rs485/Lan
∘ The maximum length for the Ethernet bus is 100 m bottom of ConnectionBox, and then connected to between each two inverters. the PowerUnits interfaces: ∘ The maximum total length for the RS485 bus is typ- ically up to 1 000 m. Installation REFUsol 100K Connect RS485/LAN 982059/02 2020-11... -
Page 27: Rj45 Connector Cabling
RS485 signals to this equipment. ▸ It is recommended to protect communication lines with Tab. 5: Pin assignment external surge protection devices against overvoltage caused by lightning. Ethernet TX+ TX- RX+ RS485 Data+ Data- Ref+ Ref- REFUsol 100K Installation 982059/02 RJ45 Connector Cabling 2020-11... -
Page 28: Setting Up The Communication
Protocol types switch or gateway. Protocol Type ✅ If you change the mode to manual, you have to REFU USS protocol (preset) assign an unique IP address, net mask, standard (not used) gateway and optionally the DNS server during the Meteocontrol USS REFUset commissioning wizard. -
Page 29: Ethernet Direct Connection
The connection for the remote off signal is located on the adapter board at Fig. 29: Wiring and pin assignment for the remote off signal terminal X5. REFUsol 100K Installation 982059/02 Connect Remote Off Signal (DRM 0) -
Page 30: Testing Electrical Safety
PowerUnit stands stable on the device holder. ⟇ If applicable, carefully cut the packaging completely with a cutter knife. Please note that this means that the packaging can no longer be reused. Installation REFUsol 100K Testing Electrical Safety 982059/02 2020-11... -
Page 31: Hooking In The Powerunit
ConnectionBox as seen in 4.17 Hooking in the PowerUnit figure 32. Ensure following conditions prior to hooking in the PowerUnit: REFUsol 100K Installation 982059/02 Hooking in the PowerUnit 2020-11... -
Page 32: Connecting Ac, Dc And Pen
Fig. 33: Brace the hydraulic rod in the recess of the ✅ AC switch is turned off. ConnectionBox when mounted horizontally ➪ Further assembly can be continued by one person. Installation REFUsol 100K Connecting AC, DC and PEN 982059/02 2020-11... -
Page 33: Closing And Fixing The Powerunit
(X6) to the digital input of the ▷ Close AC switch (if present). PowerUnit (Digital Input/DRM 0). ▷ Close DC switch. d)Make sure that the plugs are engaged. REFUsol 100K Commissioning 982059/02 Closing and Fixing the PowerUnit 2020-11... - Page 34 Fast flashing: DC power not sufficient 3. Sufficient PV voltage and power. Slow flashing: DC voltage is too high or too 4. REFUsol 100K start to export power to the public grid. Off: No DC voltage GRID indicator On: Grid is ok (feeding in if SOLAR is on and...
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Page 35: Configuring Inverters With The Mobile App Refuset
At the first start-up of the REFUsol 100K, REFUset will Tab. 11: Indicator and keys of the display panel show the initial inverter setup screen for these set- Indicator/Key Description tings: CLEAR key ▸ To acknowledge an error, press the key ∘... -
Page 36: Configuring Inverters With The Pc Software Refuset
✅ REFUset is installed on your mobile device. For extended settings, you will receive a personal REFUset is available via Apple's App Store for iOS password on request from the REFU Service. devices and Google‘s Play app for Android devices. Functions ∘... -
Page 37: Refulog - Monitoring Portal
REFUlog – Monitoring portal The REFUsol 100K inverter can be connected to the monitoring portal REFUlog using direct Ethernet con- nection to the internet, or via RS485 and the REFUcon- trol data-gateway. Once an internet connection is established, the inverter will automatically start to send data to REFU- log every 5 minutes. -
Page 38: Technical Data
Technical Data PowerUnit Tab. 12: Technical data REFUsol 100K DC DATA 83 kVA @ 380 VAC 88 kVA @ 400 VAC 100 kVA @ 460 VAC 100 kVA @ 480 VAC Operation mode 880P100.020 Art. No. 1 100 V DC max. voltage... - Page 39 Tab. 12: Technical data REFUsol 100K DC DATA 85.5 kW 90.5 kW 102.5 kW 102.5 kW DC nominal power MPP tracker 1 Plus, 1 Minus: Connector with button activated coupling DC connection PowerUnit-to-ConnectionBox AC DATA 83.3 kVA 88 kVA 100 kVA...
- Page 40 Tab. 12: Technical data REFUsol 100K DC DATA 98.3 % 98.4 % 98.7 % 98.7 % Max. efficiency 97.9 % 98 % 98.5 % 98.5 % European efficiency < 1 W Night-time power loss 160 A, gG, U = 500 V...
- Page 41 4 LED's (DC status, AC status, Fault, Bluetooth ) / 2 Keys (Connect, Clear) Status display / keys ® 2 × ethernet daisy-chain / 2 × RS485, Bluetooth BLE, 1 x remote off signal Interfaces REFUsol 100K Technical Data 982059/02 PowerUnit 2020-11...
- Page 42 673 × 626 × 321 mm Dimensions PowerUnit W x H x D 69 kg Weight inverter CERTIFICATES All certificates are available at www.refu.com 2014/30/EU, 2014/35/EU EU directive IEC 62109-1, IEC 62109-2, IEC 62116, IEC 61727, IEC 61683, IEC 62477-1, Product IEC 61439, ETSI EN 300 328 V.2.1.1...
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Page 43: Connectionbox Variants
50 … 240 mm bolt terminals 50 … 150 mm 760 × 1007 × 166 mm 760 × 692 × 166 mm Dimensions W × H × D 40 kg 25 kg Weight REFUsol 100K Technical Data 982059/02 ConnectionBox Variants 2020-11... -
Page 44: Single Line Diagrams
Di g i t a l P o r t R S 4 8 5 / L A N 1 R S 4 8 5 / L A N 2 Fig. 37:Single line diagram PowerUnit Single Line Diagrams REFUsol 100K ConnectionBox Variants 982059/02... - Page 45 80 % 100 % Ambient temperature AC power DC Voltage [V] 620 V 750 V 880 V 620 V 700 V 880 V Fig. 39: Temperature derating curves Fig. 40: Efficiency curves REFUsol 100K Single Line Diagrams 982059/02 ConnectionBox Variants 2020-11...
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Page 46: Maintenance
The product can get hot during operation. do not tilt the inverter forward or open the ▸ Avoid contact during operation. connection box. ▸ Allow the product to cool down sufficiently before carrying out any work. Maintenance REFUsol 100K General Warnings 982059/02 2020-11... -
Page 47: Replacement
9. Use two cable ties to secure the supply, Ethernet 1. Loosen the 4 PowerUnit fixing screws. Make sure and sensor cables to the rear of the ConnectionBox. that the PowerUnit is pressed slightly in the direc- REFUsol 100K Maintenance 982059/02 Replacement... -
Page 48: Checking Or Replacing The Pv Fuses
✅ Electrical systems are disconnected according to the 5 safety rules. ✅ AC switch to the inverter is opened. Maintenance REFUsol 100K Replacement 982059/02 2020-11... -
Page 49: Replacing The Dc Cable Bushing (Decentral Connectionbox)
✅ Electrical systems are disconnected according to Checking the interior of the ConnectionBox for 5 years* the 5 safety rules. dust deposits, dirt, moisture and water ingress from the outside. REFUsol 100K Maintenance 982059/02 Periodicity of Maintenance 2020-11... -
Page 50: Disposal
Checking warning notices (stickers) and if nec- 12 months conforms to RoHS. essary replace the stickers ▷ REFU Elektronik GmbH takes the REFUsol 100K back Documenting the operating environment and 12 months completely. Please contact the REFU Service team! the device with a camera. -
Page 51: Troubleshooting
REFU Service. Relay Test Bad Comm1 The self-test of the safety relays detected a 70005 communication problem. Relay Test Bad Comm2 70006 Relay Test Bad Comm3 70007 Relay Test Bad Comm4 70008 REFUsol 100K Troubleshooting 982059/02 Error List 2020-11... - Page 52 ▸Check the installation of the inverter. solute exceedance of the set limit value. ▸Check PE connection. 90013 ▸Check for faulty cables (e.g. damaged insu- lation). ▸Check solar generator installation. Troubleshooting REFUsol 100K Error List 982059/02 2020-11...
- Page 53 ▸Update the device if a new firmware version Initialisation C1 The system initialization has not been com- 90020 exists. pleted successfully. Initialisation C0 ▸If the error persists, please contact REFU 90021 Service. SR parameter error The device parameterization was not loaded 90024 during system initialization.
- Page 54 ▸Deactivate the user lock by pressing the User lock active The user lock is active. 90052 "Clear" (REFUsol 100K) key for at least 5 s. ▸Measure the voltage of all three phases Overvoltage 2 The mean grid voltage is above the configured with REFUset and a True RMS meter.
- Page 55 ▸Download the correct firmware package LT Firmware The LT/safety processor firmware is defective. again from the manufacturer's website and 90059 restart the update. ▸If the error persists, please contact REFU Service. Update fault – No action necessary. 90061 Fault ride through...
- Page 56 ▸Do not run the inverter at full load at high IGBT overtemperature The temperature of the IGBT's exceeds the 9008A ambient temperatures. permissible limit value. Air overtemperature The temperature of the interior exceeds the 9008B permissible limit value. Troubleshooting REFUsol 100K Error List 982059/02 2020-11...
- Page 57 ▸Check the configured voltage limit and the Over Volt Safety The grid voltage exceeds the configured limit 90095 configured nominal voltage. value for the configured time. Safety Test Noti – No action necessary. 90096 REFUsol 100K Troubleshooting 982059/02 Error List 2020-11...
- Page 58 Error Code Message Description Instructions ▸Please contact REFU Service. Safety general There is a problem with the safety processor. 90097 Safey unknown 90098 Safety APP NOK 90099 Watchdog safety 9009A Safety not running 9009B Safety unknown state 9009C SafetyParamInit NOK...
- Page 59 Error Code Message Description Instructions ▸Please contact REFU Service. SafetyRelay 1 broken The safety relay L1 is jammed. 900A3 SafetyRelay 2 broken The safety relay L2 is jammed. 900A4 SafetyRelay 3 broken The safety relay L3 is jammed. 900A5 MainRelay 1 broken The safety relay L1 is jammed.
- Page 60 The hardware protection has detected an im- A0185 permissible overcurrent in L2 during the acti- vation phase. HW I L3 activation The hardware protection has detected an im- A0186 permissible overcurrent in L3 during the acti- vation phase. Troubleshooting REFUsol 100K Error List 982059/02 2020-11...
- Page 61 DC link before REFU Service. the activation phase. HW driver PreActiv The hardware protection has detected a prob- A018C lem in the circuit breaker driver before the ac- tivation phase. REFUsol 100K Troubleshooting 982059/02 Error List 2020-11...
- Page 62 A0192 ▸Open DC switch. process. ▸Open and close AC and DC switches. DCPrecharge NOK Temporary failure: The DC precharge is in- ▸If the error still occurs, contact REFU Ser- A0193 complete. vice. ▸ Contact REFU Service. DCPrecharge Temporary failure: The DC precharge is in-...
- Page 63 The unit is in a safe mode for a short time to prevent damage to property. DC part timeout Timeout in DC part component monitoring oc- No action necessary. ▸If the error still occurs, contact REFU Ser- A019A curred. vice. REFUsol 100K...
- Page 64 Troubleshooting REFUsol 100K Error List 982059/02 2020-11...
- Page 65 ✉ info@refu.com ✉ info@refu.com ✉ service.energy@refu.com ✉ service.energy@refu.com www.refu.com www.refu.com © REFU Elektronik GmbH The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages.
- Page 66 REFUsol 100K 982059/02 2020-11...
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