Sofar HYD 5KTL-3PH User Manual
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Sofar HYD 5KTL-3PH User Manual

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HYD 5/6/8/10/15/20KTL-3PH USER MANUAL

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Summary of Contents for Sofar HYD 5KTL-3PH

  • Page 1 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL...

  • Page 3: Table Of Contents

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Table of Content 1 About this manual..................... 4 1.1 Copyright declaration ..................4 1.2 Structure of the manual ................. 4 1.3 Scope ........................4 1.4 Target group ....................... 5 1.5 Symbols used ..................... 5 2 Basic safety information..................6 2.1 Safety information ....................
  • Page 4 6.2 Double Check ....................74 6.3 Starting the inverter ..................74 6.4 Initial setup ....................... 75 6.5 Smartphone app SOFAR Setting .............. 77 7 Operation of the device..................78 7.1 Control panel and display field ..............78 7.2 Standard display ..................... 79...
  • Page 5 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 7.4 Menu structure ....................85 7.5 Firmware update ..................... 94 8 Troubleshooting handling..................95 8.1 Troubleshooting ....................95 8.2 Error list ......................96 8.3 Maintenance ....................113 9 DataSheet........................115...

  • Page 6: About This Manual

    Copyright declaration The copyright of this manual is owned by SOFAR. It may not be copied – neither partially nor completely – by companies or individuals...

  • Page 7: Target Group

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Target group This manual is intended for specialist electrical engineers who are responsible for the installation and commissioning of the inverter in the PV system, as well as the PV system operators. Symbols used This manual contains information on safe operation and uses symbols to ensure the safety of persons and property as well as the efficient operation of the inverter.

  • Page 8: Basic Safety Information

    Basic safety information NOTE If you have any questions or problems after reading the  following information, please contact SOFAR This chapter details the safety information pertaining to the installation and operation of the device. Safety information Read and understand the instructions within this manual and...
  • Page 9 SOFAR assumes no responsibility for the destruction of property or any injuries to personnel caused by improper usage. 2.1.2 Installation requirements Please install the inverter according to the information contained in the following section.
  • Page 10 NOTE Voiding of guarantee Do not open the inverter or remove any of the labels.  Otherwise, SOFAR shall assume no guarantee. 2.1.5 Operation DANGER Electric shock Contact with the electrical grid or the device's terminals ...
  • Page 11 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL CAUTION Burning due to hot housing While the inverter is being operated, several internal  components will become very hot. Please wear protective gloves!  Keep children away from the device!  2.1.6 Repair and maintenance DANGER Dangerous voltage! Before carrying out any repair work, first switch off the...

  • Page 12: Symbols And Signs

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Symbols and signs CAUTION Beware of burning hazards due to the hot housing! While the inverter is in operation, only touch the display  and the buttons, as the housing can become hot. ATTENTION Implement earthing! The PV generator must be earthed in accordance with ...
  • Page 13 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 2.2.1 Symbols on the inverter Several symbols pertaining to safety can be found on the inverter. Please read and understand the content of these symbols before starting the installation. Symbol Description Residual voltage is present in the inverter! Before opening the inverter, you should wait five minutes to ensure that the capacitor has been fully discharged.

  • Page 14: Product Features

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Product features This chapter describes the product features, dimensions and efficiency levels. Product information The HYD 5/6/8/10/15/20KTL-3PH is a grid-coupled PV and energy storing inverter which can also supply energy in stand-alone operation. The HYD 5/6/8/10/15/20KTL-3PH has integrated energy management functions which cover a wide range of application scenarios.

  • Page 15: Product Dimensions

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL be earthed. In normal operation, the operating current must not exceed the limits specified within the technical data. The selection of the optional inverter parts must be determined by a qualified technician who has good knowledge of the installation conditions.

  • Page 16: Functional Features

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Figure. 3-3 HYD 5/6/8/10/15/20KTL-3PH appearance and label NOTE  The picture is only for reference,please make the object as the standard. Functional features The DC output generated by the PV generator can be used for both grid feed-in and battery charging. The battery can supply the energy to the grid or the consumer.
  • Page 17 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5. Wide battery input voltage range (180–800 V) 6. The EPS output can be connected to unbalanced loads 7. Up to 6 inverters can operate in parallel at the EPS connection and AC connection 8. Monitoring via RS485 and WiFi, optionally via Bluetooth...
  • Page 18 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 3.4.2 Electrical block diagram Figure. 3-4 Electrical block diagram...

  • Page 19: Application Modes

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Application modes 3.5.1 Typical energy storage system A typical energy storage system with PV panels and battery unit(s), connected to the grid. Figure. 3-5 Typical energy storage system 3.5.2 System without PV connection In this configuration, there are no PV panels connected and the battery is charged through the grid connection.
  • Page 20 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 3.5.3 System without battery In this configuration, the battery unit(s) can be added later. Figure. 3-7 System without battery 3.5.4 Back-up mode (off-grid) When there is no grid connection, the PV panels and the battery will provide electricity to the critical load. Figure.
  • Page 21 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL NOTE Off-grid carrying capacity In off-grid mode, the inverter's ability to support  capacitive and inductive loads is 1/3 of the single- phase rated power. 3.5.5 System with multiple inverters (5–120 kW) Up to 6 inverters can be connected in parallel, to the grid and EPS connections, resulting in an EPS output of up to 120 kVA.
  • Page 22 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL For the parallel switching of several devices, it is  recommended to use a joint AC load break switch for the connected loads at the GRID connection. In order to evenly distribute the loads among the ...
  • Page 23 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 3.5.7 Unbalanced load By enabling the “Unbalanced load” option, the inverter compensates unbalanced loads either in EPS mode. Figure. 3-11 Unbalanced load(EPS mode) Figure. 3-12 Unbalanced load(On Grid)

  • Page 24: Connecting Bts 5K Batteries

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Connecting BTS 5K batteries Using SOFAR's own battery module BTS 5K is a way to build scalable battery systems. A BTS E5-DS5 battery system has a nominal capacity of 5.12 kWh, allowing multiple configurations for one tower from 5.12 kWh (BTS E5-DS5) to 20.48 kWh (BTS E20-DS5).
  • Page 25 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL inverter's system settings, for example: System Settings – Input Channel Config – Bat Channel2 –  Not Used. The battery inputs of different inverters should not be  connected in parallel Each battery tower corresponds to a unique battery ...

  • Page 26: Installation

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Installation Installation information DANGER Fire hazard Do NOT install the inverter on flammable material.  Do NOT install the inverter in an area in which  flammable or explosive material is stored. CAUTION Burning hazard Do NOT install the inverter in places where it can be ...

  • Page 27: Examination Before Installation

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Examination before installation 4.3.1 Checking the external packaging materials Packaging materials and components may become damaged during transportation. Therefore, external packaging materials must be examined before the inverter is installed. Check the external packaging material for damage, e.g. holes and cracks.

  • Page 28: Tools

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL ① Battery connection ② DC switch ③ PV input terminals ④ AC load connection ⑤ AC grid connection ⑥ USB/WiFi ⑦ DRMs ⑧ Communication connection ⑨ Link port 1 ⑩ Link port 0 Current sensor ⑫ LCD display ⑪...
  • Page 29 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL No. Tool Model Function the AC terminal Removal tool Used to remove the PV , battery terminal Wire stripper Used to strip the wire 6mm Allen key Used to turn the screw to connect the rear panel to the inverter Crimping tool Used to crimp power...

  • Page 30: Installation Environment Requirements

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Installation Environment Requirements Choose a dry, clean, and tidy place, convenient for  installation. Ambient temperature range: -30~+60°C.  Relative humidity: 5~95% (non-condensed).  The inverter shall be installed in a well-ventilated place.  Do not place the inverter close to flammable or explosive ...

  • Page 31: Unpacking The Inverter

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Minimum distances for individual HYD 5/6/8/10/15/20KTL-3PH inverters: Figure. 4-3 Minimum distances for individual inverter Minimum distances for several HYD 5/6/8/10/15/20KTL-3PH inverters: 200 mm 200 mm Figure. 4-4 Minimum distances for several inverter Unpacking the inverter Open the packaging and grip underneath the inverter at the sides with both hands.
  • Page 32 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Figure. 4-5 Moving the inverter Lift the inverter out of the packaging and move it to its installation position. ATTENTION Mechanical damage In order to prevent injuries and damage to the device,  ensure that the inverter is kept balanced while it is being moved - it is very heavy.

  • Page 33: Installation Of The Inverter

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Installation of the inverter Hold the wall bracket in the desired place and mark the four holes. Put the wall bracket aside and drill the holes. Guide the spread screw M8*80 into the hole vertically and ensure that its insertion depth is sufficient.

  • Page 34: Electrical Connections

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Electrical connections Safety instructions This topic describes the electrical connections of the inverter HYD 5/6/8/10/15/20KTL-3PH. Read this section thoroughly and carefully before connecting the cables. DANGER Electrical voltage at the DC connections Ensure that the DC switch is OFF before establishing the ...
  • Page 35 Table. 5-1 Relevant current parameters of each model Model Isc PV (absolute Maximum output maximum) overvoltage protection HYD 5KTL-3PH 15 A/15 A 8 A*3 HYD 6KTL-3PH 10 A*3 HYD 8KTL-3PH 13 A*3 HYD 10KTL-3PH 30 A/30 A 16 A*3...

  • Page 36: Wiring Overview

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 25(16) 35.4(22.6) 60(35) 50(33) 71(46.7) 120(70) 1000 4500 1500 NOTE  The values in brackets apply when the inverter is installed in a humid environment. Table. 5-3 The decisive voltage class(DVC) Interface PV input connection DVCC AC connection DVCC Battery connection...

  • Page 37: System Electrical Topology

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL + : Connect the positive cable of the PV array PV cable (4…6mm - : Connect the negative cable of the PV array Connection Outdoor multicore method: copper cable male 5/6/8KTL-3PH female 6...10mm² terminals are 10/15/20KTL-3PH inserted into Load 8-10mm²...
  • Page 38 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Figure 5-1 System Electrical Topology (General) a. Ensure that both the AC LOAD and AC GRID PE wires are grounded at the same time, as shown in the diagram. Otherwise the inverter may be abnormal in off-grid mode. b.
  • Page 39 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Figure 5-2 System Electrical Topology (For Australia, South Africa and New Zealand) DANGER Install Residual current device (RCD)in front of the load RCD is necessary for critical load, but optional for  normal load. In off-grid mode, the Entry master switch is unprotected ...

  • Page 40: Smart Meter /Ct

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Smart Meter /CT There are different system configurations possible depending on the user's requirements, existing electrical infrastructure and local regulations. The distribution box must be configured to comply to the grid operator requirements. The inverter has an integrated AC relay to disconnect all phases and Neutral from the grid in case of grid fault or grid outage.
  • Page 41 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.4.1 System A: direct measurement with CTs (3000:1) Figure. 5-3 Electrical connections(Plan A:CT)
  • Page 42 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.4.2 System B: measurement with smart meter + CTs(200 A/5 A default) Figure. 5-4 Electrical connections(Plan B:Meter+CT)
  • Page 43 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.4.3 System C: measurement with directly connected smart meter Figure. 5-5 Electrical connections(Plan C:Meter)
  • Page 44 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Table. 5-5 CT 200 A/5 A Default (Split Core Current Transformer for smart meter or as a CT directly connected to the inverter.) Technical Data Rated primary current 200 A Rated secondary current Rated operating 50/60 Hz frequency Perforated size 24 mm Diameter...

  • Page 45: Electrical Connection

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Electrical connection The electrical connection is established as follows: Connect PE cable Connect DC input cable Connect battery cable Connect AC output power cable Connect communication cable (optional) Connecting the PE cables Connect the inverter to the equipotential bonding bar by using the protective earth cable (PE) for grounding.
  • Page 46 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Figure. 5-6 Connecting PGND cable(a) NOTE  L2 is 2 to 3 mm longer than L1 2. Crimp the cable to the ring terminal: Figure. 5-7 Connecting PGND cable(b) 3. Install the crimped ring terminal and the washer with the M6 screws and tighten these with a torque of 3 Nm using an Allen key: Figure.

  • Page 47: Connecting The Dc Lines For The Pv Modules And Battery

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL ③ Threaded hole Connecting the DC lines for the PV modules and battery NOTE  The connection steps of the battery and PV are the same, only the terminal specifications are different. The colour of the battery terminal is blue, the colour of PV terminal is black.
  • Page 48 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL NOTE  L2 is 2 to 3 mm longer than L1 3. Insert the positive and negative DC cables into the corresponding cable glands. Crimp the DC cables. The crimped cable must be able to withstand a tractive force of 400 N·m. Figure.
  • Page 49 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Re-screw the cable glands to the connector housing. Figure. 5-12 Connecting PV(d) Insert the positive and negative connectors into the corresponding DC input terminals of the inverter until you hear a “clicking” sound. Figure. 5-13 Connecting PV(e) ①...

  • Page 50: Connecting The Ac Power Cables

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Removing the connectors CAUTION Danger of DC arcing  Before removing the plus and minus connector, ensure that the DC switch has been set to OFF. In order to remove the plus and minus connection from the inverter, insert a removal key into the locking and press on the key with the adequate force as shown in the following illustration:...

  • Page 51: Ac Connector Installation

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL The AC cable should be correctly dimensioned in order to ensure that the loss of power in the AC cable is less than 1% of the rated output. If the AC cable resistance is too high, then the AC voltage will increase;...
  • Page 52 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Figure. 5-16 AC connection(a) A = 30~50 mm B = 3~5 mm Disassemble connector accordance with following illustration. Guide the AC output cable through the cable gland. Figure. 5-17 AC connection(b) Connect the AC cable in accordance with the following requirements and tighten the terminal using the Allen key.
  • Page 53 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Table. 5-9 AC connection description Connection Cable Phase 1 (brown) Phase 2 (black) Phase 3 (grey) Neutral conductor (blue) Earthing cable (yellow-green) Assemble the connector housing and screw the cable gland tight. Figure. 5-19 AC connection(d) Connect the AC connector to the AC connection of the inverter by turning it clockwise until it locks into place.

  • Page 54: Communication Interfaces

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.10 Communication interfaces The positions of the communications interfaces of the HYD 5/6/8/10/15/20KTL-3PH are displayed below: Figure. 5-20 HYD 5/6/8/10/15/20KTL-3PH interfaces Table. 5-10 communication interfaces description No. Connection Function USB port for firmware update and safety USB/WiFi parameter import;...
  • Page 55 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.10.1 Multifunctional Communication Port Please refer to the following table for the specific PIN assignments. ① ② ③ ④ Figure. 5-21 COM interface...
  • Page 56 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Table. 5-11 COM interfaces description Definition Function Note RS485differential RS485A1-1 signal+ RS485differential RS485A1-2 Wired monitoring or signal+ inverter cascade RS485differential monitoring RS485B1-1 signal– RS485differential RS485B1-2 signal– RS485differential RS485A2 signal+ Communicate with electricity meters RS485differential RS485B2 signal- CAN0_H CAN high data Used for...
  • Page 57 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.10.2 RS485 For the monitoring and control of several inverters, you connect the RS485 wires in daisy-chain. At the first and the last inverters, you need to terminate the bus with an 120 Ohm resistor between Pin 1 and 4. Figure.
  • Page 58 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL NOTE  Use the shielded twisted pair cable  The copper outer diameter should be more than 0.5 mm²  Keep away from power cables or other electric fields  Maximum distance is 1200 meters Smart meter with CT connection (System B, default) Smart meter pins Public grid Figure.
  • Page 59 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL NOTE  The arrows on the current transformers direct to the grid.  Up to 200 A measurement  Accuracy class and load rating(VA/Ω):1 class  Rated operating voltage:AC 0.66KV(Equivalent to 0.69KV GB156-2003)  Rated frequency: 50-60Hz ...
  • Page 60 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Current Ratio setting Figure. 5-25 Meter current ratio setting NOTE  The inverter connected to the meter is a power generation device, and the function of the meter connected to the traditional load (electrical device) is opposite. Therefore, for our product, when the power is output to the grid, the electricity meter will show a positive value, and when the power is purchased from the grid, it will show a negative...
  • Page 61 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.10.5 BMS connection For batteries with a BMS (for example Li-Ion batteries), you need to connect either the CAN Bus or RS485 with the battery management system. The inverter will use the CAN Bus or RS485 Bus according to the battery selection in the inverter's menu.
  • Page 62 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.10.7 Communication power supply The power supply can be used for the external power supply, or for the switching contact. Max. 400 mA / 5 W. 5.10.8 CT Interface For configurations according to System A, CTs are directly connected to the inverter without an smart meter.
  • Page 63 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Definition Function Ict_S+ Phase S + (Phase L2 +) Ict_T- Phase T – (Phase L3 -) Ict_T+ Phase T + (Phase L3 +) Follow below steps to install the CTs. Fix the cables on the terminals according to above table, and put the connector housing over the terminals.
  • Page 64 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL smart meter is connected to the Master inverter for the system control. Figure. 5-30 parallel system NOTE  The first and last inverter need to be connected with the 8 Pin connection terminals! Pin Connections Figure. 5-31 Link Port connection(a) Table.
  • Page 65 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Definition Function IN_SYN0 Synchronising signal 0 CANL CAN low data SYN_GND0 Synchronising signal GND 0 CANH CAN high data IN_SYN1 Synchronising signal1 SYN_GND1 Synchronising signal GND 1 SYN_GND2 Synchronising signal GND 2 IN_SYN2 Synchronising signal 2 Installation Connect and lock the connector by turning clockwise: Figure.
  • Page 66 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.10.10 DRMs/Logic interface DRMs/Logic interface is used to control the inverter by external signals, usually provided from grid operators with ripple control receivers or other means. The logic interface pins are defined according to different standard requirements. Please consider the following PIN assignment.
  • Page 67 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Lock the connector by turning clockwise: Figure. 5-36 DRM connection(d) DRMs for AS/NZS 4777.2:2015 and AS/NZS 4777.2:2020 Also known as Inverter Demand Response Modes (DRMs). The inverter recognises all supported Demand Response commands and initiates the reaction within two seconds. The inverter will continue to respond while the mode remains asserted.
  • Page 68 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Colour Function brown/white Internally shorted brown Logic interface for VDE-AR-N 4105:2018-11 This function serves to control and/or limit the output power of the inverter. The inverter can be connected to a radio ripple control receiver in order to dynamically limit the output power of all inverters within the system.
  • Page 69 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Relay status: Closing is 1, opening is 0 Table. 5-18 Logic interface description(b) Active power Cos (φ) 100% Logic interface for EN50549-1:2019 The active power output can be ended within five seconds following a command to the input interface. Figure.

  • Page 70: Feed-In Limit Function

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Table. 5-20 Logic interface description(d) Active power Power drop rate Cos (φ) < 5 seconds 100% 5.11 Feed-in limit function The feed-in limit function can be used to limit the power fed back into the grid. For this function, a power measurement device must be installed according to system A, B, or C.

  • Page 71: Installation Of The Wifi Or Ethernet Stick

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 5.12.1 RS485 You can connect RS485-linked devices to your PC or a data logger via an RS485 USB adapter. Please refer to the pin assignment in paragraph 5.9.2. NOTE  The RS485 line may not be any longer than 1000 m ...
  • Page 72 Preparation: The WiFi stick is installed in accordance with the previous section and the SOFAR inverter must be in operation. Carry out the following steps in order to configure the WiFi stick: Connect your PC or smartphone with the WiFi network of the WiFi stick.
  • Page 73 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL SOLARMAN Smart (for end customers):  SOLARMAN Business (for installers):  Figure. 5-42 SOLARMAN QR codes Configuration steps After starting the app, register as a new user or enter the current solarMAN access data. Create a new system and save the system data. Scan the barcode of the stick logger to assign an inverter to the system.
  • Page 74 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL WiFi stick status The LEDs on the WiFi stick provide information regarding the status: Table. 5-21 WiFi stick status description Status Description NET: On: Connection to server successful Communication with the router Flashing (1 sec.): Connection to router successful Flashing (0.1...
  • Page 75 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL If you wish to set up a fixed IP address, connect a PC to the Ethernet stick and open the configuration page via the web address 10.10.100.254.

  • Page 76: Commissioning The Inverter

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Commissioning the inverter Safety test before commissioning ATTENTION Check the voltage range  Ensure that the DC and AC voltages are within the permissible range of the inverter. Double Check Please ensure that the inverter and all the wiring are installed correctly, securely, and reliably, and that all environment requirements are met.

  • Page 77: Initial Setup

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Turn ON DC switch. Switch ON the battery. Turn ON DC isolator between battery & inverter. Turn ON AC circuit breaker between the inverter GRID port & GRID. Turn ON AC circuit breaker between the inverter LOAD port &...
  • Page 78 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL otherwise “Not Use” PV Channel2 if PV strings are connected to PV2 independently, select “PV Input 2” If PV strings are connected to PV2 in parallel to PV1, select “PV Input 1”, otherwise “Not Use” 5) Set battery Default values can be set according parameters to the input channel configuration...

  • Page 79: Smartphone App Sofar Setting

    Smartphone app SOFAR Setting The Sofar Cloud Monitoring app allows for easy initial setup as well as advanced configurations.You can download it on the major mobile application platforms or scan the following QR code through your browser to download.

  • Page 80: Operation Of The Device

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Operation of the device This chapter describes the LCD and LED displays of the HYD 5/6/8/10/15/20KTL-3PH inverter. Control panel and display field 7.1.1 Buttons and display lights Figure. 6-1 Main interface Buttons Button Name Description Back Previous screen, enter menu Select previous menu...

  • Page 81: Standard Display

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL LEDs State Colour State Green Normal On-grid Green (flashing) Standby Green Normal Off-grid Green (flashing) Standby Alarm Error Standard display The screen shows all relevant information of the inverter: Figure. 6-2 LCD display Press Up button, to show PV Information like voltage, power and frequency Press Up button again to show Grid Output Information like voltage, power and frequency...

  • Page 82: Energy Storage Modes

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Press Up button again to show Battery Information(BAT1) like current, power, state of charge etc. Press Up button again to show Battery Information(BAT2) like current, power, state of charge etc. Energy storage modes The HYD 5/6/8/10/15/20KTL-3PH comes with several integrated energy management modes.
  • Page 83 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL If the PV generation is less than the load consumption, it will discharge the battery to supply power to the load. If PV generation plus Battery discharge power is less than the load, the inverter will import power from the grid.
  • Page 84 The passive mode is used in systems with external energy management systems. inverter's operation controlled by the external controller using the Modbus RTU protocol. Please contact SOFAR if you need the Modbus protocol definition for this device. Figure. 6-3 external control of inverter...
  • Page 85 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 7.3.5 Peak Shaving Mode Used to limit the maximum power priority purchased from the grid.The maximum purchasing power can be set in this mode. When the system preferentially buys more power from the grid than the set value,The battery starts discharging and stabilizes the system power at the set value.
  • Page 86 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL When the local power grid is unstable or generators are used. 7.3.7 Manual Genset Mode (energy storage mode → generator mode) Applicable scenario 2 : Users want to manually switch the power grid and generator. When the power grid is powered off, the generator is manually started.

  • Page 87: Menu Structure

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL NOTE  The set generator power cannot exceed the rated power of the generator  In order to prevent generator damage during generator operation, PV and battery energy will not be output inversely. At this time, PV energy is used for battery charging Menu structure Press the...
  • Page 88 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL “System Settings” menu In this menu you can do the basic settings which are needed to operate the device. 1. Language Settings Sets the display language 2. Time Sets the system time of the inverter 3. Safety Param. Sets the country and grid code 4.
  • Page 89 Battery Type, more settings can be adjusted. See details below. 1.1 Battery 1 Auto Cfg Automatic battery configuration (only available for SOFAR battery types). Detects all battery modules and the assignment to the battery inputs. Battery Capacity (kWh) Set the capacity of connected...
  • Page 90 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL for the battery Discharge Depth (%) Max. allowed discharge depth (DOD) for the battery. DOD of 80% means, a battery with 10 kWh capacity can be discharged to a minimum energy level of 2 kWh. Discharge Depth Max.
  • Page 91 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL the “Force active” menu item. Force Active Select “Force active” to activate a battery from standby mode 3. Set Feed-in Limit Activates or deactivates the feed- in power function of the inverter and sets the maximum feed-in power.
  • Page 92 8. Reset Bluetooth Resets the Bluetooth interface of the inverter if the device is not found by the Sofar View App 9. CT Calibration This function is used to correct the direction and grid phase assignment of the CTs directly connected to the inverter.
  • Page 93 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL supplied three-phase smart meter and with this option set to "enable", the per phase output current of the inverter will respond independently. Important: for this function to operate properly, the phase on the smart meter must correlate to the corresponding phase when it is wired into the inverter.
  • Page 94 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL * Function 12,13 are available from firmware version V10. NOTE  The inverter (Available from hardware version V003) has built-in relays to control the short circuit of the load N line to ground when off-grid.  When the inverter is off-grid and the load N line and PE line are short-connected, if the power grid is restored and the load N line and PE line are still...
  • Page 95 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Bat1 Information (1) Battery Type, Discharge Depth ，EPS Safety Buffer Bat1 Information (2) The Start time and the End time of Force filling Bat1 Information (3) Battery Address Bat2 Information (1) Battery Type, Discharge Depth ，EPS Safety Buffer Bat2 Information (2) The Start time and the End time of Force filling...

  • Page 96: Firmware Update

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL The user can update the software via the USB flash drive. SOFAR will provide the firmware update when it is required. Firmware update NOTE  If you want to do a firmware update, please upgrade with PV input or grid status, the update will fail if only the battery is connected.

  • Page 97: Troubleshooting Handling

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Troubleshooting handling Troubleshooting This section contains information and procedures pertaining to the remedying of potential problems with the inverter. To carry out troubleshooting, proceed as follows: Check the warnings, error messages or error codes displayed  on the screen of the inverter.

  • Page 98: Error List

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Settings - Switch On/Off- Switch On. start up to enable the inverter to start up and run. Disconnect the AC circuit breaker connecting the inverter power grid port to the power grid. Disconnect the AC breaker connecting the inverter load port to the emergency load.
  • Page 99 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL The mains Inverter will ID003 GridOFP frequency is too automatically high return to normal operating status when the electric grid’s back to normal. If the alarm occurs frequently, check whether the grid voltage/frequency is within the acceptable range.
  • Page 100 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL OVRT function is If the alarm occurs ID006 OVRT faulty occasionally, the possible cause is LVRT function is ID007 LVRT that the electric faulty grid is abnormal Island protection ID008 IslandFault occasionally. fault Inverter will Transient automatically ID009 GridOVPInstant1...
  • Page 101 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Feed-in Limit inverter, switch ID013 RefluxFault function is faulty OFF inverter, wait for 5 minutes, then unbalanced ID014 VGridUnbalance switch ON inverter. source voltage Check whether the The inverter problem is solved. ID015 InvOVPInstant instantaneous If no, please value overvoltage contact technical GridPhaseMutatio...
  • Page 102 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Leakage current ID029 ConsistentGFCI consistency error The line voltage sample between the master DSP ID030 ConsistentVgrid and the slave DSP is not consistent. DCI consistency ID031 ConsistentDCI error ID032 N-PE fault SpiCommFault(D ID033 communication error (DC) SpiCommFault(AC ID034 communication...
  • Page 103 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL repaired in time. Check the PE ID043 PEConnectFault Earth fault conductor for function Check the input mode Incorrect input (parallel/independ ID044 InputConfigError mode ent mode) Settings configuration for the inverter. If not, change the input mode. Check that the wiring of the ID045...
  • Page 104 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Heat sink installed where TempErrHeatSink ID052 temperature there is no direct error 3 sunlight. Please ensure that TempErrHeatSink Temperature ID053 the inverter is error heat sink 4 installed in a TempErrHeatSink Temperature ID054 cool/well error heat sink 5 ventilated place.
  • Page 105 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL voltage of the inverter. If this is the case, adjust the number of PV modules in series. After the correction, the inverter automatically returns to its normal state. Check whether the voltage of the battery is higher than the maximum input Battery...
  • Page 106 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Flying cross- capacitor ID075 FlyingCapUVP undervoltage protection ID076 PVUVP PV undervoltage Software overcurrent ID081 SwBatOCP protection of the battery Dci overcurrent ID082 DciOCP protection Instantaneous ID083 SwIOCP output current protection BuckBoost ID084 SwBuckBoostOCP software sequence Output RMS ID085 SwAcRmsOCP current...
  • Page 107 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL default) LLC bus ID097 HwLLCBusOVP hardware overvoltage Inverter bus ID098 HwBusOVP hardware overvoltage BuckBoost ID099 HwBuckBoostOCP hardware overflows Battery hardware ID100 HwBatOCP overflow PV hardware ID102 HwPVOCP overflows Mains current is too high and has ID103 HwACOCP triggered hardware...
  • Page 108 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Make sure that the inverter has been installed in a cool and well- ventilated place without direct The inverter has sunlight. OverTempDeratin throttled due to ID113 too high a Make sure the temperature inverter is installed vertically and the ambient temperature is...
  • Page 109 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL recoverable fault contact technical support. Permanent bus hardware failure ID131 PermHwBusOVP due to overvoltage Input current is unbalanced and PermIpvUnbalanc ID132 has caused an unrecoverable fault Permanent battery ID133 PermEPSBatOCP overcurrent error in EPS mode Permanent error PermAcOCPInstan ID134 due to transient...
  • Page 110 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL support. Permanent error ID140 PermRelayFail of the mains relay The bus voltage is unbalanced PermBusUnbalan ID141 and has caused an unrecoverable error ID142 PermSpdFail(DC) surge protection ID143 PermSpdFail(AC) surge protection ID144 PermGridRlyFail Grid relay fault Check the USB ID145 USBFault USB error...
  • Page 111 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL communication error (DC) ID154 SCILose(AC) communication error (AC) ID155 SCILose(Fuse) communication error (fuse) Download the latest firmware from the website Inconsistent and launch the ID156 SoftVerError software versions software update. If the error persists, contact technical support.
  • Page 112 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Communication is faulty Lithium battery 4 ID160 BMS4CommFault Communication is faulty The inverter has ID161 ForceShutdown Forced shutdown been forcibly disconnected. Remote The inverter is shut ID162 RemoteShutdown shutdown down remotely. The inverter is ID163 Drms0Shutdown DRM 0 shutdown running with a Drms0 shutdown.
  • Page 113 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL ID183 BMS VerFault BMS version fault BMS CAN version ID184 BMS CAN VerFault fault BMS CAN version ID185 BMS CAN VerLow is out of date Battery ID186 BatDischargeHTP overtemperature protection Low temperature ID187 BatDischargeLTP protection for battery discharge Battery charging ID188...
  • Page 114 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL String safety ID202 StrFuseALM5-2 open 5-2 String safety ID203 StrFuseALM6-1 open 6-1 String safety ID204 StrFuseALM6-2 open 6-2 String safety ID205 StrFuseALM7-1 open 7-1 String safety ID206 StrFuseALM7-2 open 7-2 String safety ID207 StrFuseALM8-1 open 8-1 String safety ID208 StrFuseALM8-2...

  • Page 115: Maintenance

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL String safety ID224 StrFuseALM16-2 open 16-2 Enter safety open ID225 InputFuseALM0 Enter safety open ID226 InputFuseALM1 Enter safety open ID227 InputFuseALM2 Enter safety open ID228 InputFuseALM3 Enter safety open ID229 InputFuseALM4 Enter safety open ID230 InputFuseALM5 Enter safety open ID231 InputFuseALM6...
  • Page 116 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL 8.3.1 Cleaning the inverter Clean the inverter using an air blower and a dry, soft cloth or a soft bristle brush. Do NOT clean the inverter with water, corrosive chemicals, cleaning agents etc. 8.3.2 Cleaning the heat sink In order to help guarantee correct long-term operation of the inverter, make sure that there is sufficient space for ventilation around the heat sink.

  • Page 117: Datasheet

    HYD 5/6/8/10/15/20KTL-3PH USER MANUAL DataSheet NOTE  The following parameters may change without notice，please refer to the user manual and DataSheet on our website. Model 5KTL-3PH 6KTL-3PH 8KTL-3PH 10KTL-3PH 10KTL-3PH-A 15KTL-3PH 20KTL-3PH PV input 7500Wp 9000Wp 12000Wp 15000Wp 15000Wp 22500Wp 30000Wp Recommended Max.
  • Page 118 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL Model 5KTL-3PH 6KTL-3PH 8KTL-3PH 10KTL-3PH 10KTL-3PH-A 15KTL-3PH 20KTL-3PH 7.6/7.2/6.9A 9.1/8.7/8.3A 15.2/14.5/13.9A Rated Output Current 12.1/11.6/11.1A 15.2/14.5/13.9A 22.7/21.7/20.8A 30.3/29.0/27.8A 3N~+PE, 380/400/415 Va.c. Rated Output Voltage 50/60Hz Rated Output Frequency 5 kVA 6 kVA 8 kVA 10 kVA 10 kVA 15 kVA 20 kVA...
  • Page 119 [2] PV Max. Isc may change(15A to 22.5A;30A to 45A), please refer to the label on the body. Please refer to document “SOFAR inverter Model compatible battery list” Battery-AC maximum efficiency of battery charge and discharge Standby loss at rated input voltage...
  • Page 120 HYD 5/6/8/10/15/20KTL-3PH USER MANUAL...

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