PowerWalker SAN 6k User Manual
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PowerWalker SAN 6k User Manual

Solar iinverter, three-phase hybrid inverter
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solar inverter saN 6k-10k
Three-phase Hybrid Inverter

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Summary of Contents for PowerWalker SAN 6k

  • Page 1 User Manual solar inverter saN 6k-10k Three-phase Hybrid Inverter...
  • Page 2 PowerWalker User Manual History VERSION RELEASED DESCRIPTION Dec. 20, 2023 First release...

  • Page 3: Preface

    This manual describes the mounting, installation, electrical connection, commissioning, operation, maintenance, and APP operation of the PowerWalker Solar Inverter SAN Series. Please read this manual and the accompanying documents carefully before using the product and keep them in a place where they can be easily accessed by installation, operation and maintenance personnel.

  • Page 4: Table Of Contents

    PowerWalker User Manual coNteNts Preface About This Manual Target Group Scope Conventions 1. Safety 1.1 Symbols on the Product 1.2 Safety Precaution 2. Product Introduction 2.1 Product Overview Intended Use Compatible lithium iron phosphate (LiFePO4) batteries 2.2 Product Appearance 3. Installation 3.1 Packing List...
  • Page 5 PowerWalker User Manual Connection Diagram 8: Communication Interfaces 4.6.1 BMS Connection 4.6.2 DRMs Connection 4.6.3 Meter Connection 4.6.4 CT Connection 4.6.5 Parallel Communication Connection 4.6.6 NTC/DI/DO Connection(s) 4.6.7 RSD/RMO Connection(s) 4.6.8 WiFi/LAN Module Connection 5. System Operation 5.1 Startup/Shutdown Procedure 5.2 Inverter Working Mode...

  • Page 6: Safety

    Read all instructions and warnings on the unit and in the manual before using the inverter. Keep the instructions in a place where they are easily accessible. The three-phase PowerWalker Solar Inverter 6k/10k SAN OGV 3/3 has been designed and tested in strict compliance with relevant safety regulations. Local safety and grid regulations must be observed during installation, operation, and maintenance.

  • Page 7: Safety Precaution

    PowerWalker User Manual 1.2 Important Safety Precaution Instructions DANGER • Installation, maintenance, and connection of inverters must be carried out by qualified personnel in compliance with local regulations and the requirements of local authority and/or electricity company. • The temperature of some parts of the inverter may exceed 60℃ during operation. DO NOT touch the inverter during operation to avoid burns.

  • Page 8: Product Introduction

    2.1 Product Overview Intended Use The PowerWalker Solar Inverter SAN series are transformerless hybrid inverters with IP65 protection level for both indoor and outdoor use. They are equipped with 2 MPP trackers and a battery connection that can 1) increase the PV energy yield where the roof has varying orientations or is subject to shading;...

  • Page 9: Product Appearance

    PowerWalker User Manual 2.2 Product Appearance 213.3 LED Details Height(mm) Width(mm) Depth(mm) 530.0 550.0 213.3 The External View of Solar Inverter by BlueWalker GmbH...
  • Page 10 PowerWalker User Manual PV Switch 2. PV Input Terminals 3. Battery Connect Terminals COM1 Ports ( RS485, BMS, DRMs/RCR, CT, NTC/DI/DO, RSD/RMO, PARAL) COM Port (WIFI/LAN) BACKUP Output Terminal Grounding Terminal The bottom view of Solar inverter 8. GRID Output Terminal...

  • Page 11: Installation

    PowerWalker User Manual 3. iNstallatioN 3.1 Packing List After unpacking, please check the following packing list carefully for any damage or missing parts. If any damage or missing parts occurs, please contact the dealer or supplier for help immediately. Number...

  • Page 12: Selecting The Mounting Location

    PowerWalker User Manual 3.2 Selecting the Mounting Location 3.2.1 Installation Environment Requirements NOCTICE The protection class of the inverter is IP65 for indoors and outdoors. However, please ensure that the mounting location meets the following requirements: a) The inverter must be protected from direct sunlight, rain exposure, and snow cover when it is installed in outdoor areas.
  • Page 13 PowerWalker User Manual 3.2.2 Mounting Requirements WARNING Mount the inverter vertically or tilted backwards by max 15°. The inverter must not be installed in a wrong direction and the connection area must face downwards. Horizontally Upright Upside-down 3.2.3 Installation Space Requirements...

  • Page 14: Mounting

    PowerWalker User Manual 3.3 Mounting NOTE • Depending on the mounting bracket included in the packaging, please follow the correct instructions for Type I or Type II. • Before mounting the inverter, you have to prepare expansion screws and security screw.

  • Page 15: Mounting Bracket Type

    PowerWalker User Manual 3.3.2 Mounting bracket Type II Step 1. Install the mounting bracket 1) Use a level ruler to mark the position of the 4 holes on the wall. Refer to Figure a. And drill 4 holes, 12 mm in diameter and 60 mm in depth. Refer to Figure b.

  • Page 16: Electrical Connection

    PowerWalker User Manual 4. electrical coNNectioN This chapter shows the details connection of the three phase hybrid inverter. DANGER Ensure that the inverter and all cables to be installed are completely powered off during all installation and connection work. Failure to do so may result in fatal injury due to the high voltage.

  • Page 17: Connection Diagram 2: Non-Parallel Connection Mode

    PowerWalker User Manual Connection Diagram 2: Non-Parallel Connection Mode Normal Load L3/Positive Negative Flow from grid to inverter Breaker PV Array Inverter Breaker ① CT Ratio: CT Connection 1000：1 （50A） Critical Load Lithium Battery/ ② ③ ② Lead-acid Battery Main...

  • Page 18: Connection Diagram 3: Parallel Connection Mode - Scheme A (N=2)

    PowerWalker User Manual Connection Diagram 3: Parallel Connection Mode - Scheme A (N=2) Turn this switch to “ON”. No.2 Inverter L3/Positive Negative CT1+ CT2+ PARA PV Array ① CT3+ Breaker ③ ③ No.1 Inverter ① PV Array Lithium Battery/ Lead-acid Battery ③...
  • Page 19 PowerWalker User Manual Note for Scheme A: 1) BMS communication connection is only for lithium battery. 2) With parallel connection mode, it is necessary to connect APP to one of inverters and then go to Console > Other Setting page to enable Parallel mode on APP.

  • Page 20: Connection Diagram 4: Parallel Connection Mode - Scheme B (N>2)

    PowerWalker User Manual Connection Diagram 4: Parallel Connection Mode - Scheme B (N>2) Turn this switch to “ON”. No.N Inverter L3/Positive CT1+ CT2+ Negative PARA CT3+ ① ③ Breaker PV Array ③ ① Lithium Battery/ Lead-acid Battery Turn this switch to “1”.

  • Page 21: Grounding

    PowerWalker User Manual Note for Scheme B: 1) BMS communication connection is only for lithium battery. 2) It is necessary to turn the matched resistance switch of No. 1 inverter and No. N inverter to “ON” and turn others to “1” in p. arallel connection mode.

  • Page 22: Grid/Backup Connection

    PowerWalker User Manual 4.2 GRID/BACKUP Connection If necessary, please refer to below to disassemble the GRID/BACKUP terminal. Cable Gland Threaded Sleeve Connection Terminal GRID/BACKUP Connector Structure DANGER Before connecting the GRID/BACKUP terminal, ensure that both the AC terminal and the DC terminal are powered OFF and the PV switch is OFF.
  • Page 23 PowerWalker User Manual Please use standard four-sided tubular terminal crimping pliers. The recommended crimping pliers brands are as follows: GeeLii, ELECALL, SATA. Wire threading and crimping. ① Tighten five screws (2.0±0.1N·m) Tighten nut to avoid loosening. Insert the terminal into the GRID/BACKUP port.

  • Page 24: Battery Connection

    PowerWalker User Manual 4.3 Battery Connection The three-phase hybrid inverter only supports the lithium / lead-acid battery. The recommended lithium battery brands and models are as follows: Compatible lithium iron phosphate (LiFePO4) batteries Battery Type: High Voltage Manufacturer Battery Model...

  • Page 25: Connection Diagram 5: Ntc Connection For Lead-Acid Battery

    PowerWalker User Manual Connection Diagram 5: NTC Connection for Lead-Acid Battery CT1+ CT2+ PARA CT3+ DRMS RS485 Function Pin8 GND S Pin9 NTC BAT+ Temperature sensor by BlueWalker GmbH...

  • Page 26: Pv Connection

    PowerWalker User Manual 4.4 PV Connection PV connection see below. Diameter 4~6mm Using crimping tool to crimp. Red-circled area can’t be crimped. Tighten the waterproof nuts on Note: DC cable should be dedicated PV cable (suggest using 4~6mm² PV1-F cable).

  • Page 27: Meter/Ct Connection

    PowerWalker User Manual 4.5 Meter/CT Connection (Direct connected) You can monitor the energy usage with a meter or CTs (current transformers). 4.5.1 Meter Connection (Not included) This section is applicable to non-parallel connection mode only. Three phase ESS inverter supports the meter CHINT - DTSU666 meter by default. The meter is optional.

  • Page 28: Connection Diagram 7: Ct Connection

    PowerWalker User Manual 4.5.2 CT Connection NOTICE Before connecting to the grid, please install a separate AC breaker (≥40A; not supplied) between the CT and the grid. This ensures that the inverter can be safely disconnected during maintenance. Connection Diagram 7: CT Connection...

  • Page 29: Communication Connection

    PowerWalker User Manual 4.6 Communication Connection The communication port on the bottom of the inverter contains communication interfaces as shown below: Connection Diagram 8: Communication Interfaces CT1+ CT2+ PARA CT3+ DRMS RS485 Interface Descriptions PARA 4-Pin interface for parallel communication...

  • Page 30: Bms Connection

    PowerWalker User Manual 4.6.1 BMS Connection (Only for Lithium Battery) RJ45 Terminal Configuration of Battery Communication (BMS) Pin 12345678 Function RS485_ A RS485_B CAN_H Description Function CAN_L Description This manual describes the cable sequence of the inverter. For details about the cable sequence of the battery, see the manual of the battery you use.

  • Page 31: Drms Connection

    PowerWalker User Manual 4.6.2 DRMs Connection DRMs is a shortened form for “inverter demand response modes”. It is a compulsory requirements for inverters in Australia. Note: With DRMs connection, it is necessary to connect APP to inverter and then go to Console > Other Setting page to enable DRM function on APP.

  • Page 32: Meter Connection

    PowerWalker User Manual 4.6.3 Meter Connection RJ45 Terminal Configuration of Meter Communication Pin 12345678 Function RS485_A RS485_B RS485_A RS485_B Description Meter cable connection overview Inverter Meter Pin7(RS485_A ) Pin24 Pin8(RS485_B ) Pin25 Pin7 Pin8 DTSU666...
  • Page 33 PowerWalker User Manual Refer to the following steps: Insert RJ45 terminals into corresponding ports. Unscrew the waterproof cover Screw the waterproof cover back to inverter firmly and loosen the rubber nut on the with 4 x M4 screws(1.2N·m). waterproof cover.

  • Page 34: Ct Connection

    PowerWalker User Manual 4.6.4 CT Connection CT cable connection overview Inverter Pin1,2,3,4,5,6 Pin1(GND) Black Pin2(CT3+) White Pin3(GND) Black Pin4(CT2+) White Pin5(GND) Black Pin6(CT1+) White Refer to the following steps: Insert 6-pin terminals into corresponding ports. Screw the waterproof cover back to inverter firmly Unscrew the waterproof cover with 4 x M4 screws(1.2N·m).

  • Page 35: Parallel Communication Connection

    PowerWalker User Manual 4.6.5 Parallel Communication Connection 4-Pins Terminal Configuration of parallel Communication Function GND_S PARA_SYNC CAN_L CAN_H Description Parallel communication cable connection overview Turn the switch to “ON”. No. 1 Inverter No. 2 Inverter No. N Inverter Turn the switch to “1”.
  • Page 36 PowerWalker User Manual Refer to the following steps: Insert 4-Pin terminal into corresponding ports. Screw the waterproof cover back to inverter firmly Unscrew the waterproof cover with 4 x M4 screws(1.2N·m). and loosen the rubber nut on the Install the seal into the threaded sleeve, fasten the waterproof cover.

  • Page 37: Ntc/Di/Do Connection(S)

    PowerWalker User Manual 4.6.6 NTC/DI/DO Connection(s) 9-Pins Terminal Configuration of Auxiliary Communication Function Description NO (Normal Open) Pin 123456789 NC (Normal Close) NO (Normal Open) NC (Normal Close) GND S NTC BAT+ Refer to the following steps: Unscrew the waterproof cover and loosen the rubber nut on the waterproof cover.

  • Page 38: Rsd/Rmo Connection(S)

    PowerWalker User Manual Function Insert its 9-Pin terminal into the corresponding NTC/DI/DO port on the Three phase ESS inverter. Install the seal into the threaded sleeve, fasten the rubber nut and screw the waterproof cover back to inverter firmly with 4 x M4 screws; 1.2N·m.
  • Page 39 PowerWalker User Manual Refer to the following steps: Unscrew the waterproof cover Insert 4-Pins terminal into corresponding ports. and loosen the rubber nut on the Screw the waterproof cover back to inverter firmly waterproof cover. with 4 x M4 screws(1.2N·m).

  • Page 40: Wifi/Lan Module Connection

    PowerWalker User Manual 4.6.8 WiFi/LAN Module Connection WiFi/LAN Module Quick Installation Guide. LAN Module WiFi Module Loosen screws and Proper strength to avoid damage to the module with 2 x M4 Ensure that it doesn’t fall off move the cover.

  • Page 41: System Operation

    PowerWalker User Manual 5. system oPeratioN 5.1 Startup/Shutdown Procedure 5.1.1 Startup Procedure Check and confirm that the installation is secure and the system grounding is correct. Then confirm that the connections of PV, AC, battery, WiFi and etc. are correct without mistake.
  • Page 42 PowerWalker User Manual 5.1.2 Shutdown Procedure Follow the steps below to shut down the inverter. 1. Press the power button on the inverter to turn it off, or use the Quick Setup in the app to POWER OFF. 2. Switch off the power and the breakers of the backup load, the grid and the battery.

  • Page 43: Inverter Working Mode

    PowerWalker User Manual 5.2 Inverter Working Mode The inverter supports several different working modes. 5.2.1 Self-Consumption mode Refer to 6.4 Quick Setup of App Setting Guide, select ‘Self-consumption’ under Work Mode. Under self-consumption mode, the priority of PV energy consumption will be Load > Battery > Grid, that means the energy produced by PV gives priority to power local loads, the excess energy is used to charge the battery and the remaining energy is fed into the grid.
  • Page 44 PowerWalker User Manual b) Limited PV power If there is not enough PV energy to cover all the consumption, all the PV energy is used by the loads and the insufficient part is supplied by the battery. The remaining part is then supplied by the grid.

  • Page 45: Feed-In Priority Mode

    PowerWalker User Manual 5.2.2 Feed-in Priority Mode Refer to 6.4 Quick Setup of App Setting Guide, select ‘Feed-in Priority’ under Work Mode. In this mode, the priority of PV energy consumption is Load > Grid > Battery, i.e. the energy produced by PV is prioritised to supply local loads, excess energy is fed into the grid and the remaining energy is used to charge the battery.
  • Page 46 PowerWalker User Manual c) No PV Input The inverter will first discharge the battery energy for the domestic load when there is no PV input (such as in the evening, on cloudy or rainy days). If the demand is not met, the loads will consume grid energy.

  • Page 47: Back-Up Mode

    PowerWalker User Manual 5.2.3 Back-up Mode Under this mode, the priority of PV energy consumption will be Battery > Load > Grid. This mode aims at charging the battery quickly, and at the same time, you can choose whether to allow AC to charge the battery.
  • Page 48 PowerWalker User Manual Allow the grid charging In this situation, the battery can be charged both with PV and the grid. To enable the grid charging, go to Console > Hybrid Setting > Battery. a) Wealthy PV power When PV energy is wealthy, PV charges the battery first, then meets the load, and the rest is fed into the grid.

  • Page 49: Time-Based Control

    PowerWalker User Manual 5.2.4 Time-based control In above work modes (Self-Consumption, Feed-in Priority and Backup), they all provide Time-based Control for setting up the battery charge / discharge time, frequency (once or every day), power (watts) and state of charge (SoC, %). The inverter will prioritize charging and discharging of the battery according to the settings of the Time-based Control.
  • Page 50 PowerWalker User Manual b) Limited PV power When PV energy is limited, BACKUP loads are first powered by PV and then supplemented by battery. BACKUP is the sequence of BACKUP load consumption. NOTICE • Under this mode, please complete the output voltage and frequency settings.

  • Page 51: Unbalanced Output

    PowerWalker User Manual 5.3 Unbalanced Output 5.3.1 On-grid Unbalanced Output The intelligent hybrid inverter can provide unbalanced output to meet your needs when 1) The normal load is single phase. 2) The three phases of the normal load are equal or unbalanced.

  • Page 52: Back-Up Unbalanced Output

    PowerWalker User Manual 5.3.2 Back-up Unbalanced Output The intelligent hybrid inverter can provide unbalanced output to meet the demand of critical load when 1) The critical load is single phase. 2) The three phases of the critical load are equal or unbalanced.

  • Page 53: Led Indicators

    PowerWalker User Manual 5.4 LED Indicators This section describes the LED panel. LED indicator includes PV, BAT, GRID, BACKUP, COM, ALARM indicators. It includes the explanation of indicator states and summary of indicator states under the running state of the machine.
  • Page 54 PowerWalker User Manual Grid Backup ALARM Details Code PV normal ● ◎ ◎ ◎ ◎ ○ No PV ○ ◎ ◎ ◎ ◎ ○ PV over voltage PV under voltage PV irradiation weak ★ ◎ ◎ ◎ ◎ ○ PV string reverse...
  • Page 55 PowerWalker User Manual Grid Backup ALARM Details Code RS485/DB9/BLE/USB ◎ ◎ ◎ ◎ ★ ◎ Inverter over temperature Fan abnormal Inverter in power limit state ◎ ◎ ◎ ◎ ◎ ★ Data logger lost Meter lost Remote off PV insulation abnorma...

  • Page 56: App Setting Guide

    PowerWalker User Manual 6. aPP settiNg guide 6.1 Download App Scan the QR code on the inverter to download the APP App Setting Guide. Download APP from the App Store or Google Play. The APP should access some permissions such as device’s location. You need to grant all access rights in all pop-up windows when installing the APP or setting your phone.

  • Page 57: Local Connection

    PowerWalker User Manual 6.3 Local connection • Access Permission Before using the local setting, the APP should access some permissions. ( You need to grant all access rights in all pop-up windows when installing the APP or setting your phone.) When the APP asks for permission, please click 'Allow'.

  • Page 58: Quick Setup

    PowerWalker User Manual 6.4 Quick Setup Click 'Quick Setup' icon on the left corner. Step 1: Connect to your WiFi network 1) Click WIFI SSID to search for your local network and enter the password. 2) Press 'Start the configuration'. It will take about half minute to complete. After it shows the configuration is successful, the symbol of ✘...

  • Page 59: Console

    PowerWalker User Manual Step 3: Setup the Power Limit XXXXXXXX 1) Select Power Control type: CTs or Meter 2) Select Meter location 3) Select Meter Type Step3 Set parameters for the inverter to connect to the power limit. 4) Select Power Flow Direction...

  • Page 60: Maintenance

    PowerWalker User Manual 7. maiNteNaNce CAUTION Before maintaining and commissioning inverter and its peripheral distribution unit, switch off all the charged terminals of the inverter and wait at least 10 minutes after switching off the inverter. 7.1 Routine Maintenance Maintain...

  • Page 61: Inverter Troubleshooting

    PowerWalker User Manual 7.2 Inverter Troubleshooting When the inverter has an exception, its warning and handling methods are shown below. Code Alarm Information Suggestions 1) If the alarm occurs occasionally, possibly the power grid Grid over voltage voltage is abnormal for a short time, and no action is required.
  • Page 62 PowerWalker User Manual 1) If the alarm occurs occasionally, possibly the power grid voltage is abnormal for a short time, and no action is required. 2) If the alarm occurs repeatedly, pls. refer to the suggestions Inverter relay or measures of Grid over voltage. and the inverter fails to abnormal generate power, contact the customer service center.
  • Page 63 PowerWalker User Manual 1) If the alarm occurs occasionally, the inverter can be automatically recovered and no action is required. Inverter abnormal 2) If the alarm occurs repeatedly, the inverter cannot work properly. Pls. contact the customer service center. 1) If the alarm occurs occasionally, the inverter can be automatically recovered and no action is required.
  • Page 64 PowerWalker User Manual 1) Check whether the battery is disconnected. 2) Check whether the battery is well connected with the inverter. Communication 3) Confirm that the battery is compatible with the inverter. It error (Inverter- is recommended to use CAN communication.

  • Page 65: Removing The Inverter

    PowerWalker User Manual 7.3 Removing the Inverter WARNING Before removing DC input connector, double check DC input switch is turned to OFF to avoid inverter damage and personal injury. Perform the following procedures to remove the inverter: Step 1. Disconnect all cables from the inverter, including communications cables, DC input power cables, AC output power cables, and PGND cable, as shown below.
  • Page 66 PowerWalker User Manual Step 2. Remove the inverter from the mounting bracket. Step 3. Remove the mounting bracket.

  • Page 67: Technical Specifications

    PowerWalker User Manual 8. tecHNical sPecificatioN Model Solar Inverter SAN 6k Solar Inverter SAN 10k Rated Output Power 6 000 W 10 000 W Parallel Operation Up to 9 Units Compatible Battery Type Lithium-ion / Lead-acid Minimum Requirement of Battery Con-...
  • Page 68 PowerWalker User Manual Battery Input (Charging) Maximum Charge Power 9 000 W 15 000 W Maximum Charge Power from Grid to 6 000 W 10 000 W Battery Nominal DC Voltage 250 V ~ 600 V Battery Voltage Range 150 V ~ 600 V...
  • Page 69 - coNtact us - www.powerwalker.com +49 (0)2131 - 5952110 by BlueWalker GmbH...

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