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SUN2000-(55KTL, 60KTL) Series
User Manual

5 Electrical Connections

Issue 06 (2020-01-03)

Copyright © Huawei Technologies Co., Ltd.

47

1.

After the positive and negative connectors snap into place, pull test to the DC input cables
is recommended.

2.

Only after at least one PV string correctly connects to the MPPT1 circuit, can the
SUN2000 enable the DC input detection function. Therefore, you are required to connect
DC input power cables to the MPPT1 circuit first.

Figure 5-18

Connecting DC input power cables

If polarity of the DC input power cable is reversed and the DC switch is ON, do not turn off
the DC switch immediately or unplug positive and negative connectors. The device may be
damaged if you do not follow the instruction. The caused equipment damage is beyond the
warranty scope. Wait until the solar irradiance declines and the PV string current reduces to
below 0.5 A, and then turn off the two DC switches and remove the positive and negative
connectors. Correct the string polarity before reconnecting the string to the SUN2000.

----End

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Summary of Contents for SUN2000-55KTL

Page 1: ...SUN2000 55KTL 60KTL Series User Manual Issue 06 Date 2020 01 03 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ...tomer All or part of the products services and features described in this document may not be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this document is subject to c...

Page 3: ...electrical technicians Symbol Conventions The symbols that may be found in this document are defined as follows Symbol Description Indicates a hazard with a high level of risk which if not avoided will result in death or serious injury Indicates a hazard with a medium level of risk which if not avoided could result in death or serious injury Indicates a hazard with a low level of risk which if not...

Page 4: ...Issue 06 2020 01 03 Updated 3 Inverter Storage Added 6 5 Power Off for Troubleshooting Issue 05 2018 04 26 Added description about the metal stamping forming contact Issue 04 2018 01 15 Added B Grid Codes Issue 03 2017 10 30 Updated 3 Inverter Storage Updated 5 2 Crimping the OT Terminal Issue 02 2017 07 30 Updated 5 3 Connecting a ground cable Updated 10 Technical Specifications Issue 01 2017 06 ...

Page 5: ...Mounting Bracket 22 4 5 Installing the SUN2000 26 5 Electrical Connections 31 5 1 Precautions 31 5 2 Crimping the OT Terminal 31 5 3 Connecting a ground cable 33 5 4 Opening the Maintenance Compartment Door 34 5 5 Connecting AC Output Power Cables 36 5 6 Connecting DC input power cables 41 5 7 Connecting the Communications Cable 48 5 7 1 Communication Mode Description 48 5 7 2 Connecting the RS485...

Page 6: ...ng Grid Parameters 74 7 2 1 2 Setting Protection Parameters 74 7 2 1 3 Setting Feature Parameters 75 7 2 2 Operations Related to the Special User 83 7 2 2 1 Setting Grid Parameters 83 7 2 2 2 Setting Protection Parameters 86 7 2 2 3 Setting Feature Parameters 88 7 2 2 4 Setting Power Adjustment Parameters 91 8 System Maintenance 94 8 1 Routine Maintenance 94 8 2 Troubleshooting 95 9 Handling the I...

Page 7: ...ecautions in this document for installation cable connecting and maintenance Operation in extreme environments which are not covered in this document Unauthorized modifications to the product or software code Installation or use in environments which are not specified in related international standards Personnel Requirements Only certified electricians are allowed to install and operate the SUN200...

Page 8: ...enance compartment door of the chassis before connecting cables Do not perform any operation on other components inside the chassis except connecting the PE cable AC power cables and communications cables Cable Connections Before connecting cables ensure that the inverter is secured in position and not damaged in any way Otherwise electric shocks or fire may occur Ensure that all electrical connec...

Page 9: ...d associated documents to operate the inverter Maintain the inverter with sufficient knowledge of this document and proper tools and testing equipment Before performing maintenance tasks power off the inverter and wait at least 5 minutes Place temporary warning signs or erect fences to prevent unauthorized access to the maintenance site Rectify any faults that may compromise the inverter security ...

Page 10: ...nerated by PV strings into AC power and feeds the power into the power grid Models Figure 2 1 Model number description SUN2000 55KTL IN HV D1 Figure 2 2 Model number description SUN2000 60KTL HV D1 001 Network Application The SUN2000 applies to grid tied PV systems for commercial rooftops and large plants Typically a grid tied PV system consists of PV strings grid tied inverters AC power distribut...

Page 11: ...transformer E Power grid Supported Power Grids The SUN2000 only supports the IT power grid mode as shown in Figure 2 4 Figure 2 4 Power grid modes The SUN2000 applies to the AC power system with the neutral point grounding of the box type transformer The SUN2000 itself does not connect to any neutral wire 2 2 Appearance SUN2000 Dimensions Figure 2 5 shows the SUN2000 dimensions ...

Page 12: ...06 2020 01 03 Copyright Huawei Technologies Co Ltd 6 Figure 2 5 SUN2000 dimensions Front view 2 2 Appearance shows the SUN2000 front view Figure 2 6 Front view 1 Maintenance compartment door 2 LED indicator 3 Host panel Table 2 1 describes the LED indicators ...

Page 13: ... of each MPPT circuit is less than 600 V Grid tied indicator Steady green The SUN2000 connects to the power grid Green off The SUN2000 does not connect to the power grid Communicati ons indicator Blinking green The SUN2000 receives communications data normally Green off The SUN2000 receives no communications data for 10s Alarm Maint enance indicator Alarm status Blinking red at long intervals on f...

Page 14: ... on the SUN2000 app installed on a device connected to the SUN2000 by a Bluetooth module WLAN module or USB data cable If an alarm occurs during local maintenance the Alarm Maintenance LED shows the local maintenance status first After the USB flash drive Bluetooth module WLAN module or USB data cable is removed the LED shows the alarm status Bottom View Figure 2 7 shows the SUN2000 bottom view Fi...

Page 15: ...ating the SUN2000 Burn warning Do not touch a running SUN2000 because it generates high temperatures on the shell Delay discharge High voltage exists after the SUN2000 is powered on Only qualified and trained electrical technicians are allowed to perform operations on the SUN2000 Residual voltage exists after the SUN2000 is powered off It takes 5 minutes for the SUN2000 to discharge to the safe vo...

Page 16: ...tdown command 2 Turn off the downstream AC switch 3 Turn off the two DC switches at the bottom SUN2000 serial number label Indicates the SUN2000 serial number Weight label The SUN2000 needs to be carried by more than one person or using a pallet truck Note a Fittings delivered with the SUN2000 contain the label of DC terminal operation warning You are advised to attach the label at the bottom of t...

Page 17: ...le Figure 2 9 Nameplate 1 Trademark and product model 2 Important technical specifications 3 Compliance symbols 4 Company name and country of manufacture The certification marks on the nameplate will be subject to the actual product 2 4 Working Principle Conceptual Diagram The SUN2000 receives inputs from eight PV strings Then the inputs are grouped into four MPPT routes inside the SUN2000 to trac...

Page 18: ...rotection is supported on both the DC and AC sides Figure 2 10 shows the SUN2000 conceptual diagram Figure 2 10 SUN2000 conceptual diagram Working Modes The SUN2000 can work in standby operating or shutdown mode Figure 2 11 shows the relationship between the three working modes Figure 2 11 SUN2000 working modes ...

Page 19: ...n mode after detecting a shutdown command or a fault after startup Operating In operating mode The SUN2000 converts DC power from PV strings into AC power and feeds the power to the power grid The SUN2000 tracks the maximum power point to maximize the PV string output The SUN2000 enters the shutdown mode after detecting a fault or a shutdown command and enters the standby mode after detecting that...

Page 20: ...kage with the desiccant bag and seal it using tape Keep the storage temperature at 40 C to 70 C and the humidity at 5 95 RH The air must not contain corrosive or flammable gases The solar inverter should be stored in a clean and dry place and be protected from dust and water vapor corrosion The solar inverter must be protected against rain and water A maximum of five inverters can be stacked Do no...

Page 21: ...r the inverter model is not what you requested do not unpack the package and contact your supplier as soon as possible Figure 4 1 Position of the inverter model label 1 Position of the model label You are advised to remove the packing materials within 24 hours before installing the inverter Package Contents After unpacking the inverter check that the contents are intact and complete If any damage ...

Page 22: ...liers Wire stripper Flat head screwdriver Head 0 6 mm x 3 5 mm Rubber mallet Utility knife Cable cutter Crimping tool used to crimp metal cold forming contacts Model UTXTC0001 or H4TC0001 manufacturer Amphenol Crimping tool used to crimp metal stamping forming contacts Model UTXTC0002 manufacturer Amphenol RJ45 crimping tool Removal wrench Model UTXTWA001 manufacturer Amphenol Removal wrench Model...

Page 23: ...ategory Materials Multimeter DC voltage measurement range 1500 V DC Marker Measuring tape Bubble or digital level Hydraulic pliers Heat shrink tubing Heat gun Cable tie N A Personal protective equipment PPE Safety gloves Safety goggles Anti dust respirator Safety shoes N A N A Choose one from UTXTWA001 and H4TW0005 ...

Page 24: ... in an area of people activities such as a parking lot station factory building or residential area install a protective net outside the equipment and erect a safety warning sign to isolate the equipment The purpose is to avoid personal injury or property loss caused by contact with the equipment by nonprofessionals or other reasons during the operation of the equipment Environment Requirements Th...

Page 25: ...performance because the noise generated by the SUN2000 is noticeable Installation Angle Requirements Install the SUN2000 vertically or at a maximum back tilted angle of 15 degrees to facilitate heat dissipation Do not install the SUN2000 at forward tilted excessive back tilted side tilted horizontal or upside down positions Figure 4 3 Installation angle Installation Space Requirements The SUN2000 ...

Page 26: ... and maintaining the SUN2000 in future it is recommended that the bottom clearance be between 600 mm and 730 mm If you have any questions about the distance consult the local technical support engineers When installing multiple SUN2000s install them in horizontal mode if sufficient space is available and install them in triangle mode if no sufficient space is available Stacked installation is not ...

Page 27: ... 55KTL 60KTL Series User Manual 4 Installation Issue 06 2020 01 03 Copyright Huawei Technologies Co Ltd 21 Figure 4 6 Triangle installation mode recommended Figure 4 7 Stacked installation mode not recommended ...

Page 28: ...Figure 4 8 Mounting bracket dimensions The SUN2000 mounting bracket has four groups of tapped holes each group containing four tapped holes Mark any hole in each group based on site requirements and mark four holes in total Two round holes are preferred Before installing the mounting bracket remove the security torx wrench from the mounting bracket and save for later use Figure 4 9 Removing a secu...

Page 29: ...00s are M12x60 expansion bolts and M12x40 bolt assemblies Wall mounted Installation Step 1 Determine the positions for drilling holes using the mounting bracket Level the positions of mounting holes using a bubble or digital level and mark the positions with a marker Figure 4 10 Determining hole positions Step 2 Drill holes using a hammer drill and install expansion bolts Figure 4 11 Drilling a ho...

Page 30: ...oned drill new set of the holes Level the head of the expansion sleeve with the concrete wall after removing the bolt spring washer and flat washer Otherwise the mounting bracket will not be securely installed on the concrete wall Step 3 Align the mounting plate holes with the drilled holes insert expansion bolts into the holes through the mounting plate and then tighten the expansion bolts Figure...

Page 31: ...es using a hammer drill You are advised to apply anti rust paint on the hole positions for protection Figure 4 14 Drilling holes Step 3 Align the mounting plate holes with the drilled holes insert bolt assemblies flat washers spring washers and M12x40 bolts into the holes through the mounting plate and secure them using the shipped stainless steel nuts and flat washers ...

Page 32: ...nstallation requirements prepare M12 bolt assemblies by yourself and use them together with the delivered M12 nuts Figure 4 15 Securing a mounting bracket End 4 5 Installing the SUN2000 Prerequisites Before installing the SUN2000 take it out from the packing case and move it to the installation position To prevent device damage and personal injury keep balance when moving the SUN2000 because it is...

Page 33: ...you can mount the SUN2000 onto the mounting bracket directly go to Step 3 and then Step 5 Step 2 If you cannot mount the SUN2000 onto the mounting bracket directly go to Step 3 and then Step 6 Step 3 Ensure that minimum of two people lift one SUN2000 and turn it upright Move the SUN2000 with handles at the top and bottom To prevent device damage and personal injury keep balance when lifting the SU...

Page 34: ...Installation Issue 06 2020 01 03 Copyright Huawei Technologies Co Ltd 28 Figure 4 17 Lifting a SUN2000 The figure is for reference only Step 5 Install the SUN2000 on the mounting bracket and align the SUN2000 chassis with the mounting bracket ...

Page 35: ...lation Issue 06 2020 01 03 Copyright Huawei Technologies Co Ltd 29 Figure 4 18 Mounting the SUN2000 onto a mounting bracket Step 6 Tighten the two antitheft screws using a security torx wrench Figure 4 19 Tightening antitheft screws End Precautions ...

Page 36: ...dential area install a protective net outside the equipment and erect a safety warning sign to isolate the equipment The purpose is to avoid personal injury or property loss caused by contact with the equipment by nonprofessionals or other reasons during the operation of the equipment If the solar inverter has not been running for more than half a year after being mounted it must be checked and te...

Page 37: ...erform electrical terminations Wear proper PPE at all time when terminating cables The cable colors shown in the electrical connection diagrams provided in this chapter are for reference only Select cables in accordance with local cable specifications green and yellow cables are only used for grounding 5 2 Crimping the OT Terminal Requirements for the OT Terminal If a copper cable is used use a co...

Page 38: ...ble connection reliability The copper to aluminum adapter terminal or an aluminum wiring terminal with a copper to aluminum adapter washer must comply with IEC61238 1 Do not mix up the aluminum and copper sides of the copper to aluminum adapter washer Ensure that the aluminum side of the washer contacts the aluminum wiring terminal and the copper side contacts the AC terminal block Figure 5 1 Requ...

Page 39: ...wing figure uses heat shrink tubing as an example When using the heat gun protect devices from being scorched Figure 5 2 Crimping the OT Terminal 1 Cable 2 Core wire 3 Heat shrink tubing 4 OT terminal 5 Hydraulic pliers 6 Heat gun 5 3 Connecting a ground cable Prerequisites The ground cable and OT terminal are available Ground cable You are advised to use an outdoor copper cable with a conductor c...

Page 40: ...re two ground points on the chassis shell and you only need to use either of them It is recommended that the ground cable be connected to a nearby ground point For a system with multiple SUN2000s connected in parallel connect the ground points of all SUN2000s to ensure equipotential connections to ground cables Procedure Step 1 Crimp the OT terminal Step 2 Secure the ground cable using the ground ...

Page 41: ...r on rainy or snowy days take protective measures to prevent rain or snow entering the maintenance compartment If it is impossible to take protective measures do not open the maintenance compartment door in rainy or snowy days Do not leave extra hardware in the maintenance compartment Procedure Step 1 Partially loosen the two screws on the maintenance compartment door Figure 5 4 Loosening screws I...

Page 42: ... hang it on the hook of the chassis door Figure 5 6 Removing a cover End 5 5 Connecting AC Output Power Cables Prerequisites A three phase AC switch needs to be configured outside the AC side of the SUN2000 To ensure that the SUN2000 can safely disconnect from the power grid under abnormal conditions select an appropriate overcurrent protection device according to local power distribution regulati...

Page 43: ... SUN2000 55KTL HV D1 001 the residual current value to trigger the switch should be greater than 660 mA Context If you connect a ground cable to the ground point on the chassis shell you are advised to use a three core L1 L2 and L3 outdoor cable If you connect a ground cable to the ground point in the maintenance compartment you are advised to use a four core L1 L2 L3 and PE outdoor cable You need...

Page 44: ...nt Figure 5 7 Three core cable A Core wire B Insulation layer C Jacket Figure 5 8 Four core cable Step 2 Crimp the OT terminal Step 3 Route the cable through the waterproof connector For ease of connecting the AC output power cable you are advised to remove the nut assembly from the AC terminal and save it for later use and then route the cable through the waterproof connector ...

Page 45: ...Electrical Connections Issue 06 2020 01 03 Copyright Huawei Technologies Co Ltd 39 Figure 5 9 Routing cables Step 4 Land the AC output power cable in the terminal block and tighten the nuts with a torque wrench to achieve a proper torque value ...

Page 46: ...olid electrical connections Failing to do so may cause SUN2000 malfunction and damage to its terminal block even starting thermal events If the AC output power cables are subject to a pulling force because the inverter is not installed stably ensure that the last cable that bears the stress is the PE cable Figure 5 10 Connecting an AC output power cable three core cable ...

Page 47: ...aling nut and seal the cable gland End 5 6 Connecting DC input power cables Prerequisites Before connecting DC input power cables ensure that the DC voltage is within the safe range lower than 60 V DC and that the two DC switches on the SUN2000 are OFF Failing to do so may result in electric shocks When the SUN2000 is grid tied it is not allowed to work on DC circuit such as connecting or disconne...

Page 48: ...g the installation of PV strings and SUN2000 the positive or negative terminals of PV strings may be short circuited to ground if power cables are not properly installed or routed In this case an AC or DC short circuit may occur and damage the SUN2000 The caused equipment damage is beyond the warranty scope Context DC terminal selection Figure 5 12 shows the DC terminals at the bottom of the SUN20...

Page 49: ... Recommended DC input power cable specifications Cable Type Conductor Cross Sectional Area mm2 Cable Outer Diameter mm Range Recommended value PV cable that meets the 1500 V standard 4 0 6 0 12 10 AWG 4 0 12 AWG 4 5 7 8 Cables with high rigidity such as armored cables are not recommended because poor contact may be caused by the bending of the cables Procedure Step 1 Prepare the positive and negat...

Page 50: ... the metal contact types Do not mix up the tools Crimp the metal cold forming contacts using crimping tool UTXTC0001 recommended or H4TC0001 When choosing H4TC0001 do not use the locator Crimp the metal stamping forming contacts using crimping tool UTXTC0002 Figure 5 13 Locator 1 Locator Figure 5 14 Preparing positive and negative connectors using metal cold forming contacts 1 Positive metal conta...

Page 51: ...g 2 Negative metal contact stamping forming 3 Positive connector 4 Negative connector After the positive and negative metal terminals snap into place pull the DC input power cables back to ensure that they are connected securely Step 2 Tighten the locking nuts on the positive and negative connectors Figure 5 16 Locking a nut Step 3 Use a multimeter to measure the DC voltage between the positive an...

Page 52: ...e DC input polarity is incorrect Correct the polarity If the voltage is greater than 1500 V too many PV modules configured to the same string Remove some PV modules Step 4 Pull out the blue dustproof plugs from the ends of the DC input connectors Before performing Step 5 ensure that the two DC switches are OFF Step 5 Insert the positive and negative connectors into the corresponding positive and n...

Page 53: ...er cables to the MPPT1 circuit first Figure 5 18 Connecting DC input power cables If polarity of the DC input power cable is reversed and the DC switch is ON do not turn off the DC switch immediately or unplug positive and negative connectors The device may be damaged if you do not follow the instruction The caused equipment damage is beyond the warranty scope Wait until the solar irradiance decli...

Page 54: ... Figure 5 19 shows the communication mode for a single SUN2000 Figure 5 19 Communication mode for a single SUN2000 Figure 5 20 shows the communication mode for multiple SUN2000s If multiple SUN2000s are used connect all the SUN2000s in daisy chain mode over an RS485 communications cable Figure 5 20 Communication mode for multiple SUN2000s The RS485 communication distance between the SUN2000 at the...

Page 55: ...ble by default The MBUS PLC communication mode is only applicable to medium voltage grid connection scenarios and non low voltage public grid connection scenarios industrial environment 5 7 2 Connecting the RS485 Communications Cable Description An RS485 communications cable can be connected in two ways Terminal block connection You are advised to use a DJYP2VP2 22 2x2x1 PC cable or a communicatio...

Page 56: ...initions of the RS485 terminal block Table 5 4 Pin definitions of the RS485 terminal block No Port Definition Description 1 RS485A IN RS485A differential signal 2 RS485A OUT RS485A differential signal 3 RS485B IN RS485B differential signal 4 RS485B OUT RS485B differential signal Connecting Cables to the Terminal Block Step 1 Remove an appropriate length of the jacket and core wire insulation layer...

Page 57: ...Huawei Technologies Co Ltd 51 Figure 5 22 Stripping an RS485 communications cable Step 2 Route the communications cable through the waterproof connector Figure 5 23 Routing cables Step 3 Remove the cable terminal base from the terminal block Connect the communications cable to the terminal base ...

Page 58: ...cables to a terminal base 1 RS485A IN 2 RS485A OUT 3 RS485B IN 4 RS485B OUT Step 4 Install the terminal base on the terminal block and connect the shield layer to the ground point When connecting the shielded cable crimp the OT terminal if required Figure 5 25 Connecting communications cables Step 5 Bind communications cables after connecting them ...

Page 59: ...inding communications cables Step 6 Tighten the sealing nut and seal the cable gland End RJ45 Connector Pin Definitions Figure 5 27 shows an RJ45 connector Figure 5 27 RJ45 connector Table 5 5 lists the RJ45 connector pin definitions Table 5 5 RJ45 connector pin definitions Pin Color Function 1 White and orange RS485A differential signal ...

Page 60: ... RS485A differential signal 5 White and blue RS485B differential signal 6 Green N A 7 White and brown N A 8 Brown N A Connecting a Cable to the RJ45 Network Port Step 1 Prepare an RJ45 connector Figure 5 28 Preparing an RJ45 connector 1 White and orange 2 Orange 3 White and green 4 Blue 5 White and blue 6 Green 7 White and brown 8 Brown Step 2 Route the communications cable through the waterproof ...

Page 61: ...020 01 03 Copyright Huawei Technologies Co Ltd 55 Figure 5 29 Routing cables Step 3 Insert the RJ45 connector into the RJ45 network port in the SUN2000 maintenance compartment Figure 5 30 Connecting communications cables Step 4 Bind communications cables after connecting them ...

Page 62: ...ight Huawei Technologies Co Ltd 56 Figure 5 31 Binding communications cables Step 5 Tighten the sealing nut and seal the cable gland End 5 8 Closing the Maintenance Compartment Door Procedure Step 1 Install the AC terminal cover Figure 5 32 Installing a cover Step 2 Retrieve the support bar ...

Page 63: ...ctions Issue 06 2020 01 03 Copyright Huawei Technologies Co Ltd 57 Figure 5 33 Retrieve the support bar Step 3 Close the maintenance compartment door and tighten the two screws on the door Figure 5 34 Tightening screws on the maintenance compartment door End ...

Page 64: ...ock sealing nut is tightened 8 The AC terminal cover is reinstalled 9 The maintenance compartment door is closed and the door screws are tightened 10 Unused DC input terminals are sealed 11 Unused USB ports are plugged with waterproof plugs 12 Unused waterproof connectors are plugged and the locking caps are tightened 6 2 DC Input Detection Function Description When SUN2000 detects an abnormal DC ...

Page 65: ...Table 6 1 LED indicator and buzzer status description PV Connection Indicator Status Buzzer Status Meaning Blinking red No sound DC input detection is in progress Blinking green No sound The DC input is normal Steady red Buzzing The DC input is abnormal Automatic Detection Following are the rules for starting automatic detection Initial automatic detection is triggered 2 minutes after at least one...

Page 66: ...000 app as showing below Once the DC input detection is triggered the detection process cannot be aborted or restarted until detection cycle completes Figure 6 2 DC input detection button 1 DC input detection button The audible alarm can be manually turned off by pressing DC input detection button twice The DC input detection only functions when the two DC switches on the SUN2000 are OFF 6 3 Power...

Page 67: ... You can modify the time over the NMS software installed on the PC that connects to the SUN2000 Step 2 Turn the DC switch at the bottom of the SUN2000 to ON Step 3 Optional Measure the temperatures at the joints between DC terminals and connectors using a point test thermometer To ensure that the DC terminals are in good contact check the temperatures at the joints between DC terminals and connect...

Page 68: ...l 6 System Commissioning Issue 06 2020 01 03 Copyright Huawei Technologies Co Ltd 62 Figure 6 4 Login screen Figure 6 5 Selecting a connection mode Step 5 Tap the user name area to switch between Common User Advanced User and Special User ...

Page 69: ...tolen or cracked If a password is lost devices cannot be accessed In these cases the user is liable for any loss caused to the PV plant During login if five consecutive invalid password attempts are made the interval between two consecutive attempts is less than 2 minutes the account will be locked for 10 minutes The password should consist of 6 characters Step 6 Enter the password and tap Log In ...

Page 70: ...rotocol and Address based on site requirements Baud rate can be set to 4800 9600 or 19200 RS485 protocol can be set to MODBUS RTU and Address can be set to any value in the range of 1 to 247 When multiple SUN2000s communicate with the SmartLogger over RS485 the RS485 addresses for all the SUN2000s on each RS485 route must be within the address range set on the SmartLogger and cannot be duplicate O...

Page 71: ...de power off the two SUN2000s After the SUN2000 powers off the remaining electricity and heat may still cause electric shocks and body burns Therefore put on personal protective equipment PPE and begin servicing the SUN2000 five minutes after the power off Procedure Step 1 Run a shutdown command on the SUN2000 APP SmartLogger or NMS For details see the SUN2000 APP User Manual or SmartLogger User M...

Page 72: ...c shocks or arcing may occur Procedure Step 1 Wear proper personal protective equipment PPE Step 2 If the solar inverter is not shut down due to a fault send a shutdown command on the SUN2000 app SmartLogger or management system If the solar inverter has shut down due to a fault go to the next step Step 3 Turn off the AC switch between the solar inverter and the power grid Step 4 Measure the DC cu...

Page 73: ... Ltd 67 Do not open the host panel for maintenance if the solar inverter is emitting odor or smoke or has obvious exceptions If the solar inverter does not emit odor or smoke and is intact repair or restart it based on the alarm handling suggestions Do not stand in front of the solar inverter during the restart End ...

Page 74: ...mmended Other brands may be incompatible Delete the script file immediately after use to reduce information disclosure risks 7 1 1 Exporting Configurations Procedure Step 1 On the SUN2000 APP tap Inverter Command Settings to generate a boot script file For details see the SUN2000 APP User Manual Step 2 Import the boot script file to a PC Optional The boot script file can be opened as a txt file as...

Page 75: ...cified in the boot script file View the LED indicator to determine the operating status Verify that the ciphertext in the boot script file matches the login password of the SUN2000 APP If they do not match and you insert the USB flash drive for five consecutive times the user account will be locked for 10 minutes Table 7 1 LED indicator description LED Indicator Status Meaning Green off There is n...

Page 76: ... USB port The system automatically identifies the USB flash drive and executes all commands specified in the boot script file View the LED indicator to determine the operating status Verify that the ciphertext in the boot script file matches the login password of the SUN2000 APP If they do not match and you insert the USB flash drive for five consecutive times the user account will be locked for 1...

Page 77: ...000 APP If they do not match and you insert the USB flash drive for five consecutive times the user account will be locked for 10 minutes Table 7 3 LED indicator description LED Indicator Status Meaning Green off There is no operation with a USB flash drive Blinking green at long intervals on for 1s and then off for 1s There is an operation with a USB flash drive Blinking green at short intervals ...

Page 78: ...to generate a boot script file For details see the SUN2000 APP User Manual Step 4 Import the boot script file to a computer Step 5 Replace the boot script file in the upgrade package with the one generated by the SUN2000 APP Step 6 Copy the extracted files to the root directory of the USB flash drive Step 7 Connect the USB flash drive to the USB port The system automatically identifies the USB fla...

Page 79: ...tual screen prevails The parameter list provided in this section includes all configurable parameters The parameter names value ranges and default values are subject to change The actual display prevails If you change the grid code some parameters may be restored to factory defaults After the grid code is changed check whether the previously set parameters are affected Delivering a reset shutdown ...

Page 80: ...try or region where the SUN2000 is used and the SUN2000 application scenario The default value varies with the model The displayed value prevails N A 2 Isolation Specifies the working mode of the SUN2000 according to the grounding status at the DC side and the connection status to the grid The default value varies with the grid code The displayed value prevails Input grounded with TF Input ungroun...

Page 81: ...o ensure device safety the SUN2000 detects the insulation resistance between the input side and the ground when it starts a self check If the detected value is less than the preset value the SUN2000 does not export power to the power grid MΩ 0 05 0 033 1 5 7 2 1 3 Setting Feature Parameters Procedure Step 1 Choose Function Menu Settings Feature Parameters to access the settings screen Figure 7 4 F...

Page 82: ...when MPPT multi peak scanning is set to Enable 3 RCD enhancing RCD refers to the residual current of the SUN2000 to the ground To ensure device security and personal safety RCD should comply with the standard If an AC switch with a residual current detection function is installed outside the SUN2000 this function should be enabled to reduce the residual current generated during SUN2000 running the...

Page 83: ...UN2000 shuts down The energy yield would be affected since it takes too long for the power to resume and SUN2000 to restart The parameter does not need to be set for crystalline silicon and filmy PV modules N A Crystalline silicon Crystalline silicon Film CPV 1 CPV 2 If PV module type is set to Crystalline silicon or Film the SUN2000 automatically detects the power of PV modules when they are shad...

Page 84: ...n interrupt shutdown The standards of certain countries and regions require that the SUN2000 must shut down after the communication is interrupted for a certain time N A Disable Disable Enable If Communication interrupt shutdown is set to Enable and the SUN2000 communication has been interrupted for a specified time set by Communication interruption duration the SUN2000 will automatically shut dow...

Page 85: ...s operating properly should be monitored to avoid inaccurate scanning caused by sunlight change If the current exceeds the specified value it is determined that the sunlight changes and the IV curves should be scanned again A 0 20 0 00 2 00 N A 13 Hibernate at night The SUN2000 monitors PV strings at night If Hibernate at night is set to Enable the monitoring function of the SUN2000 will hibernate...

Page 86: ...V string is abnormal such as the PV string is shaded or the energy yield decreases the SUN2000 generates an alarm to remind maintenance personnel to maintain the PV string in a timely manner N A Disable Disable Enable If PV strings are easily shaded you are advised to set String monitor to Disable to prevent false alarms 17 String detection low power delay Specifies the delay time for generating a...

Page 87: ... This parameter is displayed when String monitor is set to Enable 21 String detection starting power percentage Specifies the threshold for starting PV string exception detection The false alarms caused by fixed shadow shading can be controlled by changing this parameter 20 1 100 22 Shutdown at 0 power limit If this parameter is set to Enable the SUN2000 shuts down after receiving the 0 power limi...

Page 88: ...egions require that the SUN2000 should not disconnect from the power grid if the power grid experiences a short time failure The SUN2000 output power should be recovered immediately after the fault is rectified ms 3000 500 20000 N A 27 Adjust total energy yield Specifies the initial energy yield of the SUN2000 This parameter is used in SUN2000 replacement scenarios Set the initial energy yield of ...

Page 89: ... on the grid code The displayed value prevails Disable Enable N A 30 Buzzer If this parameter is set to Enable the buzzer buzzes when a DC input cable connection error is detected If this parameter is set to Disable the buzzer does not buzz when a DC input cable connection error is detected N A Enable Disable Enable N A 7 2 2 Operations Related to the Special User Description If you log in to the ...

Page 90: ...egion where the SUN2000 is used and the SUN2000 application scenario N A The default value varies depending on the model The displayed value prevails N A 2 Auto start upon grid recovery Specifies whether to allow the SUN2000 to automatically start after the power grid recovers N A The default value varies depending on the grid code The displayed value prevails Disable Enable 3 Grid connection dura...

Page 91: ...imit after the SUN2000 shuts down due to a fault V 45 Vn 95 Vn 6 Grid reconnection frequency upper limit The standards of certain countries and regions require that the SUN2000 must not export power to the power grid again when the grid frequency exceeds the value of Grid reconnection frequency upper limit after the SUN2000 shuts down due to a fault Hz The default value varies depending on the gri...

Page 92: ...ensation based on the cosφ P curve 90 100 Vn represents the rated voltage and Fn represents the rated frequency 7 2 2 2 Setting Protection Parameters Procedure Step 1 Choose Function Menu Settings Protection Parameters to access the parameters setting screen Figure 7 6 Protection Parameters special user End Parameter List The default values in the following table vary depending on the grid code Th...

Page 93: ...el 2 overvoltage protection threshold V 1 x Vn 1 36 x Vn 8 Level 2 OV protection time Specifies the level 2 overvoltage protection duration ms 50 7200000 9 Level 1 UV protection Specifies the level 1 undervoltage protection threshold V 0 15 x Vn 1 x Vn 10 Level 1 UV protection time Specifies the level 1 undervoltage protection duration ms 50 7200000 11 Level 2 UV protection Specifies the level 2 u...

Page 94: ...ion ms 50 7200000 23 Level 4 OV protection Specifies the level 4 overvoltage protection threshold V 1 x Vn 1 36 x Vn 24 Level 4 OV protection time Specifies the level 4 overvoltage protection duration ms 50 7200000 25 Level 3 UV protection Specifies the level 3 undervoltage protection threshold V 0 15 x Vn 1 x Vn 26 Level 3 UV protection time Specifies the level 3 undervoltage protection duration ...

Page 95: ...es prevail No Parameter Description Unit Value Range Remarks 1 LVRT When the power grid voltage is abnormally low for a short time the SUN2000 cannot disconnect from the power grid immediately and has to work for some time This is called LVRT N A Disable Enable N A 2 LVRT threshold Specifies the threshold for triggering LVRT V 50 Vn 92 Vn N A 3 LVRT undervoltage protection shield Specifies whether...

Page 96: ... Specifies whether to enable the active islanding protection function N A Disable Enable N A 7 Voltage rise suppression The standards of certain countries and regions require that the SUN2000 should prevent the grid voltage from rising by delivering reactive power and decreasing active power when the output voltage exceeds a certain value N A Disable Enable N A 8 Voltage rise suppression reactive ...

Page 97: ...ge rate protection threshold Hz s 0 1 2 5 This parameter is displayed if Frequency change rate protection is set to Enable 12 Frequency change rate protection time Specifies the frequency change rate protection duration s 0 2 20 0 13 Soft start time after grid failure Specifies the time for the power to gradually increase when the SUN2000 restarts after the power grid recovers s 20 800 N A 7 2 2 4...

Page 98: ...usts the SUN2000 power factor N A 1 000 1 000 0 800 U 0 800 1 000 N A 4 Trigger frequency of over frequency derating The standards of certain countries and regions require that the output active power of the SUN2000 be derated when the grid frequency exceeds a certain value Hz The default value varies depending on the grid code The displayed value prevails When the output frequency is 50 Hz the va...

Page 99: ...eractions Issue 06 2020 01 03 Copyright Huawei Technologies Co Ltd 93 No Parameter Description Unit Default Value Value Range Remarks 6 Recovery gradient of over frequency derating Specifies the power recovery gradient for overfrequency derating min 5 20 N A ...

Page 100: ...nverter are OFF If you need to open the maintenance compartment door in rainy or snowy days take protective measures to prevent rain and snow entering the maintenance compartment If it is impossible to take protective measures do not open the maintenance compartment door in rainy or snowy days Table 8 1 Maintenance list Item Check Method Maintenance Interval System cleanliness Check periodically t...

Page 101: ...ommissioning From then on perform the inspection once six months to a year Grounding reliability Check that ground cables are securely connected The first inspection is half a year after the initial commissioning From then on perform the inspection once six months to a year 8 2 Troubleshooting Alarm severities are defined as follows Major The inverter is faulty As a result the output power decreas...

Page 102: ...modules are connected in series to PV strings 7 and 8 and therefore the PV string open circuit voltage exceeds the inverter maximum operating voltage Cause ID 1 Reduce the number of PV modules connected in series to PV strings 1 and 2 until the open circuit voltage is less than or equal to the maximum inverter operating voltage After the PV array configuration is corrected the inverter alarm disap...

Page 103: ...ring is clean and not shielded from sunlight check whether any PV module is faulty 120 127 String 1 8 Reversed Cause ID 1 Major Cause ID 2 Warning Cause ID 1 The PV string is reversely connected Cause ID 2 Only a few PV modules are connected in series to the PV string and therefore the end voltage is lower than that of other PV strings Cause ID 1 Check whether the PV string is reversely connected ...

Page 104: ...unbalanced which triggers the protection for the internal control circuit of the inverter Cause ID 11 The power grid voltage changes sharply and the inverter input power fails to discharge in a short time which increases the internal voltage and triggers overvoltage protection Cause ID 12 15 An unrecoverable fault occurs on a circuit inside the inverter Cause ID 3 10 11 1 The inverter detects its ...

Page 105: ...nt surges to a value above the upper limit and the inverter protection is triggered Cause ID 13 14 16 1 The inverter detects its external working conditions in real time After the fault is rectified the inverter automatically recovers 2 If the alarm persists contact Huawei technical support Cause ID 20 1 Check the inverter output cable for short circuits 2 If the alarm persists contact Huawei tech...

Page 106: ...If the fault persists for a long time check the connection between the AC switch and the output power cable Cause ID 16 19 26 1 Check whether the grid tied voltage exceeds the upper threshold If yes contact the local power operator 2 If you have confirmed that the grid tied voltage exceeds the upper threshold and obtained the consent of the local power operator modify the overvoltage and undervolt...

Page 107: ...urs frequently check whether the power grid frequency is within the acceptable range If no contact the local power operator If yes log in to the SUN2000 app SmartLogger or NMS to modify the power grid overfrequency and underfrequency protection thresholds with the consent of the local power operator Cause ID 5 1 If the alarm occurs accidentally the power grid may be abnormal temporarily The invert...

Page 108: ...ation is poor or the ambient temperature exceeds the upper threshold improve the ventilation and heat dissipation 3 If the ventilation and ambient temperature both meet requirements contact Huawei technical support 322 Abnormal SPI Communi cation Major Cause ID 1 An unrecoverable fault occurs on a circuit inside the inverter Turn off the AC output switch and DC input switch Then turn on the AC out...

Page 109: ...ring does not properly connect to the MPPT2 circuit Cause ID 3 The PV string does not properly connect to the MPPT3 circuit Cause ID 4 The PV string does not properly connect to the MPPT4 circuit Check the PV string for reverse connection and cross connection 504 Software Version Unmatch Minor Cause ID 1 2 3 During inverter software upgrade the version of the software loaded is incorrect Check whe...

Page 110: ...he SUN2000 1 Disconnect all cables from the SUN2000 including RS485 communications cables DC input power cables AC output power cables and PGND cables 2 Remove the SUN2000 from the mounting bracket 3 Remove the mounting bracket 9 2 Packing the SUN2000 If the original packing materials are available put the SUN2000 inside them and then seal them by using adhesive tape If the original packing materi...

Page 111: ...HV D1 SUN2000 5 5KTL HV D1 001 SUN2000 6 0KTL HV D1 001 Maximum efficiency 99 00 99 00 Chinese efficiency 98 50 N A European efficiency N A 98 80 Input Item SUN2000 6 0KTL HV D1 SUN2000 5 5KTL HV D1 SUN2000 5 5KTL IN HV D1 SUN2000 5 5KTL HV D1 001 SUN2000 6 0KTL HV D1 001 Maximum input voltage 1500 V Maximum input current per MPPT 22 A Maximum short circuit current per MPPT 30 A Maximum inverter b...

Page 112: ...1450 V Full power MPPT voltage range 880 1275 V Rated input voltage 1080 V Number of inputs 8 Number of MPP trackers 4 Output Item SUN2000 6 0KTL HV D1 SUN2000 5 5KTL HV D1 SUN2000 5 5KTL IN HV D1 SUN2000 5 5KTL HV D1 001 SUN2000 6 0KTL HV D1 001 Rated active power 60 000 W 55 000 W 55 000 W 55 000 W 60 000 W Maximum apparent power 66 000 VA 60 000 VA 66 000 VA 66 000 VA 66 000 VA Maximum active p...

Page 113: ...43 7 A 48 A 48 A 48 A Power factor 0 8 leading 0 8 lagging Maximum total harmonic distortion rated power 3 Protection Item SUN2000 6 0KTL HV D1 SUN2000 5 5KTL HV D1 SUN2000 5 5KTL IN HV D1 SUN2000 5 5KTL HV D1 001 SUN2000 6 0KTL HV D1 001 Input DC switch Supported Islanding protection Supported Output overcurrent protection Supported Input reverse polarity protection Supported PV string fault dete...

Page 114: ...2000 5 5KTL HV D1 001 SUN2000 6 0KTL HV D1 001 Display LED Bluetooth module app USB data cable app WLAN module app RS485 Supported MBUS PLC Supported Common Parameters Item SUN2000 6 0KTL HV D1 SUN2000 5 5KTL HV D1 SUN2000 5 5KTL IN HV D1 SUN2000 5 5KTL HV D1 001 SUN2000 6 0KTL HV D1 001 Dimensions W x H x D 930 mm x 600 mm x 270 mm Weight About 63 kg About 62 kg Operating temperature 25 C to 60 C...

Page 115: ...al 10 Technical Specifications Issue 06 2020 01 03 Copyright Huawei Technologies Co Ltd 109 Item SUN2000 6 0KTL HV D1 SUN2000 5 5KTL HV D1 SUN2000 5 5KTL IN HV D1 SUN2000 5 5KTL HV D1 001 SUN2000 6 0KTL HV D1 001 Topology Transformerless ...

Page 116: ...hnologies Co Ltd 110 A Domain Name List of Management Systems The list is subject to change Table A 1 Domain names of management systems Domain Name Data Type Scenario intl fusionsolar huawei com Public IP address FusionSolar hosting cloud NOTE The domain name is compatible with cn fusionsolar huawei com Chinese mainland ...

Page 117: ...3 ABNT NBR 16149 MV800 Brazil medium voltage power grid 4 UTE C 15 712 1 MV800 France power grid Table B 2 lists the grid codes that the SUN2000 55KTL HV D1 supports Table B 2 Grid codes for the SUN2000 55KTL HV D1 No Grid Code Description 1 G59 England MV800 G59 medium voltage power grid 2 AS4777 MV800 Australia medium voltage power grid 3 IEC61727 MV800 IEC61727 medium voltage power grid 4 BDEW ...

Page 118: ... B 3 Grid codes for the SUN2000 55KTL IN HV D1 No Grid Code Description 1 G59 England MV800 G59 medium voltage power grid 2 AS4777 MV800 Australia medium voltage power grid 3 INDIA MV800 India medium voltage power grid 4 IEC61727 MV800 IEC61727 medium voltage power grid 5 BDEW MV800 Germany medium voltage power grid 6 ABNT NBR 16149 MV800 Brazil medium voltage power grid 7 UTE C 15 712 1 MV800 Fra...

Page 119: ...istribution MV800 Jordan power grid 12 Egypt ETEC MV800 Egypt power grid 13 DUBAI MV800 Dubai power grid 14 SAUDI MV800 Saudi Arabia power grid 15 CEI0 21 MV800 Italy power grid 16 IEC 61727 MV800 60Hz General 17 Israel MV800 Israel power grid 18 CEI0 16 MV800 Italy medium voltage power grid 19 ZAMBIA MV800 Zambia medium voltage power grid 20 KENYA_ETHIOPIA_MV800 Kenya medium voltage power grid an...

Page 120: ...medium voltage power grid 6 UTE C 15 712 1 MV800 France power grid 7 Chile MV800 Chile power grid 8 Mexico MV800 Mexico power grid 9 EN50438 TR MV800 Turkey power grid 10 TAI PEA MV800 Thailand power grid 11 Philippines MV800 Philippines power grid 12 Malaysian MV800 Malaysia power grid 13 NRS 097 2 1 MV800 South Africa power grid 14 DUBAI MV800 Dubai power grid 15 EN50438_IE MV800 Ireland power g...

Page 121: ...s Co Ltd 115 No Grid Code Description 25 RD1699 661 MV800 Spain medium voltage power grid 26 PO12 3 MV800 Spain medium voltage power grid 27 Vietnam MV800 Vietnam medium voltage power grid 28 Chile PMGD MV800 Chile PMGD medium voltage power grid 29 TAIPOWER MV800 Taiwan power medium voltage power grid ...

Page 122: ...ies Co Ltd 116 C Acronyms and Abbreviations C CCO central controller L LED light emitting diode M MPP maximum power point MPPT maximum power point tracking P PID potential induced degradation PLC power line communication PV photovoltaic R RCD residual current device W WEEE waste electrical and electronic equipment ...

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