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SUN2000-43KTL-IN-C1 
User Manual 

4 System Installation 

 

Issue 07 (2018-05-06) 

Copyright © Huawei Technologies Co., Ltd. 

35 

 

 

The SUN2000 mounting bracket has 16 tapped holes in four groups. Mark any hole in each group based 
on site requirements and mark four holes in total. Two round holes are preferred. 

Procedure 

Step 1

 

Remove the security torx wrench from the mounting bracket and set it aside. 

Figure 4-25

 

Removing a security torx wrench 

 

 

Step 2

 

Determine the positions for drilling holes using the mounting bracket. Level the hole positions 
using a level, and mark the hole positions using a marker. 

Figure 4-26

 

Determining hole positions 

 

 

Step 3

 

Drill holes using a hammer drill. 

 

You are advised to apply anti-rust paint on the hole positions for protection. 

Summary of Contents for SUN2000-43KTL-IN-C1

Page 1: ...SUN2000 43KTL IN C1 User Manual Issue 07 Date 2018 05 06 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ...stomer 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 ...

Page 3: ...PV plant personnel and qualified electrical technicians Symbol Conventions The symbols that may be found in this document are defined as follows Symbol Description Indicates an imminently hazardous situation which if not avoided will result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially haz...

Page 4: ...ecting DC Input Power Cables Issue 06 2017 11 14 Added the description of rubber fittings and updated 5 3 Connecting AC Output Power Cables Issue 05 2017 09 25 Added the requirements for OT terminals in 5 3 Connecting AC Output Power Cables Issue 04 2017 07 15 Updated 4 3 Wall mounting the SUN2000 Updated 4 4 Support mounting the SUN2000 Updated 5 2 Connecting the Ground Cable PE Updated 10 Techni...

Page 5: ...ng the Inverter 25 4 3 3 Installing the Mounting Bracket 26 4 3 4 Installing the SUN2000 29 4 4 Support mounting the SUN2000 32 4 4 1 Determining the Installation Position 32 4 4 2 Moving the Inverter 34 4 4 3 Installing the Mounting Bracket 34 4 4 4 Installing the SUN2000 37 5 Connecting Cables 38 5 1 Opening the Maintenance Compartment Door 38 5 2 Connecting the Ground Cable PE 40 5 3 Connecting...

Page 6: ...ations with a USB Flash Drive 74 7 1 1 Exporting Configurations 74 7 1 2 Importing Configurations 76 7 1 3 Exporting Data 77 7 1 4 Upgrading 77 7 2 Operations with a SmartLogger 79 7 3 Operations with the NMS 79 7 4 Operations with the SUN2000 APP 79 8 Maintenance 80 8 1 Routine Maintenance 80 8 2 Troubleshooting 81 9 Handling the SUN2000 90 9 1 Removing the SUN2000 90 9 2 Packing the SUN2000 90 9...

Page 7: ...tions 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 SUN2000 Op...

Page 8: ...ce 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 connection...

Page 9: ...ssociated 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 per...

Page 10: ...Figure 2 1 shows a model number of the SUN2000 Figure 2 1 Model number description Table 2 1 SUN2000 model and corresponding rated output power and voltage Model Rated Output Power Rated Output Voltage SUN2000 43KTL IN C1 43 kW 500 V Network Application The SUN2000 applies to grid tied PV power systems for commercial rooftops and large power stations Typically a grid tied PV power system consists ...

Page 11: ... Supported Power Grids The SUN2000 only supports the IT power grid mode as shown in Figure 2 3 Figure 2 3 Power grid mode supported by the SUN2000 The SUN2000 is mainly used for medium voltage power grids It delivers three phase three wire output which is then fed to a medium voltage power grid through a step up transformer 2 2 Appearance SUN2000 Dimensions Figure 2 4 shows the SUN2000 dimensions ...

Page 12: ...ght Huawei Technologies Co Ltd 6 Figure 2 4 SUN2000 dimensions including the mounting plate Front View Figure 2 5 shows the SUN2000 front view Figure 2 5 SUN2000 front view 1 Maintenance compartment door 2 LED indicator 3 Host panel Table 2 2 describes the LED indicators ...

Page 13: ...ct to the power grid Communications indicator Blinking green at short intervals on for 0 5s and then off for 0 5s The SUN2000 receives data over RS485 PLC communication Green off The SUN2000 has not received data over RS485 PLC communication for 10 seconds Alarm Maintenanc e indicator Alarm status Blinking red at long intervals on for 1s and then off for 4s A warning alarm is generated Blinking re...

Page 14: ...using a USB flash drive and connecting to the SUN2000 app over a Bluetooth module or USB data cable If alarming and local maintenance happen concurrently the alarm maintenance indicator shows the local maintenance state first After the USB flash drive Bluetooth module or USB data cable is removed the indicator shows the alarm state SUN2000 Rear View Figure 2 6 shows the SUN2000 rear view Figure 2 ...

Page 15: ...minals controlled by DC SWITCH 2 Waterproof cable connector is abbreviated as waterproof connector in the following text Use the USB port only during maintenance such as power on setting upgrade and data export Ensure that the USB cover is tightened when the USB port is not in use 2 3 Label Description Symbols Table 2 3 describes the labels on the SUN2000 enclosure and their meanings Table 2 3 Lab...

Page 16: ...t takes 5 minutes for the SUN2000 to discharge to the safe voltage Refer to documentation Remind operators to refer to the documents shipped with the SUN2000 Grounding Indicates the position for connecting the protection ground cable Operation warning Do not remove the DC input connector when the SUN2000 is running SUN2000 serial number label Indicates the SUN2000 serial number Nameplate The SUN20...

Page 17: ...te figure is for reference only The actual nameplate prevails Table 2 4 describes the compliance symbols Table 2 4 Compliance symbols Symbol Name Meaning TÜVRheinland certification mark The SUN2000 complies with TÜVRheinland certification standards CE certification mark The SUN2000 complies with Conformité Europé enne CE certification standards Environmentally friendly use period EFUP label The SU...

Page 18: ...eight PV strings Then the inputs are grouped into four MPPT routes inside the SUN2000 to track the maximum power point of the PV strings The DC power is then converted into three phase AC power through an inverter circuit Surge protection is supported on both the DC and AC sides Figure 2 9 shows the SUN2000 conceptual diagram Figure 2 9 SUN2000 conceptual diagram Working Modes The SUN2000 can work...

Page 19: ...rs the shutdown 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 ...

Page 20: ...ace and be protected from dust and water vapor corrosion A maximum of five SUN2000s with the packing dimensions W x H x D of 1095 mm x 395 mm x 745 mm can be stacked A maximum of six SUN2000s with the packing dimensions W x H x D of 1045 mm x 400 mm x 680 mm can be stacked To avoid personal injury or device damage stack SUN2000s with caution to prevent them from falling over Periodic inspections a...

Page 21: ...nd or 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 dam...

Page 22: ... Φ14 mm and Φ16 mm Drill bit Φ14 mm used for drilling holes in the support Drill bit Φ16 mm used for drilling holes in the wall Adjustable wrench With a length of 200 mm With an open end of 24 mm Secures bolts Socket wrench N A Secures bolts and AC output terminals Torque wrench With an open end of 18 mm 33 mm 52 mm or 65 mm Secures bolts and locking caps Diagonal pliers N A Cut cable ties Wire st...

Page 23: ...mers expansion bolts into holes Utility knife N A Removes packages Cable cutter N A Cuts power cables Crimping tool Model UTXTC0005 or H4TC0003 Manufacturer Amphenol Crimps metal contacts when preparing DC input power cables NOTE UTXTC0005 Amphenol is used to crimp metal cold forming contacts H4TC0003 Amphenol is used to crimp metal stamping forming contacts RJ45 crimping tool N A Prepares RJ45 co...

Page 24: ...Removal tool H4TW0001 Manufacturer Amphenol Removes DC connectors from the SUN2000 Vacuum cleaner N A Cleans up dust after drilling holes Multimeter DC voltage measurement range 1500 V DC1100 V DC1000 V DC750 V DC Measures voltages Marker Diameter 10 mm Marks signs Measuring tape N A Measures distances Level N A Levels hole positions ...

Page 25: ...s N A Protect your hands during installation Safety goggles N A Protects the operator s eyes during hole drilling Anti dust respirator N A Protects an operator from dust inhalation during hole drilling Hydraulic pliers N A Crimp OT DT terminals Heat shrink tubing N A Wraps the cable crimping area of an OT DT terminal Heat gun N A Heat shrinks a tube ...

Page 26: ...assis and heat sinks because these parts are extremely hot during operation Do not store the SUN2000 in areas with flammable or explosive materials Installation Environment Requirements The SUN2000 must be installed in a well ventilated environment to ensure good heat dissipation When installed under direct sunlight performance de rate may be initiated due to additional temperature rise The SUN200...

Page 27: ...flammable building materials Ensure that the installation surface is solid enough to bear the weight load In residential areas do not install the SUN2000 on gypsum boards or walls made of similar materials which have weak sound insulation performance because the noises generated by the SUN2000 disturb residents Installation Angle Requirements Install the SUN2000 vertically or at a maximum back til...

Page 28: ...2000 at a front tilt excessive back tilt side tilt horizontally or upside down Figure 4 4 Incorrect installation angles Installation Space Requirements The SUN2000 dimensions W x H x D including the mounting bracket are 930 mm x 550 mm x 283 mm Reserve enough clearance around the SUN2000 to ensure sufficient space for installation and heat dissipation as shown in Figure 4 5 ...

Page 29: ...n future it is recommended that the bottom clearance be greater than or equal to 600 mm and less than or equal to 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 The stacked install...

Page 30: ...SUN2000 43KTL IN C1 User Manual 4 System Installation Issue 07 2018 05 06 Copyright Huawei Technologies Co Ltd 24 Figure 4 7 Triangle installation mode recommended ...

Page 31: ...al injury keep balance when moving the SUN2000 because the SUN2000 is heavy Do not place the SUN2000 with its wiring terminals at the bottom contacting the floor or any other object because the terminals are not designed to support the weight of the SUN2000 When placing the SUN2000 on the floor put foam or paper under the SUN2000 to protect its cover Procedure Step 1 Arrange two persons to hold th...

Page 32: ...ersons End 4 3 3 Installing the Mounting Bracket Prerequisites To install the SUN2000 you need to prepare expansion bolts M12x60 stainless steel expansion bolts are recommended Context Figure 4 10 shows the SUN2000 mounting bracket dimensions Figure 4 10 Mounting bracket dimensions The SUN2000 mounting bracket has 16 tapped holes in four groups Mark any hole in each group based on site requirement...

Page 33: ... a security torx wrench Step 2 Determine the positions for drilling holes using the mounting bracket Level the hole positions using a level and mark the hole positions using a marker Figure 4 12 Determining hole positions Step 3 Drill holes using a hammer drill and install expansion bolts Avoid drilling holes in the water pipes and power cables buried in the wall An expansion bolt contains four pa...

Page 34: ...ete wall after removing the bolt spring washer and flat washer Otherwise the mounting bracket will not be securely installed on the concrete wall 1 Put a hammer drill with a Ф16 mm drill bit on a marked hole position perpendicularly against the wall and drill holes to a depth of 52 60 mm 2 Slightly tighten an expansion bolt vertically insert an expansion bolt into a hole and knock the expansion bo...

Page 35: ...e mounting bracket go to Step 3 and then Step 5 Step 2 If the installation position is high and you cannot mount the SUN2000 onto the mounting bracket perform Step 3 to Step 6 Step 3 Ensure that two people lift the SUN2000 and turn it upright Lift the SUN2000 by grasping the handle at the bottom of the SUN2000 with one hand and the handle at the top with the other To prevent personal injury caused...

Page 36: ...hnologies Co Ltd 30 Figure 4 16 Lifting a SUN2000 Step 4 Run a rope that is strong enough to bear the SUN2000 through the lifting eyes and hoist the SUN2000 When hoisting the SUN2000 keep balance to protect the SUN2000 from colliding with the wall or other objects Figure 4 17 Hoisting a SUN2000 ...

Page 37: ... 31 Step 5 Install the SUN2000 on the mounting bracket and level the SUN2000 chassis with the mounting bracket Figure 4 18 Mounting the SUN2000 onto the mounting bracket Step 6 Tighten the two security torx screws using a security torx wrench to a torque of 5 N m Figure 4 19 Tightening security torx screws End ...

Page 38: ...erials Installation Environment Requirements The SUN2000 must be installed in a well ventilated environment to ensure good heat dissipation When installed under direct sunlight performance de rate may be initiated due to additional temperature rise The SUN2000 should be installed in a sheltered place or a place with an awning If the SUN2000 is installed in such a place ensure that the clearances a...

Page 39: ...tion Figure 4 21 Correct installation angles Do not install the SUN2000 at a front tilt excessive back tilt side tilt horizontally or upside down Figure 4 22 Incorrect installation angles Installation Space Requirements The SUN2000 dimensions W x H x D including the mounting bracket are 930 mm x 550 mm x 283 mm Reserve enough clearance around the SUN2000 to ensure sufficient space for installation...

Page 40: ...and maintaining the SUN2000 in future it is recommended that the bottom clearance be greater than or equal to 600 mm and less than or equal to 730 mm If you have any questions about the distance consult the local technical support engineers 4 4 2 Moving the Inverter For details see 4 3 2 Moving the Inverter 4 4 3 Installing the Mounting Bracket Context Figure 4 24 shows the SUN2000 mounting bracke...

Page 41: ... holes are preferred Procedure Step 1 Remove the security torx wrench from the mounting bracket and set it aside Figure 4 25 Removing a security torx wrench Step 2 Determine the positions for drilling holes using the mounting bracket Level the hole positions using a level and mark the hole positions using a marker Figure 4 26 Determining hole positions Step 3 Drill holes using a hammer drill You a...

Page 42: ...and M12x40 bolts into the holes through the mounting bracket secure them using the shipped stainless steel nuts and flat washers and tighten the bolts to a torque of 45 N m using an 18 mm socket wrench The SUN2000 is delivered with M12x40 bolt assemblies If the screw length does not meet the installation requirements prepare M12 bolt assemblies by yourself and use them together with the delivered ...

Page 43: ...SUN2000 43KTL IN C1 User Manual 4 System Installation Issue 07 2018 05 06 Copyright Huawei Technologies Co Ltd 37 4 4 4 Installing the SUN2000 For details see 4 3 4 Installing the SUN2000 ...

Page 44: ...erter may result in electric shocks To prevent poor cable connection due to overstress it is recommended that the cables be bent and reserved and then connected to the appropriate ports The cable colors shown in the electrical connection drawings provided in this chapter are for reference only Select cables in accordance with local cable specifications green and yellow wires are used for grounding...

Page 45: ...on it 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 Do not leave unused screws in the maintenance compartment Procedure Step 1 Remove the two screws from the maintenan...

Page 46: ...able OT terminal M6 Context The ground point on the enclosure is preferred to connect to the PE cable for the SUN2000 The ground point in the maintenance compartment is used for connecting to the ground cable included in the multi core AC power cable For details see 5 3 Connecting AC Output Power Cables There are two ground points on the enclosure and one of them is standby It is recommended that ...

Page 47: ...l and crimp them using hydraulic pliers as shown in Figure 5 4 Figure 5 4 Crimping a cable The cavity formed after the conductor crimp strip is crimped must wrap the core wires completely The core wires must contact the terminal closely Step 3 Remove the ground screws from the ground points Step 4 Secure the ground cable using the ground screw and tighten the screw to a torque of 5 N m using a sec...

Page 48: ...gured 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 regulations Do not connect loads between the SUN2000 and the AC switch Context Recommended To connect a ground cable to the ground point on the chassis shell use a three core...

Page 49: ...ameter supported by AC OUTPUT 1 connector mm Range 18 44 You need to prepare M8 OT terminals by yourself If you connect a ground cable to the ground point in the maintenance compartment prepare an M6 OT terminal by yourself Requirements for OT terminals If a copper cable is used use a copper wiring terminal If a copper clad aluminum cable is used use a copper wiring terminal If an aluminum alloy c...

Page 50: ... 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 6 Requirements for OT terminals ...

Page 51: ... To highlight the involved area the figure does not show the open door Step 2 Remove the locking cap from the AC OUTPUT 1 connector and then remove the plug Step 3 Choose whether to use rubber fittings based on the cable outer diameter and select one or more rubber fittings if required Route the cable through the locking cap and then the rubber fitting ...

Page 52: ...al directly through the rubber fitting Do not adjust the cable when the locking cap is tightened Otherwise the rubber fitting will shift which affects the Ingress Protection Rating of the device Figure 5 8 Selecting the rubber fitting Step 4 Remove an appropriate length of the jacket and insulation layer from the AC output power cable using a wire stripper Ensure that the jacket is in the maintena...

Page 53: ...heat shrink tubing or PVC insulation tape If heat shrink tubing is used put it through the power cable and then crimp the OT terminal Step 7 Route the AC output power cable through the AC OUTPUT 1 connector at the bottom of the chassis Step 8 Connect the AC output power cable to the AC terminal block and then tighten the nut using a 13 mm socket wrench with an extension rod to a torque of 8 N m If...

Page 54: ... the SUN2000 to malfunction or cause damage to its terminal block from issues such as overheating If the SUN2000 is insecurely installed and the AC output power cable bears the pulling force ensure that the last cable bearing the force is the PE cable Figure 5 11 Connecting an AC output power cable three core wires Figure 5 12 Connecting an AC output power cable four core wires ...

Page 55: ...rwise the high voltage may result in electric shocks When the SUN2000 is grid tied it is not allowed to maintain DC input power cables such as connect or disconnect a string or a module in a string Otherwise electric shocks may occur Ensure that the following conditions are met Otherwise the SUN2000 will be damaged or even a fire disaster will be caused The open circuit voltage of each PV string i...

Page 56: ...ower 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 13 shows the DC terminals at the bottom of the SUN2000 Table 5 2 describes the requirements for DC terminal selection The SUN2000 provides two DC switches namely DC SWITCH 1 and DC SW...

Page 57: ...pecifications Cable Type Conductor Cross Sectional Area mm2 Cable Outer Diameter mm Range Recommended Value Common PV cables in the industry model PV1 F 4 0 6 0 or 12 10 AWG 4 0 or 12 AWG 4 5 7 8 Rigid cables such as armored cables are not recommended because poor contact may be caused by the bending of the cables Positive and negative connectors DC input connectors are categorized into positive a...

Page 58: ...ure Step 1 Prepare positive and negative connectors The metal contacts supplied with the DC connectors are either cold forming contacts or stamping forming contacts Choose the crimping tools that fit the metal contact types Do not mix up the tools Crimp the metal cold forming contacts using crimping tool UTXTC0005 Amphenol recommended or H4TC0001 Amphenol Crimp the metal stamping forming contacts ...

Page 59: ...sing metal cold forming contacts 1 Positive metal contact cold forming 2 Negative metal contact cold forming 3 Positive connector 4 Negative connector Figure 5 18 Preparing positive and negative connectors using metal stamping forming contacts 1 Positive metal contact stamping forming 2 Negative metal contact stamping forming 3 Positive connector 4 Negative connector ...

Page 60: ...voltage of each PV string does not exceed 1100 V DC using a multimeter and check that the polarities of the DC input power cables are correct Figure 5 19 Measuring the DC input voltage Before performing Step 4 ensure that the two DC switches are OFF Step 4 Insert the positive and negative connectors into the corresponding positive and negative DC input terminals of the inverter until they snap int...

Page 61: ...ge is beyond the warranty scope Wait until the solar irradiance declines at night and the PV string current reduces to below 0 5 A Then turn off the two DC switches remove the positive and negative connectors and correct the polarity of the DC input power cable End Follow up Procedure Before removing the positive and negative connectors ensure that the two DC switches are OFF To remove the positiv...

Page 62: ...artLogger to implement communication You can use the SUN2000 APP SmartLogger embedded WebUI or the network management software such as the NetEco on the PC to query information about the SUN2000 such as energy yield alarms and running status Figure 5 22 shows the communication mode for a single SUN2000 Figure 5 22 Communication mode for a single SUN2000 Figure 5 23 shows the communication mode for...

Page 63: ...n be less than 30 MBUS PLC Communication The MBUS PLC communication board loads communication signals onto power cables for transmission The built in MBUS PLC module in the SUN2000 does not need to be connected with cables Selecting a Communication Mode The RS485 and MBUS PLC communication modes are mutually exclusive If the MBUS PLC communication mode is selected do not connect the RS485 communic...

Page 64: ... RJ45 network port connection You are recommended to use a shielded RJ45 connector and a CAT 5E outdoor shielded network cable with an outer diameter less than 9 mm and internal resistance not greater than 1 5 ohms 10 m Select either connection mode during installation Connecting to a terminal block is recommended When laying out communications cables separate them from power cables and keep them ...

Page 65: ...of the jacket and core wire insulation layer from the communications cable using a wire stripper Figure 5 25 Stripping an RS485 communications cable Step 2 Remove the locking caps from the COM1 and COM2 waterproof cable connectors at the SUN2000 bottom and remove the plugs from the locking caps Step 3 Route the communications cable through the locking caps and then the COM1 RS485 IN and COM2 RS485...

Page 66: ... terminal base on the terminal block and connect the shield layers to the ground point When connecting the shielded cables choose whether to crimp the OT terminal based on site requirements Figure 5 27 Connecting communications cables Step 7 Bind communications cables after connecting them Figure 5 28 Binding communications cables ...

Page 67: ...Table 5 5 lists the RJ45 connector pin definitions Table 5 5 RJ45 connector pin definitions Pin Color Pin Definition 1 White and orange RS485A RS485 differential signal 2 Orange RS485B RS485 differential signal 3 White and green N A 4 Blue RS485A RS485 differential signal 5 White and blue RS485B RS485 differential signal 6 Green N A 7 White and brown N A 8 Brown N A Connecting a Cable to the RJ45 ...

Page 68: ...Crimp the RJ45 connector using a crimping tool Step 3 Remove the locking cap from the COM1 waterproof cable connector at the SUN2000 bottom and remove the plug from the locking cap Step 4 Route the cables through the locking caps and then the COM1 port at the SUN2000 bottom Step 5 Insert the RJ45 connector into the RJ45 network port in the SUN2000 maintenance compartment Figure 5 31 Connecting com...

Page 69: ...ding communications cables Step 7 Use a torque wrench with an open end of 33 mm to tighten the locking cap to a torque of 7 5 N m End Follow up Procedure Check that the cables are connected correctly and securely Then seal the connectors 5 6 Closing the Maintenance Compartment Door Procedure Step 1 Install the AC terminal cover ...

Page 70: ... Huawei Technologies Co Ltd 64 Figure 5 33 Installing a cover Step 2 Adjust the support bar Figure 5 34 Adjusting a support bar Step 3 Close the maintenance compartment door Tighten the two screws on the maintenance compartment door using a security torx wrench to a torque of 5 N m ...

Page 71: ... on the maintenance compartment door If a screw on the maintenance compartment door is missing use the unused ground screw on the chassis shell as a standby screw If the floating nut used for securing the maintenance compartment door is missing use the standby floating nut shown in Figure 5 36 Figure 5 36 Removing a standby floating nut End ...

Page 72: ...y without open circuits or short circuits 6 The communications cables are connected correctly and securely 7 All the used connectors at the chassis bottom are sealed 8 The AC terminal cover is reinstalled 9 The maintenance compartment door is closed and the door screws are tightened 10 Idle DC input terminals are sealed 11 The idle USB port is plugged with a waterproof plug 12 Idle AC OUTPUT and C...

Page 73: ...ure that the temperature rise does not exceed 40 C Step 4 Connect the SUN2000 to the mobile phone that runs SUN2000 app app for short through a Bluetooth module or USB data cable Mobile phone operating system Android 4 0 or later and iOS 7 0 or later When the iOS is used the app supports only Bluetooth connection When you use a Bluetooth module to set up the connection ensure that the mobile phone...

Page 74: ...06 Copyright Huawei Technologies Co Ltd 68 Figure 6 2 Data cable connection mode A Inverter B USB data cable C Mobile phone Use the USB data cable delivered with the mobile phone The port type of the USB data cable connected to the SUN2000 is USB 2 0 Figure 6 3 Login screen ...

Page 75: ...SUN2000 43KTL IN C1 User Manual 6 System Commissioning Issue 07 2018 05 06 Copyright Huawei Technologies Co Ltd 69 Figure 6 4 Selecting a connection mode Figure 6 5 Bluetooth connection ...

Page 76: ...Co Ltd 70 Figure 6 6 Data cable connection After you select Use by default for this USB accessory the message will not appear if you connect the app to the inverter again without removing the USB data cable Step 5 Switch the user type common user advanced user and special user by tapping the user name bar ...

Page 77: ...ed In these cases the user is liable for any loss caused to the PV plant During the login if an incorrect password is entered for five consecutive times the interval between two consecutive invalid password entries is less than 2 minutes the account will be locked for 10 minutes The password consists of six digits Step 6 Enter the password and tap Log In Step 7 After login the Quick Settings scree...

Page 78: ... rate RS485 protocol 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 inverters communicate with the SmartLogger over RS485 the addresses for all the inverters on each RS485 route must be within the address range set on the SmartLogger and cannot be du...

Page 79: ... remaining electricity and heat may still cause electric shocks and body burns Therefore put on protective gloves 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 SmartLogger1000 User Manual SmartLogger2000 User Manual or iManager NetEco 1000S User Manual Step 2...

Page 80: ...of SanDisk Netac and Kingston are recommended Other brands may be incompatible 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 shown in Figure 7 1 Figure 7 1 Boot script fi...

Page 81: ...ified 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 no...

Page 82: ...B 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 10 m...

Page 83: ...atch 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 on for 0 125s and then o...

Page 84: ...le For details see the SUN2000 APP User Manual Step 4 Import the boot script file to a PC 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 flash drive and executes all commands...

Page 85: ...tart After the restart the green indicator is blinking at long intervals on for 1s and then off for 1s for 1 minute until it becomes steady on which indicates that the upgrade is successful The SUN2000 can also be upgraded through the Inverter Update in the SUN2000 APP For details see the SUN2000 APP User Manual End 7 2 Operations with a SmartLogger For operations with a SmartLogger see the SmartL...

Page 86: ... 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 that the hea...

Page 87: ...oning 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 decreases or t...

Page 88: ...connected in series to PV strings 7 and 8 and therefore the PV string open circuit voltage exceeds the maximum operating voltage of the SUN2000 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 operating voltage of the SUN2000 After the PV array configuration is corrected the inverter alarm disap...

Page 89: ...n and not shielded from sunlight check whether any PV module is faulty 120 12 7 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 to the SUN2...

Page 90: ...rnal control circuit of the SUN2000 Cause ID 11 The grid voltage changes sharply and the SUN2000 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 SUN2000 Cause ID 3 10 11 1 The inverter detects its external working conditions in real time After the fault is re...

Page 91: ...e power grid is short circuited As a result the inverter transient output current exceeds the upper threshold and therefore the inverter protection is triggered Cause ID 16 The DC current in the power grid exceeds the upper threshold Cause ID 20 The inverter output is short circuited As a result the output current surges to a value above the upper limit and the inverter protection is triggered Cau...

Page 92: ...rs frequently check whether the grid voltage 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 grid overvoltage and undervoltage protection thresholds with the consent of the local power operator 3 If the fault persists for a long time check the AC switch and AC output power cable Cause ID 16 19 26 1 Check whethe...

Page 93: ...rm occurs accidentally the power grid may be abnormal temporarily The SUN2000 automatically recovers after detecting that the power grid becomes normal 2 If the alarm occurs frequently check whether the grid frequency is within the acceptable range If no contact the local power operator 313 Low Insulatio n Resistanc e Major Cause ID 1 A short circuit occurs between the PV string and the PGND cable...

Page 94: ...erter The SUN2000 output side does not connect to an isolation transformer when the PV string output is grounded 1 Check that the neutral wire or PGND cable properly connects to the inverter 2 If the PV string output is grounded check that the SUN2000 output side connects to an isolation transformer 400 System Fault Major Cause ID 1 3 21 23 27 An unrecoverable fault occurs on a circuit inside the ...

Page 95: ... ID 1 The upgrade does not end normally Perform the upgrade again 614 40 Flash Fault Minor Cause ID 1 The flash memory is insufficient The flash memory has bad sectors 1 Replace the monitoring board 2 If the monitoring board is built into the monitoring device replace the monitoring device If you cannot rectify faults with the measures listed in the preceding table contact Huawei technical support...

Page 96: ...N2000 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 materials a...

Page 97: ... 6 Input Item SUN2000 43KTL IN C1 Maximum input power 53500 W Maximum input voltage 1100 V Maximum input current per MPPT 22 A Maximum short circuit current per MPPT 30 A Maximum inverter backfeed current to the PV array 0 A Minimum operating startup voltage 200 V 250 V Maximum operating voltage 1000 V MPPT voltage range 200 1000 V Full power MPPT voltage range 625 850 V Rated input voltage 750 V ...

Page 98: ...A Power factor 0 8 leading 0 8 lagging Maximum total harmonic distortion rated power 3 Protection Item SUN2000 43KTL IN C1 Input DC switch Supported Anti islanding protection Supported Output overcurrent protection Supported Input reverse connection protection Supported PV string fault detection Supported DC surge protection Type II AC surge protection Type II DC insulation resistance detection Su...

Page 99: ...m x 550 mm x 283 mm including the mounting plate Weight About 60 kg excluding the mounting plate About 62 kg including the mounting plate Operating temperature 25 C to 60 C Cooling mode Natural convection Highest altitude 4000 m Humidity 0 100 RH Input terminal Amphenol Helios H4 Output terminal Waterproof cable connector OT terminal Ingress Protection Rating IP65 Topology Transformerless ...

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