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SUN2000-(36KTL,42KTL)
User Manual

5 Connecting Cables

Issue Draft A (2016-05-30)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

40



Never open the host panel of the SUN2000.



Before opening the maintenance compartment door, disconnect the AC and DC power
supplies. For processes of disconnecting the power supplies, see

6.3 Powering Off the

SUN2000

. After powering off the SUN2000, wait at least 5 minutes before performing

operations 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 maintenance compartment door using a security torx wrench
and set them aside.

Figure 5-1

Removing screws

Step 2

Open the maintenance compartment door and install a support bar.

The support bar is bound to the chassis base.

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Summary of Contents for SUN2000-42KTL

Page 1: ...SUN2000 36KTL 42KTL User Manual Issue Draft A Date 2016 05 30 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ... the customer 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 subj...

Page 3: ...ventions 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 serious injury or death Indicates a potentially hazardous situation which if not avoided could result in serious injury or death Indicates a potentially hazardous situation which if not avoided may result in minor or moder...

Page 4: ...ei Proprietary and Confidential Copyright Huawei Technologies Co Ltd iii Change History Changes between document issues are cumulative The latest document issue contains all updates made in previous issues Issue Draft A 2016 05 30 This issue is used for first office application FOA ...

Page 5: ...3 2 Moving the Inverter 26 4 3 3 Installing the Mounting Bracket 27 4 3 4 Installing the SUN2000 30 4 4 Support mounting the SUN2000 33 4 4 1 Determining the Installation Position 33 4 4 2 Moving the Inverter 36 4 4 3 Installing the Mounting Bracket 36 4 4 4 Installing the SUN2000 38 5 Connecting Cables 39 5 1 Precautions 39 5 2 Opening the Maintenance Compartment Door 39 5 3 Connecting the Ground...

Page 6: ...s 75 7 1 Operations with a USB Flash Drive 75 7 1 1 Exporting Configurations 75 7 1 2 Importing Configurations 77 7 1 3 Exporting Data 78 7 1 4 Upgrading 79 7 2 Operations with a SmartLogger 80 7 3 Operations with the NMS 80 7 4 Operations with the SUN2000 APP 80 8 Maintenance 81 8 1 Routine Maintenance 81 8 2 Troubleshooting 82 9 Handling the SUN2000 90 9 1 Removing the SUN2000 90 9 2 Packing the...

Page 7: ...hese signs contain important information about safe operation Do not tamper with the nameplate on the inverter enclosure because it contains important product information Do not remove the warranty label from the inverter enclosure Otherwise product warranty will be forfeited Installation Ensure that the inverter is not connected to a power supply and is not powered on before starting installation...

Page 8: ...electric shocks and serious injuries during inverter operating Strictly comply with the safety precautions in this document and associated documents when operating the inverter Do not touch an operating inverter because the heat sinks may have a temperature of greater than 60º C and may cause burns when the inverter is operating Follow local laws and regulations when operating the equipment Mainte...

Page 9: ... 1 Safety Precautions Issue Draft A 2016 05 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 Observe ESD precautions during the maintenance For personal safety wear insulation gloves and protective shoes ...

Page 10: ... shows a model number of the SUN2000 using SUN2000 36KTL as an example Figure 2 1 Model number description Table 2 1 shows the rated output power Table 2 1 SUN2000 models and corresponding rated output power and voltage Model Rated Output Power SUN2000 36KTL 36 kW SUN2000 42KTL 42 kW Network Application The SUN2000 applies to grid tied PV power systems for commercial rooftops and large power stati...

Page 11: ...ure 2 2 Network application A PV string B SUN2000 C ACDU D Isolation transformer E Power grid Supported Power Grids The SUN2000 36KTL supports the following power grid modes TN S TN C TN C S TT and IT The SUN2000 42KTL supports only IT grid mode Figure 2 3 Power grid modes 2 2 Appearance SUN2000 Dimensions Figure 2 4 shows the SUN2000 dimensions ...

Page 12: ...Confidential Copyright Huawei Technologies Co Ltd 6 Figure 2 4 SUN2000 dimensions including the mounting bracket 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: ...es not connect to the power grid Communications indicator Blinking green at short intervals on for 0 5s and then off for 0 5s The inverter receives data over RS485 PLC or FE communication Green off The inverter has not received data over RS485 PLC or FE 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 alar...

Page 14: ... import and export 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 ...

Page 15: ...ollowing text 2 3 Label Description Symbols Table 2 3 describes the labels on the SUN2000 enclosure and their meanings Table 2 3 Label description Symbol Name Meaning 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 perf...

Page 16: ...ation warning Do not remove the DC input connector when the SUN2000 is running Warranty label Never open the host panel of the SUN2000 SUN2000 serial number label Indicates the SUN2000 serial number Weight label The SUN2000 is heavy and needs to be carried by multiple persons Nameplate The SUN2000 is labeled with a nameplate on the side that contains the model information technical specifications ...

Page 17: ...t model 2 Important technical specifications 3 Compliance symbols 4 Company name and country of manufacture Table 2 4 describes the compliance symbols Table 2 4 Compliance symbols Symbol Name Meaning Environmentally friendly use period EFUP label The SUN2000 does not pollute the environment during the specified period EU waste electrical and electronic equipment WEEE label Do not dispose of the SU...

Page 18: ...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 conceptual diagram for the SUN2000 36KTL Figure 2 10 shows the conceptual diagram for the SUN2000 42KTL Figure 2 9 Conceptual diagram for the SU...

Page 19: ...t does not meet the requirements for starting the SUN2000 In standby mode The SUN2000 continuously performs self check and enters the operating mode once the operating requirements are met If the SUN2000 enters 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 ...

Page 20: ...wer the inverter does not trace the maximum power point of the PV array Instead the inverter limits the PV array output power close to the maximum inverter output power to reduce the peak PV array output power 2 The inverter accepts the power scheduling from the power grid and limits the output power to the range specified by the power grid Power grid scheduling includes active power derating and ...

Page 21: ...r Keep the storage temperature at 40 C to 70 C and the humidity at 5 100 RH The inverter should be stored in a clean and dry place and be protected from dust and water vapor corrosion A maximum of five inverters can be stacked Periodic inspections are required during the storage If any rodent bites are found replace the packing materials immediately If the inverter has been long term stored inspec...

Page 22: ...l If any damage is found or the inverter model is not what you require do not unpack the package but contact the dealer 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 Deliverables After unpacking the inverter check that the deliverables are intact and co...

Page 23: ...mmer drill Drill bit 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 16 mm 18 mm 33 mm or 52 mm Secures bolts and locking caps Diagonal pliers N A Cu...

Page 24: ...at head screwdriver Blade 0 6 mm x 3 5 mm Connects cables to a terminal base Rubber mallet N A Hammers expansion bolts into holes Utility knife N A Removes packages Cable cutter N A Cuts power cables Crimping tool H4TC0001 Manufacturer AMPHENOL Crimps metal terminals when preparing DC input power cables RJ45 crimping tool N A Prepares RJ45 connectors for communications cables ...

Page 25: ... Huawei Technologies Co Ltd 19 Tool Model Function Removal tool H4TW0001 Manufacturer AMPHENOL Removes DC connectors from the SUN2000 Vacuum cleaner N A Cleans up dust after drilling holes Multimeter N A Measures voltages Marker Diameter 10 mm Marks signs Measuring tape N A Measures distances Level N A Levels hole positions ...

Page 26: ...20 Tool Model Function Protective gloves N A Protect your hands during installation Safety goggles N A Protect your eyes during hole drilling Anti dust respirator N A Protects you from dust during hole drilling Hydraulic pliers N A Crimp OT terminals Heat shrink tubing N A Wraps the cable crimping area of an OT terminal Heat gun N A Heat shrinks a tube ...

Page 27: ...are easy to come into contact with its chassis 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 ambient temperature is recommended to be below 50 C to ensure optimal SUN2000 operating status The SUN2000 must be installed in a well ventilated environment to ensure g...

Page 28: ... SUN2000 on flammable building materials The SUN2000 weighs 55 kg Ensure that installation surface is solid enough to bear the SUN2000 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 vertic...

Page 29: ...o not install the SUN2000 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 30: ...aining 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 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...

Page 31: ...UN2000 36KTL 42KTL User Manual 4 System Installation Issue Draft A 2016 05 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 25 Figure 4 7 Triangle installation mode recommended ...

Page 32: ...ce damage and personal 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 tw...

Page 33: ...hen installing the SUN2000 36KTL you can use the expansion bolts delivered with the SUN2000 to install the mounting bracket When installing the SUN2000 42KTL you need to prepare the expansion bolts M12x60 stainless 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 hole...

Page 34: ...et it aside Figure 4 11 Removing a security torx wrench Step 2 Determine the positions for drilling holes using the mounting bracket available in the packing case as shown in Figure 4 12 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 An expansion bolt contai...

Page 35: ... 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 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 Vertically insert an expansion bolt into a hole and knock the expansio...

Page 36: ... the SUN2000 onto the 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 pe...

Page 37: ...nd Confidential Copyright Huawei Technologies Co Ltd 31 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 ...

Page 38: ... 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 32 Figure 4 17 Hoisting a SUN2000 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 ...

Page 39: ...install the SUN2000 in a place where personnel are easy to come into contact with its chassis 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 ambient temperature is recommended to be below 50 C to ensure optimal inverter operating status The inverter must be insta...

Page 40: ...s The carrier where the inverter is installed must be fire proof Do not install the inverter on flammable building materials The inverter weighs 55 kg Ensure that installation surface is solid enough to bear the inverter Installation Angle Requirements Install the SUN2000 vertically or at a maximum back tilt of 15 degrees to facilitate heat dissipation Figure 4 21 Correct installation angles ...

Page 41: ... 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 and heat dissipation as shown in Figure 4 23 Figure 4 23 Installation space ...

Page 42: ... 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 bracket dimensions Figure 4 24 Mounting bracket dimensions The SUN2000 mounting bracket has 16 tapped holes in four groups Mark any hole in each group based o...

Page 43: ...g 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 Figure 4 27 Drilling holes Step 4 Align the mounting bracket with the hole positions insert bolt assemblies flat washers spring washers and M12x40 bolts into the holes through the mounting bracket secure them using the shipped stain...

Page 44: ...ogies Co Ltd 38 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 M12 nuts Figure 4 28 Securing a mounting bracket End 4 4 4 Installing the SUN2000 For details see 4 3 4 Installing the SUN2000 ...

Page 45: ...ting cables ensure that DC SWITCH on the inverter is OFF Otherwise the high voltage of the inverter may result in electric shocks 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 yellow green wires are only used for grounding 5 2 Opening the Maintenance Compartment Door Prerequis...

Page 46: ...rforming operations 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 screw...

Page 47: ... more OT terminal M6 Context Both the shell and maintenance compartment of the inverter provide a ground point Select either for connecting the ground cable There are two ground points on the chassis shell and one of them is standby 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 al...

Page 48: ...rea of the OT terminal 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...

Page 49: ...breaker must be installed on the AC side of each SUN2000 to ensure that the SUN2000 can be safely disconnected from the power grid See 10 Technical Specifications to select circuit breakers of the appropriate specifications Do not connect loads between the SUN2000 and circuit breaker Context If you connect a ground cable to the ground point on the chassis shell you are recommended to use a three c...

Page 50: ...ls by yourself If you connect a ground cable to the ground point in the maintenance compartment prepare an M6 OT terminal by yourself The following describes how to connect AC power cables to the SUN2000 42KTL The SUN2000 36KTL supports 3W PE and 3W N PE wiring modes Choose whether to connect the N wire based on the application scenario Procedure Step 1 Remove the AC terminal cover as shown in Fig...

Page 51: ...imping area with 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 5 Remove the locking cap from the AC OUTPUT 2 waterproof cable connector at the inverter bottom and remove the plug from the locking cap Step 6 Route the AC output power cable through the locking cap and then the AC OUTPUT 2 connector at the in...

Page 52: ...utput power cables are connected securely Otherwise the inverter may fail to operate or experience any fault that will cause the damage of the terminal block For example the inverter may generate heat during operating due to unreliable connection Figure 5 9 Connecting an AC output power cable three core wires Figure 5 10 Connecting an AC output power cable four core wires ...

Page 53: ...ites 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 Otherwise 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 ...

Page 54: ...The PV strings must meet the following requirements if they need to be grounded A three phase isolation transformer is installed on the output side One isolation transformer must be installed only for one SUN2000 Do not connect two or more SUN2000s to the same isolation transformer Otherwise the SUN2000s may fail to work due to the loop current generated between them Set Isolation to Input grounde...

Page 55: ...le 5 3 Recommended DC input power cable specifications 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 c...

Page 56: ...e length from the positive and negative power cables using a wire stripper as shown in Figure 5 14 Figure 5 14 Stripped length Step 2 Insert the exposed area of the positive and negative power cables into the metal terminals of the positive and negative connectors respectively and crimp them using a crimping tool as shown in Figure 5 15 Ensure that the cables are crimped tightly such that they can...

Page 57: ...ative power cables into the corresponding positive and negative connectors until they snap into place Figure 5 16 Inserting positive and negative connectors Check that the cables are in position by slightly pulling them back Step 4 Tighten the locking nuts on the positive and negative connectors Secure the nuts using a removal wrench as shown in Figure 5 17 Figure 5 17 Tightening a locking nut ...

Page 58: ...that the polarities of the DC input power cables are correct Figure 5 18 Measuring the DC input voltage Before performing Step 7 ensure that the two DC switches are OFF Measure the voltage of the DC input strings using a multimeter Step 7 Insert the positive and negative connectors into the corresponding positive and negative DC input terminals of the SUN2000 until they snap into place as shown in...

Page 59: ... damage caused by reverse connection of the DC input power cable is beyond the warranty scope Wait until the PV string voltage reduces to the safe range below 60 V DC Then turn off the two DC switches remove the positive and negative connectors and rectify the connection End Follow up Procedure Before removing the positive and negative connectors ensure that the two DC switches are OFF To remove t...

Page 60: ... PC through the SmartLogger to implement RS485 communication You can use the SUN2000 app 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 21 shows the communication mode for a single SUN2000 Figure 5 21 Communication mode for a single SUN2000 Figure 5 22 shows the communicat...

Page 61: ...tion The PLC communication board loads communication signals onto power cables for transmission For details about how to install the PLC see the PLC CCO01A User Manual or SmartLogger2000 User Manual The built in PLC module in the SUN2000 does not need to be connected with cables FE Optional FE communication is mainly used in distributed rooftop scenarios with a small number of inverters The invert...

Page 62: ...commended to use a DJYP2VP2 22 2x2x1 network cable or a communications cable with a conductor cross sectional area of 1 mm2 and cable outer diameter of 14 18 mm 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 connec...

Page 63: ...the RS485 terminal block No Port Definition Description 1 RS485A IN RS485A RS485 differential signal 2 RS485A OUT RS485A RS485 differential signal 3 RS485B IN RS485B RS485 differential signal 4 RS485B OUT RS485B RS485 differential signal Connecting Cables to the Terminal Block Step 1 Remove an appropriate length of the jacket and core wire insulation layer from the communications cable using a wir...

Page 64: ...s cable through the locking caps and then the COM1 RS485 IN and COM2 RS485 OUT connectors at the SUN2000 bottom Step 4 Remove the terminal base from the terminal block Step 5 Connect communications cables to the terminal base Figure 5 25 Connecting cables to a terminal base 1 RS485A IN 2 RS485A OUT 3 RS485B IN 4 RS485B OUT Step 6 Install the terminal base on the terminal block and connect the shie...

Page 65: ...onfidential Copyright Huawei Technologies Co Ltd 59 Figure 5 26 Connecting communications cables Step 7 Bind communications cables after connecting them Figure 5 27 Binding communications cables Step 8 Use a torque wrench with an open end of 33 mm to tighten the locking caps to a torque of 7 5 N m End ...

Page 66: ...r 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 Network Port Step 1 Insert the wi...

Page 67: ...brown 8 Brown Step 2 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 Figur...

Page 68: ...at the cables are connected correctly and securely and then seal the cable holes with firestop putty 5 6 3 Optional Connecting FE Communications Cables Description FE communication is mainly used in distributed rooftop scenarios with a small number of inverters The inverter can directly connect to the PC over the Ethernet to implement monitoring networking FE communication is optional for the SUN2...

Page 69: ...568B The network cables used in the same PV grid tied power generation system should be prepared according to the same standard Table 5 6 lists the 568A wire sequence standard Table 5 7 lists the 568B wire sequence standard Table 5 6 568A standard Pin Color 1 White and green 2 Green 3 White and orange 4 Blue 5 White and blue 6 Orange 7 White and brown 8 Brown Table 5 7 568B standard Pin Color 1 Wh...

Page 70: ...tor in sequence as shown in Figure 5 33 Figure 5 33 Connecting wires to an RJ45 connector Step 2 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 conne...

Page 71: ...onfidential Copyright Huawei Technologies Co Ltd 65 Figure 5 34 Connecting communications cables Step 6 Bind communications cables after connecting them Figure 5 35 Binding communications cables Step 7 Use a torque wrench with an open end of 33 mm to tighten the locking caps to a torque of 7 5 N m End ...

Page 72: ...p 1 Install the AC terminal cover Figure 5 36 Installing a cover Step 2 Adjust the support bar Figure 5 37 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 4 N m If the screw on the maintenance compartment door is missing use the idle ground screw on the chassis shell as the ...

Page 73: ...KTL 42KTL User Manual 5 Connecting Cables Issue Draft A 2016 05 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 67 Figure 5 38 Tightening screws on the maintenance compartment door End ...

Page 74: ...out open circuits or short circuits 6 The RS485 communications cable is connected correctly and securely 7 All used connectors at the chassis bottom are applied with firestop putty 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 ...

Page 75: ...nnectors using a point test thermometer To check that the DC terminals are in good contact check that the temperatures at the joints between DC terminals and connectors do not exceed 85 C after the inverter has been running for a period of time Step 4 Connect the inverter to the mobile phone that runs SUN2000 APP app for short through a Bluetooth module or USB data cable When you use a Bluetooth m...

Page 76: ...36KTL 42KTL User Manual 6 System Commissioning Issue Draft A 2016 05 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 70 Figure 6 3 Login screen Figure 6 4 Selecting a connection mode ...

Page 77: ...2016 05 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 71 Figure 6 5 Bluetooth connection Figure 6 6 Data cable connection After you select Use by default for this USB accessory the message will not appear if you reconnect the USB data cable ...

Page 78: ...orrect 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 the successful login the Quick Settings screen or Function Menu screen is displayed If you log in to the app after the device con...

Page 79: ...d time Set Baud rate Protocol and Address based on site requirements Baud rate can be set to 4800 9600 or 19200 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 SmartLogger1000 or SmartLogger2000 over RS485 the addresses for all the inverters on each RS485 route must be within the address range set on the Sm...

Page 80: ... 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 NetEco1000S V100R001C00 User Manual Step 2 Switch off the circuit ...

Page 81: ...k 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 computer Optional The boot script file can be opened as a txt file as shown in Figure 7 1 Figure 7 1 Boot script file ...

Page 82: ...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 minutes Table 7 1 LED indicator description LED Indicator ...

Page 83: ...onnect the USB flash drive to the 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 ...

Page 84: ...rify 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 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...

Page 85: ...s is a boot script file SUN2000 bin SUN2000_CPLD bin SUN2000_FE bin SUN2000_Master_Release bin SUN2000_Slave_Release bin update sh vercfg xml When the login password of the SUN2000 APP is the initial password 00000a there is no need to perform Step 3 Step 5 When the login password of the SUN2000 APP is not the initial password perform Step 3 Step 7 Step 3 On the SUN2000 APP tap Inverter Command Se...

Page 86: ... An operation with a USB flash drive has failed Steady green An operation with a USB flash drive is successful Step 8 Optional The system automatically restarts when the upgrade is completed All LED indicators turn off during the restart 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...

Page 87: ... compartment door in rainy or snowy days Table 8 1 Maintenance list Item Check Method Maintenance Interval System cleanlines s Check periodically that the heat sinks are free from obstacles or dust Maintain the DC switches at night Turn on the DC switches and then turn them off In this way oxide on the switches is removed Once six months to a year System running status Check that the inverter is n...

Page 88: ...ity 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 enters the shutdown mode and disconnects from the power grid to stop generating electricity after a fault occurs Minor Some components are ...

Page 89: ...ured Excessive PV modules are connected in series to PV strings 7 and 8 and therefore the PV string open circuit voltage exceeds the inverter MPP 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 input voltage After the PV array configuration is corrected the inverter alarm disap...

Page 90: ...sunlight 3 If the PV string is clean and not shielded from sunlight check whether any PV module is faulty 120 1 27 String 1 8 Reversed Major 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...

Page 91: ...eriously 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 det...

Page 92: ...drops dramatically or the 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 pro...

Page 93: ...2 If the alarm occurs frequently check whether the power grid voltage is within the acceptable range If no contact the local power operator If yes log in to the SUN2000 APP SmartLogger or the NetEco to modify the power 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 circuit breaker and AC outp...

Page 94: ... the local power operator Cause ID 5 1 If the alarm occurs accidentally the power grid may be abnormal temporarily The inverter automatically recovers after detecting that the power grid becomes normal 2 If the alarm occurs frequently check whether the power grid frequency is within the acceptable range If no contact the local power operator 313 Low Insulation Res Major A short circuit occurs betw...

Page 95: ...nverter 400 System Fault Major 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 output switch and DC input switch after 5 minutes If the fault persists contact Huawei technical support 410 Abn Auxiliary Power Major The sampling control board has an abnormal voltage which may be caused by the following The internal ...

Page 96: ...ollowing operations to remove the 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...

Page 97: ... power cos φ 1 40 800 W 47 800 W Maximum input voltage 1100 V Maximum input current per MPPT 22 A Maximum inverter backfeed current to the PV array 0 A Minimum startup voltage 250 V MPP voltage range 200 1000 V Full load MPP voltage range 480 850 V 580 850 Va 580 850 V Rated input voltage 620 V 720 Vb 720 V Number of inputs 8 Number of MPPTs 4 Note a If the rated output voltage of the SUN2000 36KT...

Page 98: ...ted power grid frequency 50 Hz 60 Hz Maximum output current 60 8 Ad 57 8 Ae 48 2 Af 56 6 A Power factor 0 8 leading 0 8 lagging Total harmonic distortion THD 3 Note c Choose whether to connect the neutral wire to the SUN2000 36KTL based on the application scenario When the SUN2000 36KTL is used in a low voltage scenario without the neutral wire you need to set Output mode to Three phase three wire...

Page 99: ...etection Supported Communication Item SUN2000 36KTL SUN2000 42KTL Display LED indicator Bluetooth module app USB data cable app RS485 Supported USB Supported PLC Supported FE Optionalg Not supported Note g If the SUN2000 36KTL adopts the FE communication mode it supports only the RS485 and FE communication modes and does not support the PLC communication mode Common Parameters Item SUN2000 36KTL S...

Page 100: ...ei Technologies Co Ltd 94 Item SUN2000 36KTL SUN2000 42KTL Output terminal Waterproof PG connector OT terminal Protection level IP65 Topology No transformer Noise typical value 50 dB Standards Compliance Item SUN2000 36KTL SUN2000 42KTL Criterion EN IEC 61000 1 EN IEC 61000 2 EN IEC 61000 3 EN IEC 61000 4 EN IEC 62109 1 EN IEC 62109 2 ...

Page 101: ...ltage power grid 220 V 380 V 3 UTE C 15 712 1 A France mainland low voltage power grid 230 V 400 V 4 UTE C 15 712 1 B France islands 230 V 50 Hz 230 V 400 V 5 UTE C 15 712 1 C France islands 230 V 60 Hz 230 V 400 V 6 BDEW MV Germany medium voltage power grid 230 V 400 V 7 G59 England England 230 V power grid I 16 A 230 V 400 V 8 G59 Scotland Scotland 240 V power grid I 16 A 240 V 415 V 9 CEI0 21 I...

Page 102: ... UTE C 15 712 1 MV480 France medium voltage power grid 277 V 480 V 23 TAI PEA MV480 Thailand medium voltage power grid PEA 277 V 480 V 24 TAI MEA MV480 Thailand medium voltage power grid MEA 277 V 480 V 25 EN50438 DK MV480 Denmark medium voltage power grid 277 V 480 V 26 EN50438 TR MV480 Turkey medium voltage power grid 277 V 480 V 27 EN50438 TR Turkey low voltage power grid 230 V 400 V 28 C11 C10...

Page 103: ...VDE AR N 4105 MV480 Germany medium voltage power grid 277 V 480 V 43 CEI0 16 MV480 Italy medium voltage power grid 277 V 480 V 44 Custom 50 Hz Reserved 230 V 400 V 45 Custom 60 Hz Reserved 230 V 400 V 46 Custom MV480 50 Hz Reserved 277 V 480 V 47 Custom MV480 60 Hz Reserved 277 V 480 V Table A 2 lists the power grid standard codes which the SUN2000 42KTL supports Table A 2 Power grid codes SUN2000...

Page 104: ...medium voltage power grid 277 V 480 V 10 Philippines MV480 Philippines medium voltage power grid 277 V 480 V 11 NRS 097 2 1 MV480 South Africa medium voltage power grid 277 V 480 V 12 IEC61727 60 Hz MV480 IEC medium voltage power grid 60 Hz 277 V 480 V 13 PO12 3 MV480 Spain medium voltage power grid 277 V 480 V 14 EN50438_IE MV480 Ireland medium voltage power grid 277 V 480 V 15 VDE AR N 4105 MV48...

Page 105: ...Proprietary and Confidential Copyright Huawei Technologies Co Ltd 99 B Acronyms and Abbreviations E ESN equipment serial number 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 ...

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