Huawei SUN2000-15KTL-50KTL-M3 Series User Manual Download Page 68

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Replacing SUN2000-(15KTL-50KTL) Series with
SUN2000-(15KTL-50KTL)-M3 Series
User Manual

6 Electrical Connections

Issue 01 (2021-04-05)



Ensure that the PE cable is securely connected. Otherwise, electric shocks may occur.



Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks
may occur.



The PE point at the AC output port is used only as a PE equipotential point, and cannot substitute for
the PE point on the enclosure.



It is recommended that silica gel or paint be used around the ground terminal after the PE cable is
connected.

Procedure

Step 1

Crimp an OT terminal.



Avoid scratching the core wire when stripping a cable.



The cavity formed after the conductor crimp strip of the OT terminal is crimped must wrap
the core wires completely. The core wires must contact the OT terminal closely.



Wrap the wire crimping area with heat shrink tubing or insulation tape. The heat shrink
tubing is used as an example.



When using a heat gun, protect the equipment from being scorched.

Figure 6-19

Crimping an OT terminal

(1) Cable

(2) Core

(3) Heat shrink tubing

Summary of Contents for SUN2000-15KTL-50KTL-M3 Series

Page 1: ...Replacing SUN2000 15KTL 50KTL Series with SUN2000 15KTL 50KTL M3 Series User Manual Issue 01 Date 2021 04 05 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: ...rovided in this document Intended Audience This document is applicable to Installers Users Symbol Conventions The symbols that may be found in this document are defined as follows Symbol Remarks 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...

Page 4: ...ologies Co Ltd iii Symbol Remarks NOTE is used to address information not related to personal injury equipment damage and environment deterioration Change History Changes between document issues are cumulative The latest document issue contains all updates made in previous issues Issue Issue 01 2021 04 05 This issue is the first official release ...

Page 5: ...view 7 2 1 Overview 7 2 2 Appearance 11 2 3 Label Description 12 2 4 Working Principles 14 2 4 1 Circuit Diagram 14 2 4 2 Working Modes 15 3 SUN2000 Storage 17 4 Removing the Original SUN2000 18 4 1 Removing the SUN2000 V100R001 18 4 2 Removing the SUN2000 V200R001 22 4 3 Removing the SUN2000 V200R002 27 5 Installation 32 5 1 Checking Before Installation 32 5 2 Tool Preparation 32 5 3 Selecting an...

Page 6: ...the SUN2000 66 6 3 2 3 Optional Connecting the Signal Transfer Cable 67 6 3 3 Installing the AC Output Power Cable 72 6 3 4 Installing DC Input Power Cables 76 6 3 5 Optional Installing the WLAN FE Smart Dongle 79 7 Commissioning 82 7 1 Checking Before Power On 82 7 2 System Power On 83 8 Human Machine Interaction 85 8 1 Setting Parameters for Replacing a SUN2000 85 8 2 SmartLogger Networking Scen...

Page 7: ...pyright Huawei Technologies Co Ltd vi D Built in PID Recovery 123 E Resetting Password 125 F Setting Dry Contact Scheduling Parameters 126 G AFCI 127 H Smart I V Curve Diagnosis 130 I FCC Supplier s Declaration of Conformity SDoC 131 J IC Supplier s Declaration of Conformity SDoC 132 K Acronyms and Abbreviations 133 ...

Page 8: ... may become faulty and the resulting equipment malfunction component damage personal injuries or property damage are not covered under the warranty Follow local laws and regulations when installing operating or maintaining the equipment The safety instructions in this document are only supplements to local laws and regulations Huawei will not be liable for any consequences of the following circums...

Page 9: ... scratches caused during equipment transportation or installation in a timely manner Equipment with scratches cannot be exposed to an outdoor environment for a long period of time Do not open the host panel of the equipment Personal Safety If there is a probability of personal injury or equipment damage during operations on the equipment immediately stop the operations report the case to the super...

Page 10: ...ment Do not damage the ground conductor Do not operate the equipment in the absence of a properly installed ground conductor Ensure that the equipment is connected permanently to the protective ground Before operating the equipment check its electrical connection to ensure that it is securely grounded General Requirements Before connecting cables ensure that the equipment is intact Otherwise elect...

Page 11: ... Requirements Ensure that the equipment is installed in a well ventilated environment To prevent fire due to high temperature ensure that the ventilation vents or heat dissipation system are not blocked when the equipment is running Do not expose the equipment to flammable or explosive gas or smoke Do not perform any operation on the equipment in such environments 1 5 Mechanical Safety Using Ladde...

Page 12: ...into a wall or floor observe the following safety precautions Wear goggles and protective gloves when drilling holes When drilling holes protect the equipment from shavings After drilling clean up any shavings that have accumulated inside or outside the equipment Moving Heavy Objects Be cautious to avoid injury when moving heavy objects When moving the equipment by hand wear protective gloves to p...

Page 13: ...comply with the safety precautions in this document and relevant documents Maintain the equipment with sufficient knowledge of this document and using proper tools and testing equipment Before maintaining the equipment power it off and follow the instructions on the delayed discharge label to ensure that the equipment is powered off Place temporary warning signs or erect fences to prevent unauthor...

Page 14: ...rid Model Table 2 1 Model Replacement Relationship Original Version Original Model Numbe r of PV Strings Replacement Model SUN2000 V100R001 SUN2000 15KTL 6 SUN2000 15KTL M3 SUN2000 17KTL 6 SUN2000 17KTL M3 SUN2000 20KTL 6 SUN2000 20KTL M3 SUN2000 23KTL 6 SUN2000 23KTL M3 SUN2000 28KTL 6 SUN2000 28KTL M3 SUN2000 V200R001 SUN2000 33KTL 6 SUN2000 30KTL M3 SUN2000 33KTL E001 6 SUN2000 30KL A 6 SUN2000...

Page 15: ...S 8 SUN2000 33KTL NAM 3 SUN2000 36KTL US 8 SUN2000 36KTL NAM 3 SUN2000 40KTL US 8 SUN2000 40KTL NAM 3 Figure 2 1 Model description using the SUN2000 43KTL INM3 as an example Table 2 2 Model description No Description Value 1 Series name SUN2000 three phase grid tied PV string inverter 2 Power level 15K rated power of 15 kW 17K rated power of 17 kW 20K rated power of 20 kW 23K rated power of 23 kW ...

Page 16: ... Va Note a The maximum DC input voltage of some models is 1000 V For details see 11 Technical Specifications Networking Application The SUN2000 applies to the grid tied systems of industrial and commercial rooftops and small ground PV plants Typically a grid tied system consists of PV strings grid tied inverters AC switches and power distribution units Figure 2 2 Networking application single inve...

Page 17: ...Replacing SUN2000 15KTL 50KTL Series with SUN2000 15KTL 50KTL M3 Series User Manual 2 Overview Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 10 Figure 2 3 Power grid type ...

Page 18: ...Technologies Co Ltd 11 2 2 Appearance Figure 2 4 Appearance 1 LED indicator 2 Front panel 3 Heat sink 4 Screws for fixing the awning 5 Communications port COM 6 Hole for the DC switch locking screw 7 DC switch DC SWITCH 8 Smart Dongle port 4G WLAN FE 9 Ventilation valve 10 DC input terminals PV1 PV8 11 AC output port 12 Ground point ...

Page 19: ...ion Nameplate Figure 2 5 Nameplate 1 Trademark and product model 2 Key technical parameters 3 Label information 4 Company name and country of origin The nameplate figure is for reference only Enclosure Labels Symbol Name Description Delayed discharge Residual voltage exists after the SUN2000 is powered off It takes 5 minutes for the SUN2000 to discharge to the safe voltage ...

Page 20: ...allowed to perform operations on the SUN2000 High touch current exists after the SUN2000 is powered on Before powering on the SUN2000 ensure that the SUN2000 is properly grounded Refer to documentations Reminds operators to refer to the documentations delivered with the SUN2000 Grounding Indicates the position for connecting the PE cable Operation warning Do not remove the DC input connector or AC...

Page 21: ...dicates the serial number SUN2000 WiFi login QR code Scan the QR code to connect to the Huawei SUN2000 WiFi network 2 4 Working Principles 2 4 1 Circuit Diagram A SUN2000 can connect to a maximum of eight PV strings and has four MPPT circuits inside Each MPPT circuit tracks the maximum power point of two PV strings The SUN2000 converts DC power into single phase AC power through an inverter circui...

Page 22: ...awei Technologies Co Ltd 15 Figure 2 6 Schematic diagram In the SUN2000 V100R001 and SUN2000 V200R001 replacement scenarios only six PV strings can be connected to the SUN2000 Therefore you are advised not to use PV7 and PV8 2 4 2 Working Modes The SUN2000 can work in Standby Operating or Shutdown mode Figure 2 7 Working modes ...

Page 23: ...g 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 If the SUN2000 detects a fault or a shutdown command it enters the Shutdown mode The SUN2000 enters Standby mode after detecting that the PV string outp...

Page 24: ... 95 RH Store the SUN2000 in a clean and dry place and protect it from dust and water vapor corrosion A maximum of six SUN2000s can be stacked To avoid personal injury or device damage stack SUN2000s with caution to prevent them from falling over During the storage period check the SUN2000 periodically recommended every three months If any rodent bites are found on the packing materials replace the...

Page 25: ...ctric shocks After the SUN2000 is powered off the remaining electricity and heat may still cause electric shocks and body burns Therefore put on protective gloves and begin operating the SUN2000 five minutes after the power off 4 1 Removing the SUN2000 V100R001 Step 1 Power off the SUN2000 to be replaced Step 2 Remove the AC connector 1 Press the locking plate on the AC output wiring terminal with...

Page 26: ...iginal SUN2000 Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 19 Figure 4 2 Removing the AC output cable Step 4 Remove the DC connectors Figure 4 3 Removing DC connectors Step 5 Remove the RS485 communications cable Figure 4 4 Removing the RS485 communications cable Step 6 Remove the PE cable ...

Page 27: ...3 Series User Manual 4 Removing the Original SUN2000 Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 20 Figure 4 5 Removing the PE cable Step 7 Optional Open the anti theft lock Figure 4 6 Opening the anti theft lock Step 8 Remove the two hexagonal screws ...

Page 28: ... 4 Removing the Original SUN2000 Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 21 Figure 4 7 Removing screws Step 9 Remove the SUN2000 from the back panel Figure 4 8 Removing the SUN2000 Step 10 Remove the nuts spring washers and flat washers and then remove the back panel ...

Page 29: ...021 04 05 Copyright Huawei Technologies Co Ltd 22 Figure 4 9 Removing the back panel End 4 2 Removing the SUN2000 V200R001 Step 1 Power off the SUN2000 to be replaced Step 2 Open the maintenance compartment door Figure 4 10 Opening the maintenance compartment door Step 3 Install the support bar and remove the AC terminal cover ...

Page 30: ...ving the AC terminal cover Step 4 Remove the AC power cable The SUN2000 40KTL is used as an example Figure 4 12 Removing the AC power cable If the AC terminal of the original inverter is a 3 pin terminal use an M8 torque wrench to remove the terminal If the AC terminal of the original inverter is a 4 pin terminal use an M6 torque wrench to remove the terminal Step 5 Remove the DC connectors ...

Page 31: ...3 Series User Manual 4 Removing the Original SUN2000 Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 24 Figure 4 13 Removing DC power cables Step 6 Remove the signal cables Figure 4 14 RJ45 network port Figure 4 15 Terminal block Step 7 Remove the PE cable ...

Page 32: ... Series User Manual 4 Removing the Original SUN2000 Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 25 Figure 4 16 Removing the PE cable Step 8 Optional Open the anti theft lock Figure 4 17 Opening the anti theft lock Step 9 Remove the two hexagonal screws ...

Page 33: ...4 Removing the Original SUN2000 Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 26 Figure 4 18 Removing screws Step 10 Remove the SUN2000 from the back panel Figure 4 19 Removing the SUN2000 Step 11 Remove the nuts spring washers and flat washers and then remove the back panel ...

Page 34: ...Co Ltd 27 Figure 4 20 Removing the back panel End 4 3 Removing the SUN2000 V200R002 Step 1 Power off the SUN2000 to be replaced Step 2 Remove the two security Torx screws from the maintenance compartment door using a security Torx wrench and open the maintenance compartment door Figure 4 21 Opening the maintenance compartment door Step 3 Remove the AC terminal cover ...

Page 35: ...opyright Huawei Technologies Co Ltd 28 Figure 4 22 Removing the AC terminal cover Step 4 Remove the AC output power cable using a five core cable for the SUN2000 29 9KTL 33KTL A 36KTL as an example Figure 4 23 Removing the AC power cable Step 5 Remove the DC connectors Figure 4 24 Removing DC power cables Step 6 Remove the signal cables ...

Page 36: ...eries User Manual 4 Removing the Original SUN2000 Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 29 Figure 4 25 Connecting cables to the terminal block Figure 4 26 Connecting cables to the RJ45 network port Step 7 Optional Remove the FE communications cable ...

Page 37: ...Huawei Technologies Co Ltd 30 Figure 4 27 Removing the FE communications cable Step 8 Remove the PE cable and remove the crimped OT terminal Set the cable aside for future use Figure 4 28 Removing the PE cable Step 9 Remove the two security Torx screws Figure 4 29 Removing security Torx screws Step 10 Remove the SUN2000 from the mounting bracket ...

Page 38: ...N2000 15KTL 50KTL M3 Series User Manual 4 Removing the Original SUN2000 Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 31 Figure 4 30 Removing the SUN2000 Step 11 Remove the mounting bracket Figure 4 31 Removing the mounting bracket End ...

Page 39: ...l is not what you requested do not unpack the package and contact your supplier as soon as possible 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 is found or any component is missing contact your supplier For details about the number of conten...

Page 40: ... Type Tools and Instruments Diagonal pliers Wire stripper Torque screwdriver Rubber mallet Utility knife Cable cutter Crimping tool model PV CZM 22100 Open end wrench model PV MS HZ or PV MS open end wrench Cable tie Vacuum cleaner Multimeter DC voltage measurement range 1100 V DC Marker Steel measuring tape Level Hydraulic pliers Heat shrink tubing Heat gun ...

Page 41: ...00 will be corroded in salt areas and the salt corrosion may cause fire Do not install the SUN2000 outdoors in salt areas A salt area refers to the region within 500 m from the coast or prone to sea breeze The effect from sea breeze depends on weather conditions such as typhoon and season wind or terrains such as dams and hills Site Requirements The SUN2000 should be installed in a well ventilated...

Page 42: ...d by the SUN2000 is noticeable Installation Angle Requirements The SUN2000 can be wall mounted or support mounted Requirements for the installation angle Install the SUN2000 vertically or at a maximum back tilt of 15 degrees to facilitate heat dissipation Do not install the SUN2000 with a front tilt excessive back tilt side tilt horizontally or upside down Figure 5 1 Installation angle Installatio...

Page 43: ...05 Copyright Huawei Technologies Co Ltd 36 Figure 5 2 Installation space When installing multiple SUN2000s install them in horizontal mode if ample space is available and install them in triangle mode if no ample space is available Stacked installation is not recommended Figure 5 3 Horizontal installation recommended ...

Page 44: ... with SUN2000 15KTL 50KTL M3 Series User Manual 5 Installation Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 37 Figure 5 4 Two layer triangle installation recommended Figure 5 5 Three layer triangle installation not recommended ...

Page 45: ...ies Co Ltd 38 Figure 5 6 Stacked installation not recommended Figure 5 7 Back to back installation not recommended The installation diagrams are for reference only and are irrelevant to the SUN2000 cascading scenario 5 4 Moving the SUN2000 Procedure Step 1 Lift the SUN2000 from the packing case and move it to the specified installation position ...

Page 46: ...t any weight of the SUN2000 Place a foam pad or cardboard under the SUN2000 to protect the SUN2000 enclosure from damage Figure 5 8 Moving the SUN2000 End 5 5 Installing the SUN2000 5 5 1 SUN2000 V100R001 V200R001 Replacement Scenario Installation Precautions The security Torx wrench is bound to the rear of the mounting bracket Before installing the mounting bracket remove the security Torx wrench...

Page 47: ... it is recommended that the mounting bracket be secured at hole 2 If it is difficult to connect cables at this height select holes based on the original cable length The AC power cable length requirements should be preferentially met In the SUN2000 V200R001 replacement scenario it is recommended that the mounting bracket be secured at hole 5 If it is difficult to connect cables at this height sele...

Page 48: ...g kits must be identical to the original one The mounting holes can be directly aligned with those on the support However if you install the mounting bracket on a wall you need to make new holes SUN2000 V100R001 replacement Figure 5 11 Installing two mounting brackets together Figure 5 12 Installing the mounting brackets SUN2000 V100R001 replacement Figure 5 13 Installing two mounting brackets tog...

Page 49: ...User Manual 5 Installation Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 42 Figure 5 14 Installing the mounting brackets Step 2 Install the SUN2000 onto the mounting bracket Figure 5 15 Installing the SUN2000 Step 3 Tighten the screws on both sides of the SUN2000 ...

Page 50: ...yright Huawei Technologies Co Ltd 43 Figure 5 16 Tightening screws on the SUN2000 End 5 5 2 SUN2000 V200R002 Replacement Scenario Installation Precautions Before installing the mounting bracket remove the security Torx wrench and set it aside Figure 5 17 Position for binding the security Torx wrench 1 Security Torx wrench ...

Page 51: ... adapter box is adjustable Ensure that the six screws are all securely installed Figure 5 19 Adjusting the height of the AC adapter box Procedure Step 1 Optional Install the locking screw for the DC switch The DC switch locking screw is used to lock the DC switch to prevent the switch from rotating For models used in Australia install the DC switch locking screw according to local standards The DC...

Page 52: ... mounting bracket select mounting holes based on the original cable length to adjust the mounting bracket height The AC power cable length requirements should be preferentially met The mounting bracket and AC adapter box are not delivered with the SUN2000 The mounting holes of the engineering mounting kits must be identical to the original one The mounting holes can be directly aligned with those ...

Page 53: ... the security Torx screws on both sides of the SUN2000 Figure 5 23 Securing the SUN2000 Step 5 Optional Install the AC adapter box on the mounting bracket Figure 5 24 Installing theAC adapter box If the original AC output power cable and signal cables are long enough to connect to the AC port on the SUN2000 you do not need to install an AC adapter box Secure the SUN2000 before installing the AC ad...

Page 54: ...5 Installation Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 47 When installing the AC adapter box align the mounting holes on the left to locate the mounting position Step 6 Tighten the two screws on the left of the AC adapter box Figure 5 25 Securing theAC adapter box End ...

Page 55: ...ment damage caused by incorrect cable connections is beyond the warranty scope Only certified electrician can perform electrical terminations Wear proper PPE at all time when terminating cables 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 diag...

Page 56: ...ccur The PE point at the AC output port is used only as a PE equipotential point and cannot substitute for the PE point on the enclosure It is recommended that silica gel or paint be used around the ground terminal after the PE cable is connected Procedure Step 1 Connect the PE cable Figure 6 1 Connecting the PE Cable 1 Standby protection ground point End 6 2 2 Installing the AC Output Power Cable...

Page 57: ...ds between the SUN2000 and the AC switch Use a socket wrench and extension rod to connect the AC power cable The extension rod must be longer than 100 mm Do not install third party devices in the AC connection box Procedure Step 1 Remove the AC terminal box and install partition boards Figure 6 2 Removing the AC terminal box Step 2 Route the AC power cable through the AC connection box ...

Page 58: ...epare OT terminals In the SUN2000 V100R001 replacement scenario you need to crimp OT terminals In the SUN2000 V200R001 replacement scenario if the original AC power cable uses M6 OT terminals replace the terminals with the M8 OT terminals delivered in the package In the SUN2000 V200R001 replacement scenario two types of AC wiring terminals are supported one long one short You can select a type bas...

Page 59: ...nd that the DC switch on the SUN2000 is OFF Failing to do so may result in electric shocks When the SUN2000 is running it is not allowed to work on the DC input power cables such as connecting or disconnecting a PV string or a PV module in a PV string Failing to do so may cause electric shocks If no PV string connects to a DC input terminal of the SUN2000 do not remove the watertight cap from the ...

Page 60: ...e connectors Correct the PV string polarity before reconnecting the PV string to the SUN2000 The SUN2000 does not support power supplies other than PV strings Since the output of the PV string connected to the SUN2000 cannot be grounded ensure that the PV module output is well insulated to ground During the installation of PV strings and the SUN2000 the positive or negative terminals of PV strings...

Page 61: ... with high rigidity such as armored cables are not recommended as DC input power cables because poor contact may be caused by the bending of the cables Before assembling DC connectors label the cable polarities correctly to ensure correct cable connections After the positive and negative connectors snap into place pull the DC input power cables back to ensure that they are connected securely Use t...

Page 62: ...les are not long enough use the DC input extension cables delivered with the package Figure 6 9 Connecting the DC input extension cable End 6 2 4 Connecting the Signal Cables COM Port Pin Definitions Ensure that the protection layers of the cables are inside the connector that excess core wires are cut off from the protection layer that the exposed core wires are totally inserted into the cable ho...

Page 63: ...L 50 KTL M3 Series COM Port Function No Color Function No Function No Definition 1 White and orange RS485A 5 RS485A IN 1 485A1 1 RS485 differential signal 4 Blue RS485A 6 RS485A OUT 2 485A1 2 RS485 differential signal 2 Orang e RS485B 7 RS485B IN 3 485B1 1 RS485 differential signal 5 White and blue RS485B 8 RS485B OUT 4 485B1 2 RS485 differential signal 5 PE Shield layer grounding 6 PE Shield laye...

Page 64: ...TL M3 Series User Manual 6 Electrical Connections Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 57 Figure 6 11 Terminal block Figure 6 12 Signal cable definitions of the terminal block Figure 6 13 COM port Scenario Where No Signal Cable Is Connected ...

Page 65: ...se a waterproof plug to block the cable hole of the signal cable connector and connect the signal cable connector to the communications port on the SUN2000 to improve the waterproof performance Figure 6 14 Connecting the signal cable connector 6 2 4 1 Communication Modes RS485 Communication Figure 6 15 SmartLogger networking It is recommended that the number of SUN2000s connected to each RS485 rou...

Page 66: ...ugh the communications board for transmission The built in MBUS module in the SUN2000 does not need to be connected to cables The spare parts of SUN2000 V100R001 do not support MBUS communication 6 2 4 2 Optional Connecting the RS485 Communications Cable to the SUN2000 Procedure Step 1 If the original signal cable is connected through RJ45 network ports cut off the RJ45 connectors Figure 6 16 Cut ...

Page 67: ...rical Connections Issue 01 2021 04 05 Copyright Huawei Technologies Co Ltd 60 Figure 6 17 Connecting the cable Step 3 Connect the signal cable connector to the COM port Figure 6 18 Securing the signal cable connector End 6 3 SUN2000 V200R002 Replacement Scenario 6 3 1 Connecting the PE Cable ...

Page 68: ...r the PE point on the enclosure It is recommended that silica gel or paint be used around the ground terminal after the PE cable is connected Procedure Step 1 Crimp an OT terminal Avoid scratching the core wire when stripping a cable The cavity formed after the conductor crimp strip of the OT terminal is crimped must wrap the core wires completely The core wires must contact the OT terminal closel...

Page 69: ...opyright Huawei Technologies Co Ltd 62 4 OT terminal 5 Crimping tool 6 Heat gun Step 2 Install the PE cable Figure 6 20 Installing the PE cable 1 Standby protection ground point Step 3 Optional If an AC adapter box is installed connect the PE cable to the AC adapter box Figure 6 21 Connecting the PE cable to theAC adapter box End ...

Page 70: ...connected securely Before Replacement RJ45 Network Port Before Replacement Termina l Block SUN2000 15KTL 50KTL M3 Series COM Port No Color Function No Function No Definition Function 1 White and orange RS485A 1 RS485A IN 1 485A1 1 RS485 differential signal 4 Blue RS485A 2 RS485A OUT 2 485A1 2 RS485 differential signal 2 Orange RS485B 3 RS485B IN 3 485B1 1 RS485 differential signal 5 White and blue...

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