Huawei SmartGuard-63A-S0 User Manual

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SmartGuard-63A-(S0, AUS0)

User Manual

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Date

2025-07-01

HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

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Page 1 SmartGuard-63A-(S0, AUS0) User Manual Issue Date 2025-07-01 HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Page 2 Notice The purchased products, services and features are stipulated by the contract made between Huawei Digital Power Technologies Co., Ltd. and 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"...
Page 3 About This Document About This Document Purpose This document describes the SmartGuard-63A-S0 and SmartGuard-63A-AUS0 in terms of safety precautions, product introduction, installation, electrical connections, power-on and commissioning, maintenance, and technical specifications. Read this document carefully before installing and using the SmartGuard.
Page 4 Compartment. ● Updated 7.3 Alarm Reference. Issue 02 (2023-11-06) ● Updated Networking. ● Updated F Using Smart Appliances (Owner). Issue 01 (2023-09-19) This issue is the first official release. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 5 5.3 Opening the Maintenance Compartment........................42 5.4 Installing the Grid AC Output Power Cable......................... 44 5.5 Installing the Inverter AC Input Power Cable......................47 5.6 Installing the Backup Load Output Power Cable.......................49 Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 6 F Using Smart Appliances (Owner)..................99 F.1 Intelligent Load Shedding..............................99 F.2 Generator Settings................................102 F.3 Forced Switching for the SmartGuard......................... 104 G Contact Information......................105 H Digital Power Customer Service..................107 Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 7 SmartGuard-63A-(S0, AUS0) User Manual Contents I Initial Certificate Risk Disclaimer..................108 J Acronyms and Abbreviations.................... 109 Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 9 D ANGER During operations, use dedicated insulated tools to prevent electric shocks or short circuits. The dielectric withstanding voltage level must comply with local laws, regulations, standards, and specifications. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 10 Professionals: personnel who are familiar with the working principles and structure of the equipment, trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation, operation, maintenance Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 11 WARNING For the equipment that needs to be grounded, install the ground cable first when installing the equipment and remove the ground cable last when removing the equipment. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 12 ● Before maintaining a downstream electrical or power distribution device, turn off the output switch on the power supply equipment. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 13 ● When routing cables, reserve at least 30 mm clearance between the cables and heat-generating components or areas. This prevents deterioration or damage to the cable insulation layer. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 14 Otherwise, its performance and safety will be compromised. ● The operating temperature range provided in the equipment's technical specifications refers to the ambient temperatures in equipment's installation environment. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 15 Do not use tools that have signs of scratches or fail to pass the inspection or whose inspection validity period has expired. Ensure that the tools are secure and not overloaded. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 16 Move a heavy object stably with balanced force at an even and low speed. Put down the object stably and slowly to prevent any collision or drop from scratching the surface of the equipment or damaging the components and cables. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 17 If a single ladder is used, the recommended angle for the ladder against the floor is 75 degrees, as shown in the following figure. A square can be used to measure the angle. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 18 Do not drag steel ropes and hoisting tools or bump the hoisted objects against hard objects during hoisting. ● Ensure that the angle between two hoisting ropes is no more than 90 degrees, as shown in the following figure. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 19 To avoid short circuits or other risks, do not drill holes into buried pipes or cables. ● When drilling holes, protect the equipment from shavings. After drilling, clean up any shavings. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 20 The SmartGuard contains the EMMA, which can connect to PV systems, ESSs, smart chargers, and smart loads. In addition to unified scheduling of home energy, the EMMA can connect to smart appliances such as Huawei chargers, SG Ready heat pumps, smart switches, and other smart loads. Users can set the reservation time to charge vehicles and heat water in advance at the specified time.
Page 21 In this case, you need to shut down some loads. Alternatively, connect loads with lower priority to the non-backup load port. Step 1 Residential load classification (dashed boxes indicate optional components) Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 22 Step 2 Classification of loads connected to the SmartGuard (dashed boxes indicate optional components) (A) Load not connected (B) Backup load (C) Non-backup load to the SmartGuard (D) Power meter (E) AC power distribution box ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 23 ● The PE cable with must be connected to the PE bar of the AC power distribution box. ● Only the SmartGuard-63A-S0 supports L1/L2 dual-live-wire connection. If L1/L2 dual- live-wire connection is selected, the inverter output mode must be set to L1/L2 during device commissioning.
Page 24 The SmartGuard is used in a residential rooftop on/off-grid system. The system consists of the PV strings, ESS, inverter, SmartGuard, grid, generator, and loads. Figure 2-4 Networking with all loads connected to the SmartGuard (dashed boxes indicate optional components) Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 25 ● The main circuit breaker with the leakage protection function must be installed. The rated leakage current must be greater than or equal to the number of inverters multiplied by 100 mA. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 26 > generator power generation ● The ESS models in the same power plant must be the same. For details about ESS capacity configuration, see LUNA2000-(5-30)-S0 User Manual LUNA2000-(7, 14, 21)-S1 User Manual. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 28 The SmartGuard supports TN-S, TN-C-S, and TT systems. In the TT power grid, the N-to-PE voltage must be less than 30 V. Figure 2-7 Earthing system (L/N single-live-wire connection) Figure 2-8 Earthing system (L1/L2 dual-live-wire connection) Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 29 V/240 V. Do not connect any other rated AC voltage. Otherwise, the device will be damaged. ● Only the SmartGuard-63A-S0 supports L1/L2 dual-live-wire connection. If L1/L2 dual- live-wire connection is selected, the inverter output mode must be set to L1/L2 during device commissioning.
Page 30 Note a: Only authorized personnel can open the maintenance compartment cover to perform electrical connections. Note b: During deployment and normal use, do not operate the bypass switch. Ensure that the bypass switch is off. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 31 ● Seamless switchover from on-grid mode to off-grid mode can be enabled or disabled. For details, see 6.4.3 Whole-House Power Backup Settings (Seamless Switchover). Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 32 ● If the SmartGuard is abnormal and cannot work, consult the customer service personnel and refer 7.4 Operations on the Bypass Switch of the SmartGuard. Improper operations may cause electric shocks. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 33 Do not touch the boards in the SmartGuard. QR code for Scan the QR code to connect WLAN connection to the WLAN of the SmartGuard. Grounding Indicates the position for connecting the PE cable. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 34 SmartGuard-63A-(S0, AUS0) User Manual 2 Product Description Product Nameplate Figure 2-13 Nameplate (SmartGuard-63A-S0 as an example) (1) Trademark and (2) QR code for (3) Key technical model accessing product specifications documentation (4) Compliance symbols (5) Company name and country of origin NO TE The nameplate figure is for reference only.
Page 35 ● If the SmartGuard has been stored for two years or longer, it must be checked and tested by professionals before use. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 36 Install the SmartGuard in a well-ventilated environment to ensure good heat dissipation. ● You are advised to install the SmartGuard in a sheltered area or install an awning over it. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 37 4.2.2 Clearance Requirements Installation Clearance Requirements ● Dimensions of mounting holes for the SmartGuard Figure 4-1 Mounting bracket dimensions ● Reserve sufficient clearances around the device for installation and heat dissipation. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 38 Do not install the SmartGuard at forward tilted, excessive backward tilted, side tilted, horizontal, or upside down positions. Figure 4-3 Installation angle 4.3 Preparing Tools Table 4-2 Personal protective equipment (PPE) Safety helmet Goggles Reflective vest Insulated shoes Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 39 Cable cutter Diagonal pliers Wire stripper Torque wrench Signal cable Power cable RJ45 crimping Hydraulic pliers crimping tool crimping tool tool Eject pin Utility knife Marker Steel measuring tape Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 40 For details about the number of deliverables, see the 4.5 Moving the SmartGuard Put your hands on both sides of the SmartGuard, take the SmartGuard out of the packing case, and move it to the installation position. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 41 The service life of the mounting brackets shall be at least 10 years. Figure 4-4 Expansion bolt composition (1) Hexagonal (2) Flat washer (3) Sleeve (4) Conical nut bolt Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 42 (do not need to remove them). Figure 4-5 Installing expansion bolts Step 3 Install the SmartGuard on the mounting bracket and tighten the nuts. Figure 4-6 Installing the SmartGuard ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 43 ● Operation personnel must wear proper PPE when connecting cables. ● Before connecting cables to ports, leave enough slack to reduce the tension on the cables and prevent poor cable connections. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 44 Huawei an external antenna to enhance WLAN signals. ● Part number: 27014721 ● SUN2000-(8K, 10K)-LC0 Purchased Inverter from Huawei ● SUN2000-(2KTL-6KTL)-L1 Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 45 (EMMA) 5E outdoor shielded sectional area: network cable (internal customer 0.12–0.2 mm resistance ≤ 1.5 ● Cable outer ohms/10 m), and a diameter: 4–8 mm shielded RJ45 connector Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 46 – SUN2000-10K- bonding point at the LC0 series: 10 AC output port: three-core (L, N, and PE, or L1, L2, and PE) ● Cable outer outdoor copper cable diameter: 10–21 Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 47 Note a: The SmartGuard is connected to the inverter through a signal cable (part number: 04072551) purchased from Huawei, as shown in the following figure. Note b: The PE of the SmartGuard-63A-S0 backup power port needs to be connected, but the PE of the SmartGuard-63A-AUS0 backup power port does not need to be connected.
Page 48 ● Use a heat gun carefully to avoid heat damage to the equipment. Figure 5-3 Crimping an OT terminal (A) Core wire (B) Insulation layer (C) Heat shrink tubing (D) Hydraulic pliers (E) Heat gun Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 49 ● Do not leave unused screws in the maintenance compartment. Procedure Step 1 Unlock and open the maintenance compartment door using the delivered key, and remove the cushioning material. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 50 Step 2 Turn off the four switches shown in the figure. Step 3 Remove the screw from the maintenance compartment cover, and open the cover. Figure 5-6 Opening the maintenance compartment cover ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 51 SmartGuard. ● Only the SmartGuard-63A-S0 supports L1/L2 dual-live-wire connection. If L1/L2 dual-live-wire connection is selected, the inverter output mode must be set to L1/L2 during device commissioning. Otherwise, the system will generate an alarm.
Page 52 Figure 5-10 Crimping AC cord end terminals (L1/L2 dual-live-wire connection) Step 3 Connect the grid AC output power cable. Figure 5-11 Connecting the grid AC output power cable (L/N single-live-wire connection) Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 53 ● Ensure that the cables are not twisted. NO TE The cable colors shown in the figures are for reference only. Select an appropriate cable according to the local standards. ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 54 Shut down the inverter, and turn off the DC switches of the inverter and ESS. ● Only the SmartGuard-63A-S0 supports L1/L2 dual-live-wire connection. If L1/L2 dual-live-wire connection is selected, the inverter output mode must be set to L1/L2 during device commissioning. Otherwise, the system will generate an alarm.
Page 55 Inverter Model SUN2000-(8K, 10K)-LC0 SUN2000-(2KTL- 6KTL)-L1 Figure 5-15 Connecting the inverter AC input power cable (L/N single-live-wire connection) Figure 5-16 Connecting the inverter AC input power cable (L1/L2 dual-live-wire connection) Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 56 SmartGuard. ● Only the SmartGuard-63A-S0 supports L1/L2 dual-live-wire connection. If L1/L2 dual-live-wire connection is selected, the inverter output mode must be set to L1/L2 during device commissioning. Otherwise, the system will generate an alarm.
Page 57 SmartGuard-63A-(S0, AUS0) User Manual 5 Electrical Connections Figure 5-17 Crimping SmartGuard-63A-S0 AC cord end terminals Figure 5-18 Crimping SmartGuard-63A-AUS0 AC cord end terminals Step 2 Connect the backup load output power cable. Figure 5-19 Connecting the backup load output power cable of the...
Page 58 SmartGuard-63A-(S0, AUS0) User Manual 5 Electrical Connections Figure 5-20 Connecting the backup load output power cable of the SmartGuard-63A-AUS0 Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 59 SmartGuard. ● Only the SmartGuard-63A-S0 supports L1/L2 dual-live-wire connection. If L1/L2 dual-live-wire connection is selected, the inverter output mode must be set to L1/L2 during device commissioning. Otherwise, the system will generate an alarm.
Page 60 Figure 5-22 Crimping AC cord end terminals (L1/L2 dual-live-wire connection) Step 2 Connect the non-backup load output power cable. Figure 5-23 Connecting the non-backup load output power cable (L/N single-live- wire connection) Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 61 ● Ensure that the cables are not twisted. NO TE The cable colors shown in the figures are for reference only. Select an appropriate cable according to the local standards. ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 62 COM-3 DO_INV Digital output signal+ Connect to the on/off-grid control signal ports of the COM-4 CGND inverter. DO_INV_CGND COM-5 DO_DG Digital output signal+ Connect to the generator control signal port. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 64 485A2 RS485B, RS485 differential Connect to the RS485 port of signal+ the power meter if some of loads are connected to the 485B2 RS485A, RS485 differential SmartGuard. signal– Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 65 When the SG Ready heat pump provides 12 V power supply, the EMMA directly controls the heat pump. When the SG Ready heat pump cannot provide 12 V power supply, the EMMA controls the heat pump through an external relay. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 66 Step 2 (Optional) If some of loads are connected to the SmartGuard, connect the power meter communications cable. Figure 5-30 Connecting the power meter communications cable (A) L/N single-live-wire connection (B) L1/L2 dual-live-wire connection Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 67 Step 3 (Optional) Connect the FE communications cable. NO TE ● The LAN port can be used to connect one Huawei charger or ESS to the EMMA through ● The SmartGuard can be connected to smart switches and other smart loads. For details...
Page 68 SmartGuard-63A-(S0, AUS0) User Manual 5 Electrical Connections Figure 5-32 Connecting EMMA signal cables (dashed boxes indicate optional components) ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 70 Switch of the SmartGuard. Misoperations may cause electric shocks. ● Currently, only one inverter can be connected. Turn on the switches based on the model of the connected inverter. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 71 Figure 6-3 Closing the maintenance compartment door ----End 6.3 System Power-On Precautions D ANGER ● Wear personal protective equipment and use dedicated insulated tools to avoid electric shocks or short circuits. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 72 Step 4 Turn on the main circuit breaker. Step 5 Check that the SmartGuard is running in on-grid mode. Observe the LED indicators on the inverter, ESS, EMMA, and SmartGuard to check the running status. ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 73 (Optional) Turn on the DC switch (if any) between the PV strings and the inverter. (Optional) Remove the locking screw for the DC SWITCH of the inverter. Set the DC SWITCH of the inverter to ON. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 74 (on for 1s management system is normal. and then off for Blinking green The communication with the fast (on for management system is interrupted. 0.125s and then off for 0.125s) Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 75 Step 3 After checking that the residential load circuit is not short-circuited, turn on the backup load and non-backup load switches. Step 4 (Optional) Set Huawei charger route parameters. ----End Method 2: Off-Grid Power-On (with PV Strings) CA UTION ●...
Page 76 ● For details about how to set ESS parameters, inverter parameters, and physical layout of optimizers, see Residential Smart PV Solution Quick Guide (Single-Phase PV+ESS Scenario + SmartGuard Networking). Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 77 If surplus PV power is fed into the grid, the parameter of limited feed-in power can be set to ensure that the feed-in power is within the range specified by the grid company. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 78 ● The seamless switching function of the SmartGuard can be used to switch from on-grid mode to off-grid mode or from generator off-grid mode to inverter off- grid mode. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 79 Warning of battery backup time in off- Threshold (min) grid scenarios. Figure 6-5 Whole-house power backup settings 6.4.4 Setting Off-Grid Mode for the Inverter After the off-grid mode is set, the inverter supports off-grid operation. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 80 Set > Feature parameters and enable Off-grid mode. SmartGuard must be selected when the system is powered on for the first time in off-grid mode. Otherwise, the system will not work. Figure 6-7 Setting off-grid mode Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 81 Connect to the EMMA. On the home screen, choose Monitor > Inverter, choose Set > Grid parameters, and set the inverter output mode to L1/L2. Figure 6-8 Setting the output mode Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 82 Figure 6-9 Setting the output mode 6.4.6 (Optional) Setting the External WLAN Antenna CA UTION An external WLAN antenna needs to be purchased from Huawei. To use the external WLAN antenna, set Selected antenna to External signal. Connect to the EMMA.
Page 83 Setting Generator Parameters Connect to the EMMA. On the home screen, choose Monitor > Genset > Set, and set generator parameters. Figure 6-12 Setting generator parameters Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 84 ESS discharges to End-of-discharge SOC. ● For details about how to set End-of- discharge SOC for the ESS, see 6.4.2 Setting ESS Parameters in the ESS user manual. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 85 6.5 Verifying On/Off-Grid Switchover 6.5.1 Verifying On/Off-Grid Switching After the system is powered on for the first time, verify the on/off-grid switching. Ensure that the bypass switch is off. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 86 Setting the Generator Control Mode. Step 4 (Optional) Tap Shut Down on the FusionSolar app to shut down the generator. For details, see Setting the Generator Control Mode. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 87 Check and try again. ● If switching to off-grid mode fails, the load power may be too high or the backup load may be abnormal. Check and try again. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 88 Set the DC SWITCH of the inverter to OFF. (Optional) Install the locking screw for the DC SWITCH. (Optional) Turn off the DC switch between the inverter and PV strings. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 89 SmartGuard are locked. Grounding Check whether the PE cable is securely 6 months after the reliability connected. first commissioning and once every 6 to 12 months after that Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 90 Step 2 Power off the system. For details, see 7.1 System Power-Off. Step 3 Perform operations on the SmartGuard bypass switch. Open the maintenance compartment door and turn off the four switches shown in the figure. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 91 ----End 7.5 Replacing the SmartGuard Precautions D ANGER ● Wear personal protective equipment and use dedicated insulated tools to avoid electric shocks or short circuits. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 92 Step 5 Install a new SmartGuard. For details, see 4 System Installation. Step 6 Perform electrical connections. For details, see 5 Electrical Connections. Step 7 Commission the SmartGuard. For details, see 6 System Commissioning. ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 93 On/Off-grid switchover 20 ms time (fast switchover) Home energy Available management system (EMMA) Remote generator Automatic or manual startup Generator DO port 1–100 mA, ≤ 24 V Bypass mode Manual Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 94 50°C, the current is linearly derated from 54.5 A to 50 A. Wireless Communication Specifications Item WLAN Frequency 2400–2483.5 MHz Protocol standard WLAN 802.11b/g/n Bandwidth ≤ 20 MHz Maximum transmit power ≤ 20 dBm E.I.R.P. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 95 External WLAN Antenna Specifications Item WLAN Frequency 2400–2483.5 MHz Gain ≤ 4 dBi Port RP-SMA-J reverse-polarity male connector (with inner threads and inner holes) Mounting mode By magnet Cable length Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 96 Figure A-1 Method 1: before login (not connected to the Internet) Figure A-2 Method 2: after login (connected to the Internet) Step 2 Connect to the inverter WLAN, log in as Installer, and access the device commissioning screen. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 97 WLAN, tap CONNECT. Otherwise, you cannot log in to the system. The actual UI and messages may vary with mobile phones. ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 98 If the phone is not connected to a network, prepare the upgrade package before upgrading the inverter. Connect to the inverter, choose Maintenance > Upgrade on the home screen, and select the corresponding inverter version. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 99 Figure C-1 Method 1: before login (not connected to the Internet) Figure C-2 Method 2: after login (connected to the Internet) Step 2 Connect to the EMMA WLAN, log in as Installer, and access the device commissioning screen. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 100 WLAN, tap CONNECT. Otherwise, you cannot log in to the system. The actual UI and messages may vary with mobile phones. ----End Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 101 Operating 220/230/240 V The operating voltage range of the ATS may voltage affect the HVRT and undervoltage protection functions of the system. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 102 3. Enhanced insulation design is required connection is within ±100 ms. between the ATS signal port and the AC circuit. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 103 SmartGuard-63A-(S0, AUS0) User Manual D ATS Parameter Requirements Figure D-1 Position feedback signal upon grid connection Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 104 24 V. SmartGuard may work abnormally. 4. Enhanced insulation design is required between the port on the generator side and the AC circuit of the generator. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 105 AC circuit of the signal is less than generator. or equal to 100 ohms. Figure E-1 Generator control signal Figure E-2 Generator alarm signal Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 106 Consumption User Manual . F.1 Intelligent Load Shedding Huawei FusionSolar SmartPVMS adapts to the dynamic load shedding plans for power grids in South Africa and enables users to formulate power backup plans on the FusionSolar app based on the power supply or load shedding duration, ensuring sufficient battery energy for loads during load shedding.
Page 107 Min. SOC for off-grid power backup(%) by default. Time-based You can set Time-based SOC (%) based SOC (%) on the outage plan to specify the power backup plan. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 108 Step 2 (Optional) Enable the EMMA. Figure F-2 Enabling the EMMA Step 3 After the setting is complete, view Intelligent Load Shedding of each day on the Home screen. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 109 Log in to the FusionSolar app using an owner account. On the Home screen, choose PV+ESS Devices > Device > Generator, and set parameters in Generator Control and Parameter settings. Figure F-4 Generator control settings Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 110 Value Description Range Rated power (kW) 1–500 Indicates the rated power of the generator. Max output power 0–100 Indicates the maximum output power ratio of ratio (%) the generator. Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 111 If you tap Switch when the system is in off-grid mode, the system attempts to switch to the on-grid mode and automatically exits the forced switching mode. Figure F-6 Forced switching Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 112 To ensure faster and better services, we kindly request your assistance in providing the following information: ● Model ● Serial number (SN) ● Software version ● Alarm ID or name ● Brief description of the fault symptom Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 113 SmartGuard-63A-(S0, AUS0) User Manual G Contact Information NO TE EU Representative Information: Huawei Technologies Hungary Kft. Add.: HU-1133 Budapest, Váci út 116-118., 1. Building, 6. floor. Email: hungary.reception@huawei.com Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 114 SmartGuard-63A-(S0, AUS0) User Manual H Digital Power Customer Service Digital Power Customer Service https://digitalpower.huawei.com/robotchat/ Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 115 Huawei's initial certificates are used only in the deployment phase, for establishing initial security channels between devices and the customer's network. Huawei does not promise or guarantee the security of the initial certificates. Customers shall bear consequences of all security risks and security incidents arising from using Huawei's initial certificates as service certificates.
Page 116 SmartGuard-63A-(S0, AUS0) User Manual J Acronyms and Abbreviations Acronyms and Abbreviations alternating current application automatic transfer switch communication digital input digital output Ethernet gigabit Ethernet Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 117 J Acronyms and Abbreviations local area network light-emitting diode normally closed normally open power over Ethernet protective earthing reset relative humidity state of charge state of health serial number wide area network Issue 06 (2025-07-01) Copyright © Huawei Digital Power Technologies Co., Ltd.

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