Page 1 DT500L1-EUA1 Liquid-Cooled DC Charging Dispenser Maintenance Guide Issue Date 2024-08-06 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
Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 4: Change History
Change History Changes between document issues are cumulative. The latest document issue contains all the changes made in earlier issues. Issue 01 (2024-08-06) This issue is the first official release. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 5: Table Of Contents
4.2.8 Replacing an Antenna..............................41 4.2.9 Replacing Buttons Under the Display.........................45 4.2.10 Replacing a Display................................ 47 4.2.11 Replacing a Top Light..............................49 4.2.12 Replacing Cables................................51 4.2.13 Replacing an Emergency Stop Button........................54 Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 6 C.5 How Do I Reset the WiFi Password or Login Password for the Power Unit?..........170 C.6 Device Commissioning After Adding a Charging Dispenser................172 C.7 How Do I Repair Paint Damage?..........................178 Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 7 DT500L1-EUA1 Liquid-Cooled DC Charging Dispenser Maintenance Guide Contents C.8 How Do I Clean Dirt on the Display?.......................... 179 Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 8: Safety Information
Equipment damage due to force majeure such as earthquakes, floods, volcanic eruptions, debris flows, lightning strikes, fires, wars, armed conflicts, typhoons, hurricanes, tornadoes, and other extreme weather conditions ● Operation beyond the conditions specified in this document Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 9: Personal Safety
D ANGER Before operations, remove conductive objects such as watches, bracelets, bangles, rings, and necklaces to prevent electric shocks. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 10: General Requirements
In the case of a fire, immediately leave the building or the equipment area and activate the fire alarm or call emergency services. Do not enter the affected building or equipment area under any circumstances. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 11: Personnel Requirements
Non-standard and improper operations may result in fire or electric shocks. D ANGER Prevent foreign matter from entering the equipment during operations. Otherwise, equipment damage, load power derating, power failure, or personal injury may occur. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 12 (The marks must cross the edges of the bolts.) ● Ensure that all slots are installed with boards or filler panels. Avoid hazards caused by hazardous voltages or energy on boards. Ensure that the air Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 13: Grounding Requirements
Cabling Requirements ● When selecting, installing, and routing cables, follow local safety regulations and rules. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 14 When touching the equipment and handling boards, modules with exposed circuit boards, or application-specific integrated circuits (ASICs), observe ESD protection regulations and wear ESD clothing and ESD gloves or a well- grounded ESD wrist strap. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 15: Environment Requirements
To prevent damage or fire due to high temperature, ensure that the ventilation vents or heat dissipation systems are not obstructed or covered by other objects while the equipment is running. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 16 ● After installing the equipment, remove the packing materials such as cartons, foam, plastics, and cable ties from the equipment area. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 17: Mechanical Safety
Do not perform operations such as arc welding and cutting on the equipment without evaluation by the Company. ● Do not install other devices on the top of the equipment without evaluation by the Company. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 18: Working At Heights
Avoid tilt or jolt during transportation. Working at Heights ● Any operations performed 2 meters or higher above the ground should be supervised properly. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 19: Using Ladders
Before using a ladder, check that it is intact and confirm its load bearing capacity. Do not overload it. ● Ensure that the ladder is securely positioned and held firm. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 20 Ensure that the foundation where hoisting is performed meets the load- bearing requirements. ● Before hoisting objects, ensure that hoisting tools are firmly secured onto a fixed object or wall that meets the load-bearing requirements. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 21: Charging Equipment Safety
Do not disassemble, repair, or modify the charger by yourself. If you need to repair or modify the charger, contact professionals. Improper operations may cause equipment damage, water leakage, or electric leakage. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 22 Ensure that the whole charging process is monitored. In case of extreme weather such as typhoon, rainstorm, and hailstone, terminate the charging process immediately. ● After charging is complete, start the vehicle only after the charging connector is unplugged. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 23: Routine Maintenance
● Obtain the customer's authorization before taking photos or opening the equipment doors (which may cause a power failure). ● Before powering off the equipment, ensure that the equipment is not charging any vehicle. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 24: Annual Routine Maintenance
4.4.1 Replacing a Mixed-flow Fan. Sundries No sundries or dust is inside the cabinet. Use a brush or lint-free and dust in cloth to clean the sundries the cabinet and dust. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 25 Check the software version on the power Update the software to the update management system (PMS) and ensure that the latest version. software of the power unit and charging dispenser is of the latest version. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 26 Replace the antenna. ● The antenna is properly installed on the top of the For details, see 4.2.8 charging connector management module. Replacing an Antenna. ● The cables are connected properly. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 27 ● The charging cable can be effectively protected, ball and the installation position does not change. For details, see 4.3.10 Replacing an Anti-friction ● The anti-friction ball rolls normally. Ball. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 28: Cleaning The Cabinet
Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Open the right door of the charging dispenser. Step 4 Use a soft brush to remove dust from the fins of the heat exchanger. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 29: Cleaning The Fly Nets In The Heat Exchange Compartment
Step 6 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 7 Turn on the AC circuit breaker on the charging dispenser. ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 30: Unfreezing Components
Do not use hard objects to knock or heat the components. Otherwise, the display and other components (such as the POS machine, buttons under the display, cabinet, and lights) may be damaged. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 31: Troubleshooting
● After maintenance, seal the cable inlets, close the equipment doors, and power on the equipment within 72 hours. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 32: Handling Alarms On The Antohill App
If suspected leakage is found, use a clean cloth or tissue to wipe the position. Then, run the coolant pump at 100% speed for 10 minutes and check whether leakage occurs in the position. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 34: Replacing Components
● After maintenance, seal the cable inlets, close the equipment doors, and power on the equipment within 72 hours. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 35: Component Positions
(9) RFID card reader (10) Position of the POS (11) Charging connector (12) Charging cable machine management module (13) Top light (14) Right door of the (15) Connector holder light dispenser Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 36 (22) Star ring board (23) Display backplane (24) RFID card reader board (25) Charging connector reset (26) Connector holder light (27) Water sensor (behind the sensor board coolant pump) Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 37: Replacing Electric Control Components
Step 4 Record the cable connection positions on the charging control board and remove the cables. Step 5 Remove the six M3 screws and remove the charging control board. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 38: Replacing A Main Control Board
After opening the dispenser door, turn off the AC input circuit breaker and measure the AC and DC voltages inside the dispenser. Do not maintain the dispenser with power on. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 39 Step 6 Install the new main control board and tighten the six screws. Screw size: M3; tightening torque: 0.3 N·m Step 7 Connect the cables to the new main control board according to the recorded cable connection positions. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 40: Replacing A Star Ring Board
After opening the dispenser door, turn off the AC input circuit breaker and measure the AC and DC voltages inside the dispenser. Do not maintain the dispenser with power on. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 41 Step 6 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 7 Turn on the AC circuit breaker on the charging dispenser. ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 42: Replacing A Display Backplane
To remove the flat cable from the display, open the buckle at the joint between the flat cable and the J2 port on the display backplane. Do not remove the flat cable without opening the buckle. Otherwise, the flat cable may be damaged. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 43 Step 7 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 44: Replacing A Dp Cable From The Display
AC and DC power cables have no voltage output. Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Record the DP cable connection position and remove the cable. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 45 Step 5 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 6 Turn on the AC circuit breaker on the charging dispenser. ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 46: Replacing A Connector Holder Light Board
Figure 4-9 Removing a connector holder light board Step 5 Install the new connector holder light board and tighten the four screws. Screw size: M3; tightening torque: 0.3 N·m Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 47: Replacing An Rfid Board
Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Record the cable connection positions on the RFID board and remove the cables. Step 4 Remove the four M4 nuts and remove the RFID board. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 48: Replacing An Antenna
(M6), multimeter, and key to the cabinet door are available. ● The new antenna is intact. NO TE Wear insulated gloves when touching parts (such as circuit breakers, power terminals, or power cables) that may be energized. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 49 Step 3 Record the cable connection positions on the antenna and remove the cables. Figure 4-11 Removing the antenna cables Step 4 Remove the M6 screw from the front cover of the charging cable management module. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 50 Step 6 Connect the cables to the new antenna and route the cables back into the cabinet according to the original cable routes, and place the antenna in the original position on the top of the cabinet. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 51 Step 9 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 10 Turn on the AC circuit breaker on the charging dispenser. ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 52: Replacing Buttons Under The Display
Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Record the cable connection positions on the buttons and remove the cables. Step 4 Remove the four M22 nuts and remove the buttons. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 53 Step 8 Turn on the AC circuit breaker on the charging dispenser. ----End Installation Check After the installation is complete, you are advised to perform a water test to check whether the buttons are properly installed. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 54: Replacing A Display
4.2.7 Replacing an RFID Board. Step 7 Remove the POS machine. For details, see 4.2.15 Replacing a POS Machine. Step 8 Remove the fourteen M4 nuts and remove the display. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 55 Step 12 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 13 Turn on the AC circuit breaker on the charging dispenser. ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 56: Installation Check
Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Remove the M6 screw and open the front cover of the charging cable management module. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 57 Step 6 Remove the twelve M4 screws and remove the old top light. NO TE The top light fixture has two U-shaped light tubes. When removing the top light fixture, remove the two U-shaped light tubes in sequence. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 58: Replacing Cables
After opening the dispenser door, turn off the AC input circuit breaker and measure the AC and DC voltages inside the dispenser. Do not maintain the dispenser with power on. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 59: Cable Routing
To replace a cable in a cable bundle, you only need to remove the terminals at both ends of the cable and install a new one. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 60 Step 3 Identify the cable to be replaced, follow the cable to locate the cable trough, and open the cable trough. Step 4 Replace cables. ● If a single cable needs to be replaced, refer to steps a–c. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 61: Replacing An Emergency Stop Button
DC power cables between the power unit and the charging dispenser. Ensure that all AC and DC power cables have no voltage output. Step 2 Turn off the AC circuit breaker on the charging dispenser. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 62 Step 7 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 8 Turn on the AC circuit breaker on the charging dispenser. ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 63: Replacing A Protective Cover For The Emergency Stop Button
Step 2 Install the new protective cover for the emergency stop button. Screw size: M3; tightening torque: 0.6 N·m ----End Follow-up Procedure Pack the removed component and send it to the local warehouse. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 64: Replacing A Pos Machine
AC and DC power cables have no voltage output. Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Record the cable connection positions on the POS machine and remove the cables. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 65 DT500L1-EUA1 Liquid-Cooled DC Charging Dispenser Maintenance Guide 4 Replacing Components Figure 4-24 Removing cables from the POS machine Step 4 Remove the POS machine. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 66 When installing the POS machine, strictly follow the tightening torque to prevent water leakage and device damage. Figure 4-26 Installing a POS machine Step 6 Connect the cables to the new POS machine according to the recorded cable connections. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 67: Replacing A Charging Connector Holder
● The new charge connector holder is intact. NO TE Wear insulated gloves when touching parts (such as circuit breakers, power terminals, or power cables) that may be energized. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 68 Step 9 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 10 Turn on the AC circuit breaker on the charging dispenser. ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 69: Replacing Power Components
NO TE Wear insulated gloves when touching parts (such as circuit breakers, power terminals, or power cables) that may be energized. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 70 Step 7 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 71: Replacing The Copper Sheet From The Auxiliary Psu Connector
Step 1 Turn off the upstream AC input circuit breakers on the power unit, turn off the AC circuit breaker that connects the power unit and the charging dispenser, and attach warning labels such as "DO NOT SWITCH ON." Measure the voltages of AC Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 72 Step 11 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 73: Replacing The Auxiliary Psu Connector
AC and DC power cables have no voltage output. Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Remove the auxiliary PSU. For details, see 4.3.1 Replacing an Auxiliary PSU. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 74: Replacing A Dc Meter And An Intelligent Shunt
M12), small flat-head insulated screwdriver, multimeter, and key to the cabinet door are available. ● The new DC meter and intelligent shunt are intact and the appearance of the lead layer of the DC meter is intact. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 75 Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Loosen the four M4 nuts and remove the meter from the cabinet door. Figure 4-32 Removing the protective cover from the meter Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 76 Step 6 Use a small flat-head insulated screwdriver to loosen two adjustable buckles that secure the meter base and remove the DC meter from the guide rail. Figure 4-34 Removing a DC meter Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 77 Figure 4-35 Remove the plastic protective cover from the upper part of the shunt. Step 2 Loosen the two M12 nuts and pull out the intelligent shunt leftward. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 78: Replacing A Circuit Breaker
After opening the dispenser door, turn off the AC input circuit breaker and measure the AC and DC voltages inside the dispenser. Do not maintain the dispenser with power on. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 79 Step 8 Remove the insulation tape from the cables and install the circuit breaker cables based on the recorded cable connections. Screw size: M5; tightening torque: 2 N·m Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 80: Replacing A Contactor
Step 3 Remove the transparent protective cover from the power distribution area. Step 4 Record the cable connection positions on the contactor and remove the cables. Step 5 Replace the left contactor. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 81 Install the new contactor. Screw size: M6; tightening torque: 1.5 N·m Step 6 Replace the right contactor. Remove the two M10 screws from the copper bar above the right contactor. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 82 Step 7 Reinstall the upper screws on the copper bars. Screw size: M10; tightening torque: 15 N·m Step 8 Reconnect the cables to the contactor according to the recorded cable connections. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 83: Replacing A Fuse
Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Remove the transparent protective cover from the power distribution area. Step 4 Record the cable connection on the auxiliary contact and remove the cable. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 84 AC circuit breaker that connects the power unit and the charging dispenser. Step 10 Turn on the AC circuit breaker on the charging dispenser. ----End Follow-up Procedure Pack the removed component and send it to the local warehouse. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 85: Replacing A Shunt
Step 3 Remove the transparent protective cover from the power distribution area. Step 4 Record the cable connection positions on the shunt and remove the cables. Step 5 Loosen the four M10 screws and remove the shunt. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 86: Replacing A Charging Cable Clamp
The insulated gloves, protective gloves, and insulated torque socket wrench (M6) are available. ● The new charging cable clamp is intact and of the same specifications as the old one. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 87 Figure 4-46 Removing a charging cable clamp ----End Installing a Charging Cable Clamp Step 1 Install the charging cable and tighten the three screws. Screw size: M6; tightening torque: 1.5 N·m Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 88 Figure 4-47 Installing a charging cable Step 2 Install the oval spring buckle on the charging cable clamp. Figure 4-48 Installing an oval spring buckle on the charging cable clamp ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 89: Replacing An Anti-Friction Ball
Step 1 Loosen the four M3 screws and remove the anti-friction ball from the charging cable. Figure 4-49 Removing an anti-friction ball Step 2 Loosen the four M3 screws and remove the inner fitting of the anti-friction ball. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 90 Step 1 Loosen the four M3 screws and remove the anti-friction ball from the charging cable. Figure 4-51 Opening an anti-friction ball Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 91 Otherwise, the charging cable may not be effectively protected. Figure 4-53 Installing the inner fitting of an anti-friction ball Step 4 Secure the anti-friction ball to the charging cable. Screw size: M3; tightening torque: 0.3 N·m Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 92: Replacing A Charging Cable
You have obtained the username and password to log in to the Antohill app to perform local O&M. ● The new charging cable is intact and of the same specifications as the old one. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 93 Place water-absorbent foam under the quick connector of the charging cable to absorb a small amount of dripping coolant and prevent the coolant from dripping to the components below. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 94 Remove cables. Figure 4-56 Removing cables and cooling pipes Step 8 Loosen the two M6 screws on the charging cable clamp. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 96 ● When securing the cooling pipes, you are advised to secure the inner pipe first and then the outer pipe. ● Connect the quick connector of a liquid cooling pipe to that of the charging cable until you hear a click sound. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 98 4.3.10 Replacing an Anti-friction Ball. Step 15 Press the opening of the oval spring buckle and hang the charging cable onto the charging cable management module. Figure 4-63 Hanging a charging cable Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 99: Adding Coolant
C.2 How Do I Log In to the Local Management Screen of the Power Unit? Step 5 Set the running mode. On the Home screen, tap Charging Host. The Charging Host screen is displayed. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 100 On the Device List screen, choose Charging Terminal[n] > Temperature Detection Unit. The Temperature Detection Unit screen is displayed. Set Running Mode of the dispenser to Manual. Figure 4-65 Setting the running mode Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 101 Step 9 After the coolant pump runs for 3 minutes, observe the coolant level in the coolant tank. If the coolant level does not reach the MAX line, add coolant to the MAX line. Step 10 After the replacement, set Running Mode to Auto. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 102: Replacing Cooling Components
Follow-up Procedure Pack the removed component and send it to the local warehouse. Hand over the waste coolant to a company qualified for coolant recycling. 4.4 Replacing Cooling Components Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 103: Replacing A Mixed-Flow Fan
Step 3 Remove the transparent protective cover from the charging control board. Step 4 Loosen the four nuts and remove the mixed-flow fan assembly to be replaced. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 104 Figure 4-68 Removing a mixed-flow fan assembly Step 5 Loosen the four M4 screws and remove the mixed-flow fan. Figure 4-69 Removing a mixed-flow fan Step 6 Remove the fan protective net. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 105: Replacing A Heat Exchange Fan
The insulated gloves, protective gloves, and insulated torque Phillips screwdriver (M4) are available. ● The new heat exchange fan assembly is intact and of the same specifications as the old one. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 106 Figure 4-71 Removing a heat exchange fan Step 5 Install the new heat exchange fan and tighten the four screws on the cover. Screw size: M4; tightening torque: 1.6 N·m Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 107: Replacing The Coolant
OEVC-35), 12 V diaphragm pump (outer diameter of the inlet and outlet: 10 mm; maximum lift: at least 4 m; maximum suction distance: at least 1.5 m; 12 V power supply included), Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 108 NO TE ● Secure the joints of rubber water pipes using hose clamps. ● When the coolant at the outlet of the rubber water pipe drips, the drainage is complete. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 109 Step 7 Remove the coolant pump and rubber water pipes, and reinstall the plugs at the drainage ports at the bottom of the left and right heat exchangers in sequence. Step 8 Add coolant into the tank. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 110 On the Home screen, tap Charging Host. The Charging Host screen is displayed. On the Device List screen, choose Charging Terminal[n] > Temperature Detection Unit. The Temperature Detection Unit screen is displayed. Set Running Mode of the dispenser to Manual. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 111 Figure 4-76 Setting the running mode On the Antohill app, set Duty Cycle of Water Pump 1 (%) to 80 and run the coolant pump at 80% of the full speed for 1 minute. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 112 MAX line. Step 16 After the replacement is complete, tap Confirm Coolant Change in the Antohill app to update the coolant use time and set Running Mode to Auto. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 113: Replacing A Liquid Cooling Pipe
After opening the dispenser door, turn off the AC input circuit breaker and measure the AC and DC voltages inside the dispenser. Do not maintain the dispenser with power on. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 114 The new liquid cooling pipe is intact and of the same specifications as the old one. NO TE Wear insulated gloves when touching parts (such as circuit breakers, power terminals, or power cables) that may be energized. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 115 Figure 4-79 Pipe routing inside the charging dispenser Table 4-1 Description of liquid cooling pipe routing Pipe Name Description Liquid cooling Connects the coolant tank and heat exchanger. pipe 1 Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 116: Draining Coolant
NO TE ● Secure the joints of rubber water pipes using hose clamps. ● When the coolant at the outlet of the rubber water pipe drips, the drainage is complete. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 117 Step 1 Open the right door of the charging dispenser. Step 2 Record the connection position of liquid cooling pipe 1 and remove it from the heat exchanger side. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 118 Figure 4-83 Removing a coolant tank Step 4 Remove the liquid cooling pipes from the coolant tank. Step 5 Install the new liquid cooling pipe 1 according to the recorded connection position. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 119 Replacing Liquid Cooling Pipe 2 Step 1 Open the right door of the charging dispenser. Step 2 Record the connection position of liquid cooling pipe 2 and remove it from the heat exchangers. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 120 Step 2 Press the buckle on the quick connector of the pipe and pull out the pipe. Step 3 Record the connection position of liquid cooling pipe 3 and remove the pipe. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 121 Step 5 Install the transparent protective cover for the power distribution area. Screw size: M4; tightening torque: 0.6 N·m ----End Replacing Liquid Cooling Pipe 4 Step 1 Record the connection position of liquid cooling pipe 4 and remove the pipe. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 122 Step 2 Press the buckle on the quick connector of the pipe and pull out the pipe. Step 3 Record the connection position of liquid cooling pipe 5 and remove the pipe. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 123 ● Ensure that the coolant does not contain visible impurities to avoid damage to the pipes and coolant pump. ● When adding coolant, ensure that the coolant does not exceed 5 mm above the MAX line. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 124 On the Home screen, tap Charging Host. The Charging Host screen is displayed. On the Device List screen, choose Charging Terminal[n] > Temperature Detection Unit. The Temperature Detection Unit screen is displayed. Set Running Mode of the dispenser to Manual. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 125 Figure 4-95 Setting the running mode On the Antohill app, set Duty Cycle of Water Pump 1 (%) to 80 and run the coolant pump at 80% of the full speed for 1 minute. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 126 MAX line. Step 9 After the replacement is complete, tap Confirm Coolant Change in the Antohill app to update the coolant use time and set Running Mode to Auto. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 127: Replacing A Coolant Pump
After opening the dispenser door, turn off the AC input circuit breaker and measure the AC and DC voltages inside the dispenser. Do not maintain the dispenser with power on. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 128 AC and DC power cables have no voltage output. Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Record the cable connection positions on the coolant pump and remove the cables. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 129 Figure 4-98 Removing the coolant pump cable terminals Step 4 Loosen the two M6 screws, pull the coolant pump out of the cabinet door, and place a plastic container right under the coolant pump. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 130 Figure 4-100 Removing the coolant inlet pipe from the coolant pump Step 7 Remove the coolant outlet pipe of the coolant pump, and drain coolant from the pipe to the plastic container until the coolant drips. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 131 Step 11 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 12 Turn on the AC circuit breaker on the charging dispenser. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 132 On the Home screen, tap Charging Host. The Charging Host screen is displayed. On the Device List screen, choose Charging Terminal[n] > Temperature Detection Unit. The Temperature Detection Unit screen is displayed. Set Running Mode of the dispenser to Manual. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 133 Figure 4-103 Setting the running mode On the Antohill app, set Duty Cycle of Water Pump 1 (%) to 80 and run the coolant pump at 80% of the full speed for 1 minute. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 134 Step 17 After the coolant pump runs for 3 minutes, observe the coolant level in the coolant tank. If the coolant level does not reach the MAX line, add coolant to the MAX line. Step 18 Set Running Mode to Auto. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 135: Replacing A Heater
After opening the dispenser door, turn off the AC input circuit breaker and measure the AC and DC voltages inside the dispenser. Do not maintain the dispenser with power on. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 136 Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Record the cable connection position on the heater. Step 4 Remove the cable and fastener from the heater. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 137 DT500L1-EUA1 Liquid-Cooled DC Charging Dispenser Maintenance Guide 4 Replacing Components Figure 4-106 Removing the cable and fastener from the heater Step 5 Loosen the four M4 screws and remove the heater. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 138: Replacing A Heat Exchanger
CA UTION The coolant must be the SINOPEC new energy electric vehicle thermostatic fluid (OEVC-35) and cannot be used together with other types of coolant. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 139 NO TE ● Secure the joints of rubber water pipes using hose clamps. ● When the coolant at the outlet of the rubber water pipe drips, the drainage is complete. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 140 Step 8 Keep the left door open and then open the right door of the charging dispenser. CA UTION Do not open the right door when the left door of the dispenser is closed. Otherwise, electric shocks may occur, resulting in personal injury. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 141 Figure 4-110 Removing a temperature sensor outside the cabinet Step 10 Remove the four M4 nuts, and remove the upper and lower baffle plates from the heat exchangers. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 142 NO TE The heat exchange module consists of two heat exchangers: front heat exchanger and rear heat exchanger. Replace either heat exchanger by referring to step Step 13 Step Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 143 Install the new heat exchanger to the heat exchange module, and tighten the M6 nuts to 3 N·m. Connect the U-shaped liquid cooling pipe above the front heat exchanger. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 144 Connect the U-shaped liquid cooling pipe above the rear heat exchanger. Step 15 Reinstall the heat exchanger. Nut size: M4; tightening torque: 1.6 N·m Install liquid cooling pipes for the front and rear heat exchangers. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 145 Step 19 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 20 Turn on the AC circuit breaker on the charging dispenser. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 146 On the Home screen, tap Charging Host. The Charging Host screen is displayed. On the Device List screen, choose Charging Terminal[n] > Temperature Detection Unit. The Temperature Detection Unit screen is displayed. Set Running Mode of the dispenser to Manual. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 147 Figure 4-118 Setting the running mode On the Antohill app, set Duty Cycle of Water Pump 1 (%) to 80 and run the coolant pump at 80% of the full speed for 1 minute. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 148 MAX line to prevent airlock in the coolant pump. Step 26 After the replacement is complete, tap Confirm Coolant Change in the Antohill app to update the coolant use time and set Running Mode to Auto. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 149: Replacing Sensors
After opening the dispenser door, turn off the AC input circuit breaker and measure the AC and DC voltages inside the dispenser. Do not maintain the dispenser with power on. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 150 Step 4 Remove the door status sensor. Figure 4-121 Removing a door status sensor Step 5 Press and hold down the latches on the cable terminals of the door status sensor and remove the cables. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 151 AC circuit breaker that connects the power unit and the charging dispenser. Step 9 Turn on the circuit breaker of the charging dispenser. ----End Follow-up Procedure Pack the removed component and send it to the local warehouse. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 152: Replacing A Water Sensor
Step 3 Remove one M4 screw and remove the protective cover of the water sensor from the bottom of the dispenser. Figure 4-124 Removing the protective cover of a water sensor Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 153: Replacing A Liquid Level/Temperature Sensor
The protective gloves, adjustable torque wrench, cable ties, and key to the cabinet door are available. ● The new liquid level/temperature sensor is intact and of the same specifications as the old one. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 154 Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Record the connection position and routing of the cable to the liquid level/ temperature sensor, and remove the cable. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 155 DT500L1-EUA1 Liquid-Cooled DC Charging Dispenser Maintenance Guide 4 Replacing Components Figure 4-126 Removing a cable for the liquid level/temperature sensor Step 4 Remove the old liquid level/temperature sensor. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 156: Replacing A Temperature Sensor
The insulated gloves, protective gloves, small flat-head screwdriver (M4), multimeter, and key to the cabinet door are available. ● The new temperature sensor is intact and of the same specifications as the old one. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 157 Step 3 Open the left door of the charging dispenser. Step 4 Record the cable connection position and cable route of the temperature sensor outside the cabinet, remove the cable, and pull out the temperature sensor upward. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 158 Step 1 Turn off the upstream AC input circuit breakers on the power unit, turn off the AC circuit breaker that connects the power unit and the charging dispenser, and Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 159 Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Record the cable connection positions and routing of the temperature sensor in the cabinet, and remove the cables. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 160 Step 5 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 161: Replacing A Charging Connector Reset Sensor
Step 3 Record the cable connection positions of the charging connector reset sensor, press the buckles on the cable terminals of the charging connector reset sensor, and remove the cables. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 162 DT500L1-EUA1 Liquid-Cooled DC Charging Dispenser Maintenance Guide 4 Replacing Components Figure 4-130 Removing a cable (model 1) Figure 4-131 Removing a cable (model 2) Step 4 Remove the charging connector reset sensor. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 163 Step 8 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 9 Turn on the circuit breaker of the charging dispenser. ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 164: Replacing A Charging Cable Management Module
Step 2 Turn off the AC circuit breaker on the charging dispenser. Step 3 Move the antenna from the top of the charging cable management module to the top of the dispenser. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 165 Figure 5-2 Removing a charging cable Step 5 Record the top light cable connection of the charging cable management module and remove the cable. Step 6 Remove the old charging cable management module. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 166 Figure 5-4 Moving an antenna Step 10 Press the opening of the oval spring buckle and hang the charging cable onto the charging cable management module. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 167 Step 11 Turn on the upstream AC input circuit breakers on the power unit, and then turn on the AC circuit breaker that connects the power unit and the charging dispenser. Step 12 Turn on the AC circuit breaker on the charging dispenser. ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 168: A Bom Numbers Of Spare Parts
02233XXJ Charging cable 32030335-005 Mixed-flow fan 21165538 Liquid cooling pipe 32030434 Heat exchange fan 32060005 Coolant pump 33010444-003 Water sensor 33010611 Liquid level/temperature sensor 33010323-002 Temperature sensor Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 169 Top light 0302062080 Star ring board 97055790 Charging cable management module 21162586 Heater 04099569 Cable 21164624 Heat exchanger 18010098 Shunt 97055774 Anti-friction ball/Charging cable clamp 97055792 Charging connector holder Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 170: Maintenance Tools
Insulated torque Insulated torque Small insulated Adjustable torque Phillips socket wrench flat-head wrench screwdriver (M3– screwdriver (maximum (including (M3/M4) opening: 65 mm extended sockets) or above) (M4– M6/M8/M10/ M12) Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 171 Sealing putty DO NOT SWITCH Spring clamp Plastic container ON sign pliers (3 L) Water pipe Plastic adapter Infrared imager (M10x1 thread to 10 mm pagoda connector) Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 172: C Faqs
Step 4 Add coolant to the MAX line on the tank. NO TICE Ensure that the coolant does not contain visible impurities to avoid damage to the pipes and coolant pump. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 173: How Do I Log In To The Local Management Screen Of The Power Unit
Device Debug. Figure C-1 Device commissioning entry with accounts not logged in to If you have logged in with your Huawei ID, choose Me > Device Commissioning. Issue 01 (2024-08-06)
Page 174 Figure C-3 Scan to connect to WiFi Step 3 Scan the O&M QR code of the power unit and tap Next. The mobile phone automatically connects to the power unit WiFi network. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 175 Step 4 After the Antohill app connects to the power unit WiFi, access the login screen of the power unit, enter the username and password for the power unit, and tap Log Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 176: What Can I Do If I Cannot Connect To The Wifi By Scanning The Qr Code
● Place the mobile phone close to the power unit. Ensure that the distance between them is within 10 m and there is no obstacle between them. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 177: How Do I Reset The Wifi Password Or Login Password For The Power Unit
Both the WiFi password and login password for the power unit can be changed in the app. If you forgot your password, perform the following steps to restore the default settings: Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 178 Status WiFi password Original After the reset, you can scan the QR code to connect your phone to the power unit WiFi. Non-original Changeme Login password Original Changeme Non-original Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 179: Device Commissioning After Adding A Charging Dispenser
● The power unit WiFi can be connected to and communicate with only one mobile phone at a time. ● Your mobile phone may not be able to access the Internet when it is connected to the power unit WiFi. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 180 Figure C-10 Position of the O&M QR code Step 4 On the device login screen, enter the username and password for the power unit, and tap Log In to access the site deployment screen. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 181 30 seconds and enter the correct password. Step 5 Choose Maintenance > Quick Settings to access the wizard-based site deployment screen. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 182 DT500L1-EUA1 Liquid-Cooled DC Charging Dispenser Maintenance Guide C FAQs Step 6 Set parameters, perform system soft-start, identify devices, and perform system self-check as prompted. Figure C-11 Setting parameters Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 183 DT500L1-EUA1 Liquid-Cooled DC Charging Dispenser Maintenance Guide C FAQs Figure C-12 System soft-start Figure C-13 Identifying devices Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 184 DT500L1-EUA1 Liquid-Cooled DC Charging Dispenser Maintenance Guide C FAQs Figure C-14 System self-check Figure C-15 Setting completed ----End Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 185: How Do I Repair Paint Damage
Step 6 Wait for 5 minutes and check whether the painted part is flush. If not, repaint the part. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 186 Step 1 Dip the lint-free cloth in a small amount of alcohol. Step 2 Use the lint-free cloth to slowly clean the surface of the display following the arrow directions in Figure C-16. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.
Page 187 Step 3 After the cleaning is complete, check whether there are residual alcohol or stains on the surface of the display. If yes, repeat step Step 2 until the display surface is clean. ----End Follow-up Procedure Store the remaining alcohol properly. Issue 01 (2024-08-06) Copyright © Huawei Digital Power Technologies Co., Ltd.

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