DELTA ELECTRONICS, INC. Service engineers and end users may not divulge the information contained herein or use this manual for purpose other than those strictly connected with correct use of the product.
This user manual provides important instructions for Delta grid-tie transformerless solar inverter. The product is designed, tested, verified, and certified according to international safety requirements, certifications, and standards but precautions must be observed when installing and operating the product.
Safety 1.2.2 Symbols This section describes the definition of the symbols in this manual. In order to prevent both personal injury and property damage, and to ensure long-term operation of the product, please read this section carefully and follow all the safety instructions while you use the product. DANGER! - This warning indicates an immediate hazard which will lead to death or serious injury.
Page 11
Safety INFORMATION - An exclamation mark enclosed in a double circle indicates additional important information is contained in the following section and the user should follow the instructions to prevent any hazards. DANGER : ELECTRICAL HAZARD!! - This warning indicates an immediate electrical hazard that unheeded can lead to death or serious injury.
The user manual is valid for the following device types: • M125HV_113 • DC Wiring Box This user manual must be followed during installation, operation, and maintenance. DELTA reserves the right to make modifications to the content and technical data in this user manual without prior notice.
④ ⑤ ⑥ Figure 2-1: M125HV_113 components Table 2-1: M125HV_113 packing list M125HV_113 Object Description Delta Solar Inverter Solar inverter Wall mounting bracket Mounting Bracket (Material: Aluminum/Thickness: 3mm) Important instructions for solar inverter. Safety instructions should be followed User Manual...
Page 14
Introduction The components of DC Wiring Box is shown as Figure 2-2. ① ② ③ ④ ⑤ Figure 2-2: DC wiring box components Table 2-2: DC wiring box packing list DC Wiring Box for M125HV_113 Object Description DC Wiring Box For DC cable wiring The Instruction to provide the information of safety, Quick Installation Guide...
Page 15
Introduction SUB_1G Antenna (optional) Air Outlets (filter) Rating Label Foot Air Inlets(filter) / Smart Fans 3 " gland for AC Wiring 28.9 mm gland DC Switch RS-485 for DC Wiring communications port, 1.1" Trade Size Opening Tools can be placed in the foot. Figure 2-3: Overview...
Page 16
Introduction Figure 2-4 shows the rating label of M125HV_113, and Table 2-3, defines the symbol markings on this label. Manufacturing location: No. 1688 Jiangxing East Road, Wujiang Economic Development Zone Suzhou City, 215200 Jiangsu Province, P.R. China Solar Inverter ( 太陽能變流器...
Page 18
Introduction ⑬ ⑦ ⑮ ⑪ ② ⑩ ⑥ ⑫ ⑭ ⑤ ⑤ ① ⑯ ⑧ ③ ④ ⑨ Figure 2-6: Layout Table 2-4: Layout description Component Component NO. Component 3” cable opening for AC Wiring N3U_SB1 Internal fan 2 AC terminal Communication port Din rail for AC SPD (optional)
Installation 3 Installation CAUTION ! - In some locations, mounting the inverter in direct sunlight may cause the inverter to enter a thermal derating mode. To eliminate this concern, a shade structure over the inverter chassis may be necessary. WARNING ! - Do not install the unit near or on flammable surfaces.
Installation 3.1 Unboxing & Review Unpacking the M125HV_113, please follow the order of Figure 3-1. It could be transported by 2 people (Figure 3-2) or crane (Figure 3-3). Need more than two people to stand up. Figure 3-1: The step to unpacking the inverter...
Page 21
Installation Prohibit to force with fan shutter. Figure 3-2: Handle position for handling Please lock screw (0.5N•m) plugs or keep steel rings on the case after installation to avoid water inflow. The required bolt size is M12. Hoisting Hook Figure 3-3: Attaching the Hoisting hooks...
CAUTION ! Protection cover To avoid malfunction of inverter caused by extreme weather (ex: snow, hail…etc) or non-proper installation/ maintenance, an additional protection cover is strongly recommended to be installed by DELTA. For more details, please contact local service team.
Installation 3.2.1 Vertical Wall Mount Refer to Figures 3-6 through Figures 3-10. 1. Ensure the surface to which the unit is to be mounted is sufficiently strong enough to carry the weight. 2. Orient the wall bracket horizontally (perpendicular to the floor), with the large plate at the bottom, and mark required mounting hole locations per Figure 3-6.
Page 24
Installation 612 mm 606 mm 10.5 19.2 mm 102 mm 306 mm 510 mm 950 mm Figure 3-6: Mounting bracket dimensions Wall > 94cm > 40cm > 65cm > 129cm > 61cm Inverter #1 Inverter #2 > 190cm > 95cm >...
Page 25
Installation >380mm >500mm >500mm >1000mm height * height * * For wall mount installation, make sure it is high enough to have sufficient space for wiring. Back to Back When M125HV mounted back to back, clapboards must be installed on both sides. >...
Page 26
Installation After installing the reinforce brackets on the foots (Figure 3-9), secure the reinforce brackets to the wall with two screws (M10) per Figure 3-10. * Screw torque required for assembling: 15 N•m Figure 3-9: Install the unit on the foots Figure 3-10: To secure inverter reinforce brackets to wall-mounting bracket...
Page 27
Installation Figure 3-11: Permitted mounting positions Figure 3-12: Prohibited mounting positions O : Permitted / X : Prohibited...
Installation 3.3 DC wiring box installation After mounting M125HV, please open the front cover of the DC wiring box before install the wiring box on the inverter. (Figure 3-13) * Screw torque required for assembling: 4.4 N•m Figure 3-13: Open the front cover of the DC wiring box Pass through the DC cable from M125HV to DC wiring box, Use 4 M5 hex nut to fix the DC wiring box on the M125HV inverter.
Page 29
Installation Use M8 hex nut to tighten the cable on terminal. * M8 Nut torque: 14.7 N•m Figure 3-15: Internal DC cabling...
Installation 3.4 Door In order to guarantee proper long-term operation of the inverter, procedures in Section 5.1 must be followed. For the first time installation, only need to open the AC side (left) door for wiring. * Screw torque: 4.4 N•m Figure 3-16: First installation of M125HV_113 INFORMATION - Use Hexagon Driver or other proper tool to untighten door screws.
Installation 3.5 Electrical Installation for AC Wiring DANGER : ELECTRICAL HAZARD!! - To avoid shock hazard during cabling, insure any live grid connections are removed from the inverter. DANGER! - It is forbidden to open both doors at the same time. WARNING ! - Code compliance is the installer's responsibility.
Installation 3.5.1 AC Grid Types and Connections ATTENTION The default AC Grid connection is 3Ø-3W. It can also connect 3Ø-4W without Neutral (N). The inverter will operate from the following grid connections without need of an external transformer: TNC system TNC-S system 347/600V 347/600V...
Installation Conductor cross-section: Cu: 50 ~ 185 mm Al: 95 ~ 185 mm outer jacket Figure 3-17: Size of AC conductors Φ10.5 mm <31 mm AC Terminal (tin-plated) PE Connection (Nickel-plated) Conductor Compatible Lug Conductor Compatible Lug Cu(Tin-Plated) Cu(Tin-Plated) Cu(Nickel-Plated) Pure Cu Pure Cu Aluminum (Tin-Plated)*...
Installation 3.5.5 AC Wiring Refer to Figure 3-17 in Section 3.5 for the procedure to prepare AC conductors for connection to the AC terminals. Ensure the AC conductors used are sized to the correct ampacity per NEC or other local code. Refer to Figure 3-17. AC terminal After inserting conductor, torque...
Page 35
Installation Torque 0.8 N • to fix the screws Figure 3-20 : AC gland assembling CAUTION ! The cable gland is suitable for multi-core cable, if wiring is using single-core cable with 3” flexible metal conduit, please follow below suggestions to avoid water intrusion: a.
Installation 3.6 Electrical Installation for DC Wiring DANGER : ELECTRICAL HAZARD!! - PV array converts sunlight into electric power with high DC voltage and high DC current which can cause dangerous electrical shock hazard! - Use an opaque material to cover the PV array before wiring or cabling. - Ensure the correct polarities are connected when DC cabling is applied.
Installation 3.6.1 DC Wiring Preparation Below is the procedure for preparing the DC conductors for connection to the DC terminals: • It is important to choose the proper size for DC cable. Refer to Figure 3-21. • The cross-sectional area for each DC conductor is 50~300 mm for Cu.
Installation 3.6.2 DC Side –Prewire Set-Up Prior to installing conductors on terminal complete the following procedure to make terminals ready for connections. For each of the DC terminals (PV+ / PV-): Tighten/Lose nuts with 19mm socket. If an electric socket is utilized insure the torque setting is low enough to NOT OVER-TORQUE the screw.
Installation 3.7 Equipment Grounding To ground the inverter, please crimp the grounding wire to the ring terminal lug and fix it on the grounding point shown as figure 3-24. mounting torque: M6/ 7 N•m M10/ 25 N•m * Nut torque: M10/ 25 N•m * Nut torque: M6/ 7 N•m M10/ 25 N•m Figure 3-24: Mount the equipment grounding...
ATTENTION - Always keep nut and screws properly tightened on the case. Water leakage may cause serious damage. Contact DELTA service when lack for nut and screws. - Store the nut for spare usage. Antenna location Save the nut after antenna installed.
Page 41
Installation >20cm There must be no obstacles within 20 cm around the antenna. Keep antenna pointing upright. Figure 3-26: Attentions of installing antenna...
Page 42
Installation Screw locations Put on the bracket from the top of Tighten the 3 M4 screws to antenna antenna until matching screw holes. bracket with 0.98 N • m torque. Figure 3-27: Attentions of installing antenna bracket ATTENTION - Please refer Data Collector manual for connection of Data Collector. https://mydeltasolar.deltaww.com/?p=product_manual...
Installation 3.9 Communication Module Connections The communication module of M125HV_113 is shown in Figure 3-28. It provides VCC, RS-485, dry contact, EPO, and Digital Input terminals for use in various applications. Details for each are presented below. There's a 12VDC source between VCC & GND for use with external device. V1 *1 &...
Installation 3.9.1 Accessing the Communication Module The communication module consists of an assembly with a PCB and a plastic carrier. It is located in a slot through the bottom of the chassis. It is accessed from the bottom exterior of the chassis. The carrier is secured to the chassis by two self-retaining screws.
Installation 3.9.2 RS-485 Connection The pin definition for the RS-485 terminal block is shown in Table 3-1. - Pins 1 and 2 provide a 12VDC bus for use with accessories. (If use of 12VDC bus is necessary, place switch 1 in ON position.) - Pins 3 and 5 are both connected to the DATA+ input.
Page 46
Installation Terminal Resistor (Last inverter in chain must have Switch 2 in ON position.) RS485/USB RS485/RS232 Figure 3-31: Multiinverter connection illustration Table 3-2: Vcc and Bus Termination switch settings Switch 1 Terminal Resistor ON Terminal Resistor OFF...
Installation 3.9.3 EPO Function & Digital Input The communication Module has an emergency power off function (EPO). Users can customize EPO function in APP or Delta Solar System (DSS). V1 K0 K1 K2 K3 K4 K5 K6 Figure 3-32: EPO function terminal block Once enabled, the EPO function can be used to turn off the inverter via a NO relay contact connected across terminal [V1 &...
Installation 3.9.4 Dry Contact Connection M125HV_113 provides a dry control contact pair that may be used to control external devices based on the status of operation of the inverter. The terminal block for this function is shown in Figure 3-33. The terminals marked in the figure identify the dry contact connection.
Commissioning 4 Commissioning CAUTION : HOT SURFACES, DO NOT TOUCH! - Use care to avoid hot surfaces when operating the product! - Do not perform any task until the unit cools down or appropriate personal protection gear is worn. 4.1 Display Operation Introduction M125HV_113 with 3 LEDs allow visual display of the inverter’s data and status as shown in Figure 4-1.
Commissioning 4.2 Auto ID Commission The Auto ID function can set all inverter IDs by DSS through (Delta Solar System) RS-485 or set by MyDeltaSolar APP through Wi-Fi, please refer to chapter 4.3 for operation manual. 4.2.1 Commission Setting (DSS) ①...
Commissioning 4.2.3 Set ID ① The serial number of the successfully scanned device will be displayed, the default ID can be changed. ② After ID setting is completed, click “Set ID”. ② ① Figure 4-4: Steps of ID setting...
Commissioning 4.3 Delta Function Setting Delta offers two setting tools: DSS (Delta Solar System Software) and APP (MyDeltaSolar) Function Active power control Q(U) control (volt-var control) P-F control (watt-frequecy control) Q by night(Q setting 24/7) P(U) control (volt-watt control) Anti-PID Fixed cosφ...
Maintenance 5 Maintenance Please check the unit regularly. If there are any impaired or loose parts, please contact your solar installer. Ensure that there are no fallen objects in the path of the heat outlet. WARNING ! - Please make sure AC and DC power are both off prior to any maintenance procedures to avoid risk of electric shock.
Page 57
Maintenance M125HV_113 * Show the AC side door. AC side (left) LED side (right) ATTENTION - After opening the door, please make sure the door is fixed by hexagon driver to avoid strong wind breaking it. Figure 5-1: Open the door...
Maintenance DC combiner box Figure 5-2: Open the cover of DC combiner box 5.1.3 Close the Door/Cover 1. Make sure that the terminals or viewable live parts are clean without sundries, dust even liquid. 2. All protection covers are installed well. 3.
Maintenance 5.2 Replacement of Surge Protection Devices (SPD) M125HV_113 have the surge protection device (SPD) at both AC and DC side as shown in Figure 5-4. Table 5-1 summarizes the specifications of AC and DC SPD. Figure 5-4: AC and DC SPD modules Table 5-1: SPD Specifications Description Value...
Page 60
Maintenance • Accessing the door 1. Follow Section 5.1.1 to disconnect M125HV_113 from Voltage Sources. 2. Follow Section 5.1.2 to open M125HV_113 door. • Changing the SPD modules - use the following procedure: The AC and DC SPD units are located as shown in Figure 5-5. •...
Page 61
Maintenance AC side door LED side door Confirm the replacement position, only the left door can be opened on the AC side (left) door, either the DC side (right) door can only be opened on the right side. It is forbidden to open Both doors at the same time.
Page 62
Maintenance AC SPDs * A/G: Screw torque 0.8N•m Figure 5-6: Remove wirings as connectors of AC SPD DC SPDs * A/G: Screw torque 0.8N•m Figure 5-7: Remove wirings as connectors of DC SPD...
Maintenance 5.3 Replace Internal String Fuse The combiner box utilize standard 60mm x 196mm PV fuses and associated at both positive and negative side. Because of the TL design, both strings are floating and not connected to ground. Standard fuse of M125HV_113 is 250A, the specifications for the required fuse and fuse brands used in the factory are listed below.
Page 64
Maintenance M125HV_113 has fuses for both and negative side inside the DC combiner box, please follow Figure 5-8 to replace the fuse. * please avoid drop the fuse to the floor, if it drop down please change the new fuse for the combiner box.
Maintenance 5.4 Smart Fans Replacement and Filter Cleaning M125HV_113 is provisioned with processor-controlled "smart fans" for cooling of the electronics. This section provides procedures for cleaning filters associated with these fans, and instructions for field replacement of the fans. The fans utilized have high reliability ratings and coupled with use of processor controls provide a "smart"...
Periodic fan and filter cleaning is required to insure long life and reliability. - The time period between cleanings depends on the quality of the environment. - Under normal duty use, Delta recommends smart fans and filters be cleaned every 4 months - For very dusty locations, it may be necessary to clean the fans and filters quarterly or monthly.
Maintenance 5.4.2 Power Module (PM) Fan Tray The inverter electronics are convection cooled. The primary equipment used for this function consists of a fan tray located in a plenum within the inverter. The PM electronics are isolated, and heat is transferred to the plenum airflow via a large heatsink.
Page 68
Maintenance * Screw torque required for assembling: 0.8N•m ① ② * Screw torque required for assembling: 0.8N•m ③ snap-fit ④ * Screw torque required for assembling: 0.6N•m Figure 5-11: Disassembling fan tray from PM chassis...
Maintenance 5.4.3 Internal Fan 1 When used, the LED side (right) compartment is provisioned with a single fan module. (See Figure 5-12, 5-13, 5-14, 5-15) If the warrning "Fan Fail- Internal F00" show on the DSS / APP, please follow the procedure below to remove Internal Fan 1.
Page 70
Maintenance * Screw torque required for assembling: 0.8 N•m Figure 5-14: Take off the internal fan 1 * Screw torque required for assembling: 0.6 N•m Figure 5-15: Replace with a new fan...
Maintenance 5.4.4 Internal Fan 2 When used, the AC side compartment is provisioned with a single fan module. (See Figure 5-16, 5-17, 5-18, 5-19) If the warrning "Fan Fail- Internal F01" show on the DSS / APP, please follow the procedure below to remove Internal Fan 2. (1) Remove the shield cover.
Page 72
Maintenance Figure 5-18: Take off the internal Fan 2 * Screw torque required for assembling: 0.6N•m Figure 5-19: Replace with a new fan...
Maintenance 5.5 De-Commissioning When necessary to remove the inverter from active operation for maintenance or replacement, follow the instructions below. DANGER : ELECTRICAL HAZARD!! - Ensure DC and AC cables are always de-energized during De-commissioning to avoid Shock Hazard! CAUTION : HOT SURFACES - The surface of the inverter may be hot to cause injury, ensure the temperature is in the proper range before De-commissioning.
Error Message and Trouble Shooting 6 Error Message and Trouble Shooting While Delta Electronics endeavors to build electronic products to very high standards of reliability, there will arise instances where the inverter may not operate properly. When such a condition is encountered, please follow the instructions in the Troubleshooting Guide (Tables 6-1, 6-2, and 6-3) to attempt to clear the fault.
Error Message and Trouble Shooting 6.2 Fault Codes (Inverter Fault) Table 6-2A: Fault Codes (inverter fault) & Messages Message Description Action Injection Contact customer service for Utility waveform is abnormal technical support (F01, F02, F03, F04) Temperature One of inner ambient NTC and Check the installation ambient and High inverter module NTCs is over...
Page 76
Error Message and Trouble Shooting Table 6-2B: Fault Codes (inverter fault) & Messages Message Description Action 1. Power line is disconnected Iac Unbalance inside the inverter Check the connection in AC terminal 2. Current feedback circuit is (F26) defective Contact customer service for RCMU Fault RCMU circuit is disconnected (F27)
Technical Information 7 Technical Information 7.1 Technical of M125HV_113 Table 7-1A: Specifications Model M125HV_113 DC Input Occasionally Max. voltage 1600V * 860 – 1500V Operating voltage range 860 – 1350V * MPP voltage range Rated voltage 1050V MPP tracker Max. operating current 150A Max.
Page 79
Technical Information Table 7-1B: Specifications Model M125HV_113 Efficiency Peak efficiency >99 % 98.7 % Euro efficiency Information RS-485 (Delta / Sunspec) Communication SUB_1G (optional) (Grid, Alarm, COMM.) Indicator Regulation Enedis-PRO-RES_64E GB/T 19964: LVRT IEC 62109-1/-2 UTE C 15-712-1 IEC 61727...
Page 80
Technical Information If the input voltage is higher than 1350V, the inverter may derate the output power. The relationship between the input voltage and the output power derating is shown in Figure 7-1. Input Voltage Derating of M125HV_113 Output voltage at 600Vac P/Pn(%) Pn=125kW 100%...
Page 81
Technical Information Power Derating Curve with Ambient Temprature Output voltage at 600Vac PF=1 P/Pn(%) Pn=125kW 110% 100% 90 % 80 % 70 % 860V 60 % 1050V 1250V 50 % 1350V 40 % 30 % 20 % Ambient Temperature (°C) Figure 7-2: Power Derating Curve with Ambient Temprature (PF=1)
Page 82
Technical Information Power Derating Curve with Ambient Temprature Output voltage at 600Vac PF=0.9 P/Pn(%) Pn=125kW 110% 100% 90 % 80 % 70 % 860V 60 % 1050V 1250V 50 % 1350V 40 % 30 % 20 % Ambient Temperature (°C) Figure 7-3: Power Derating Curve with Ambient Temprature (PF=0.9)
Page 83
Technical Information Apparent Power Derating Curve with Ambient Temprature Output voltage at 600Vac PF=1 S/Sn(%) Sn=125kVA 110% 100% 90 % 80 % 70 % 860V 60 % 1050V 1250V 50 % 1350V 40 % 30 % 20 % Ambient Temperature (°C) Figure 7-4: Apparent Power Derating Curve with Ambient Temprature (PF=1)
Page 84
Technical Information Apparent Power Derating Curve with Ambient Temprature Output voltage at 600Vac PF=0.9 S/Sn(%) Sn=125kVA 112% 110% 100% 90 % 80 % 70 % 860V 60 % 1050V 1250V 50 % 1350V 40 % 30 % 20 % Ambient Temperature (°C) Figure 7-5: Apparent Power Derating Curve with Ambient Temprature (PF=0.9)
Page 85
Technical Information Power Derating Curve with Input Voltage Output voltage at 600Vac PF=1 P/Pn(%) Pn=125kW 110% 100% 90 % 80 % 70 % AMB_50°C 60 % AMB_40°C AMB_<25°C 50 % 40 % 30 % 20 % 10 % 1250 1350 1450 1550 1150...
Page 86
Technical Information Power Derating Curve with Input Voltage Output voltage at 600Vac PF=0.9 P/Pn(%) Pn=125kW 110% 100% 90 % 80 % 70 % AMB_50°C 60 % AMB_40°C AMB_<25°C 50 % 40 % 30 % 20 % 10 % 1250 1350 1450 1550 1150...
Page 87
Technical Information Efficiency of M125HV_113 Output voltage at 600Vac Efficiency(%) Pn=125kW 100% 860V 1050V 1250V 1350V 100% Output Power (%) Figure 7-8: Efficiency Curve...
Appendix A: Installation of DIN Rail SPD (Optional) Appendix A: Installation of DIN Rail SPD (Optional) M125HV_113 support the spare parts of DC/AC DIN rail SPDs with typeI and typeII. - Exchange DC SPD, there are some spare parts for exchange SPD, such as PE wiring, track and nuts are shown in Figure A-2.
Page 89
Appendix A: Installation of DIN Rail SPD (Optional) DC DIN Rall SPD 120mm MAX. 35mm DIN Rail Mountable Figure A-1: DC DIN Rall SPD Select spare parts Figure A-2: DC SPD The step of exchange DIN rail SPD: 1. Open the shield cover. (Figure A-3) 2.
Page 90
Appendix A: Installation of DIN Rail SPD (Optional) Figure A-3: Open the DC SPD shield cover DC SPDs * A/G: Screw torque 0.8N • m Figure A-4: Disassemble and remove two screws to remove DC SPD PCB...
Page 91
Appendix A: Installation of DIN Rail SPD (Optional) Nut torque 4.4N • m Nut torque 4.4N • m Nut torque 2N • m Nut torque 2N • m Figure A-5: Lock track and Install...
Page 92
Appendix A: Installation of DIN Rail SPD (Optional) AC DIN Rall SPD 55mm MAX. 108mm MAX. Figure A-6: AC DIN Rall SPD Select spare parts Figure A-7: AC SPD The step of exchange DIN rail SPD: 1. Open the shield cover. 2.
Page 93
Appendix A: Installation of DIN Rail SPD (Optional) Remode signalling contactor Figure A-8: SPD wiring of wires with spare parts refer DIN rail manual * Nut torque required for assembling: 2 N • m Figure A-9: Install the SPD and shield cover to the track...
Page 94
Appendix A: Installation of DIN Rail SPD (Optional) Figure A-10: Connect the spare parts of wring connectors AC SPDs Move the PCB SPD fignal to the Din rain SPD signal connector on the sheet metal. Figure A-11: Remove wring connectors...
安裝 Conductor cross-section: Cu: 50 ~ 185 mm Al: 95 ~ 185 mm outer jacket 圖3-17: 交流線材剝線 Φ10.5 mm <31 mm AC Terminal (tin-plated) PE Connection (Nickel-plated) Conductor Compatible Lug Conductor Compatible Lug Cu(Tin-Plated) Cu(Tin-Plated) Cu(Nickel-Plated) Pure Cu Pure Cu Aluminum (Tin-Plated)* Stainless steel Bi-metal*...
安裝 Terminal Resistor (Last inverter in chain must have Switch 2 in ON position.) RS485/USB RS485/RS232 圖3-31: 多台併接通訊示意圖 表 3-2: 終端電阻設定說明 Switch 1 Terminal Resistor ON Terminal Resistor OFF...
試運行 4.2 自動ID設定 自動ID設定功能可以一次設定所有變流器ID,連接RS-485透過的裝置可以透過 DSS (Delta Solar System)設定,連接Wi-Fi的裝置請透過MyDeltaSolar APP進行 自動ID設定。 4.2.1 DSS連接 ① 點選 “Commission Tool“ ② 點擊 “RS485“ ③ 選取通訊端 (程式自動偵測) ④ 點擊 ② ① ④ ③ 圖4-2: DSS連接...
試運行 4.3 Delta功能設定 Delta 提供兩種機器設定方式 : DSS (Delta Solar System Software) 與 APP(MyDeltasSolar) 功能列表 Active power control Q(U) control (volt-var control) P-F control (watt-frequecy control) Q by night (Q setting 24/7) P(U) control (volt-watt control) Anti-PID Fixed cosφ Dry contact...
維護 5.2 更換雷擊保護裝置 (SPD) M125HV_113 配置交流與直流側的雷擊保護裝置(SPD),如圖5-4所示。 表5-1為交流與直流側雷擊保護裝置的規格。 圖5-4: 交流與直流側的雷擊保護裝置 表5-1: 雷擊保護裝置規格 Description Value AC Module 1190VRMS Working voltage: DC Module 1800VDC Working Current (8/20us) 10kA Rated Current (IMAX – 8/20us) 20kA Operating Ambient Temperature Range -40°C to 85°C Sichuan Zhongguang Lightning Manufacturer: Protection Technologies Co., Ltd 雷擊保護裝置是為了保護較為敏感的電路元件,避免當其受到雷擊或電壓驟變時...
維護 AC side door LED side door Confirm the replacement position, only the left door can be opened on the AC side (left) door, either the DC side (right) door can only be opened on the right side. It is forbidden to open Both doors at the same time.
維護 5.3 更換保險絲 M125HV_113使用標準的 60mm x 196mm PV保險絲採用TL設計且組串不接地, 輸入配置正負極保險絲。 表5-2 列出的保險絲品牌與規格均為 60mm x 196mm PV保險絲。 M125HV_113標配為250A保險絲。 表5-2 : 保險絲規格 Rated current 250 A IEC listed IEC 60269-6 Rated voltage 1500 V Typical Mfr Littelfuse Operating Class Solar PV Mfr P/N SPNH250.X2XLDE Fuse Type 60 mm x 196 mm...
錯誤告警及排除問題 表6-2B: 錯誤訊息 (變流器故障) 資訊顯示 可能原因 故障排除 Iac Unbalance 1. 變流器內部的電源線未連接 檢查AC介面連接 (F26) 2. 電流回授電路無效 RCMU Fault RCMU連接中斷 請聯繫客服人員,尋求技術支援 (F27) AC RLY Short AC Relay 短路 請確認端子座配線與市電端配線是否正確 (F28) AC RLY Open AC Relay 開路 請聯繫客服人員,尋求技術支援 (F29) Bus Unbalance 變流器內部直流電壓不平衡 重新啟斷DC開關 (F30) Bus Voltage High 太陽能板Voc超過1500Vdc...
Need help?
Do you have a question about the M125HV 113 and is the answer not in the manual?
Questions and answers