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_111 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.
⑦ ⑧ ⑨ ⑩ ⑪ Figure 2-1: Components Table 2-1: Packing list Object Description Delta Solar Inverter 1 pc Solar inverter Wall mounting bracket 1 pc Mounting Bracket (Material: Aluminum/Thickness: 3mm) Important instructions for solar inverter. User Manual 1 pc...
Page 14
Introduction Reserved* Air Outlets (filter) DC Switch 1 DC Switch 2 Air Inlets(filter) / Foot Smart Fans 3" gland Rating Label for AC Wiring H4 DC connector 20 pairs RS-485 * Always keep nut and screws properly tightened communications port, on the case.
Page 15
Introduction Figure 2-3 shows the rating label of M125HV_111, and Table 2-2, defines the symbol markings on this label. Figure 2-3: Rating label Table 2-2: Rating label explanation Symbol Definition Danger to life through electric shock Potentially fatal voltage is applied to the inverter during operation. This voltage persists even 135 seconds after disconnection of the power supply.
Page 17
Introduction ⑬ ⑦ ⑪ ⑩ ④ ② ⑥ ⑫ ⑭ ⑪ ⑨ ⑤ ⑤ ⑪ ③ ① ⑧ Figure 2-5: Layout Table 2-3: Layout description Component Component Component 3” cable opening for AC Power connect of Din Rail SPD Type II AC SPD AC terminal Internal fan 1 _SB1...
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. CAUTION ! - The product supports wireless communication.
Installation 3.1 Unboxing & Review Unpacking the M125HV_111, 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 20
Installation Prohibit to force with fan shutter. Prohibit to force with DC switch. 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.
Page 22
Installation 334 mm 900 mm 52 mm Figure 3-4: Inverter dimensions...
Page 23
Installation 612 mm 606 mm 10.5 19.2 mm 102 mm 306 mm 510 mm 950 mm 10.5 Figure 3-5: Mounting bracket dimensions Wall > 400mm > 940mm > 650mm > 1290mm > 610mm Inverter #1 Inverter #2 > 1900mm > 950mm >...
Page 24
Installation >380mm >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 mounted back to back, clapboards must be installed on both sides. >...
Page 25
Installation After installing the reinforce brackets on the foots (Figure 3-8), secure the reinforce brackets to the wall with two screws per Figure 3-9. * Screw torque required for assembling: 15 N•m Figure 3-8: Install the unit on the foots Figure 3-9: To secure inverter reinforce brackets to wall-mounting bracket...
Page 26
Installation Figure 3-10: Permitted mounting positions Figure 3-11: Prohibited mounting positions O : Permitted / X : Prohibited...
Installation 3.2.2 Ground Mount (Optional) Grounded Bracket kit is an optional part, please contact the customer service center for the detail. 1. Ensure the grounded base to which the unit is to be mounted is sufficiently strong enough to carry the weight. 2.
Page 28
Installation Φ10.5 mm 26.7cm 95 cm 78 cm height * >9.2 cm * For ground mount installation, make sure the cement base is high enough to have sufficient space for wiring. (ex: the height of cement base will require 30cm for using 70mm XLPE cable) Figure 3-13: To secure inverter grounded brackets to ground-mounting base...
Installation 3.3 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 3-14: First installation of M125HV_111 INFORMATION - Use Hexagon Driver (Table2-1, Item5) or other proper tool to untighten door screws.
Installation 3.4 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.
*1 When the neutral of the utility side is grounded, additional device (e.g., a recloser) needs to be installed to detect an open phase on the utility side." *2 The winding configuration of the transformer on the inverter side must be wye for all Delta 3-phase string inverters to detect an open phase on utility side.
Installation 3.4.2 Required Protective Devices It is recommended to install an upstream AC line disconnection and over current protection device. Please refer to your local rules for the required product. Table 3-1: Recommended AC circuit breaker rating Rated voltage min. 600 V Rated current min.
Installation 3.4.4 AC Side –Prewire Set-Up Prior to installing conductors on terminal complete the following procedure to make terminals ready for connections. For each of the AC terminals (L1, L2, L3, PE): Tighten/Lose nuts with 17mm socket. If an electric socket is utilized insure the torque setting is low enough to NOT OVER-TORQUE the screw.
Installation 3.4.5 AC Wiring Refer to Figure 3-15 in Section 3.4 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 3-15. AC terminal After inserting conductor, torque...
Page 35
Installation clamping seal claw plug Table 3-2: Specification of M125HV_111 AC gland Cable diameter range Torque Dimension of P 72 - 77 mm 6.5 - 4.5 mm N • m 6 - 3 mm 65 - 72 mm N • m 5.5 - 2 mm 57 - 65 mm N •...
Page 36
Installation CAUTION ! - Please make sure there is no gap between gland and cable. - Please make sure the gland is tight after setup as shown below. should not be loosen! The cable gland is suitable for multi-core cable, if wiring is using single-core cable with 3”...
Installation 3.5 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 To ensure a better operating performance of the inverter, recommended configuration for the PV array are shown below: 1.To ensure the inverter operates with the highest performance, the DC input voltage should greater than the AC Line-Line Voltage * 1.5 ( or AC phase Voltage *2.6 ) If the DC input voltage is lower than above value, inverter will not operates normally.
Page 39
Installation DC wiring polarities are divided into positive and negative, and the layout of the connectors is shown in Figure 3-20. Refer to right side Figure 3-20: Location of H4 connectors to connect array wiring (DC) ATTENTION - For unused DC connectors, please keep the cap on to prevent water or dirt intrusion.
Page 40
Installation ■ DC Side Y connection M125HV_111 is compatible with 1500V/30A CE listed fuse, however, the designer must be beware of the following requirements: • The max Isc-stc of a connected array (sum of all paralleled strings) cannot exceed the rated Isc limit of the inverter, that is no more than 320A total. •...
Installation 3.5.2 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 3-21. 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 3-21: Mount the equipment grounding...
Installation 3.6 Communication Module Connections The communication module of M125HV_111 is shown in Figure 3-22. 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 3.6.1 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.
Page 44
Installation ATTENTION (for Taiwan use only) -This inverter is compliant with the “Technical Specification for Security Inspection of Solar Inverter and Monitoring Units” required by BSMI. - After completing the wiring operation and ensuring the cover no longer needs to be opened, please refer to Figure 3-24 to apply a brand new one-time-use security seal (item 10, Table2-1) .
Installation 3.6.2 RS-485 Connection The pin definition for the RS-485 terminal block is shown in Table 3-4. - 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 3-25: Multiinverter connection illustration Table 3-5: Vcc and Bus Termination switch settings Switch 1 Terminal Resistor ON Terminal Resistor OFF...
Installation 3.6.3 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 3-26: 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 3.6.4 Dry Contact Connection M125HV_111 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 3-27. 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_111 with 3 LEDs allow visual display of the inverter’s data and status as shown in Figure 4-1.
(iOS user) (Android user) DeltaSolar About OS version iOS: 8.0 and above Android OS: Android DELTA ELECTRONICS, INC. 8.0 and above QR Code Android Start Commissioning the Inverter ① Enable the Bluetooth function of your mobile device. ② Click the Bluetooth icon on the bottom right corner.
Page 51
Commissioning ④ Select “Local Setting” sheet and click “Grid Setting”. ⑤ Click “Inverter ID” to select the required ID and then click “Inverter ID Set”. ⑥ Click “Country” to select the required grid code and then click “Set”. ⑦ Done. Figure 4-3: Steps to commission via bluetooth (4-7)
Commissioning 4.3 Commission multiple inverters – Auto ID Function The Auto ID function can set all inverter IDs at once by DSS (Delta Solar System) or DeltaSolar APP. - DSS Connect the inverter through RS-485 with computer. - APP Connect the inverter through DC1 with mobile device.
Commissioning 4.3.3 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 4-6: Steps of ID setting...
Commissioning 4.4 Delta Function Setting Delta offers two setting tools: DSS (Delta Solar System Software) and APP (DeltaSolar) 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 59
Maintenance AC side (left) DC side (right) ATTENTION - After opening the door, please make sure the door is fixed by hexagon driver to avoid strong wind breaking it. Figure 5-2: To secure door by hexagon driver...
Maintenance 5.1.1 Open the Door • Without rain cover or protection, never perform any wiring or maintenance operations under rainy conditions. • Before opening the front door, please wipe the inverter case if it is wet to avoid water seepage. •...
Maintenance 5.2 Replacement of Surge Protection Devices (SPD) M125HV_111 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 62
Maintenance Surge protection devices (SPD) are designed to protect sensitive circuit elements of the inverter from damage caused by lightning and other electrical transients/surges, as such they are sacrificial components and periodically, may need replacement. The SPDs are located in the inverter. If a warning message “AC Surge”...
Page 63
Maintenance • Accessing the door 1. Switch DC power off and wait until LED display turns off. 2. To access the door, use procedure found in Section 5.1.1 Do not leave the door opened for long periods of time. • Changing the SPD modules - use the following procedure: The AC and DC SPD units are located as shown in Figure 5-6.
Page 64
Maintenance AC side door DC 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 65
Maintenance AC SPDs * A/G: Screw torque 0.8N•m Figure 5-7: Remove wirings as connectors of AC SPD DC SPDs * A/G: Screw torque 0.8N•m Figure 5-8: Remove wirings as connectors of DC SPD...
Maintenance 5.3 Replace Internal String Fuse M125HV_111 have independent MPPT inputs. The combiners utilize standard 10mm x 85mm PV combiner fuses and associated fuse holders. Because of the TL design, all strings are floating with respect to ground, and two fuses are required per string input connected in series with the positive and negative string leads.
Page 68
Maintenance M125HV_111 is equipped with 40 combiner fuses in “pull-out fuse holders, which support connection of up to 20 strings. The fuse holders are mounted on two PWBs. The pull-out fuse holders allow safe removal of fuses which are inserted into a carrier.
Page 69
Maintenance 2. Pull the fuse puller vertically to remove the fuse holder. (The fuse holders should be removed or installed vertically.) Figure 5-11: Accessing the individual fuses Do not remove the fuse holder obliquely, it will cause the base mount fuse holder to become loose. Do not remove the fuse holder with inappropriate tools, such as the screwdriver.
Page 70
Maintenance 3. Open the lid of the fuse holder. 4. Tilt the fuse holder slightly to take out the fuse. * Please be careful not to drop the fuse at this time. Figure 5-13: Replace the fuse 5. Insert the calibration tool vertically downward to the clamp of the fuse holder, and then pull it out.
Maintenance 5.4 Smart Fans Replacement and Filter Cleaning M125HV_111 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 74
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 5-16: Disassembling fan tray from PM chassis...
Maintenance 5.4.3 Internal Fan 1 When used, the DC side (right) compartment is provisioned with a single fan module. (See Figure 5-17, 5-18, 5-19, 5-20) If the warning "Fan Fail- Internal F00" show on the DSS / APP, please follow the procedure below to remove Internal Fan 1.
Page 76
Maintenance * Screw torque required for assembling: 0.8N•m Figure 5-19: Take off the internal fan 1 * Screw torque required for assembling: 0.6N•m Figure 5-20: 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 5-21, 5-22, 5-23, 5-24) If the warning "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 78
Maintenance Figure 5-23: Take off the internal Fan 2 * Screw torque required for assembling: 0.6N•m Figure 5-24: 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!! To avoid serious injury, use following procedures. - Switch off external AC circuit breaker or switch to disconnect the electrical grid from the inverter chassis.
Page 80
Maintenance CAUTION : HOT SURFACES, DO NOT TOUCH ! - Use care not to touch hot surfaces if the inverter is just shutting down. - Do not perform any task until the product cool down sufficiently. CAUTION : POSSIBILE INJURY ! The inverter weighs 80 kg.
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 DC Injection Contact customer service for (F01, F02, Utility waveform is abnormal technical support F03, F04) Temperature One of inner ambient NTC and Check the installation ambient and High inverter module NTCs is over...
Page 83
Error Message and Trouble Shooting Table 6-2B: Fault Codes (inverter fault) & Messages Message Description Action AC RLY Open Contact customer service for Grid relay open (F29) technical support Bus Unbalance Inverter Vbus voltage Restart inverter by DC switches (F30) unbalance Bus Voltage High Voc of PV array is over...
Technical Information 7 Technical Information 7.1 Technical of M125HV_111 Table 7-1A: Specifications Model M125HV_111 DC Input Occasionally Max. voltage 1500V * 860 – 1500V Operating voltage range 860 – 1350V * MPP voltage range Rated voltage 1050V MPP tracker Max. operating current 150A Max.
Page 86
Table 7-1B: Specifications Model M125HV_111 Efficiency Peak efficiency >99 % 98.7 % Euro efficiency Information Communication RS-485 (Delta / Sunspec) , Bluetooth Indicator (Grid, Alarm, COMM.) Regulation Enedis-PRO-RES_64E IEC 62109-1/-2 UTE C 15-712-1 IEC 61439-2 VDE AR-N 4110 IEC 61727...
Page 87
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_111 Output voltage at 600Vac P/Pn(%) Pn=125kW 100%...
Page 88
Technical Information Power Derating Curve with Ambient Temperature 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 Temperature (PF=1)
Page 89
Technical Information Power Derating Curve with Ambient Temperature 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 Temperature (PF=0.9)
Page 90
Technical Information Apparent Power Derating Curve with Ambient Temperature 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 Temperature (PF=1)
Page 91
Technical Information Apparent Power Derating Curve with Ambient Temperature Output voltage at 600Vac PF=0.9 S/Sn(%) Sn=125kVA 112% 110% 100% 90 % 80 % 70 % 60 % 860V 50 % 1050V 1250V 40 % 1350V 30 % 20 % Ambient Temperature (°C) Figure 7-5: Apparent Power Derating Curve with Ambient Temperature (PF=0.9)
Page 92
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 93
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 94
Technical Information Efficiency of M125HV_111 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_111 support the spare parts of DC 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 96
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 97
Appendix A: Installation of DIN Rail SPD (Optional) ① Figure A-3: Open the DC SPD shield cover Figure A-4: Disassemble and remove two screws to remove DC SPD PCB...
Page 98
Appendix A: Installation of DIN Rail SPD (Optional) Screw torque 2N•m Screw torque 4.4N • m Screw torque 4.4N • m Screw torque 2N • m Screw torque 2N • m Figure A-5: Lock track and Install...
安裝 緊固圈 防水塞 表 3-2 : M125HV_111 交流電纜接頭規格 Cable diameter range Torque Dimension of P 72 - 77 mm 6.5 - 4.5 mm N • m 6 - 3 mm 65 - 72 mm N • m 5.5 - 2 mm 57 - 65 mm N •...
試運行 4.3 多台裝置初始設定-Auto ID 透過以下兩種軟體可以使用自動ID設定功能,一次設定所有變流器ID - DSS (Delta Solar System) 變流器可透過RS485接線連接至電腦,使用DSS進行設定。 - DeltaSolar APP 變流器透過DC1連接行動裝置(智慧型手機、平板等),使用APP進行設定。 4.3.1 DSS連接 ① 選取欲設定的機種 ② 點擊 “RS485“ ③ 選取通訊端 (程式自動偵測) ④ 點擊 ② ① ④ Model Name ③ 圖 4-4 : DSS連接...
試運行 4.4 Delta功能設定 Delta 提供兩種機器設定方式 : DSS (Delta Solar System Software) 與 APP(DeltasSolar) 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_111 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...
維護 AC side door DC 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.
錯誤告警及排除問題 6.2 故障訊息(變流器故障) 表 6-2A: 錯誤訊息 (變流器故障) 資訊顯示 可能原因 故障排除 DC Injection (F01, F02, 市電波形異常 請聯繫客服人員,尋求技術支援 F03, F04) Temperature 變流器內部環溫或功率模組 High 檢查設備的周遭和環境 溫度過高 (F05) Amb Temp Fault 環境溫度>105℃或<-40℃ 請聯繫客服人員,尋求技術支援 (F06) Temperature 變流器內部環溫或功率模組 檢查設備的周遭和環境 溫度過低 (F07) Inveter Temp Fault 變流器溫度>125℃或<-40℃ 請聯繫客服人員,尋求技術支援 (F10) AC RLY Fault AC relay 開路...
Page 184
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 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正負壓差過高 重新啟斷DC開關 (F30) Bus Voltage High 太陽能板Voc超過1500Vdc 重新啟斷DC開關 (F31, F33, F35) Bus Voltage Low 變流器內部直流電壓單邊電壓過低...
附錄 附錄A: 軌道式雷擊保護裝置安裝 (選配) M125HV_111支援更換 type I 和 type II 的直流軌道式雷擊保護裝置。 - 直流側雷擊保護器配件如PE接線、軌道和螺母用於更換DC SPD,如圖A-2所示。 警告 ! - 在進行交流斷路器和直流開關之維護程序時,請避免電擊危險! - 請先確認更換位置,左側為交流側門,右側為直流側門。禁止同時打開兩側。...
Need help?
Do you have a question about the M125HV and is the answer not in the manual?
Questions and answers