Sunways STT-10K User Manual Download | Manualshive

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Grid-connected PV Inverter

Three Phase Dual MPPT

STT-4K/5K/6K/8K/10K/12K/15K/17K/20K/25KTL

User Manual

Ningbo Sunways Technologies Co., Ltd.

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Summary of Contents for STT-10K

Page 1: ...1 Grid connected PV Inverter Three Phase Dual MPPT STT 4K 5K 6K 8K 10K 12K 15K 17K 20K 25KTL User Manual Ningbo Sunways Technologies Co Ltd ...

Page 2: ...Packing List 13 4 Product Installation 13 4 1 Selection of Installation Location 13 4 2 Mounting the Inverter 15 4 3 Electrical Connection 17 4 4 Monitoring Device Installation 22 4 5 RS485 DRED Connection 23 4 6 System Layout of Units without Integrated DC Switch 26 5 Start and Stop 27 5 1 Start Inverter 27 5 2 Stop Inverter 27 6 General Operation 28 6 1 Display Operation 28 6 2 Auto Test 29 7 Tr...

Page 3: ...is grid connected inverter for power generation needs the permission of the local power supply authority 2 1 7 During the operation of the inverter the surface temperature may be higher and there is a risk of burns Do not touch 2 1 8 When installing photovoltaic panels in the daytime the photovoltaic panels should be covered with opaque materials to avoid the risks and danger of high voltage at th...

Page 4: ...casing needs to be properly grounded Danger Warning Caution Used to warn of urgent dangerous situations if not avoided it could result in death or serious personal injury Description Symbol Used to warn of potentially dangerous situations if not avoided it may result in death or serious personal injury Used to warn of potentially dangerous situations if not avoided it may result in moderate or min...

Page 5: ...ls which are listed below STT 4KTL STT 5KTL STT 6KTL STT 8KTL STT 10KTL STT 12KTL STT 15KTL STT 17KTL STT 20KTL STT 25KTL 3 1 3 Applicable grid type The applicable grid types for the Sunways STT 4 25kW series are TN S TN C TN C S IT and TT When applied to the TT grid the voltage of N to PE should be less than 30V See Figure 3 1 for details 3 1 4 Storage conditions 1 Inverter must be stored in its ...

Page 6: ...view as shown in Figure 3 3 Figure 3 4 Bottom view Figure 3 5 Inverter back view 3 2 3 Inverter bottom view as shown in Figure 3 4 3 2 4 Inverter back view as shown in Figure 3 5 410mm 175mm Name Plate 175mm DC Switch Optional Com2 Port Optional DC Input Terminal Back Rail Com1 Port AC Output Terminal Back Rail Vent Valve Logo Display 550mm 410mm ...

Page 7: ...cking list 3 4 Packing List The package of the inverter includes the following accessories Please check whether the accessories in the packing box are complete at the first time when receiving the goods See Figure 3 7 for the packing list 4 Product Installation 4 1 Selection of Installation Location The Sunways STT 4 25kW series is designed with IP65 protection for indoor and outdoor installations...

Page 8: ...e inverter Warning 4 2 Mounting the Inverter 4 2 1 Wall bracket installation Dimensions of wall bracket see Figure 4 4 1 Use the wall bracket as the template to mark the position of 5 holes on the wall See Figure 4 5 for details Figure 4 4 Dimensions of wall bracket Figure 4 5 Mark the hole position 500mm 500mm 500mm 500mm 300mm 300mm 300mm 4 1 3 The installation angle of the inverter is recommend...

Page 9: ... does not exceed 1100V 4 3 1 2 DC connector assembly procedures 1 Select the appropriate photovoltaic cable 2 Peel off the DC cable insulation sleeve for 7 mm as shown in Figure 4 8 Cable type Conductor cross setional area mm General photovoltaic cable Scope mm Recommended value mm 2 5 4 0 4 0 A high voltage in the conductive part of the inverter may cause an electric shock When performing any ins...

Page 10: ...to measure the voltage of the DC input string verify the polarity of the DC input cable and ensure that each string voltage is within 1000V Warning Open end Wrench Figure 4 12 Figure 4 13 Model STT 4KTL STT 5KTL STT 6KTL STT 8KTL STT 10KTL STT 12KTL STT 15KTL STT 17KTL STT 20KTL STT 25KTL Copper Cable 2 5 10mm2 2 5 10mm2 2 5 10mm2 3 2 10mm2 4 10mm2 6 10mm2 6 10mm2 8 10mm2 8 10mm2 8 10mm2 Breaker 2...

Page 11: ... casing Otherwise it may cause electric shock Good grounding is good for resisting surge voltage shock and improving EMI performance Inverters must be well grounded For a system with only one inverter just ground the PE cable For a multi inverter system all inverters PE wire need to be connected to the same grounding copper bar to ensure equipotential bonding 5 Connect the AC connector to the inve...

Page 12: ...hree phase inverter supports WiFi GPRS and RS485 communication you can choose according to your specific needs Plug the WiFi or GPRS module into the COM1 port in the bottom of inverter by following the direction the side with indicator is up as shown in Figure 4 19 A slight click sound during the installation represents that the assembly is in place Figure 4 18 Grounding terminal connection 4 5 RS...

Page 13: ...s inverter STT 4 25KTL series inverter Data logger Sunways server Internet RS485 RS485 RS485 Internet Figure 4 21 Suggest using the RS485 communication cable with a cross sectional area of 0 75 1 5mm and an outer diameter of 5mm 10mm RS485 cable requirements Shielded twisted pair cable or shielded twisted Ethernet cable Attention Port Function NO Definition Port 1 1 Only Anti reverse version with ...

Page 14: ...rter please follow the steps below 1 Turn off the AC breaker first 2 Wait 30 seconds and then turn the DC switch to the OFF position At this time there is remaining power in the inverter capacitor Wait for 5 minutes until the inverter is completely de energized before operating 3 Disconnect the AC and DC cables Figure 4 24 Figure 4 22 Figure 4 23 4 6 System Layout of Units without Integrated DC Sw...

Page 15: ...splays Auto Test Record and hold the button 3 seconds to check the test result The auto test type will be chosen from Remote and Local before starting the auto test Remote is set as 1 by default which only can be modified to 0 by sending an external command and Local is set as 0 by default which can be modified to 1 through operating the button on the inverter According to the requirements of the ...

Page 16: ...ean the inverter enclosure if necessary Check if the air inlet and outlet are normal Clean the air inlet and outlet if necessary Six months to a year it depends on the dust contents in air Error Message Troubleshooting No Display 1 Check whether cables are all firmly connected and DC switch is on 2 Check whether the input voltage meets the working voltage Mains Lost 1 Check whether the mains suppl...

Page 17: ...2 Max Output Current A 6 7 8 4 10 13 3 16 5 20 25 28 4 31 9 39 The measured Inrush current A 7A 4 4ms 7A 4ms 8 5A 4ms Max output fault current A 33 33 33 33 40 40 66 66 76 76 Max output overcurrent protection A 33 33 33 33 40 40 66 66 76 76 Power Factor 0 8 leading 0 8 lagging Max total harmonic distortion 3 Rated Output Power DCI 0 5 In Model STT 4KTL STT 5KTL STT 6KTL STT 8KTL STT 10KTL STT 12KT...

Page 18: ...2 01 Address No 1 Second Road Green Industrial Zone Chongshou Town Cixi City ZheJiang Province PEOPLE S REPUBLIC OF CHINA Website www sunways tech com Service Mail service sunways tech com Hotline 86 400 9922 958 ...

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