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Sunways STT Series, User Manual

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48

49

Error Message

Description

Troubleshooting

Bus Voltage Fault

BUS voltage is over-high.

① Restart the inverter, wait a moment for 
inverter recovery.
② If the fault occurs repeatedly, please contact 
Sunways.

SCI Fault

Internal communication fails. 
Caused  by  a  strong  external 
magnetic field etc.

① Restart the inverter, wait a moment for 
inverter recovery.
② If the fault occurs repeatedly, please contact 
Sunways.

SPI Fault

Internal communication fails. 
Caused  by  a  strong  external 
magnetic field etc.

① Restart the inverter, wait a moment for 
inverter recovery.
② If the fault occurs repeatedly, please contact 
Sunways.

E2 Fault

Internal  storage  anomaly. 
Caused  by  a  strong  external 
magnetic field etc.

① Restart the inverter, wait a moment for 
inverter recovery.
② If the fault occurs repeatedly, please contact 
Sunways.

GFCI Device Fault

GFCI device anomaly.

① Restart the inverter, wait a moment for 
inverter recovery.
② If the fault occurs repeatedly, please contact 
Sunways.

AC Transducer Fault

AC transducer anomaly.

① Restart the inverter, wait a moment for 
inverter recovery.
② If the fault occurs repeatedly, please contact 
Sunways.

Error Message

Description

Troubleshooting

Relay Check Fail

Self-checking  of  relay  fails. 
neutral & ground cable are not 
connected well on AC side or just 
occasional failure.

① Check use multi-meter if there is high voltage 
(normally should be lower than 10V) between 
N&PE cable on AC side. If the voltage higher than 
10V, it means the Neutral & ground cable are not 
connected well on AC side or restart inverter.
② If the neutral & ground cable are connected 
well, please contact Sunways.

Flash Fault

Internal  storage  anomaly. 
Caused  by  a  strong  external 
magnetic field etc.

① Restart the inverter, wait a moment for 
inverter recovery.
② If the fault occurs repeatedly, please contact 
Sunways.

External Fan Fault

External fan anomaly.

① Stop the inverter and disconnect the AC&DC 
cables.
② Check whether the fan is blocked by foreign 
matters. If not, replace the fan.

Internal Fan Fault

Internal fan anomaly.

① Restart the inverter, wait a moment for 
inverter recovery.
② If the fault occurs repeatedly, please contact 
Sunways.

7  Troubleshooting

7  Troubleshooting

Summary of Contents for STT Series

Page 1: ...S U N W A Y S T E C H N O L O G I E S C O LT D Grid connected Inverter STT 4 25KTL User Manual AU...

Page 2: ...Connection 24 4 5 Monitoring Device Installation 31 4 6 Meter RS485 DRED Connection 32 5 Start and Stop 36 5 1 Start the Inverter 36 5 2 Stop the Inverter 36 6 General Operation 37 6 1 Display Operati...

Page 3: ...this document do not constitute any express or implied guarantee 1 Preface 1 1 Overview This manual is an integral part of Sunways STT 4 25kW series three phase inverters hereinafter referred to as th...

Page 4: ...led in a high traffic area where the fault is likely to be seen 2 2 Statement Sunways Technologies Co Ltd has the right not to undertake quality assurance in any of the following circumstances Damages...

Page 5: ...l on the Inverter nameplate Inverter status indicator Inverter running indicator Grounding symbol the inverter casing needs to be properly grounded The inverter cannot be disposed of with household wa...

Page 6: ...ries inverter includes 20 models which are listed below STT 4KTL STT 5KTL STT 6KTL STT 8KTL STT 10KTL STT 12KTL STT 15KTL STT 17KTL STT 20KTL STT 25KTL STT 4KTL P STT 5KTL P STT 6KTL P STT 8KTL P STT...

Page 7: ...erter must be stored in its original packaging The storage temperature and humidity should be in the range of 30 and 60 and less than 90 respectively If a batch of inverters needs to be stored the hei...

Page 8: ...r faults detected specific fault information can be viewed from the display Off The inverter is running normally Slow flashing The monitoring device is not connected to the router or is not connected...

Page 9: ...e 1 Optional AC Terminal 1 Ground Terminal 1 6Pin Terminal 1 Note Export limitation control version 2pcs RS485 and DRED version 1 pcs This connector already pre installed inside the inverter STT 4 12k...

Page 10: ...inverter at eye level for easy inspection of screen data and further maintenance The ambient temperature of the inverter installation location should be between 30 and 60 The surface temperature of th...

Page 11: ...ate in the accessory bag then fix the L shaped plate to the mounting bracket Figure 4 6 Bracket assembly Use an electrical driller with 10mm diameter bit to drill 5 holes in the wall with 80mm depth W...

Page 12: ...l to the grounding hole in the lower right side of the inverter as shown in Figure 4 9 The cross sectional area of the external grounding cable is 4mm2 Danger Do not connect the N wire as a protective...

Page 13: ...pole of the PV string otherwise it will cause serious damage to the inverter Warning Static may cause damage to the electronic components of the inverter Anti static measures should be taken during in...

Page 14: ...er grid make sure that the power grid voltage and frequency meet the requirements of the inverter See technical parameters for details All Sunways inverters incorporate internal RCD Residual Current D...

Page 15: ...ve wires into the appropriate hole of the terminal head by following the rules yellow green wire to PE port red or brown fire wires to L ports no requests for the sequence of three fire wires and blue...

Page 16: ...The 4G and GPRS version module does not need to be configured 2 The WiFi version module needs to be configured to the router for the first installation If the router name or password are changed the W...

Page 17: ...ter with 3CTs to activate the Export Limitation control function on Sunways STT series inverter 1 RS485 A 2 RS485 B 3 PE NULL Port 2 Export limitation control RS485 DRED version with this port ln case...

Page 18: ...oss 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 4 6 3 Export limitation control or generation...

Page 19: ...es until the inverter is completely de energized before conducting any work on the inverter Disconnect the AC and DC cables 6 General Operation 6 1 Display Operation When the inverter is turned on the...

Page 20: ...the residencial three phase solar system is 15kVA in most of the states in Australia Check the local DNSPs or authorities if they allow AC output more than 15kVA Note Advanced settings can only be cha...

Page 21: ...s tech com 6 4 2 Reactive power regulation for voltage variation Volt VAr mode This mode can be enabled via the configuration software It is enabled by default in some regions such as AU market For in...

Page 22: ...mit in Advanced Settings Please follow this flow chart to set Export Limit The Export Limit settings are password protected User should be able to view but not edit the Export Limit If you are install...

Page 23: ...ation Limit settings are password protected User should be able to view but not edit the Generation Limit If you are installer please contact importer for password If there are any problems in the ins...

Page 24: ...icker AC cable if that is the case 7 Troubleshooting Error Message Description Troubleshooting Grid Frequency Fault Grid over frequency or underfrequency the grid frequency is higher or lower than the...

Page 25: ...ult AC transducer anomaly Restart the inverter wait a moment for inverter recovery If the fault occurs repeatedly please contact Sunways Error Message Description Troubleshooting Relay Check Fail Self...

Page 26: ...an the air inlet and outlet if necessary Six months to a year it d e p e n d s o n t h e d u s t contents in air 7 2 PV System for Ground Faults If ground fault occurs the inverter will beep the red L...

Page 27: ...RD1699 NBR16149 IEC61727 IEC60068 IEC61683 EN50549 EN61000 8 Technical Parameters Model STT 6KTL STT 6KTL P STT 8KTL STT 8KTL P Input Start up Voltage V 200 180 200 180 Max DC Input Voltage V 1 100 1...

Page 28: ...BR16149 IEC61727 IEC60068 IEC61683 EN50549 EN61000 Model STT 10KTL STT 10KTL P STT 12KTL STT 12KTL P Input Start up Voltage V 200 180 200 180 Max DC Input Voltage V 1 100 1 100 1 100 1 100 Rated DC In...

Page 29: ...99 NBR16149 IEC61727 IEC60068 IEC61683 EN50549 EN61000 Model STT 15KTL STT 15KTL P STT 17KTL STT 17KTL P Input Start up Voltage V 200 180 200 180 Max DC Input Voltage V 1 100 1 100 1 100 1 100 Rated D...

Page 30: ...1699 NBR16149 IEC61727 IEC60068 IEC61683 EN50549 EN61000 Model STT 20KTL STT 20KTL P STT 25KTL STT 25KTL P Input Start up Voltage V 200 180 200 180 Max DC Input Voltage V 1 100 1 100 1 100 1 100 Rated...

Page 31: ...grated AC Short circuit Protection Integrated AC Over voltage Protection Integrated General Data Dimensions mm 550W 410H 175D Weight kg 25 29 25 29 Protection Degree IP65 Self consumption at Night W 1...

Page 32: ...S11 00030 01 No 1 Second Road Green Industrial Zone Chongshou Town Cixi City ZheJiang Province PRC www sunways tech com service sunways tech com...

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