Sunway NT 10000 user manual 25 a, Three-phase grid connection

Page 26

Three-phase grid connection

PE

N

L3

L2

L1

25 A

 

 

 

 

 

L1

 

 

 

 

 

L2

 

 

 

 

 

L3

 

 

 

 

 

N

 

 

 

 

 

PE

Always use sufficiently dimensioned cable cross-sections to prevent a significant incre- ase of the grid impedance between the service distribution system and the Solar Inverter. The capacity of the AC terminals is

0.5mm2 to 6 mm2 for rigid cables, and 0.5 mm2 to 10 mm2 for flexible cables. If the grid impedance is high, i. e. due to relati- vely long or thin cables, the voltage at the grid terminal is increased during injection. If the terminal voltage exceeds the admissi- ble value, the Solar Inverter is disconnected from the grid. If the power grid is weak and the PV output is high, individual Solar

Inverters may repeatedly switch on and off.

Carry out the following steps carefully:

·Prior to inserting the power cable into the device, make sure it is de-energised.

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Contents Sunways Solar Inverter NT Solar Installation Safety InstructionsBasic Settings Sunways Solar InverterOperating the Display Configuration of the Solar InverterDismantling the Solar Inverter Internal Data MemoryTyco Solarlok Connectors Error DisplayError Diagnosis Abbreviations Technical Data NTGeneral information General Safety Instructions Opening the Device Checking the Consignment Sunways Solar Inverter NTScope of Delivery Page Standard Components of a PV System Standard components of the PV systemStructure of NT Page Protection Concept Error No DescriptionError Description Page Installation Instructions Electrical Safety Mechanical SafetyCleaning Instructions Basic Settings Fixed voltage level 420 540Country Settings Page Ceiling 300 mm Min mm · Thermal Interaction · Protection from Moisture and Foreign ObjectsMechanical Installation Grid Connection DC+ USBThree-phase grid connection 25 aPage Connecting the PV Generator · Preparation · Connection Important InformationPage Communication Interfaces · RS485 Wiring · Connecting a cable to the spring-loaded terminalSpare RS485MATCH RS485GND Connecting the Alarm Relay · Important InformationParalleled alarm relays of several Solar Inverters Alarm relay terminal allocationConnecting the Insolation Temperature Sensor Solar inverter pin name · Allocation of the cable terminal blockSensor pin name Starting-Up and Shutting-Down Solar Inverter Start-up with DC main switchCommissioning the Solar Inverter Shut-down without DC main switch Start-up without DC main switchShut-down with DC main switch Operating Instructions · Navigating with the Arrow Keys · Setting Values· Menu Guide Page Page Configuring the Solar Inverter Internal Data Memory Sunways Monitor 2.0 Software Sunways Portal and Sunways Communicator Modem LinkInterface Cables Interface TransformerLink SunwaysMonitor Direct Monitor Local134 Modem Ad 5 Local Link for up to 99 Solar Inverters Spare RS485MATCH USBInverter 3 RS485 Ad 6 Remote Link for up to 99 Solar Inverters Finding the Jumper «RS485 MATCH» Solar InverterErrors 001 to Errors 004 toErrors 010 to Errors 007 toErrors 013 to ErrorErrors 023 to Errors 017 toErrors 020 to Errors 034 to Errors 031 toErrors 028 to Illustr. Operation indicator LED 143 Error Causes RemediesErrorCauses Remedies Error Causes ErrorCauses Error Causes Error Causes Error Causes 152 Appendix Tyco Solarlok Connectors Page LCD Designation Description MPPTechnical Data NT 10000 Model Solar Inverter NT159 Conformity and Safety Declarations 161 162 · Conditions Terms and Conditions of Guarantee· Duration of Guarantee · Exclusion of Liability Registered trademark General Exclusion of LiabilityAll rights reserved. Sunways AG Version 11/05