4. Installation4. Installation.21..20.4.3.7 Meter Connection(optional)Figure 4.23 Meter in Grid4.3.8 CT connections(optional)This inverter has integrated export limitation functionality. To use this function, a powermeter or a CT must be installed if use the CT please reference below picture. The CT, ,should be fitted around the live conductor on the grid side of the main incoming consumerunit. Use the directional flow indication arrow on the CT to ensure it is fitted in the correctorientation. The arrow should be pointing towards the grid, not the load. when the inverterpower on, please set the corresponding configuration as sections 6.5.11.1.4.1 and 6.5.11.1.4.2.4.3.6 Electrical connection diagramFigure 4.21 Guidance for a Simple Installation of an Inverter Solar Energy SystemIsolation switchSolar supplymain switchConsumersmains(to grid)MainswitchMAIN SWITCHBOARDCircuits notprotected byRCDsCircuits Protectedby RCDsIsolation deviceInverter withintegral gridProtection deviceSolar(PV)array1121. The RCD should be in parallel connection between the consumers mains and the solar supply.2. More than one RCD may be used. Each RCD can protect one or more circuits.Refer to figure 4.21, which is a simple guidance for installing a solar system with PV inverter.A DC isolator is required to be installed in the system between PV panels with inverter.Figure 4.24 Direction of CTInverterCT Input L NL NLoadNLCTGrid15 6 7 8MENU1600 imp/kWh220V~10(60)AT1 T2 T3DDSD1352L NL´ N´CommunicationGridLoadA BFigure 4.22 Meter in Load15 6 7 8MENU1600 imp/kWh220V~10(60)AT1 T2 T3DDSD1352L NL´ N´CommunicationGridLoadA BThe inverter has intergrated export limitation functionality.To use this function a power meter or a CT must be installed if use the power meter it should, , ,be installed in the load side or in the grid side Because the meter used in the single-phase,inverter is divided into two types: single-direction meter, and dual-direction meter.Therefore,the wiring method is divided into two cases.The dual-direction meter corresponds to the meterin grid connection mode; the single-direction meter corresponds to the meter in load connectionmode.see Figure 4.22 and 4.23. After the inverter power on please set the corresponding,configuration as sections 6.5.11.1.2 and 6.5.11.1.3.