Added inverter active signal to avoid triggering the isolation monitoring

PLC/POUs/Sunspec/FB_PowerSupplySunspec.TcPOU

@@ -742,6 +742,7 @@ CASE _iState OF
 			IF NOT _fbWriteRegister.bError THEN
 				_iState := 60; // 51
 				_uiPCSSetOperation := 1; // 4
+				xActive := TRUE;
 			ELSE
 				xError := TRUE;
 				// Goto error state