6. Operation6. Operation.36. .37.See figure 6.29. If CT test pass but inverter still can't achieve export power(power is not controllable or always 0 power output).Please check installation location of the CT.InverterCT Input L NL NLoadNLCTGridCTCT √××6.5.11.2 Backflow PowerThis submenu is used for set allowedpowerthatinvertercangeneratetogrid.->Set Backflow PowerFigure 6. Set the power30 backflow Figure 6.31YES= NO=P_Backflow:-0001WPress the UP/DOWN keys to set data.Press the ENTER key to set backflow powerThen press DOWN keys to move the cursor, press UP to change the number.Press the ESC key to save the settings and return to the previous menu.Figure 6.29 CT loction6.5.11.3 Fail safe ON/OFFFigure 6.32 Set the Fail Safe ON/OFFYES= NO=Fail Safe Set:ONPress the UP/DOWN keys to set ON/OFF.Press the ENTER key to set done .Press the ESC key to the previous menu.This function is used to remind whether the fail safe function is ON or not.The default setting is ON.6.5.12 Restart HMI6.5.13 Debug ParameterThis function is used for manufacturer maintenance personnel only.ThefunctionisusedforrestarttheHMI.This function is applicable by maintenance personnel only, wrong operationwill prevent the inverter from reaching maximum power.6.5.15 Power ParameterThe screen shows:Figure 6.33 Power Rate LimitYES= NO=Power para:1.000Press the Down key to move the cursor.Press the Up key to change the digit.Please press the Enter to save the setting and press the ESC key to return tothe previous menu.This setting is used for grid operator, don't change setting under this manual.This function is used for calibrate inverter output energy. It will not impact the energy countfor inverter with RGM.6.5.14 DSP UpdateThe function is used for update the DSP.This function is applicable by maintenance personnel only, wrong operationwill prevent the inverter from reaching maximum power.ON: When CT is disconnected, the inverter will stop generate power and LCD show"Fail Safe"OFF: When CT is disconnected, the inverter will be limited to the power at the time CT isdisconnected. If restart, inverter will not limit output power.