Operation and Simple Running 8-2AC10 InverterFault alarm statusThe status under which the inverter has a fault and the fault code is displayed.Fault codes mainly include: OC, OE, OL1, OL2, OH, LU, PF1 and PF0 representing “overcurrent”, “over voltage”, “inverter overload”, “motor overload”, “overheat”, “input under-voltage”,“input phase loss”, and “output phase loss” respectively.For troubleshooting, please refer to Chapter 10 “Troubleshooting”.8.2 Keypad Panel and Operation MethodKeypad panel (keypad) is fitted as a standard part for configuration of the AC10 inverter. Usingthe keypad panel, the user may carry out parameter setting, status monitoring and operationcontrol over the inverter. Both keypad panel and display screen are arranged on the keypadcontroller, which mainly consists of three sections: data display section, status indicating section and keypad operating sectionIt is necessary to know the functions and how to use the keypad panel. Please read thismanual carefully before operation.8.2.1 Method of operating the keypad panel8.2.2 Operation Process of Setting the Parameters using the Keypad PanelA three-level menu structure is adopted for setting the parameters using thekeypad panel, which enables convenient and quick searching and changingof function code parameters.Three-level menu: Function code group (first-level menu) Function code (second-level menu) Set value of each function code (third-level menu)8.2.3 Setting the ParametersSetting the parameters correctly is a precondition to give full inverterperformance. The following is the introduction on how to set the parametersusing the keypad panel.Operating procedures: Press the “M” key, to enter programming menu. Press the key “O”, the DGT lamp goes out. Press ▲ and ▼. Thiswill scroll the first digit after the F, changing the selected functioncode group. The first number behind F displayed on the panelshows the current function group, in other words, if it displaysF1××at this moment then basic parameters F100 – F160 isselected. Press the key “O” again, the DGT lamp lights up. Press ▲ and ▼ toscroll up and down the function code within the selected functiongroup; press the “E” key to display 50.00; while press ▲ and ▼ tochange to the need frequency. Press the “E” key to complete the change.8.2.4 Switching and displaying of status parametersUnder stopped status or running status, the LED indicators of inverter can display statusparameters of the inverter. Actual parameters displayed can be selected and set throughfunction codes F131 and F132. Through the “M” key, it can switch over repeatedly and displaythe parameters of stopped status or running status. The followings are the description ofoperation method of displaying the parameters under stopped status and running status.8.2.5 Switching of the parameters displayed under stopped statusUnder stopped status, by default the inverter has three parameters of stopped status, whichcan be switched over repeatedly and displayed with the keys “M” and “O”. These parametersare displaying: frequency/function-code, target RPM, DC BUS voltage. Please refer to the