In order to enable/disable the audible alarm on the XW inverter/charger and the Conext SW Inverter/charger, you have to navigate through the system control panel.
From the System Status Screen
1.) Press Enter
2.) Under Select Device select the SCP
3.) Scroll down until you see Fault Alarm
4.) Press enter to enable/disable
*NOTE: Below the fault alarm option there is an additional low battery alarm that you would need to enable separately from the fault alarm option