ASR-3000 Series User Manual 
146 
When Output is Off and it detects 
input power abnormal, the message 
“System Shutdown” will be 
displayed. Be noted that buzzer 
couldn’t sound and ALM status 
couldn’t show when Buzzer is On. 
 
Neither buzzer beep nor warning 
message will be shown when it 
detects input power abnormal 
regardless of Buzzer activation or not. 
When “Power Input Anomaly” or “System Shutdown” 
message appears, it is Not available to operate any 
button or execute any SCPI command. Besides, SCPI 
Error message will be shown on the condition of 
System Error.