©2021 Lowell Manufacturing Co. UPS9A Series (X-Rev 8/13/20)
Pg. 19
Indicates the AC to DC circuit is working.
PFC
Indicates the PFC circuit is working.
Indicates the inverter circuit is working.
CVCF
Indicates the UPS is working in converter mode.
Indicates the output is working.
Battery information
Indicates the battery level by 0-24%, 25-49%, 50-74%, and 75-100%.
Indicates low battery.
3-3. Audible alarm
Battery Mode
Sounding every 5 seconds
Low Battery
Sounding every 2 seconds
Overload
Sounding every second
Fault
Continuously sounding
Bypass Mode
Sounding every 10 seconds