02: Frequency Converter enable/disable 
Parameter 2: Frequency mode 
Setting output frequency at CVCF mode or not CVCF mode. You 
may choose following two options in parameter 3: 
ENA: Setting UPS to CVCF mode. If selected, the output 
frequency will be fixed at 50Hz or 60Hz according to “Output 
frequency setting”. The input frequency could be from 46Hz to 
64Hz. 
DIS: Setting UPS to normal mode (not CVCF mode). If selected, 
the output frequency will synchronize with the input frequency 
within 46~54 Hz at 50Hz or within 56~64 Hz at 60Hz according to 
setting in “Output frequency setting”. If 50 Hz is selected in 
“Output frequency setting”, UPS will transfer to battery mode 
when input frequency is not within 46~54 Hz. If 60 Hz is selected 
in “Output frequency setting”, UPS will transfer to battery mode 
when input frequency is not within 56~64 Hz.   
  03: Output frequency setting   
Parameter 2: Output Frequency 
50.0Hz: The output frequency is setting for 50.0Hz.   
60.0Hz: The output frequency is setting for 60.0Hz. 
ATO: If selected, output frequency will be changed based on the 
latest input utility frequency. If it is within 46Hz and 54Hz, the 
output frequency will be 50.0Hz. If it is within 56Hz and 64Hz, the 
output frequency will be 60.0Hz. ATO is default setting. 
 
If converter mode is enabled and output frequency is set to ATO 
mode, it will display “A50” when UPS is working on 50Hz mode or 
“A60” when UPS is working on 60Hz mode in LCD.   
 
  04: ECO mode enable/disable 
Parameter 2: Enable or disable ECO function. You may choose 
following two options:   
ENA: enable ECO function; 
DIS:: disable ECO function; 
If ECO function is disabled, voltage range and frequency range 
for ECO mode still can be set, but it is meaningless unless the 
ECO function is enabled.