Step 1-Configuration=>ATS=>Frequency/Voltages
Step 2-Line Frequency: Shows the nominal line frequency of the ATS.
Step 3-Frequency Deviation: Defines the range of acceptable frequency fluctuation to the nominal line frequency
.For example: if the nominal line frequency is 50Hz, and 3Hz deviation  selected, the acceptable frequency range will be 47Hz ~ 53Hz.
Step 4-Line VRMS: Nominal source line voltage setting for the device.
Step 5-Wide VRMS Limit: The voltage fluctuation limit to use when the Voltage Transfer Range is set to Wide. This value must be greater than the Medium VRMS Limit.
Step 6-Medium VRMS Limit: The voltage fluctuation limit to use when the Voltage Transfer Range is set to Medium. This value must be greater than the Narrow VRMS Limit and less than the Wide VRMS Limit.
Step 7-Narrow VRMS Limit: The voltage fluctuation limit to use when the Voltage Transfer Range is set to Narrow. This value must be less than the Medium VRMS Limit.
Step 8-Sensitivity: Defines the sensitivity to change in voltage.
High Causes the ATS to switch to the alternate power source in response to small line voltage changes. Use for the best protection for sensitive equipment.
Low causes the ATS to accept frequent small line voltage changes without switching to the alternate power source.
Step 9-Voltage Transfer Range: Defines the range options of acceptable voltage from a power source. If the voltage measured from the selected input source is not within this range, the ATS will switch/transfer over to the alternate power source.
Step 10 After selecting the desired sensitivity frequency and voltage range 'Apply' changes.

Released for: Schneider Electric India