Appendix – PowerWalker ATS User Manual
Page 10
EN
10. Appendix:
Input Voltage and Frequency Thresholds
FUNCTION
DESCRIPTION
DEFAULT
SETTING
Acceptable input voltage
range for Source A
Source A will be power source during this
range. When input voltage of source A is
beyond this range, ATS will automatically
switch to power from Source B.
180V – 258V
Return voltage point for
Source A
When input voltage of Source A is back to
normal, the ATS will switch back to Source
A. (Setting Source A as priority power
source and Source B is powering)
Low point: 190V
High point: 248V
Acceptable input voltage
range for Source B
Source B will be power source during this
range. When input voltage of source B is
beyond this range, ATS will automatically
switch to power from Source A.
180V – 258V
Return voltage point for
Source A
When input voltage of Source B is back to
normal, the ATS will switch back to Source
B. (Setting Source B as priority power source
and Source A is powering)
Low point: 190V
High point: 248V
Acceptable input
frequency for Source A
Source A will be power source during this
range. When input frequency of source A is
beyond this range, ATS will automatically
switch to power from Source B.
45Hz – 55Hz
Acceptable input
frequency for Source B
Source B will be power source during this
range. When input frequency of source B is
beyond this range, ATS will automatically
switch to power from Source A.
45Hz – 55Hz