FirstLine UPS
Form No. 003-2323 Rev B
27
Automatic Transfer To Bypass
The static switch will automatically transfer the load to bypass if the bypass input is
qualified and one of the following conditions applies:
1.
Initial start-up of UPS.
2.
The inverter is unable to support the load due to a) failure, b) overload, c) battery
reaches end of discharge voltage threshold.
3.
Loss of output voltage is detected.
Automatic Transfer To Inverter
The static switch will automatically transfer the load to inverter if all of the following
conditions are true:
1.
The inverter has been started and is running normally.
2.
The inverter is phase-locked to the bypass input.
3.
There was no manual transfer to bypass.
4.
There is no overload present.
5.
There have not been more than three overload-caused transfers to bypass in a one
hour period.
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