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Symmetra PX; Bypass not in Range messages

Issue:

Symmetra PX; Bypass not in Range

Product line:

Symmetra PX

Environment:

All models, all serial numbers

Cause:

Bypass not in range messages are generated whenever the AC input voltage goes outside of the acceptable bypass criteria (-10%/+12%).

The voltage thresholds are:

Input Voltage - Normal Operation = 166-240Vac (-20/+15%) or 96-138Vac (L-N)
BYP voltage range = 187-229Vac (-10/+10%) or 108-132Vac (L-N)
Output Frequency (sync to mains) 57 - 63 Hz for 60 Hz nominal

This event can also be generated if the input frequency falls outside the UPS output frequency setting.

You can configure the output frequency on the Power View:

60 Hz +/- 0.1 Hz

60 Hz +/- 3 Hz

60 Hz +/- 10 Hz

50Hz +/- 0.1 Hz

50Hz +/-3Hz

50Hz +/-10Hz

For example, if the output frequency is set to 60 Hz +/- 0.1 Hz and the frequency is 60.2 Hz you will have this alarm. If you wish to adjust the output frequency you must do so in Load Disconnect mode.

Resolution:

No action necessary