UPS: Bypass not in range ; either frequency or voltage.

[Anonymous user]

We experienced a power outage where the UPS did not engage. The error in the log states "UPS: Bypass not in range ; either frequency or voltage." Based on the information below can you tell me what was the cause of this and perhaps are the settings not configured properly?

There is also quite a few "UPS Bypass not in range ; distorted wavform" events. Are these related?

Thanks

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Power Settings:

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Data log during the outage. 

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[Anonymous user]

Hi,

I have the same problem, no one finds the solution?

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Thanks

[BillP · Accepted solution]

Hi Amine

Those messages are just making you aware that the input power to the UPS is bad quality and not good enough quality for the UPS to switch to bypass should it be required due to a UPS issue.

Regards

Matt

[fabur]

So no way to fix this without intervention to the input power line ? 

I could see in Power Settings ->  Output Frequency Range  could be set to +/- 3.0 but I think it's not the right setting since we are talking about the input frequency right?

Thanks in advance. F. 

[RussT-1]

How do I go about clearing  the critical alarm ?  I have no control of the input power