An input voltage or frequency problem no longer prevents switching to bypass mod

[Anonymous user]

Hello ,

I am getting frequent alerts as below mentioned .

Name     : APC 20KVA

Code: 0x0210

Informational - UPS: An input voltage or frequency problem no longer prevents switching to bypass mode.

Please advice.

Thanks ,

[BillP · Accepted solution]

hello - this refers to voltage or frequency problems going in and out of a range meaning if the UPS had to switch to bypass during this fluctuation, it would not be able to.

if these are very frequent, you probably will want to see whats going on with your input power/frequency. the UPS is just warning you that these fluctuations could potentially turn the UPS off if it has to enter bypass operation.

[Anonymous user]

Thanks for the feedback, what are the chances for entering in to UPS initiated unattended bypass operation.

We are getting the message quite frequently , approximately 10 warning everyday.

Thanks

[BillP]

Most UPSs go to bypass automatically when there is an overload or a fault (i.e. a power module and you have no redundancy which causes an overload, intelligence module failure) where the UPS cannot remain online. the technical answer is "when the inverter(s) cannot support the critical bus."

[Anonymous user]

Thanks a lot , We are fully depends on Generator Power.

Our power engineers confirmed that fluctuations are probable only between  + 1 and -1

Is there any method to check the frequency or voltage when the input power gets unstable .

Also , is there any place  set the parameters for voltage and frequency, please advice.

[BillP · Accepted solution]

hello again. one spot to check for power measurements is the data log via the web interface under the logs tab. you might need to check or adjust the logging interval so you could see data more frequently than every 10 minutes to see what is happening but keep in mind, the data log can only hold so much data because the card only has so much storage space. you could possibly configure data log rotation to upload to an FTP server so you could look at it over a certain amount of time.

as far as any configurations for this, in your screenshot, click on Power under Configuration and review those settings.