<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Hi,</div>
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<div>I connected my UPS (APC BR550GI) with an RasPi2 with Raspbian and nut (build from current master <a class="commit-tease-sha mr-1" href="https://github.com/networkupstools/nut/commit/e27f1f90f3311a9d45bd77ef1bee86426de05bd8" target="_blank">e27f1f9)</a> using usbhid-ups.</div>
<div>Nut is properly seeing the UPS and recognizes OB. Even the shutdown with `upsmon -c fsd` runs fine at first.</div>
<div>But when I reconnect the main to the UPS after both went off, the UPS comes back alive, but on "OL DISCHRG" (display showing that power comes from battery, so the nut status seems to be valid ... somehow...). Short time later (seconds) the UPS restarts again, killing the RasPi. When UPS and RasPi comes up again, everything is fine and UPS is "OL CHRG".</div>
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<div>So currently the sequence is:</div>
<div>1. Main power goes off</div>
<div>2. UPS and nut goes "OB DISCHRG"</div>
<div>3. I enter `upsmon -c fsd`</div>
<div>4. System shuts down and sending `upsdrvctl shutdown`</div>
<div>5. System seems to halt and about one minute later the UPS shuts down</div>
<div>6. Main power comes back</div>
<div>!!! 7. UPS comes up, display shows power comes from battery, RasPi comes up, nut showing "OL DISCHRG" !!!</div>
<div>8. Seconds later the UPS reboots, killing the RasPi</div>
<div>9. UPS and RasPi are up and running again - "OL CHRG"</div>
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<div>The UPS is set to "offdelay=5" and no ondelay</div>
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<div>The output of `usbhid-ups -DD -a ups` is attached.</div>
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<div>Can you help me to prevent this unexpected shutdown of the UPS? Currently it'd be more safe to use the USP without nut and just drain the battery :-(</div>
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<div>Sincerly,</div>
<div> Stefan</div></div></body></html>