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RN214 NAS not shutting down with UPS power is low or zero
My UPS seems to have started having problems but it shown up a more serious challenge with my RN214 (on latest firmware) - it's not shutting down when the UPS level drops below the threshold. I've ha...
Sandshark wrote:
StephenB wrote:
https://networkupstools.org/docs/user-manual.pdf wrote:
The exact behavior depends on the specific device, and is related to:
• battery.charge and battery.charge.low
• battery.runtime and battery.runtime.lowIt doesn't sound like it triggered by a particular UPS command (at least not in all cases).
Those are the things you can normally select to determine when the UPS will send the shut-down command.
Well, as I said the manual isn't very clear on tnis point. But my impression from the code is that the NUT software is first translating the UPS messages into it's own set of generic state parameters, and then monitoring that state. I think it then issues it's own shutdown command based on the state changes - at least for some UPS. But I decided against spending the time to figure out exactly what is was doing. There is quite a bit of vendor-specific code in it.
Maybe try a test - connect the NAS to main power, but still monitor the UPS. Then put another load on the UPS so the battery will drain. A fan, hair dryer, vacuum cleaner - anything that uses a fair amount of power.
Then unplug the UPS from the power, and let it completely drain (until the load shuts down). Note the time when this happens. See if the NAS also shuts down, and if it does, what time that happened.
Hi Stephen, tests done and everything seems to be working. The NAS shuts down correctly at the right point. The underlying problem is now diagnosed, the battery in the NAS was failing so I was seeing the messages triggered as it was failing to hold charge, rather than becuase of power interruptions.
Thanks for your prompt help and advice, much appreciated.
- Richard.
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