search

networkupstools / nut

The Network UPS Tools repository. UPS management protocol Informational RFC 9271 published by IETF at https://www.rfc-editor.org/info/rfc9271 Please star NUT on GitHub, this helps with sponsorships!
https://networkupstools.org/
Other
2k stars 349 forks source link

CyberPower CP900EPFCLCD showing incorrect output voltage #581

Open owennelson opened 6 years ago

owennelson commented 6 years ago

Using the usbhid-ups driver my CP900EPFCLCD reports the output voltage as being between 260 and 270 - though it sits at 260 most of the time. The input voltage averages around 240 as would be expected.

Running the driver directly (/usr/local/libexec/nut/usbhid-ups -DDD -a ups) results in the following voltage information:

0.010678 Report[get]: (3 bytes) => 0f ef 00
0.010687 Path: UPS.Input.Voltage, Type: Feature, ReportID: 0x0f, Offset: 0, Size: 16, Value: 239
... 0.011178 Report[get]: (3 bytes) => 12 ef 00
0.011188 Path: UPS.Output.Voltage, Type: Feature, ReportID: 0x12, Offset: 0, Size: 16, Value: 260

I'm not entirely sure what to make of this, though it would appear that ef (239) is somehow being interpreted as 260?

Extra note: Configured through FreeNAS's UI and set to CP1000PFCLCD as it's the closest option - not sure if this makes any difference.

clepple commented 6 years ago

Probably the same as this issue: https://github.com/networkupstools/nut/issues/439

serfriz commented 3 years ago

Any update on this? My CyberPower CP1500PFCLCD shows an output.voltage of 142.0

alexruffell commented 2 years ago

My PR1000RTXL2U reports faulty measurements in battery and output voltages:

battery.charge: 100 battery.voltage: 2.4 battery.voltage.nominal: 22

However the LCD panel shows the voltage at around 48V. The correct input/output line voltage is 120V for where I am located but the UPS reports:

input.voltage: 122.0 input.voltage.nominal: 120 output.voltage: 253.0

and likely unrelated to this issue, it also reports:

ups.status: OL

which I am guessing means OverLoad, which it definitely is not.

flashydave commented 2 years ago

OL means ONLINE not OverLoad!

flashydave commented 2 years ago

As mentiondd above the output voltage issue IS identical to #439 and is now fixed subject to merging.

Regarding the battery voltage CPS are aware there are some issues and have fixed at least one of them on new production models. Sadly they said on cheaper models their firmware is not field upgradeable to fix existing users.

alexruffell commented 2 years ago

I wonder whether they include my $600-700 PR1000RTXL2U in that group. I will check to see if there is a firmware upgrade but as far as I recall I never saw one for the UPS itself, just the RMCard.

flashydave commented 2 years ago

I'm not sure the extent of any similarities between CPS products or code construction. I was trying to fix my CP900EPFCLCD battery and output voltage reporting and they confirmed back to me the points I made above.

techniker commented 1 year ago

I have the same issue here where the output voltage is reported as 260-262V.

flashydave commented 1 year ago

On 19:29, Mon 09 Oct 23, Bjoern Heller wrote:

I have the same issue here where the output voltage is reported as 260-262V. What version of software are you running as this was fixed some time ago.

If you like you can run the driver under debug where logging will show you that it has detected the erroneous MIB data reported by the UPS and corrected it.

That might tell us what is going on.

Reply to this email directly or view it on GitHub: https://github.com/networkupstools/nut/issues/581#issuecomment-1754225815 You are receiving this because you commented.

Message ID: @.***>

alexruffell commented 1 year ago

I have the same issue here where the output voltage is reported as 260-262V.

In my case it turned out to be a firmware bug as my UPS died weeks before the warranty was up and CyberPower replaced it. The brand new UPS (PR1000RTXL2U) never had the issue so it must have had something to do with the UPS' firmware and not the RMCARD205 as that one stayed the same. I think my old UPS had firmware 1.6xx and the new one came with 1.9xx (but I'd have to check to be sure).