BESTUPS(8)                        NUT Manual                        BESTUPS(8)



NAME
       bestups - Driver for Best Power / SOLA (Phoenixtec protocol) UPS
       equipment

NOTE
       This man page only documents the hardware-specific features of the
       bestups driver. For information about the core driver, see
       nutupsdrv(8).

SUPPORTED HARDWARE
       bestups was designed to monitor Best Power UPS hardware like the
       Fortress, Fortress Telecom, Axxium Rackmount and Patriot Pro. It also
       recognizes and supports SOLA units such as the 325, 520 and 620. In
       addition, the Best 610 is supported using the `ID' option.

       Other UPS hardware using the Phoenixtec protocol should also work, but
       they will generate a warning since their battery information is not
       known.

       This driver does not support some older Best/SOLA units.

EXTRA ARGUMENTS
       This driver supports the following optional settings in the
       ups.conf(5):

       nombattvolt=num
           Override the battery float voltage which is normally determined by
           asking the hardware. This is useful if your UPS constantly reports
           battery.charge values just below 100% even when it's completely
           charged.

           If you have this problem, set this to whatever battery.voltage
           reports when the UPS is known to be completely charged with a good
           battery.

           The author's Best Fortress 750 uses nombattvolt=27.4.

       battvoltmult=num
           Multiply the reported battery voltage by this number. Some devices
           report only a fraction of the total battery voltage.

           For example, the SOLA 610 700VA UPS (with a 24V battery) reports
           the single cell voltage (about 2.27V when fully charged). In this
           particular case you can set battvoltmult = 12 in ups.conf(8) to fix
           this.

       ID=string
           Set the Identification response string. This should only be used
           with hardware that supports the Phoenixtec protocol status inquiry
           commands, but not the "ID" command, such as the Best/SOLA 610.
           Format of the ID string is: AAA,BBBB,CCC,DDD,EE.E,FF.F

           AAA is the three-character identification for the UPS model.

           BBBB is the output power in VA (volt amperes). B is an integer
           number ranging from 0 to 9.

           CCC is the Nominal Input Voltage. C is an integer number ranging
           from 0 to 9. The unit is Volts AC.

           DDD is the Nominal Output Voltage. D is an integer number ranging
           from 0 to 9. The unit is Volts AC.

           EE.E is the Battery Voltage that will cause the UPS to shut itself
           off. E is an integer number ranging from 0 to 9. Then unit is Volts
           DC and a decimal point is present.

           FF.F or FFF.F is the Battery Voltage at full charge. F is an
           integer number ranging from 0 to 9. Then unit is Volts DC.
           Typically, for 700VA, 1KVA and 1.5KVA units, the format is FF.F.
           For 2KVA and 3KVA units, the format is FFF.F.

           Example: a Best 610 1.5KVA unit would use the string
           "610,1500,120,120,10.0,48.0".

BUGS
       The battery charge percentage value (in battery.charge) is derived from
       the voltage data that the UPS returns, since the UPS doesn't return
       that value directly. On some hardware, the charge will remain at 100%
       for a long time and then drops quickly shortly before the battery runs
       out. You can confirm from the battery.voltage readings that this is a
       problem with the UPS and not this driver.

       Similarly, the float from the charger in some models forces the battery
       charge percentage back up to 100% immedately after the UPS goes back
       on-line, so you can't tell when it is really recharged.

       Finally, some models give one value for the battery's nominal voltage
       and yet actually have a nominal voltage slightly below that. This leads
       to things such as the perpetual 98.7% charge on the author's Fortress
       750, even when it's been charging for weeks. You can use nombattvolt=
       in ups.conf(8) to fix this.

AUTHOR
       Russell Kroll, Jason White

SEE ALSO
   The core driver:
       nutupsdrv(8)

   Internet resources:
       The NUT (Network UPS Tools) home page: http://www.networkupstools.org/



Network UPS Tools                 10/09/2011                        BESTUPS(8)
