fentonups(8)
NAME
- fentonups - Driver for Fenton Technologies (Megatec proto
- col) UPS equipment
NOTE
- This man page only documents the hardware-specific fea
- tures of the fentonups driver. For information about the core
- driver, see nutupsdrv(8).
SUPPORTED HARDWARE
- fentonups primarily supports Fenton Technologies models
- such as the PowerPal, PowerPure and PowerOn lines. Due to the
- common heritage of UPS equipment, it generally supports other
- hardware that also uses the Megatec protocol.
- At the time of this writing, the PowerGuard PG-600 and
- PowerCom SMK-800A are recognized and supported. Other Megatec
- units should also work, but they will generate a warning since
- their battery information is not known.
EXTRA ARGUMENTS
- This driver supports the following optional settings in
- the ups.conf(5):
- lowbattvolt=decimal
- Sets a user-defined battery voltage under which the
- driver will consider that the UPS is on "low battery" condition
- when running on battery. This allows initiating a system shut
- down before the UPS signals a low battery status by itself, and
- may be useful for some UPSes that don't have enough runtime left
- for properly shutting down the system when they start signaling a
- "low battery" status.
BUGS
- The battery percentage is derived from the voltage data
- that the UPS returns, since the UPS doesn't return that value di
- rectly. 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 re
- ally recharged.
- Dead/broken batteries can't be reported reliably. If your
- UPS kills the load instantly or within seconds of starting the
- inverter, your batteries probably need to be replaced. Recently,
- a pair of 3.5 hour outages here (thanks CPS!) finally killed my
- batteries. You may have to run a manual test from the front pan
- el before the "replace battery" LED will light.
AUTHOR
Russell Kroll, Michel Bouissou
SEE ALSO
- The core driver:
- nutupsdrv(8)
- Internet resources:
- The NUT (Network UPS Tools) home page: http://www.net
- workupstools.org/
Tue May 03 2005