[Nut-upsuser] Some issues with UPS Forza SL-1001
nestor at epca.com.ve
Thu Sep 4 04:28:00 UTC 2008
Hi to everybody. Some days ago, I bought an UPS by Forza Power Technologies,
model SL-1001. This Forza SL-1001 is line-interactive, has 14,4 A/h charge
and is rated at 1000VA. Before, I had a TrippLite Omni 500 (or something
like that), a simple contact-closure UPS, and I used nut with the simple
genericupsdriver, so I'm new with this type of UPSs.
NUT doesn't list Forza as a supported UPS so I first tried to use
the "marvelous software" inside, the infamous WinPower. As their name
states, only works well in Windows, because in Linux it only recognizes
RS232-based UPS, but this SL-1001 is detected as a HID device.
Google brings me to this mail list and I tested using the megatec_usb driver,
following recomendations from a mail here. The driver works perfectly -
almost. I have some problems with it. I hope you can help me or enlight me
to cure, at least.
* First: the megatec_usb driver takes sooo long to detect the UPS - almost 70
seconds to say "yes, this UPS talks megatec_usb protocol", so I needed to
raise the maxstartdelay to 80. It's possible to reduce this time?
* Second: variables detected. Look at the listing:
Nut states battery is at 87,5% but Winpower says 100%. In fact, with nut,
the battery doesn't charge above 95%. Using megatec_ups -DDDDDD gave me this
voltage ranges: 13,7V-9,7V, and the maximum battery voltage I ever seen is
13,5V. Is WinPower using relaxed values? Is the UPS needing a battery
recalibrate? I just unpacked and connect it...
This values are really forced in the ups.conf file.
According with this, this UPS is standby type, so it's incorrect (check
* And the third and last: if I send a upscmd ups-parallax test.battery.start,
the upsd loss communications with the megatec_usb driver, and only restore
communication when the battery test ends. Why?
Thanks in advance.
EPCA Sistemas, C.A.
Caracas - Venezuela
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