Hello Charles, Thank you so much for your help. Just run upsc and it is possible that input.transfer.low is the one because we used power regulator to bring down the power around 84v and then the ups sent the power loss message to PC. Do you think some others may take effect for the low voltage? Just have the upsc result attached.
Then I retried input.transfer.low, default.input.transfer.low, overwrite.input.transfer.low. Looks like it still can not write to those params. $ sudo upsrw -s input.transfer.low=70 -u * -p * ups Unexpected response from upsd: ERR READONLY $ sudo upsrw -s default.input.transfer.low=70 -u * -p * ups Unexpected response from upsd: ERR VAR-NOT-SUPPORTED $ sudo upsrw -s overwrite.input.transfer.low=70 -u * -p * ups Unexpected response from upsd: ERR VAR-NOT-SUPPORTED battery.charge: 100 battery.charge.low: 20 battery.runtime: 1087 battery.type: PbAc device.mfr: EATON device.model: Eaton 3S 550 device.serial: 000000000 device.type: ups driver.name: usbhid-ups driver.parameter.offdelay: 90 driver.parameter.ondelay: 120 driver.parameter.pollfreq: 30 driver.parameter.pollinterval: 2 driver.parameter.port: auto driver.parameter.vendorid: 0463 driver.version: 2.6.5 driver.version.data: MGE HID 1.31 driver.version.internal: 0.37 input.transfer.high: 142 *input.transfer.low: 84* outlet.1.desc: PowerShare Outlet 1 outlet.1.id: 2 outlet.1.status: on outlet.1.switchable: yes outlet.2.desc: PowerShare Outlet 2 outlet.2.id: 3 outlet.2.status: off outlet.2.switchable: yes outlet.desc: Main Outlet outlet.id: 1 outlet.switchable: no output.frequency.nominal: 60 output.voltage: 115.0 output.voltage.nominal: 115 ups.beeper.status: enabled ups.delay.shutdown: 90 ups.delay.start: 120 ups.firmware: 02 ups.load: 23 ups.mfr: EATON ups.model: Eaton 3S 550 ups.power.nominal: 550 ups.productid: ffff ups.serial: 000000000 ups.status: OL CHRG ups.timer.shutdown: 0 ups.timer.start: 0 ups.vendorid: 0463 Thank you again for your help. Kind of running out of ideas. Regards, Shen On Wed, Jun 4, 2014 at 9:24 PM, Charles Lepple <[email protected]> wrote: > On Jun 4, 2014, at 6:38 PM, Shen Chuan wrote: > > > $ sudo upsrw -s battery.charge.low=70 -u * -p * ups > > OK > > Not sure this does what you originally asked, though. > > Does upsc show any settings related to sensitivity? > > -- > Charles Lepple > clepple@gmail > > > >
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