Results 1 to 3 of 3

Thread: Backvolts, volts1 & volts2

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. #1

    Backvolts, volts1 & volts2

    I have a 5500T with a TCW 6ah backup battery. When I download the logs the system records three voltages, backvolts, volts 1 and volts 2.

    1. Where is backvolts measuring voltage? Given my configuration this information is not displayed on the EFIS, at what point do I become concerned by its values?

    2. Is it correct that volts 1 is measuring the voltage at the main power connector at the EFIS (pin 1)? Therefore the main system voltage of the device delivering power (battery without the alternator or alternator when it is on?)

    3. What is volts 2 actually measuring? Is it voltage potential at the backup power pin (14 on the expansion connector) or is it the information from the IBBS battery monitor (pin 13 on the expansion connector)? When the main power is turned off and the EFIS switches to backup power Battery xx.x Volts is displayed on the EFIS in a warning box. That voltage is not the same as Volts 2 by about 0.5 to 1.0 volts, which implies measurement at different locations.

    4. The engine data logs also contains values for AMPs_SHUNT and AMPs_HALLEFFECT. I do not use a Hall Effect Sensor. Are the values recorded in the data logs for the Hall_Effect Sensor just data "noise."

    Thanks
    Scott
    Last edited by sahrens; 08-21-2019 at 02:15 PM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •