Power Management Utility Program; Power Management Parameter Settings - Advantech TREK-550 User Manual

When the system is ON, and
(1) the car battery voltage (DC input) is lower than LOW_THRESHOLD (at T
(2) and this situation lasts for LOW_DELAY,
, then the system will send Power Button signal to OS (at T
At this time (T7), the LOW_HARD_DELAY is starting to countdown.
Once LOW_HARD__DELAY is over, the system power is removed abruptly.
LOW_DELAY is ranged from 1 to 3600 seconds.
LOW_HARD_ DELAY is fixed with a value of 60 seconds.
Note:
How the low-battery event is raised or canceled:
The minimum value on LOW_DELAY parameter is 1 second. If the car voltage remains lower
than the LOW_THRESHOLD in the duration of LOW_DELAY, the low-battery event will be
raised and immediately send a power button press signal to OS.
During the duration of LOW_DELAY, if the car battery voltage is back to be higher than
LOW_THRESHOLD, the LOW_DELAY will be reset to predetermined value and stop count
down.
Therefore, the LOW_DELAY parameter acts as a filter to prevent incorrect low-battery-event
from happening.
6.3.2

Power Management utility program

Execute IMCDemo.exe file, see the icon below.
6.3.3

Power Management Parameter settings

The parameters for power management on TREK-550 could be set by Demo utility (see the
image below) or SDK/API.
TREK-550 User Manual
www.advantech.com
) to start the shutdown process.
7
39
)
6