Specifications

100
3.8.3 Low Voltage Monitoring
Four levels of the low voltage monitor control are provided for the terminal.
Table 3.66
Level Description Action Next Startup
VDET1 Warning against low voltage
of the battery pack
Issues warning message
for low voltage of the
battery pack
-
VDET2 Turning off the power due to
low voltage of the battery
pack
Turns off the power. Resume (with warning at time of
startup)
VDET3 Emergency turning off the
power due to low voltage of
the battery pack
Forces the terminal to
turn off the power.
Warm boot (with warning at time of
startup)
VDETCF Turning off the power due to
low voltage of card
Turns off the power. Resume (with warning at time of
startup)
Battery Pack
The following shows statuses and levels available for the battery pack (HA-A20BAT or
DT-5025LBAT). Normally the battery status is checked once every five seconds. However, it will
be performed every second when the power management property is displayed. Taking last
immediate ten data of the power voltage from the AD converter, its average is calculated to
classify the status in three levels, either “Almost exhausted (10 % of the capacity or less)”, or
“Low (30 % of the capacity or less)”, or “O.K. (30 % of the capacity or more)”. The level is 10 %
of the capacity when VDET1 occurs.
Table 3.67
Status/Level Notation Description
External External Power by AC adaptor is being supplied, and charging the
battery pack is complete.
Recharge Charging Power by AC adaptor is being supplied, and charging the
battery pack continues.
Status
Normal Main battery Power by the battery pack is being supplied.
1 Good The battery pack has been fully charged or has a sufficient
capacity.
2 Low The battery voltage level is half or less.
Level
3 Very low “VDET1” has been detected.