Automatic shutdown
Page 90 of 122
DLT-V83 Series Manual V1.50
Advantech-DLoG
14.
Automatic shutdown
14.1.
Functional description
The DLT-V83 is equipped with an automatic shutdown module.
If wired up accordingly, the DLT-V83 conveniently switches off together with the vehicle’s ignition
(NOTICE: Ignition signal with DC devices only). As disconnecting the power supply during
operation can lead to data loss, the operating system needs to be shut down normally using the
appropriate hardware and software installed on the system when the ignition is switched off.
The DLT-V83 is connected to the vehicle with three supply cables.
DC+
and
DC-
are directly
connected to the power supply of the vehicle, the connection is of course run through fuses. The
supply voltage connected is then linked to the DLT-V83’s ignition input via a switch, for example,
the key switch of the ignition (also with a fuse).
14.2.
Sequence
When the vehicle ignition is turned on or the DLT-V83 <Power> button is pressed, the DLT-V83
checks its internal temperature and runs a test to confirm that the automatic shutdown function is
working.
If this check of the environmental conditions is successful, the DLT-V83 starts the operating
system normally.
Once these checks have been successfully completed, the DLT-V83 starts the operating system.
No environmental conditions (e.g. the internal temperature of the device or the state of the
ignition input) are checked for three minutes during startup.
After three minutes, the DLT-V83’s internal temperature and the state of the ignition input are
constantly monitored.
If the DLT-V83’s internal temperature reaches a critical level, a controlled shutdown of the
operating system is carried out. The computer will remain switched off until the temperature is
once again within the permitted range.
If the ignition input is
grounded or isolated during normal operation of the DLT-V83, the device
will switch to a delayed shut-off state.
The device will continue to operate normally in this state until the shut-off delay (e.g. 15 minutes)
has elapsed.
If the ignition is turned on again during this shut-off delay, the DLT-V83 will revert to a normal
operational state.
Once the shut-off delay (after run time) has elapsed, the operating system will shut down and the
device will automatically shut down (e.g. after three minutes or a signal from the operating
system).
