MoTeC ACL VIM - Manual (Page 35)

MoTeC Installation & Configuration 31
Power Wiring
The ACL uses a file system to store the logged data and needs to be
shut down correctly to ensure data integrity. The ACL should not have
the power disconnected without first shutting it down. Doing so is the
equivalent of just pulling the battery out of your laptop to turn it off
rather than using the shut down menu. Incorrectly powering down the
ACL may corrupt the data on the memory card and should be avoided.
The ACL is ready to be powered off when all LEDs are off.
Note The shut down process can take up to 13 seconds.
Pin 2 of the ACL is the power pin. When the system is starting up,
running or shutting down, it will draw its power from this pin. Pin 22 is a
switched input that is used to signal to the ACL to begin startup or shut
down. If pin 22 has more than 8 volts the ACL will start up, if it is less
than 8 volts it will shut down.
One method of wiring this is as follows:
Wire the ACL constant power (pin 2) to the switching side of the master
switch, then use a 3 position switch as the ignition switch for the
vehicle.
Wire the 3 position switch as follows:
Pos (1): All off
Pos (2): Ignition off, ACL (pin 22) on
Pos (3): Ignition on, ACL (pin 22) on
This setup allows for the ACL to remain on when cranking an engine
without ignition power, and also allows for proper shut down by allowing
the ignition to be turned off without turning the ACL off.
ACL Setup
All configuration is done using ACL Manager, including configuration of the
logging, communications, alarms, display device, VIMs and much more.
ACL Firmware
The firmware controls the operation of the ACL and can be updated as new
versions become available. The firmware is included with ACL Manager.
To send new firmware to the ACL, in ACL Manager, select Online | Upgrade
ACL Version from the main menu.