Booting and power-up self-test, The boot menu, Caution – Yaskawa SmartTrac AC1 User Manual
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SMART TRAC AC1
4-14
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Smart Trac AC1 Installation Technical Manual TM 3554-000
Booting and Power-Up Self-Test
Immediately after power-up of the Smart Trac AC1, the validity of the operating 
system is checked. The Smart Trac AC1 BIOS (Basic Input Output System) 
performs a self-test to determine the integrity of RAM, flash memory, system 
timers and interrupts, among other checks. Any detected faults appear on the 
Smart Trac AC1 digital operator. 
Next, the system loads any installed drivers. It checks the validity of the user 
program before starting its execution. 
Once drivers are installed and the user program is validated, the system 
performs according to the user program, responding with diagnostics and error 
handling as necessary. 
NOTE: If communication with the Smart Trac processor and its card stack is 
not established within 7 seconds of power up or within 2 seconds of no data 
transfers, it will shut down. The LEDs on the digital operator will flash, 
indicating this lack of communications. 
The Boot Menu
CAUTION
CAUTION
Do not change the Boot Menu without understanding the 
implications of your actions or unless instructed to do so by a 
MagneTek engineer. The menu does not typically require any 
changes. Items which may be changed are: setting the system clock; 
TCP/IP address; or checking the firmware version. Failure to comply 
may result in damage to your Smart Trac AC1 or other equipment. 
Several functions are available by pressing the MENU key within the first 2 
seconds of the boot
. Figure 5. The Smart Trac AC1 Boot Process."
shows the
boot menu and the functions available.
You may scroll through the menu selections using the Up and Down arrow keys 
on the Digital Operator. Pressing ENTER  while at any one of the menu 
selections causes the submenu to display. Some submenus contain entries you 
may scroll through using the Up and Down arrow keys. You may change values 
of these entries using procedures for those submenus. 
To return to the previous menu level, press ESC.
To stop the boot menu from displaying and resume starting the Operating 
System, press ESC until a first level menu appears. Scroll using the up and down 
arrow keys until the message appears "Start System?". Press ENTER and the 
Operating System should resume loading. 
NOTE: The message "Starting OS" can be used as output at the J5 (serial) 
connector if desired. The message is sent after the initial 2 second timeout as 
indicated in the "Smart Trac AC1 Boot Process" flow chart.