Amada 1-288-01, Operation Manual, Page: 36 / 144

CHAPTER 3: SYSTEM CONFIGURATION
HF28 DC RESISTANCE WELDING SYSTEM
3-4 990-372
1. Schedule Lock
This function prevents unauthorized users from selecting any weld schedule other than the displayed
schedule, and from changing any weld energy/time parameters within the weld schedule.
2. System Lock
This function prevents unauthorized users from changing any of the options on the main menu. It also
prevents unauthorized users from changing weld energy/time parameters within weld schedules 1-99.
Note that schedule 0 is a “scratchpad” and can still be edited when the System Lock is ON. This
security level allows you to select different schedules from the front panel.
3. Calibration
This function prevents unauthorized users from modifying any of the calibration settings.
NOTE: All security options use the same procedure to enter a security code and to turn the security
code OFF.
1. Press the
1
key to select
SCHEDULE
LOCK
. This will bring up the
CHANGE
STATUS
screen, as shown at the right.
2. Enter a 7-digit number, from 0000001
to 9999999 , in the code field, and then
enter a period. This will bring up the
SYSTEM SECURITY
menu screen, this
time with
SCHEDULE LOCK: ON
.
<CHANGE STATUS>
PASSWORD
:
– – – – – – –
NUMBERS for code followed by [.]
With
ON
selected, all other weld schedules are locked out and cannot be modified or used for
welding.
3. To unlock the Control from security protection, return to the
CHANGE STATUS
screen and
enter the code that you entered in Step 2. This will bring up the
SYSTEM SECURITY
menu
screen, this time with
SCHEDULE LOCK: OFF
.
4. If you forget the security code and wish to unlock the Control from security protection:

Return to the
CHANGE STATUS
screen.

Enter a security code of
280
.