Analysis And Troubleshooting Of Alarms Displayed On Console - Zapi ACE2 User Manual

8.17 Analysis and troubleshooting of alarms displayed on console

1) FLASH CHECKSUM
Cause:
After Key-on the software verifies the integrity of program stored in the flash
memory, if the verify has a negative result this alarm is generated.
Troubleshooting:
The problem is in the microcontroller flash memory, which could be
damaged, or in the program stored inside, which could be corrupted.
Try to program the logic again, if the alarms is still signalled the problem is in
the microcontroller. Replace the ACE logic board.
2) ANALOG
Cause:
This alarm occurs when the A/D conversion of the analog inputs gives frozen
value, on all of the converted signals, for more than 400msec. The goal of
this diagnosis is to detect a failure of the A/D converter or a problem in the
code flow that omits the refreshing of the analog signal conversion.
Troubleshooting:
If the problem occurs permanently it is necessary to substitute ACE logic
board.
3) WRONG SET BATTERY
Cause:
At start-up, the controller checks the battery voltage and verify it is within a
window around the nominal value.
Troubleshooting:
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4) CAPACITOR CHARGE
Follows the charging capacitor system:
AF2ZP0CL - ACE2 - User Manual
Check that the controller SET BATTERY parameter value matches the
battery nominal voltage.
Check that TESTER MENU / BATTERY VOLTAGE parameter shows
same value as the battery voltage measured with a voltmeter. If it does
not match, then do an "ADJUST BATTERY" function.
Replace the battery.
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