IAI America XSEL-KX - Manual (Page 53)

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Part 1 Installation
4.
Replacement Procedure of System-Memory Backup Battery (CR2032) for J Type (Compact Type)
[Absolute specification]
In the case of a compact controller of absolute specification, an absolute reset must be performed
after replacing the system-memory backup battery. (Since all cables and absolute-data backup
battery are disconnected from the controller during the replacement procedure, the absolute data will
be destroyed.)
[Memory backup]
If “Other parameter No. 20, System-memory backup battery installation function type” is set to “2”
(installed), the following SRAM data in the X-SEL Controller will be backed up by the system-memory
backup battery on the main CPU board:
• Position data
• Coordinate system data
• SEL global data (flags, integer/real variables, string variables)
• Error lists
Therefore, the above SRAM data will be destroyed if the system-memory backup battery is removed
when “Other parameter No. 20, System-memory backup battery installation function type” is set to “2”
(installed). For this reason, always follow the procedure below when replacing the system-memory
backup battery:
[Replacement procedure for system-memory backup battery]
[1] Turn on the controller power.
[2] Record (write down) the current setting of “Other parameter No. 20, System-memory backup
battery installation function type.” (This will be used when reverting the parameter to its original
setting following the replacement of system-memory backup battery.)
[3] If the PC software is installed in your PC, save the position data to a file using the PC software.
The data will be used as a backup in case the SRAM data saved to the flash ROM fails.
[4] Change “Other parameter No. 20, System-memory backup battery installation function type” to
“1” and transfer the setting to the controller, and then perform a flash ROM write. (The point data
will be saved to the flash ROM.)
* Confirm that the flash ROM writing process has completed.
[5] Perform a software reset to restart the controller. (The SEL global data and error lists will be
saved to the special area in the flash ROM.)
[6] When the controller has been restarted, turn off the power.
* Once the controller has been restarted, be sure to keep the power on until the initialization
sequence number is no longer displayed on the panel window (while “InXX” is displayed
following “8888”; XX indicates a number).
[7] Replace the system-memory backup battery. When removing the current battery and installing a
new one, pay due attention to the following points (SRAM data will be destroyed if steps 1
through 6 are not performed properly):
• Do not damage the board patterns.
• Do not short the circuits.
• Connect the battery in the correct polarities.