IAI America XSEL-KET - Manual (Page 77)

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Part 1 Installation
INTELLIGENT ACTUATOR
(3) Replacement procedure for system-memory backup battery (CR2032)
Backing up the system memory
If “Other parameter No. 20, 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 panel board:
 Position data
 SEL global data (flags, integer/real variables, string variables)
 Error lists
Always follow the procedure below when replacing the system-memory backup battery:
Note: If the system-memory backup battery is removed while “Other parameter No. 20, Backup-battery
installation function type” is still set to “2” (installed), the data stored in the SRAM will be lost.
Note: So that your position data can be restored even after the SRAM data has been cleared, use the
PC software to save the position data to a file before removing the battery.
For the method to save position data to a file, refer to 6, “Position Data Edit Window” in the
“Operation Manual for X-SEL PC Software.”
[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, 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.
For the method to save position data to a file, refer to 6, “Position Data Edit Window” in the
“Operation Manual for X-SEL PC Software.”
4. Change “Other parameter No. 20, Backup-battery installation function type” to “1” and transfer the
setting to the controller, and then perform a flash ROM write. (The position data will be saved to
the flash ROM.)
* Confirm that the flash ROM writing process has completed.
For the method to edit parameters, refer to 8, “Parameter Edit Window” in the “Operation Manual
for X-SEL PC Software.”
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. The battery is mounted on the panel board and can
be removed using two small screwdrivers or the like. When removing the current battery and
installing a new one, pay due attention to the following points (SRAM data will be deleted 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.