YASKAWA JEPMC-MP2300-Y Series User Manual page 276

5 Outline of Motion Control Systems
5.4.2 Execution Procedure for Self-configuration Using the DIP Switch
( 2 ) Self-configuration after Adding Devices Such as SERVOPACKs
If register allocations have been changed manually since the last time self-configuration was executed, the
register allocations will return to the default settings when self-configuration is executed again. If the SVR is
set to disabled (UNDEFINED), the setting will return to enabled. To keep the changed register allocations,
do not use self-configuration, but manually make the register allocations for added devices and refresh the
definitions file.
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For self-configurations after having added network devices such as SERVOPACKs, leave the switch
INIT to OFF in step (2) of the above procedure, then perform the rest of the steps.
For network devices with existing definitions files, correctly connect and turn ON the power to the
devices when executing self-configuration.
INIT Switch and RAM Data
RAM data will be cleared if the INIT switch on the DIP switch on the MP2300 Basic Module is turned ON
and the power is turned ON. Flash memory data is read when the INIT switch is turned OFF and the power
is turned ON. Therefore, always save data to the MP2300 flash memory before turning OFF the power
when writing or editing programs.
For information on how to save data to flash memory, refer to 2.1.5 Starting and Preparing MPE720 on
page 2-7.
Turning OFF Power After Executing Self-configuration
Do not turn OFF the 24-VDC power supply to the MP2300 after executing self-configuration until the defi-
nitions data has been saved to flash memory in the MP2300. If the power is turned OFF somehow before
the data is saved to flash memory, execute self-configuration again.