YASKAWA iC9000 Series - Page 66

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4.4 Memory Management
(5) Fix memory Overflow
If, during operation or when starting up the CPU, the error indication occurs that the memory of the overlay file
system in the parametrization memory has overflowed, the CPU can be restarted via Safe Mode as follows:
1. Switch off the power supply of the CPU.
2. Set the S1 DIP switches S1-1 and S1-2 under the front flap to the following position:
3. Switch on the power supply of the CPU again.
The CPU starts in Safe Mode.
Refer to the section below for more details on Safe Mode.
4.7 Safe Mode on page 71
Here, a memory area reserved exclusively for Safe Mode is enabled, which allows the CPU to restart in
the event of a memory overflow.
At Safe Mode the CPU starts with a default project, but your user program is still present in the file
system.
4. Check your user program for files on the file system that cause the system to overflow,
such as log files, recipes, motion data.
5. Use an SSH client to access the file system and delete the causing files if necessary.
Then start in Standard Mode again.
6. For this, switch off the power supply to the CPU.
7. Set the S1 DIP switches S1-1 and S1-2 to the default position:
8. Switch on the power supply of the CPU again.
The CPU starts in Standard Mode again. If a project was loaded in Safe Mode, it is executed in RUN
operating mode.
Terminal Setting Action
S1-1 ON After Power ON the CPU starts in Safe Mode.
S1-2 OFF
Terminal Setting Action
S1-1 OFF After Power ON the CPU starts in Standard Mode - default
setting.
S1-2 OFF