<Causes>

1. The storage device is not supported.
2. The file system of the storage device is not supported.
3. The error status is set in $s497 (or $s1035 when the USB-A port is used).
4. The storage device is faulty.
5. The access port setting of the V series is wrong.

<Solutions>

1. The following storage devices can be used with the V series.
   

   Type	Capacity	File System
   SD card	2GB max.	FAT, FAT32
   SDHC card	4 to 32GB	FAT32
   USB flash drive	32GB max.	FAT, FAT32

   
   
   
2. Only storage devices with FAT or FAT32 file systems can be used with the V series.
   Check the file system using a PC and if any other file system is used, format the storage device.
   
   
3. Check the values in system memory $s497 and $s1035. Any value other than "0" indicates an error status.
   When this system memory address is assigned to a numerical data display part, monitoring is possible.
   For more information about error codes, refer to "Storage Status".
   
   
4. Check if it is possible to access the storage device from the PC.
   If not, use a different storage device.
   
   
5. There are two storage device connection ports: the built in SD card slot and USB-A port. Set the port to access using V-SFT-6.
   [Setting location]
   [System Setting] -> [Other] -> [Storage Setting] -> [Storage Connection Target]