13 External Memory Device
13.1 Memory Device
13-2
HW1485509
HW1485509
13.1.4 Rules for USB Connectors and USB Memory Sticks
This section contains rules and instructions on how to safely use USB
connectors on the CPU board (JANCD-ACP01) and memory sticks.
1. Do not insert/remove the USB memory stick on the YRC
Controller when control power is ON
A device recognition process is executed when an USB memory stick
is inserted. Do not insert or remove an USB memory stick when the
control power supply is turned ON. Failure to observe this rule may
affect the manipulator’s cycle time.
2. Do not disconnect control power or insert/remove an USB
memory stick during file access
Failure to observe this rule may result in FAT file system corruption
and data loss.
3. Operating temperature range of USB memory stick
Use a USB memory stick that is guaranteed to function correctly in the
same temperature range as the YRC Controller.
4. USB memory stick’s falling off by the YRC Controller vibration
To prevent the USB memory stick from falling off due to vibrations from
the YRC Controller, consider countermeasures, such as fixing the USB
stick with jigs to keep it in place.
5. USB connector on the front surface of the CPU board
(JANCD-ACP01)
The USB connector on the front surface of the CPU board
(JANCD-ACP01) accepts only the USB memory stick. Do not connect
a USB hub or other USB devices.
6. Capacity of USB memory stick
The capacity of the memory stick is up to four Gigabyte in size for the
CPU board, and no limit for the Smart Pendant.
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