Appendix 9. Precautions for Use of Peripheral Devices and Commercially Available Devices
269
Peripheral device
Precautions
USB
keyboard
MITSUBISHI will not provide performance guarantee and maintenance for
commercially available USB keyboard. Commercially available devices may not be
compatible with MITSUBISHI units or suitable for FA environment for temperature- or
noise-wise. In the case of using it, careful performance check must be required by
the machine tool builder.
Commercially available USB keyboard is only available when developing applications
or during maintenance. It is not designed to be integrated into the unit.
Commercially available USB keyboard is susceptible to noise, etc. and may cause a
malfunction in the unit that may lead to an accident. Do not use it while the machine
is operated.
The performance of USB devices under plug-and-play is not guaranteed. When
inserting/removing USB devices, always turn the MITSUBISHI device's power OFF.
USB1 on the back of the display unit is used for mounting the MITSUBISHI keyboard
unit.
USB mouse
Same as above
Other USB devices
MITSUBISHI will not provide performance guarantee and maintenance for
commercially available USB printer, USB floppy disk, USB memory, USB hub,
USB-CDROM, USB-DVDRAM, and other USB devices. Commercially available
devices may not be compatible with MITSUBISHI units or suitable for FA
environment for temperature- or noise-wise. In the case of using it, careful
performance check must be required by the machine tool builder, and necessary
noise countermeasures, such as executing EMI countermeasures or adding the
ferrite cores, must be taken.
Other restrictions are the same as for USB keyboard.
Other precautions on
USB
The maximum USB bus power (5VDC) that can be supplied from USB1 or USB2
connector on the back of the display unit is 500mA each. Also, the maximum USB
bus power (5VDC) that can be supplied from the front IC card USB connector is
100mA.
When connecting a commercially available USB device that requires power
exceeding the maximum current, select the one of which power can be supplied from
an outside source. However, MITSUBISHI will not provide performance guarantee
and maintenance for commercially available USB devices. Commercially available
devices may not be compatible with MITSUBISHI units or suitable for FA
environment for temperature- or noise-wise. In the case of using it, careful
performance check must be required by the machine tool builder.
About shutting down Always turn the power OFF after confirming the normal shutdown has been
performed. Failure to observe this could cause a malfunction. If the normal shutdown
failed, contact your local service department without turning the power OFF.
Hard disk
Mount the hard disk unit within ±15° with the cable lead-out side facing straight up.
Do not turn the power OFF during access to the hard disk. Failure to observe this
could cause a malfunction. In case of emergency, always perform backups by having
your important data duplicated, etc. as MITSUBISHI will not guarantee the broken or
lost data. Be sure to inform this matter to the end users.