Mitsubishi Electric GT11 User Manual page 4

[DESIGN PRECAUTIONS]
Incorrect operation of the touch switch(s) may lead to a serious accident if the GOT backlight is gone
out.
When the GOT backlight goes out, the POWER LED flickers (green/orange) and the display section
turns black and causes the monitor screen to appear blank, while the input of the touch switch(s)
remains active.
This may confuse an operator in thinking that the GOT is in "screensaver" mode, who then tries to
release the GOT from this mode by touching the display section, which may cause a touch switch to
operate.
Note that the following occurs on the GOT when the backlight goes out.
•The POWER LED flickers (green/orange) and the monitor screen appears blank
Do not bundle the control and communication cables with main-circuit, power or other wiring.
Run the above cables separately from such wiring and keep them a minimum of 100mm (3.94in.)
apart. Not doing so noise can cause a malfunction.
Do not press the GOT display section with a pointed material as a pen or driver.
Doing so can result in a damage or failure of the display section.
[MOUNTING PRECAUTIONS]
Be sure to shut off all phases of the external power supply used by the system before mounting or
removing the GOT to/from the panel.
Not doing so can cause the unit to fail or malfunction.
Be sure to shut off all phases of the external power supply used by the system before mounting or
removing the option function board on to/from the GOT.
Not doing so can cause the unit to fail or malfunction.
When installing the option function board or battery, or operating the reset switch, wear an earth
band etc. to avoid the static electricity.
The static electricity can cause the unit to fail or malfunction.
- 2
A
WARNING
CAUTION
WARNING