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[DESIGN PRECAUTIONS]
DANGER
z Do not use the GOT as the warning device that may cause a serious
accident.
An independent and redundant hardware or mechanical interlock is required
to configure the device that displays and outputs serious warning.
Failure to observe this instruction may result in an accident due to incorrect
output or malfunction.
z 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 display section turns black and
causes the monitor screen to appear blank, while the input of the touch
switch(s) still 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 monitor screen disappears even when the screensaver is not set.
• The monitor screen will not come back on by touching the display section,
even if the screensaver is set.
CAUTION
z 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 apart.
Not doing so noise can cause a malfunction.
[MOUNTING PRECAUTIONS]
DANGER
z Before installing or removing the GOT main unit to or from an enclosure,
always switch off the GOT power externally in all phases.
Not doing so can cause a module failure or malfunction.
z Before loading or unloading the communication board, communication
module, External I/O module or memory board to or from the GOT, always
switch off the GOT power externally in all phases.
Not doing so can cause a module failure or malfunction.