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Safety Precautions - Mitsubishi Electric GOT2000 Series Connection Manual

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Before using this product, please read this manual and the relevant manuals introduced in this manual
carefully and pay full attention to safety to handle the product correctly.
The precautions given in this manual are concerned with this product.
In this manual, the safety precautions are ranked as "WARNING" and "CAUTION".
WARNING
CAUTION
Note that the
caution level may lead to a serious accident according to the circumstances. Always
follow the instructions of both levels because they are important to personal safety.
Please save this manual to make it accessible when required and always forward it to the end user.
[DESIGN PRECAUTIONS]
Some failures of the GOT, communication unit or cable may keep the outputs on or off.
Some failures of a touch panel may cause malfunction of the input objects such as a touch switch.
An external monitoring circuit should be provided to check for output signals which may lead to a
serious accident.Not doing so can cause an accident due to false output or malfunction.
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.
When the GOT backlight has a failure, the GOT status will be as follows.Failure to observe this
instruction may result in an accident due to incorrect output or malfunction.
• GT27,GT25,GT23
When the GOT backlight has a failure, the POWER LED blinks (orange/blue) and the display
section dims. In such a case, the input by the touch switch(s) is disabled.
• GT21
When the GOT backlight has a failure, the display section dims. In such a case, the input by the
touch switches is disabled.
Even if the display section dims on the liquid crystal of the GOT, the input by the touch switch(s) may
remain enabled. This may cause a malfunction of the touch switch.
For example, if an operator assumes that the display section has dimmed because of the screen
save function and touches the display section to cancel the screen save, a touch switch may be
activated.
The GOT backlight failure can be checked with a system signal of the GOT.

SAFETY PRECAUTIONS

(Always read these precautions before using this equipment.)
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in medium or slight personal injury or physical damage.
WARNING
A - 1

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