Safety Precautions
14
NA-series Programmable Terminal Hardware(-V1) User’s Manual (V125)
Warnings
Do not attempt to take the NA Unit apart and do not touch the product inside while the
power is being supplied. Otherwise it may result in electric shock.
Always ensure that the personnel in charge confirm that installation, inspection, and
maintenance were properly performed for the NA Unit. “Personnel in charge” refers to
individuals qualified and responsible for ensuring safety during machine design,
installation, operation, maintenance, and disposal.
Ensure that installation and post-installation checks are performed by personnel in charge
who possess a thorough understanding of the machinery to be installed.
Do not use the input functions such as the touch panel or function keys of the NA Unit, in
applications that involve human life, in applications that may result in serious injury, or for
emergency stop switches.
Do not attempt to disassemble, repair, or modify the NA Unit. It may cause NA Unit to lose
its safety function.
Never press two points or more on the touch panel of the NA Unit at a time. Touching two
points or more interrupts normal touch panel operations.
To conform to UL Type 4X standards, always use the NA5-W-V1 with a
High-pressure Waterproof Attachment (PWA). If you do not use a PWA, there is a risk of
water entry, which may cause severe equipment damage.
Always pay attention to the inside dimensions when you mount a PWA on the
NA5-W-V1. If you do not mount the PWA correctly, there is a risk of water entry,
which may cause severe equipment damage.
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