Omron NSH5 - 10-2010 Operation Manual page 20

Precautions for Safe Use
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• Always use a Class 2 power supply for compliance with UL standards.
A Class 2 power supply refers to one in which the current and voltage
levels of the product's secondary output are both limited (100 VA
max.), and which has undergone and passed the necessary tests for
UL certification.
• Properly ground the PT to prevent malfunction due to noise.
• Never touch the electronic components or patterns on product boards
with your bare hands. Touch grounded metal to discharge any static elec-
tricity before handling the PT.
• When connecting the cable to the PT, make sure to secure the cable and
the PT. Do not pull on the cable with a force greater than 60 N.
• Thoroughly check the wiring before supplying power.
• Turn OFF the power supply to the PT before connecting or disconnecting
the cable.
• Be sure to tighten the connector screws after connecting the cable.
• The entire system may fail to operate depending on how the power supply
is turned ON or OFF. Follow specified procedures for turning the power
supply ON and OFF.
• Thoroughly confirm operation of screen data, macros, and host program-
ming before starting actual use.
• Do not perform the following operations while the Memory Card is being
accessed.
Turning OFF the power supply to the PT
Removing the Memory Card
Always follow specified procedures for removing the Memory Card.
• To ensure system safety, incorporate programming at the host to periodi-
cally accesses a RUN signal to confirm that the PT is operating properly.
• Press touch switches with a force of 30 N max.
• Confirm system safety before pressing touch switches.
• Use caution when pressing touch switches if there is no display shown or
if the touch switch backlight is not lit.
• The inputs may not be read properly if touch switches are pressed in rapid
succession. Confirm one input before proceeding with the next.
• Confirm that the created screen data is backed up in the CX-Designer
before initializing the screen data.
• When changing the password in the System Menu, do not reset the PT or
turn OFF the power supply until the write operation has been performed
(i.e., until the Write Button returns to normal). The screen may not func-
tion if the password is not properly saved.
• When using the device monitor function, thoroughly confirm system safety
before performing the following operations.
• Changing present values for monitor data, timers, or counters
• Changing the operating mode
• Force-setting/resetting bits
• Changing settings for timers or counters
• Never use volatile solvents, such as paint thinner or benzene, or chemical
wipes for cleaning.
• Do not attempt to disassemble, repair, or modify the PT.
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