Omron NT30C-ST141-E Operation Manual page 13

Safety Precautions
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S Do not apply an AC power supply across the power supply terminals.
S Use a DC power supply with a low voltage fluctuation.
S When complying with EC low voltage directives use a power supply with rein-
forced insulation.
S For the connection to the power supply terminal block, twisted-pair wires with a
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2 mm or greater cross sectional area and M 3.5 size crimp terminals must be
used. Tighten the screws on the terminal block to a torque of 0.8 N⋅cm. Other-
wise fire may occur.
S If the DIP switch settings have been changed while power was supplied to the
PT, reset the power to the PT. The changes with the DIP switch become effec-
tive only after the power supply is reset.
S Before switching ON the power for the first time, set pin 6 of DIP switch SW2 on
the PT to ON (it is set to OFF on shipping). If it is left OFF, messages will not be
displayed normally.
S Press the Abort touch switch on the PT when screen data transmission has
been completed. Unless this touch switch is pressed, the screen data will not
be correctly registered. If the Abort touch switch is pressed during transmis-
sion, the screen data will not be correctly registered.
S Check the operation of screen data and ladder program thoroughly before ac-
tually using them.
S Press touch switches with a force of no greater than 30 N. Applying higher force
may cause glass to break, resulting in injuries or preventing operation.
S Do not press touch switches carelessly while the backlight is OFF or while
nothing is displayed on the screen. The system may operate unpredictably.
Press touch switches only after confirming system safety.
S As far as possible, disconnect all devices connected to the output terminals be-
fore executing the output check. Otherwise, each time an output terminal
comes ON during the check operation, the outputs to the devices may be acti-
vated.
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