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Omron NT600S Manual - Northern Industrial

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Safety Precautions 3WARNING:Caution:S Do not attempt to take the <strong>NT600S</strong> apart and do not touch any internal partswhile the power is being supplied. Doing either of these may result in electricalshock.S Switch off the power before replacing the backlight. Otherwise you could sustainan electric shock.S Select a proper location referring to Appendix D Installation Environment (page263).Always switch OFF the power before assembling equipment or connectingcables. Otherwise you could sustain an electric shock or equipment could bedamaged.S Fit crimp-style terminals to the power cable. Connecting the wires of the cableto the terminal block directly after merely twisting them together could causefire and other hazards.S The combined lengths of each of the I/O connecting cables must not exceed atotal of 12 m (or 6 m for CjjH models).S Do not use input functions such as PT touch switches for applications wheredanger to human life or serious damage is possible, or for emergency switchapplications.S On unpacking the <strong>NT600S</strong>, check its external appearance and confirm thatthere is no damage. Also confirm that there is no abnormal noise on shaking theunit lightly. The product may malfunction if it is damaged.S If the DIP switch settings have been changed when the <strong>NT600S</strong> is powered,reset the power to the <strong>NT600S</strong>. The changes with the DIP switches becomeeffective only after the power supply is reset.S In order to ensure system safety, be sure to periodically read the PT operatingstatus bit at the host during operation to confirm that the PT is always operatingcorrectly.S During work at the panel, take care to ensure that no metal scraps enter theunit. Otherwise, the product may malfunction.S For the connection to the power supply terminal block, twisted wires of 2 mm 2or greater cross sectional area and M 3.5 size crimp terminals must be used.Use crimp terminals to connect the power supply to the power input terminals.Recommended crimp terminals for M3.5 are given below.Tighten the screws on the terminal block to a torque of 0.8 N·m.Otherwise fire may occur.S After connecting a communication cable, always secure it with the screws.Otherwise the cable may disconnect, causing operation to fail.S The cable’s tensile load is 30 N. Do not subject it to loads greater than this.Otherwise a discontinuity may occur, causing operation to fail.viiηττπ://νιχοντρολσ.χοm

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