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2. Do not install the product in a place subject to vibra- tions and impacts.
It will cause failure or malfunction.
3. Do not mount the controller and its peripheral devices together with a large-sized
electromagnetic contactor or no-fuse breaker, which generate vibration, on the same panel.
Mount them on different panels, or keep the controller and its peripheral devices away from
such a vibration source.
4. Install the controller and its peripheral devices on a flat surface.
If the mounting surface is distorted or uneven, an unacceptable force may be added to the housing,
etc., causing problems.
5. Take measures to ensure that the operating tempera- tures of the controller and its peripheral
devices are within the range of the specifications. Also, the controller should be installed with
spaces between its sides and the other structures or components.
Failure to do so may cause the malfunction of the controller and its peripheral devices or a fire.
2.11 Power Supply
Caution
1. Use a power supply that has low noise between lines and between the power and ground.
In cases where noise is high, an isolation transformer should be used.
2. To prevent lightning surges, appropriate measures should be taken. Ground the surge
absorber for light- ning separately from the grounding of the controller and its peripheral
devices.
2.12 Grounding
Warning
1. Be sure to carry out grounding in order to ensure the noise tolerance.
2. Dedicated grounding should be used.
Grounding should be to a D-class ground. (Ground resistance of 100 or less)
3. Grounding should be performed near the controller and its peripheral devices to shorten the
grounding distance.
4. In the unlikely event that a malfunction is caused by the ground, please disconnect it.
2.13 Wiring
Warning
1. Do not apply any excessive force to cables, such as repeated bending, tensioning, or placing a
heavy object on the cables.
It may cause an electric shock, fire, or the breaking of a wire.
2. Connect wires and cables correctly.
Incorrect wiring could break the controller or its peripheral devices depending on the seriousness.
3. Do not connect wires while power is being supplied.
It may cause the controller to break or its peripheral devices could be damaged, causing a
malfunction.
4. Do not carry the product by holding its cables.
It may cause an injury or damage to the product.
5. Do not connect power or high-voltage cables in the same wiring path as the unit.
The product can malfunction due to noise and surge voltage interference in the signal line from the
power and high-voltage cables. Separate the wiring of the controller and its peripheral devices from
that of the power and high-voltage cables.
6. Confirm wiring insulation.
