- 102 -
No.JXC#-OMX0009-A
20.4 Wiring
Warning
(1) Do not damage the cable or apply a heavy object or pinch the cable. Avoid repeatedly
bending or stretching the cable.
It may cause an electric shock, fire, or breaking of wire.
(2) Wire correctly.
Incorrect wiring could damage the controller or its peripheral devices depending on the seriousness.
(3) Do not perform wiring while the power is on.
It can damage the controller or its peripheral devices could be damaged, causing malfunction.
(4) Do not carry this product by holding its cables.
It may cause an injury or damage to the product.
(5) Do not route wires or cables together with power or high voltage cables.
The wires to the controller or its peripheral devices can be interrupted with noise or induced surge
voltage from power lines or high-voltage lines, causing malfunction.
Route the wires of the product separately from power or high voltage cables.
(6) Verify the insulation of wiring.
Insulation failure (interference with another circuit, poor insulation between terminals etc.) could
introduce excessive voltage or current to the controller or its peripheral devices and damage them.
20.5 Power supply
Caution
(1) Use a power supply with low noise between lines and between power and ground.
In cases where noise is high, use an isolation transformer.
(2) The power supplies for the controller power and the I/O signal power should be separate,
and both Power supplies should not be of the "in-rush current limiting type".
If the power supply is of the "in-rush current limiting type", a voltage drop may occur during the
acceleration of the actuator.
(3) Take appropriate measures to prevent lightning surges. Ground the surge absorber for
lightning separately from the ground connection for the controller and its peripheral devices.
20.6 Grounding
Warning
(1) Ensure that the product is grounded to allow the noise tolerance of the controller.
Otherwise it may cause an electric shock or fire.
(2) A dedicated Ground connection must be used.
Grounding should be to a D-class ground connection. (Ground resistance 100Ω or less)
(3) The grounding point should be as near as possible to the controller to keep the cable length
short.
(4) In the unlikely event that malfunction is caused by the ground connection, it may be
disconnected.
