Toshiba NV Series Hardware Manual page 119

Chapter 3 Installation and Wiring
(1) Place the I/O module for the low-power system I/O on the left, and that for the
(2) Keep 100mm or more space between units for maintenance and ventilation. Keep
(3) Keep the unit at least 200mm away from the power line and power equipment, or shield
(4) For the I/O wire size, see the table below.
(5) The terminal screw size is M3.5. Use an appropriate crimp-type terminal with a width of
(6) DO NOT tie I/O signal line with, locate it close to or wire it in parallel with the
100
6F8C1497
high-power system I/O on the right. Wiring should also be separated.
100mm or more space above the top unit and beneath the bottom unit.
it with a grounded steel plate. If a fluorescent lamp is used for in-board lighting,
separate the lighting wiring from the I/O signal lines.
Use a thicker wire for the common line according to the current capacity. Use of 1.25
2
mm cable is recommended for external cables including those coming out from the
panel to keep the impedance low.
Table 3.2 I/O modules and associated wire sizes
Point of I/O module
16-point module
32/64-point module
7mm or less for the M3.5 screw.
high-voltage or power cable, irrespective of inside or outside the panel. If separation is
difficult, use a collective shielded cable for each I/O signal type and connect the shield
to a single-point ground at the panel inlet (for digital I/O).
Wire size
2
0.5 - 1.25mm
2
0.1 - 0.3mm