209
SECTION 5
Installation and Wiring
This section describes how to install a PLC System, including mounting the various Units and wiring the System. Be sure
to follow the instructions carefully. Improper installation can cause the PLC to malfunction, resulting in very dangerous
situations.
5-1 Fail-safe Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
5-2 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
5-2-1 Installation and Wiring Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 212
5-2-2 Installation in a Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
5-2-3 Assembled Appearance and Dimensions . . . . . . . . . . . . . . . . . . . . . 216
5-2-4 CJ-series Unit Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
5-2-5 Connecting PLC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
5-2-6 DIN Track Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
5-2-7 Connecting CJ-series Expansion Racks . . . . . . . . . . . . . . . . . . . . . . 234
5-3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
5-3-1 Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
5-3-2 Wiring CJ-series Basic I/O Units with Terminal Blocks . . . . . . . . . 241
5-3-3 Wiring I/O Units with Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . 243
5-3-4 Connecting I/O Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
5-3-5 Reducing Electrical Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
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