Omron CJ2 CPU UNIT - External Circuits

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CJ2 CPU Unit Hardware User’s Manual

z External Circuits

• Always turn ON power to the PLC before turning ON power to the control system. If the PLC

power supply is turned ON after the control power supply, temporary errors may result in control

system signals because the output terminals on DC Output Units and other Units will momentarily

turn ON when power is turned ON to the PLC.

• Install external breakers and take other safety measures against short-circuiting in external wiring.

Insufficient safety measures against short-circuiting may result in burning.

Main Page

Introduction7
- Applicable Products7
- Intended Audience7
CJ2 CPU Unit Manuals8
- Manual Configuration9
- Hardware User’s Manual (Cat. No. W472)9
Manual Structure11
- Page Structure11
- Special Information11
- Additional Information11
Sections in this Manual13
- Table of Contents15
- Application Considerations20
- Suitability for Use20
Safety Precautions23
- Definition of Precautionary Information23
- Symbols24
Application Precautions27
- Power Supply27
- Installation27
- Wiring28
- Handling28
- External Circuits31
Operating Environment Precautions32
Regulations and Standards33
- Conformance to Shipbuilding Standards34
- Usage Conditions for NK and LR Shipbuilding Standards34
Unit Versions of CJ2 CPU Units35
- Notation of Unit Versions on Products35
- Confirming Unit Versions with Support Software35
- PLC Information35
- Unit Manufacturing Information36
- Unit Versions and Programming Devices39
- Pull-Down List for PLC Models39
- Troubleshooting Problems with Unit Versions on the CX-Programmer40
Related Manuals41
- Overview43
Overview of CJ2 CPU Units44
- CJ2H CPU Units45
- CJ2M CPU Units45
- Overview45
- CJ2 CPU Unit Features46
Basic Operating Procedure54
- Connecting Online to the PLC54
- I/O Allocations54
- Setting Devices and Hardware54
- General Specifications55
- Performance Specifications56
Index57
- Function Specifications63
  - Basic System Configuration and Devices71
  - Expanded System Configuration71
Basic System Configuration72
- CPU Rack72
- Configuration Units84
- Calculating Unit Current Consumption92
- Calculating Power Consumption95
Expanded System Configuration97
- Serial Communications97
- System Configuration Example98
- Communications Networks99
CPU Units102
- CPU Section102
  - Nomenclature and Functions102
- Built-In Ethernet/Ip Section (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)108
Memory Card113
- Models and Specifications113
- Operating Procedures113
  - Before Using a Memory Card114
  - Installing the Memory Card114
- Installing and Removing114
  - Removing the Memory Card115
  - Installing the Memory Card into a Personal Computer116
Pulse I/O Modules (CJ2M CPU Unit Only)117
- Models and Specifications117
- Part Names and Functions117
Serial Option Boards (CJ2M-CPU3@ Only)120
- Overview120
Power Supply Units121
- Models and Specifications121
- Components124
- Selecting a Power Supply Unit127
- Basic I/O Units with Terminal Blocks128
- Interrupt Input Units128
CJ-Series Basic I/O Units128
- Input Signal Width129
- Thirty-Two/Sixty-Four-Point Basic I/O Units with Connectors130
- Sixty-Four-Point Units131
I/O Control Units and I/O Interface Units132
- System Configuration132
- Component Names132
  - Support Software133
4-1 Support Software134
- CX-One FA Integrated Tool Package134
- Support Software134
Connection Methods137
- Connecting by USB137
- Connecting by RS-232C139
- Setting the Communications Protocol140
- Connecting to Ethernet (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)141
  - Installation145
Fail-Safe Circuits146
- Managing CPU Unit Errors146
- Managing Output Malfunctions146
- Order of Powering up the CPU Unit and Controlled System146
- Electrical Diagram147
- Emergency Stop Circuit147
- Interlock Circuits147
- Accessibility for Operation and Maintenance148
- Improving Noise Resistance148
- Installation and Wiring Precautions148
  - Installation in Cabinets or Control Panels148
  - PLC Orientation149
  - Control Panel Installation Dimensions150
- Installation in a Control Panel150
  - Routing Wiring Ducts151
  - Wiring Ducts151
- Assembled Appearance and Dimensions152
  - 20-MM-Wide Units153
  - Design Example for Width W155
  - Installation Height156
- Connecting PLC Components157
- DIN Track Installation159
- DIN Track and Accessories160
- Connecting CJ-Series Expansion Racks161
  - CS/CJ-Series I/O Connecting Cables161
  - Cable Connections162
  - Connecting the Simple Locking Connectors162
  - AC Power Source164
  - AC Power Supply Units164
  - Isolation Transformer164
- Power Supply Wiring164
  - Crimp Terminals165
  - DC Power Supplies166
  - Power Supply Capacity166
  - Wiring in Which the 24-V Power Supply will Short166
  - Grounding167
  - Output Specifications168
  - PLC Input Unit Wiring Example169
  - External Display Device Connection Example170
  - Electric Wires171
- Wiring CJ-Series Basic I/O Units with Terminal Blocks171
- Wiring Basic I/O Units with Connectors173
  - Using User-Made Cables with Connector174
  - Wire Size175
  - Wiring Procedure175
- Connecting Pulse I/O Modules to External I/O Devices177
- Connecting Pulse I/O Modules to External I/O Devices (CJ2M CPU Unit Only)177
- Connecting to Connector-Terminal Block Conversion Units or I/O Relay Terminals177
- Connecting I/O Devices179
  - DC Input Units179
  - Input Devices179
  - AC Input Units180
  - Precautions When Connecting a Two-Wire DC Sensor180
  - Output Short-Circuit Protection182
  - Output Surge Current182
  - Output Wiring Precautions182
  - Transistor Output Residual Voltage182
- Connecting through an Ethernet Cable (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)183
  - Precautions on Laying Twisted-Pair Cable183
  - Connecting the Cable184
  - Ethernet Connectors184
Control Panel Installation186
- Temperature186
- Humidity188
- Vibration and Shock188
- Atmosphere188
- Electrical Environment189
CPU Unit Errors198
- Errors and Remedies198
- Checking Errors198
  - Checking the Indicators198
  - Checking Error Status with the CX-Programmer199
- Checking Detailed Status199
- Reading Error Log Information199
- I/O Table Verification201
- Types of Errors202
- Handling Errors203
- Checking Built-In Ethernet/Ip Port Error Status221
Troubleshooting Built-In Ethernet/Ip Port Errors (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)221
- Checking Error Status at the Ethernet/Ip Port Seven-Segment Display222
Non-CPU Unit Errors and Remedies224
- Error Causes and Remedies224
- Inspection Points232
  - Periodic Inspection Points232
  - Tools Required for Inspections233
- Unit Replacement Precautions234
Replacing the Battery235
- Battery Replacement235
- Operation When Battery Is Exhausted or Not Installed238
Power Supply Unit Replacement Time240
- Power Supply Unit Replacement Notification Module240
- Power Supply Unit with Replacement Notification240
- Principle of Replacement Notification240
- Alarm Output (Replacement Notification Output)241
- Function241
- Replacement Notification Function Displays241
- Display and Alarm Output Operation242
- Maintenance Function Using the TEST Switch242
- Normal Display: Replacement Notification Display242
- Operation at Power off243
- Operation When Turning on the Power243
- Operation When TEST Switch Is Pressed244
- Self-Diagnostic Function244
- Comparison between the CJ1W-PA205C and CJ1W-PA205R245
- Backup Operations247
Backing up Data248
- Using a Computer to Back up Data to the Computer248
Using a Computer to Back up Data249
- PLC Backup Tool249
  - Applicable Units249
  - Applicable Data249
- PLC Backup Tool Operations250
Simple Backup253
- Overview253
  - Backing up Data from the CPU Unit to the Memory Card254
  - Restoring Data from the Memory Card to the CPU Unit254
- Operating Procedures254
- Comparing Data in the Memory Card and CPU Unit255
- Verifying Backup Operations with Indicators256
- Related Auxiliary Bits/Words258
- Time Required for Simple Backup258
- Data Backed up Using Simple Backup258
A-1 Specifications of Basic I/O Units264
- A-1-1 Overview of Units264
- Basic Output Units265
- Basic Mixed I/O Units266
- Reading Terminal Connection Diagrams266
- Basic Input Units with Terminal Blocks267
- CJ1W-ID201 DC Input Unit267
- CJ1W-ID211 DC Input Unit (24 VDC, 16 Points)268
- CJ1W-ID212 DC Input Unit (24 VDC, 16 Points)269
- CJ1W-ID231 DC Input Unit (24 VDC, 32 Points)270
- CJ1W-ID232 DC Input Unit (24 VDC, 32 Points)271
- CJ1W-ID233 DC Input Unit (24 VDC, 32 Points)272
- CJ1W-ID261 DC Input Unit (24 VDC, 64 Points)274
- CJ1W-ID262 DC Input Unit (24 VDC, 64 Points)275
- CJ1W-IA201 AC Input Unit (200 VAC, 8 Points)277
- CJ1W-IA111 AC Input Unit (100 VAC, 16 Points)278
- CJ1W-INT01 Interrupt Input Unit (16 Points)279
- CJ1W-IDP01 Quick-Response Input Unit (16 Points)280
- CJ1W-OA201 Triac Output Unit (8 Points)284
- CJ1W-OD201 Transistor Output Unit (8 Points)285
- CJ1W-OD203 Transistor Output Unit (8 Points)286
- CJ1W-OD211 Transistor Output Unit (16 Points)287
- CJ1W-OD213 Transistor Output Unit (16 Points)288
- CJ1W-OD231 Transistor Output Unit (32 Points)289
- CJ1W-OD233 Transistor Output Unit (32 Points)291
- CJ1W-OD234 Transistor Output Unit (32 Points)293
- CJ1W-OD261 Transistor Output Unit (64 Points)295
- CJ1W-OD263 Transistor Output Unit (64 Points)297
- CJ1W-OD202 Transistor Output Unit (8 Points)299
- CJ1W-OD204 Transistor Output Unit (8 Points)301
- CJ1W-OD212 Transistor Output Unit (16 Points)302
- CJ1W-OD232 Transistor Output Unit (32 Points)303
- CJ1W-OD262 Transistor Output Unit (64 Points)305
- CJ1W-MD231 DC Input/Transistor Output Unit307
- CJ1W-MD233 DC Input/Transistor Output Unit309
- CJ1W-MD263 DC Input/Transistor Output Unit313
- CJ1W-MD232 DC Input/Transistor Output Unit315
- CJ1W-MD563 TTL I/O Unit (32 Inputs/32 Outputs)317
- A-1-3 Precautions on Contact Output Units319
  - Contact Current Vs. Service Life Characteristic319
  - Inductive Load319
  - Service Life Expectancy of CJ1W-OC201/211 Relays319
- Connecting Connector-Terminal Block Conversion Units and I/O Relay Terminals321
  - Connection Patterns for I/O Relay Terminals322
  - Combinations of Connections323
  - Connections to Connector-Terminal Block Conversion Units323
  - Connections to I/O Relay Terminals328
  - Connector-Terminal Block Conversion Unit Connection Diagrams331
  - Inputs and Outputs343
  - Connection Diagrams for I/O Relay Terminals351
  - G7TC I/O Relay Terminals351
  - G70D-V Relay Terminals352
  - G70D Relay Terminals353
  - G70R Relay Terminals354
  - G70A-ZOC16 Relay Terminal Socket355
  - Dimensions356
A-2 Dimensions356
- A-2-1 CJ2H CPU Units356
- A-2-2 CJ2M CPU Units357
- Power Supply Units358
- A-2-4 Basic I/O Units360
A-4 Connecting to a Serial Port on the CPU Unit399
- Wiring Example for 1:1 Connections399
- Noise Countermeasures for External Wiring400
- Installing the USB Driver401
- Revision History421

Omron CJ2 CPU UNIT - External Circuits

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