ALLEN BRADLEY 1747-L551 PLC Processor

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8–2 Starting Up Your Control System 1. Inspect Your Installation You can often prevent serious problems in later test procedures by first making a thorough physical inspection. We recommend that you do the following: 1. Make sure that the controller and all other devices in the system are securely mounted. 2. Check all wiring including: • connections from the main disconnect to the controller input • the master control relay/emergency-stop circuit • input device circuits • output device circuits Make certain that all wiring connections are correct and that there are no missing wires. Check the tightness of all terminals to make certain wires are secure. 3. Measure the incoming line voltage. Be certain that it corresponds to controller requirements and that it falls within the specified voltage range. See specifications for input voltage ranges on page 2–11. 2. Disconnect Motion-causing Devices In the following test procedures, the controller is energized. As a safety precaution, you must make certain that machine motion does not occur. The preferred way is to disconnect the motor wires at the motor starter or the motor itself. In this way, you can test the operation of the starter coil, verifying that your output circuit is wired correctly and functioning. Similarly, the preferred way to disconnect a solenoid is to disengage the valve, leaving the coil connected. In some instances, you may not be able to disconnect a device the preferred way. In this case, it is necessary to open the output circuit at some convenient point. For circuit testing purposes, it is best to open the circuit at a point as close as possible to the motion-causing device. For example, your output might be a relay coil that in turn energizes a motor starter; if it is impractical to disconnect the motor wires, the next best thing to do is to open the circuit at a point between the motor starter and the relay contact. ! ATTENTION: Machine motion during system checkout can be hazardous to personnel. During the checkout procedures 3, 4, 5, and 6, you must disconnect all devices that, when energized, might cause machine motion. Publication 1747-6.2
Starting Up Your Control System 8–3 3. Initialize and Test Your Processor When you are certain that machine motion cannot occur with the controller energized, you may begin by initializing the processor using the following steps. 1. Energize the chassis power supply. If power is supplied to the controller and the installation is correct, the initial factory conditions for all processors will be: • Processor Name = “DEFAULT” • Mode = Program Mode or Fault Mode (S:1/0 - S:1/4 = 0 0001) or (S:1/0 - S:1/4 = 0.0001 and S:1/13 = 1) • Watchdog values = 100 ms (S:3H = 0000 1010) • I/O Slot enables = ALL ENABLED (S:11/1 through S:12/14 set to 1) • Node address = 1 (channel 1 = DH485) (S:15L = 0000 0001) • Baud Rate = 19.2K baud (channel 1 = DH485) (S:15H = 0000 0100) • SLC 5/03, SLC 5/04, and SLC 5/05 only: channel 0 configuration: DF1 Full Duplex No Handshaking 1200 Baud (SLC 5/05 – 19.2K Baud) CRC Error Check Duplicate Detect On No Parity • SLC 5/04 only: channel 1 configuration: DH+ 57.6K Baud default node address = 1 • SLC 5/05 only: channel 1 configuration: Ethernet ➀ 10 Mbps ➀ Configuring with BOOTP enabled so that a BOOTP server on the network can automatically provide the SLC 5/05 with the configuration necessary to start communicating over Ethernet. See Appendix G for more information. ! ATTENTION: These steps are covered more extensively in your programming software and Hand-Held Terminal user manuals. Reference these manuals if you have a problem completing one of the steps. 2. Power up the programming device. 3. Configure the controller. Publication 1747-6.2
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Allen-Bradley SLC 500 Modular Hardw
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The information below summarizes th
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iv Table of Contents DH-485 Interfa
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vi Table of Contents Recommendation
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viii Table of Contents Connecting t
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x Table of Contents Calculating Hea
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P-2 Preface How to Use this Manual
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P-4 Preface Conventions Used in thi
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1-2 Quick Start for Experienced Use
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2-2 Selecting Your Hardware Compone
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2-10 Selecting Your Hardware Compon
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3-2 System Installation Recommendat
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3-4 System Installation Recommendat
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Page 97 and 98: 7-2 Wiring Your I/O Modules Contact
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Page 101 and 102: 7-6 Wiring Your I/O Modules Feature
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Page 105 and 106: 7-10 Wiring Your I/O Modules Using
Page 107: This chapter describes how to start
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Page 121 and 122: Maintaining Your Control System 9-3
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Page 129 and 130: Troubleshooting 10-3 Replacing Fuse
Page 131 and 132: Troubleshooting 10-5 If the LEDs in
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Page 135 and 136: Troubleshooting 10-9 Identifying SL
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Page 139 and 140: Troubleshooting 10-13 If the LEDs i
Page 143 and 144: Troubleshooting 10-17 Identifying S
Page 145 and 146: Troubleshooting 10-19 If the RS232
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The information in this appendix wi
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Setting Up the DH-485 Network A-3 O
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Setting Up the DH-485 Network A-5 E
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Setting Up the DH-485 Network A-7 I
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Setting Up the DH-485 Network A-9 T
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Setting Up the DH-485 Network A-11
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This appendix provides an overview
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RS-232 Communication Interface B-3
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This appendix provides an overview
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Setting Up the DH+ Network C-3 Wiri
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This appendix provides a brief intr
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Control Networks D-3 DeviceNet Netw
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- Use this Table to Calculate the
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Power Supply Worksheet E-3 Hardware
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This appendix will assist you in ca
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Calculating Heat Dissipation for th
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This appendix: • describes SLC 5/
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Communicating with Devices on an Et
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You can find the following terms us
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Glossary GL-3 Initiator — A node
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Glossary GL-5 Signal Delay — For
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I-2 Index hardware features, 5-2, 6
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I-4 Index DH-485 Communication Inte
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I-6 Index keyswitch positions for t
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I-8 Index Publication 1747-6.2 Q Qu
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I-10 Index T testing inputs, 8-5 ou
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ALLEN BRADLEY 1747-L551 PLC Processor

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