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Pre-installation Guidelines SIMATIC 545/555/575 System Manual
Grounding the Power System (continued)
Use particular care when establishing the ground connections. The
following techniques will help to establish good electrical connections and
decrease noise interference:
• Where possible, terminate grounding braid and green wires at both
ends with copper eye lugs to provide a good contact surface. Lugs
should be crimped and soldered.
• Use #10 copper bolts (or equivalent) for those fasteners providing
electrical connections to the single-point ground. This applies to
device-mounting bolts and braid termination bolts for subpanel and
user-supplied single points. Tapped holes for these fasteners are better
than nut-bolt arrangements.
• Paints, coatings, and corrosion can prevent good electrical contact at
ground points. Remove these impediments in the area of contact and
use external toothed lock washers (star washers) to ensure good
continuity and low impedance. This practice should be used for all
terminations—lug to subpanel, device to lug, device to subpanel,
subpanel to conduit, etc. Examples of ground connections are shown in
Figure 2-12.
Star
washers
Equipment
Subpanel
Step 1
Step 3
Step 2
Step 1
Step 2
To ground equipment directly to the sub-panel,
follow these steps:
1. Remove the finish from the equipment at
areas of contact.
2. Tighten the first nut.
3. Tighten the second nut.
You may need a lock washer to prevent the nut
in Step 3 from backing off.
To attach ground leads to the sub-panel,
follow these steps:
1. Remove the finish from the equipment at
areas of contact.
2. Tighten the bolt.
Subpanel
or user-supplied
single-point ground
Star
washers
Ground braid
copper lugs
Figure 2-12 Example of Ground Connections
Ground
Connections
- 1
- 1
- MANUAL PUBLICATION HISTORY 3
- LIST OF EFFECTIVE PAGES 4
- Contents 5
- Contents v 7
- Contents vii 9
- Contents ix 11
- Chapter 9 Troubleshooting 12
- Contents xi 13
- List of Figures 15
- Contents xv 17
- List of Tables 18
- Contents xvii 19
- System Overview 23
- 1.1 Overview 24
- Overview (continued) 26
- 1.2 System Features 28
- Table 1-2 CPU Specifications 29
- System Features (continued) 30
- 1.3 Programming Tools 33
- 1.4 Hardware Overview 34
- Pre-installation Guidelines 36
- 2.2 Safety Considerations 38
- 2.3 575 Fault Relay Operation 41
- USER-CONFIGURED 42
- 2.5 Electrical Noise 47
- 2.6 Correcting Noise Problems 48
- 2.7 Wiring Guidelines 51
- Chapter 3 56
- To install a CPU: 57
- To install an RBC: 57
- 3.3 Series 505 Bases 59
- Measurements: 62
- TAB1TAB2 64
- DC POWER GOOD 66
- AC NEUTRAL 66
- 505-6660 66
- Replaceable Lithium Battery 71
- Replaceable 73
- Lithium Battery 73
- Battery Clip 73
- Battery Socket 73
- 0 (Off)(On) 1 77
- Maximum torque: 82
- 5.0 in-lb (0.56 N-m) 82
- Chapter 4 84
- • Series 505 Remote I/O Annex 85
- • PROFIBUS-DP Annex 85
- Front of Fan Assembly 91
- Fuse holder 92
- Turn counterclockwise 92
- (Run mode) 4.875 to 5.250 1 A 98
- (Battery 98
- Align metal backplate 100
- 4.8 Installing the Battery 103
- Battery connector 104
- Rear panel 104
- Break-away tab 104
- Battery fuse 105
- Alignment 106
- Alignment notch 106
- 4.10 Configuring the CPU 107
- Dipswitch 112
- Standoff 112
- 4.12 Installing VMEbus Boards 115
- 575 system 116
- Figure 4-18 575 Controller 116
- 4.13 Wiring the Fault Relay 127
- *optional 128
- Chapter 5 142
- 5.1 Overview 143
- 5.2 Installation 144
- Installation (continued) 145
- 5.3 Communication Ports 146
- Dipswitch for 149
- Backplane 149
- Figure 5-8 RBC Status Display 153
- Table 5-4 RBC Status Codes 153
- Status Display 153
- 5.5 PPX:505–6870 RBC 155
- Jumper E1 for 156
- PPX:505–6870 RBC (continued) 157
- Cabling and Wiring the System 166
- 6.1 Cable Routing 167
- Drop line from CPU or RBC 180
- Terminating 180
- Resistor 180
- 6.4 Connecting Modems 197
- 6.5 Connecting to a Printer 199
- Chapter 7 201
- 7.1 Program Storage Options 202
- Note location of notches 207
- Note location 207
- Starting Up the System 213
- 8.1 Powering Up the System 214
- 8.2 CPU Memory Configuration 216
- Number per block 217
- Troubleshooting 221
- System Specifications 246
- ° C (32 to 140° F) 247
- ° C (–40 to 158° F) 247
- Power and Compatibility 251
- B.1 Power Consumption 252
- Power Consumption (continued) 254
- Serial Number 259
- Appendix C 260
- Upgrade Path A 264
- Upgrade Path B 264
- Upgrade Path 266
- Remote Base Controller 272
- Power Supply 272
- FREEZE 273
- (factory set) 273
- Controller 275
- RS-485 I/O 282
- From PLC 282
- I/O BASES 282
- 505–6860 282
- Series 505 and VME Components 283
- D.2 575 VME System Components 287
- D.3 Recommended Spare Parts 288
- Appendix E 290
- E.1 Discrete AC Input Module 291
- E.3 Discrete AC Output Module 296
- °C) Temperature (°C) 297
- E.5 Discrete DC Output Module 301
- E.6 Discrete DC Input Module 304
- Appendix F 306
- Index-2 313
- Index-4 315
- Index-6 317
- Index-8 319
- Index-10 321
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