Siemens IP-Module Manual Pagina 150
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Valorado. / 5. Basado en revisión del cliente
Machine Data, Modes and Traversing Programs IP 266
• G25: Approach target over the shortest path
G26: Approach target in a clockwise direction
G27: Approach target in a counter-clockwise direction
These functions can be executed for a rotary axis only, and are ignored for a
linear axis.
G25: Approach target over the shortest path
When the program is invoked, it defaults to G25. The IP computes the
direction of travel. If the distance is the same in both directions, the target is
approached from the preferred direction (clockwise).
The IP does not take backlash compensation into account when computing
the direction, thus making it possible that the longer path will be taken in a
small number of special situations. Figure 5-29 illustrates such a situation.
Figure 5-29. Traversing of a Rotary Axis with Backlash
Backlash
90
270
270
Traversing movement by
the backlash and an
additional 180 degrees
Actual value is 180 degrees
180
90
270
180
Traversing movement by the
backlash. Actual value is still
0/360 degrees
180
90
00
Prerequisites:
• The backlash compensation value was entered in the machine data
• G25 was programmed and the distance is the same in both directions
• The direction of travel in the last operation was counter-clockwise
5-78
EWA 4NEB 812 6057-02
- SIMATIC S5 1
- Positioning Module 1
- Copyright© Siemens AG 1991 2
- IP 266 Preface 4
- Introduction 5
- Introduction IP 266 6
- Training courses 7
- Reference literature 7
- IP 266 Introduction 9
- Conventions 10
- 1 System Overview 13
- 1.1 Application 14
- 1.2 Axis Types 15
- System Overview IP 266 16
- IP 266 System Overview 17
- - External ground 32
- 2.5.3 External Stop (Pin 6) 34
- 2.5.8 Examples 40
- Job is executed 41
- End of program 41
- Example 2 42
- 2.6 Fault LED 44
- 2.7 IP 266 Monitors 45
- 2.7.1 Encoder Monitor 45
- 2.8 Technical Specifications 48
- 3 Installation Guidelines 52
- C A U T I O N : 53
- 4 Fundamentals of Positioning 60
- 4.3 Terms 64
- 4.3.1 Positioning 64
- 4.3.3 Relationships Between a 66
- 4.4 IP 266 Modes 67
- 5.1 Machine Data 73
- 5.1.1 Hardware Description 75
- 5.1.3 Traversing Range 79
- 5.1.4 Speeds 81
- 5.1.5 Acceleration Rates 83
- 5.1.6 Controller Parameters 84
- 5.1.7 Correction Parameters 87
- 5.3 IP 266 Modes 95
- 5.3.1 Jog 1 (Mode 1) 95
- 5.3.2 Jog 2 (Mode 2) 98
- 5.3.4 Follow-Up Mode (Mode 4) 99
- EWA 4NEB 812 6057-02 100
- 2000 mm/min 102
- 200 mm/min 102
- 0.000 mm 102
- -1-2-5 1 2 108
- Reference Point Coordinate 0 108
- 0 1 2 5 9-1-2 108
- 112
- 5.3.8 Automatic Mode (Mode 8) 115
- Store as block 121
- Store as block 2 121
- negative 126
- positive 126
- Example: Tool change and TO 131
- 5.3.20 EEPROM (Mode 26) 137
- 5.4.1 Program Header 141
- 5.4.2 Traversing Blocks 142
- 5.4.3 Last Block 163
- 6 Fundamentals of COM 266 168
- 6.1.2 System Configuration 169
- 6.1.3 Starting COM 266 170
- Data area: 176
- 6.4.1 Entering Machine Data 186
- Data area for a linear axis: 195
- F1 F7 F1 F3 210
- F1 F7 F3 F2 212
- 6.6 COM 266 Test Mode 222
- Function key menu: 232
- 6.7 Output 235
- 6.8 Delete 237
- 6.9 Information 240
- 6.10 COM 266 Error Messages 243
- 7.1.1 Byte 0: Mode 249
- 7.1.2 Byte 1: Commands 250
- RAM Parameters 252
- 7.1.4 Byte 3: Override Factor 252
- 7.2.1 Byte 0: Mode 259
- 7.2.2 Byte 1: M Function 259
- 7.2.3 Byte 2: Status Bits 260
- Example 1: 262
- The reference point is set: 262
- 7.2.4 Byte 3: Error Flags 263
- 8 Start-Up 267
- Start-Up IP 266 268
- 8.1.3 Drive System Mechanics 269
- 8.1.5 Programmer 271
- IP 266 Start-Up 273
- 8.3 Initializing the IP 266 277
- 9 STEP 5 Programming 289
- STEP 5 Programming IP 266 290
- 9.1.4 Error Analysis 291
- IP 266 STEP 5 Programming 293
- 9.4.1 Cold S5-100U Restart 299
- IP synchron 301
- Invoke mode 4 303
- Job ter 304
- Reference 304
- Positions 321
- Was the last 324
- 10 Troubleshooting 327
- Troubleshooting IP 266 328
- IP 266 Troubleshooting 329
- Basic unit/1000 330
- Pulses 330
- A [µm/pulse] · 60 331
- IP 266 Index 345
- Index IP 266 346
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