Beta 1742A Uživatelský manuál Strana 391
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Hodnocené. / 5. Na základě hodnocení zákazníků
16-4 Motion Mate™ DSM314 for Series 90™-30 PLCs User's Manual
–
January 2001 GFK-1742A
16
Basic Cam Shapes/Definition
Electronic Cams duplicate the behavior of their mechanical counterparts. The following figure
illustrates the elements of a basic mechanical cam system and shows the Slave Position for two
positions of the Master Cam. As the Master Shaft rotates, the Master Cam, which is fastened to the
Master Shaft, rotates as well. The Cam Follower (which is a ball bearing mounted to the Offset
Link Arm) rolls on the Master Cam as the Master Cam rotates. The Cam Follower either pushes up
or pulls down on the Offset Link Arm, depending on the position of the Master Cam. The Lever
Arm, which is coupled to the Offset Link Arm, moves up and down in turn, pivoting on the
Fulcrum as the Offset Link Arm moves. Besides the Master Cam shape, additional parameters that
affect slave motion are the Cam Phase value (the amount that the Master Cam position is offset
from the Master Shaft position), the Offset Length of the Offset Link Arm, and the Follower
Amplitude (based on the Fulcrum position). These mechanical parameters all have Electronic
Cam counterparts.
M
aster Cam
F
ollower
A
mplitude
Slave
Position
Cam
Phase
O
ffset
L
ength
M
aster
S
haft
C
am
F
ollower
F
ulcrum
Offset
Link Arm
L
ever Arm
M
aster Cam
F
ollower
A
mplitude
Slave
Position
O
ffset
L
ength
M
aster
S
haft
C
am
F
ollower
F
ulcrum
Offset
L
ink Arm
C
am
P
hase
L
ever Arm
Figure 16-5. CAM Model
- GFK-1742 1
- GE Fanuc Manuals 1
- New In Stock! 1
- GE Fanuc Automation 3
- Warnings, Cautions, and Notes 4
- Content of This Manual 5
- Related Publications 6
- Contents 10
- Product Overview 19
- Versatile I/O 20
- PLC to DSM Data Transfers 22
- Local Logic 23
- DSM314 Position Strobes 24
- DSM314 Scan Time Contribution 24
- Software 25
- VersaPro 25
- Operator Interfaces 25
- Standard Mode Operation 28
- Follower Mode Operation 29
- Section 3: 30
- Series Servos (Digital Mode) 30
- Series Servo Motors 31
- Section 4: 32
- Getting Started 35
- Unpacking the DSM314 37
- Unpacking the FANUC Motor 37
- Connect the 47
- With Terminal Board 48
- Without Terminal Board 48
- External Regeneration 54
- Resistor 54
- VersaPro Program Folders 59
- Home Offset Value 0 0 0 66
- Return Data 1 Offset 66
- Return Data 2 Offset 0 0 0 66
- Motor Type (Digital Mode) 68
- Motion Time 70
- Generating Motion 71
- Enabling Run Mode on the PLC 71
- Configuration Settings 72
- Mission Accomplished! 73
- Important! 74
- I/O Connectors 77
- Shield Ground Connection 78
- I/O Circuit Types 82
- Terminal Boards 82
- Description 84
- Mounting Dimensions 86
- DIN-Rail Mount 89
- Panel Mount 89
- I/O Cable Grounding 95
- Installation and Wiring 101
- I/O Connection Diagrams 102
- January 2001 GFK-1742A 104
- IC693ACC336 Aux. Term. Board 105
- I/O Specifications 110
- Single Ended 5v Sink Input 112
- COMPARATOR 114
- OPEN COLLECTOR DRIVER 114
- 5v Differential Outputs 115
- SOLID STATE 116
- PTC DEVICE 119
- +5v Power 120
- Configuration 121
- Module Configuration 122
- Settings 123
- Number of Axes 124
- Control (CTL) Bits 128
- Output Bits 129
- Axis Configuration Data 130
- User Units, Counts 132
- Overtravel Limit Switch 134
- (Note 1) 144
- (Note 2) 144
- Velocity Loop Gain 150
- Advanced Tab Data 151
- Power Consumption Data 152
- GFK-1742A 5-1 153
- Section 1: %I Status Bits 154
- DSM to PLC Interface 155
- Section 2: %AI Status Words 159
- Description Axis Ref Bit 162
- Description Axis Ref 162
- Digital Mode 172
- Analog Mode 173
- 4.10 Jog Velocity 174
- Jog Acceleration 174
- Select Analog Output Mode 178
- Connector Codes 179
- Signal Codes 179
- Example 1: 180
- Example 2: 180
- Example 3: 180
- Non-Programmed Motion 182
- Home Switch Example 183
- 45741.cvs 184
- Jogging with the DSM314 186
- Move at Velocity Command 186
- Position Increment Commands 188
- Other Considerations 188
- Programmed Motion 189
- Motion Program Basics 193
- Variables 195
- Separators 195
- Motion Program Commands 196
- Block Number 197
- SUBROUTINE 202
- Sync Block 203
- Single-axis Program Structure 205
- Single-Axis Program Example 205
- Multi-Axis Program Structure 206
- Multi-Axis Program Example 206
- Multi-Axis Subroutine Example 208
- Command Usage Examples 209
- Types of Acceleration 210
- Linear Acceleration 210
- S-Curve Acceleration 210
- Positioning Move (PMOVE) 211
- Continuous Move (CMOVE) 211
- 15000 30000 40000 212
- Programmed Moves 213
- DWELL Command 215
- Example 5: DWELL 215
- Wait Command 216
- Subroutines 216
- Block Numbers and Jumps 216
- Unconditional Jumps 217
- Conditional Jumps 217
- Conditional Jump Example 1: 218
- Conditional Jump Example 2: 218
- Conditional Jump Example 3: 218
- Jump Testing 219
- Example 7: Jump Testing 219
- Normal Stop Before JUMP 220
- CTL03 ON 221
- Jump Stop 222
- Example 10: Jump Stop 222
- CTL01 ON 223
- C2 Begins 224
- Maximum Acceleration Time 226
- Feedhold with the DSM314 228
- Feedrate Override 229
- Multi-axis Programming 230
- Kinematic Equations 234
- Velocity 236
- Syntax Errors 237
- Semantic Errors 237
- Warnings 240
- Highlighted 241
- Error Message 241
- Follower Motion 242
- Master Sources 243
- External Master Inputs 243
- A:B Ratio 244
- Example 3: Sample A:B Ratios 245
- Velocity Clamping 246
- Unidirectional Operation 247
- Slave Axis #1 252
- Slave Axis #2 252
- Slave Axis #3 252
- 1 per Servo Axis 257
- GFK-1742A 9-1 258
- Control Sequence: 262
- October 2000 GFK-1742A 263
- GFK-1742A 10-1 264
- Requirements 268
- Getting Started with VersaPro 268
- Using the Local Logic Editor 270
- Local Logic Variable Table 272
- Main Window Menus 273
- Toolbars 281
- Series 90-30 PLC 284
- (RS-485) 284
- Personal Computer 284
- Running VersaPro Software 284
- Local Logic Tutorial 318
- Comments 319
- Operators 320
- Relational Operators 321
- Bitwise Logical Operators 321
- 4000 5000 329
- Local Logic Language Syntax 330
- Local Logic Variables 331
- Local Logic Statements 331
- Whitespace 333
- PRAGMA Directive 334
- Local Logic Outputs/Commands 335
- Operator + 337
- Operator 338
- Operator * 338
- Operator / 339
- Operator MOD 340
- Function ABS 341
- Operator BWAND 342
- Operator BWOR 343
- Operator BWXOR 343
- Operator BWNOT 344
- Comparison Operators 345
- Local Logic Runtime Errors 346
- Local Logic Error Messages 348
- Local Logic Parse Errors 349
- Local Logic Parse Warnings 351
- Local Logic System Variables 355
- System_Halt variable 356
- Local Logic User Data Table 357
- Table 13-2. Axis 2 Variables 359
- Local Logic Configuration 363
- New CTL bits CTL01-CTL32 364
- CTL01-CTL32 365
- Configuring the DSM314 374
- Stopping the PLC 378
- Store Operation 378
- Using the Motion Editor 379
- Saving your Motion Program 381
- Print Report: 385
- Section 1: Introduction 388
- Electronic CAM Overview 388
- Fill Tank 390
- Plunger Axis 390
- (S lave) 390
- Basic Cam Shapes/Definition 391
- Section 2: Cam Syntax 392
- CAM Types 392
- Circular Cyclic CAM 393
- Interpolation and Smoothing 395
- Boundary Conditions 397
- CAM Command 398
- CAM-LOAD Command 400
- CAM-PHASE Command 401
- CAM and MOVE Instructions 401
- Time-Based CAM Motion 401
- CAM-Specific DSM Error Codes 407
- CAM Execution Error Codes 408
- Step 1: Create a New Folder 410
- Step 3: Create a CAM Profile 414
- Step 6: Specify the CAM Type 419
- Step 8: Save the CAM Profile 421
- Mode to Digital Servo 431
- Error Reporting 438
- Error Code Format 439
- Response Methods 439
- System Error Codes 450
- LED Indicators 454
- Appendix 456
- DSM314 COMM REQ 458
- Corrective Action 459
- Monitoring the Status Word 460
- MSWD-TWM 468
- The Command Block 469
- Position Feedback Devices 478
- Postion Feedback Devices 480
- Analog Servo Systems 481
- Startup and Tuning 483
- Tuning Requirements 484
- Tuning the Position Loop 492
- Startup Procedures 494
- Local Logic Execution Time 497
- Example 2 499
- X- Not Applicable 502
- Local Logic Program Constants 504
- Strobe Accuracy Calculations 507
- Estimated assuming 509
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