Elmomc SimplIQ Software Manual Manual de usuario Pagina 152
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SimplIQ Software Manual The Position Reference Generator
MAN-SIMSW (Ver. 1.4)
11-11
The four parameters a, b, c and d are unknown and can be solved using the following
four linear equations:
P(t
0
) = P0, namely, d = P0
V(t
0
) = V0, namely, c = V0
P(t
0
+ T) = PT, namely, PT = aT
3
+ bT
2
+ cT + d
V(t
0
+ T) = VT, namely, VT = 3aT
2
+ 2bT + c
Example 2:
This example demonstrates how very few points can accurately describe a smooth and
long motion path.
Two drives, driven synchronously, draw an ellipse. One drive drives the x-axis and the
other drives the y-axis. The long axis of the ellipse is 100,000 counts long and the short
axis of the ellipse is 50,000 counts long. The entire ellipse is to be traveled within 2.2
seconds.
A PVT motion is planned with a fixed inter-point time of 100 milliseconds. For the entire
ellipse, 23 points are sufficient, as depicted in the following figures. The motion is
planned so that the tangential speed is accelerated to a constant rate, and then
decelerated back to zero at the end of the ellipse. Near the starting point of the ellipse, the
speed is slow; therefore, the PVT points — which are equally spaced in time — are more
spatially dense in that area. The continuous line in the following figure depicts the true
ellipse along with the ellipse generated by the drive by interpolating the PVT points.
The original ellipse and the drive interpolation of the PVT points are so close that they
cannot be differentiated on the plot, as seen in the following depiction of the ellipse.
-4 -2 0 2 4
x 10
4
-4
-3
-2
-1
0
1
2
3
4
x 10
4
Nominal ellipse
Ellipse PVT points
Motion starts and teminates here
The following figure takes a closer look at the error between the true ellipse and the
drive-interpolated path.
- SimplIQ 1
- Important Notice 2
- Elmo Worldwide 3
- Contents 4
- Software Manual Contents 5
- Chapter 1: Introduction 9
- SimplIQ Drive Description 10
- 2.2 Related Software 11
- 2.3 Units of Measurement 12
- 2.3.3 Current and Torque 13
- SimplIQ Drive Peripherals 14
- 2.5.4 Digital Outputs 15
- 3.1 RS-232 Basics 16
- 3.2 The Echo 17
- 3.3 Background Transmission 17
- SimplIQ drive will normally 18
- 4.1 The Command Line 19
- 4.2.1 Numbers 20
- 4.2.4 Operator Details 23
- SimplIQ Interpreter 24
- 4.2.6 Expressions 25
- 4.2.6.3 User Variables 27
- 4.2.7 Comments 29
- SimplIQ User Programming 30
- 5.3 Standard Conventions 32
- 5.3.2 Line Continuation 33
- 5.3.3 Limitations 33
- 5.4.1 Numbers 33
- 5.4.4 Operator Details 34
- 5.4.7 CAN Object Emission 35
- 5.4.8 Expressions 36
- 4.2.6.1) 37
- 5.4.8.5 System Commands 38
- 5.4.8.7 User Function Calls 39
- 5.5 Comments 40
- 5.6 Fault Handling 41
- 5.7 Program Flow Commands 41
- 5.7.2 For Iteration 43
- 5.7.3 While Iteration 44
- 5.7.4 Until Iteration 45
- 5.7.5 Wait Iteration 45
- 5.7.6 If Condition 46
- 5.7.7 Switch Selection 47
- 5.7.8 Continue 48
- 5.7.9 Break 49
- 5.7.10 Return 49
- 5.7.11 Try-Catch 50
- 5.8 Functions 51
- 5.8.2 Dummy Variables 53
- 5.8.4 Automatic Variables 55
- 5.8.5 Global Variables 55
- 5.8.6 Jumps 56
- 5.8.9 Automatic Subroutines 59
- #@AUTO_I3 60
- 5-1. When the 61
- Execution 63
- SimplIQ drives 72
- SimplIQ drive does not 72
- SimplIQ drive setup 73
- SimplIQ drive; 75
- 6.3 The Preprocessor 76
- 6.4 Compiler Pragmas 77
- 6.4.1.2 #if 79
- 6.4.1.3 #else 79
- 6.4.1.4 #elseif 80
- 6.4.1.5 #endif 80
- 6.4.1.6 #ifdef 80
- 6.4.1.7 #ifndef 81
- 6.4.1.8 #undef 81
- 6.5.1 Binary Data 83
- 6.5.2.1 The LP[N] Command 84
- 6.5.2.2 The CP Command 84
- 6.5.2.3 The CC Command 84
- 6.5.3 Downloading a Program 85
- 6.6 Program Execution 86
- 6.6.1 Initiating a Program 87
- 6.7 Debugging 88
- 6.7.2 The Elmo Studio 89
- 6.7.3 The DB Command 89
- 6.7.4 Machine Status 90
- 6.7.5 Program Status 90
- 6.7.6 Error Status 91
- 6.7.9 Single Step 92
- 6.7.11 Setting the Stack 94
- DB##PS[N]; 96
- DB##GS[N]=BP-3,BP-2; 96
- Chapter 7: Development Aids 97
- Input Device 98
- Analog Voltage Source 99
- SimplIQ drive can always 100
- 7.4 The Recorder 101
- Uploading Data 102
- 7.4.2 Signal Mapping 102
- 7-2. To access 103
- RV[1]=5; RV[2]=1; RC=3; 104
- MAN-SIMSW (Ver. 1.4) 105
- 7-2: Pre-trigger Delay 106
- 7-4: Trigger Parameters 107
- SimplIQ drive 108
- SimplIQ drive message 108
- 7-7: BH Record Structure 109
- Chapter 8: Commutation 111
- 8.1.2 Stepper Commutation 112
- 8.1.3 BLDC Commutation 112
- 8.3 Commutation Sensors 113
- 8.3.2 Shaft Angle Sensors 114
- Commutation Errors 115
- 8-3: Encoder Parameters 117
- 8.4.1 Selecting Parameters 118
- 8.4.2 Method Limitation 119
- 8.4.3 Protections 120
- 8.5.1 Six-step Commutation 121
- 8.6 Winding Shapes 122
- SimplIQ Software Manual 124
- )(h θ and )(g θ 125
- ]1[PL > 126
- 9-4: Current PI Controller 128
- Chapter 10: Unit Modes 131
- 10-2) 132
- Software Manual Unit Modes 133
- FR[2] Follower gain 135
- 10.2.3 Stop Management 136
- 10-8: Stepper Mode (UM=3) 139
- Generator 142
- 11.3) 143
- 11.1.4 Point-to-Point (PTP) 145
- 11-5: PTP Motion Parameters 146
- 11.1.5 Jog 149
- 11.1.6.1 The PVT Table 155
- 11.1.6.2 Motion Management 156
- 11.1.6.3 Mode Termination 158
- 11.1.7 Position - Time (PT) 162
- 11.1.7.2 The PT Table 164
- 11.1.7.3 Motion Management 164
- 11-8: PT Motion Parameters 165
- 11.2.1 Follower 171
- 11-14: Follower Ratio 172
- 11.2.2 ECAM 173
- 11.2.2.1 Linear ECAM 174
- 11-15: Linear ECAM 175
- 11.2.2.2 Cyclical ECAM 176
- 11-16: Cyclical ECAM 177
- 11.2.5.1) 177
- Drawing x-y manipulator 178
- Camera station 178
- Parameters 180
- 11.3 Stop Manager 181
- VL[3]= -5000 183
- 12.1 Modulo Counting 186
- 12.2 Digital Inputs 187
- 12.3 Digital Outputs 187
- 12.4.1 Manual Query 188
- 12.4.2 Periodic Query 189
- 12.4.3 Automatic Routines 189
- and Flag 189
- 12.5 Homing and Capture 190
- 280004.020000 191
- ]1[004.0 191
- 12.5.6 Capture 195
- 5.8.9) 196
- 13.1 Current Limiting 197
- 13.2 Speed Protection 199
- 13.3 Position Protection 200
- 13.4 Enable Switch 201
- 13.5 Limit Switches 202
- 13.9.2) 203
- 13.8 Motion Faults 204
- 13.9 Diagnosis 205
- 13-2: CD Reported Elements 206
- 13.10 Sensor Faults 207
- 13.11 Commutation is Lost 208
- Chapter 14: Filters 210
- Software Manual 13BFilters 211
- 14.1.1 Fixed Link (Type 16) 213
- 14-6 to convert them 214
- 14.2.2 Notch Filter Element 215
- 14.2.3 Double-lead Element 216
- 14.2.4 First-order Element 217
- Chapter 15: The Controller 219
- 15.1 Speed Control 220
- SPEEDISpeed 221
- 15.2.1 Block Diagram 223
- K is replaced by: 224
- 15.4) 225
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