ACR Electronics FPR-10 PROGRAMMER Manuel Page 83
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Parker Hannifin
Making Motion 83
Incremental Motion
Incremental motion is commanded relative to the current position.
To move an incremental distance (a distance “relative” to the
current position), use a slash mark ( / ) following the axis.
NOTE: The slash mark is only applicable in linear-interpolated
motion.
Example 1
In this example, the X axis moves an incremental distance of 20 units
from its current position. Then the Y axis moves a decremental
distance of 30 units from its current position.
X/20
Y/-30
Example 2
The X axis makes an incremental move, Y axis makes an absolute
move, and Z axis makes a decremental move. Written on the same
line, this is a coordinated move; all axes complete their moves at
the same time.
X/2 Y2 Z/-2
Comparing Absolute and Incremental Motion
Different types of motion can be used to achieve the same result.
The following examples show absolute and incremental motion, and
a combination of the two. All three examples end at the absolute
position of 400 units.
Example—Absolute Motion
The X axis is commanded to the following absolute positions:
X0
X100
X200
X300
X400
- User Information 2
- Table of Contents 3
- Parker Hannifin 5
- Change Summary 7
- Getting Started 8
- Getting Started - Tutorial 9
- Configuring Masters 12
- What has been generated? 13
- Creating a program 14
- Running the Application 15
- Servo Tuning - Tutorial 16
- Tuning Example 17
- System Configuration 26
- Program/PLC Level 27
- Hardware Configuration 28
- Dedicated I/O 29
- End-of-Travel Limits 30
- Hardware Limit Enable 31
- Software Limits 31
- Soft Limit Enable 32
- Software Limit Positions 32
- Attachments 33
- Attaching Axes 34
- Master/Slave Attachments 35
- Masters 35
- Attaching Masters 35
- • ACR1505 has 16 slaves 36
- • ACR8020 has 16 slaves 36
- • ACR9000 has 8 slaves 36
- • ACR9030 has 16 slaves 36
- • ACR9040 has 16 slaves 36
- Attaching Slaves 37
- Slaves and Axis Names 38
- Memory Allocations 39
- Program 40
- How Much Memory? 41
- Displaying Free Memory 42
- Deleting Programs and PLCs 42
- Clearing Allocated Memory 42
- Programming Basics 43
- Remarks 44
- Command Syntax 44
- Description of Format 45
- Arguments and Syntax 46
- Example Code Conventions 47
- Programs and Commands 48
- ESC key (ASCII 27) 49
- Kill All Motion 50
- Program Flow 51
- IF/ELSE 52
- Repetition 54
- FOR/TO/STEP/NEXT 54
- WHILE/WEND 55
- Other Conditional Statements 55
- Using Parameters and Bits 57
- Setting Binary Bits 57
- Clearing Binary Bits 57
- Printing the Current Value 58
- A Word on Aliases 58
- Programming Example 59
- Parametric Evaluation 60
- Parentheses 61
- Operational Order 61
- Nested Parentheses 61
- Basic Setup 63
- 64 Programmer’s Guide 64
- Feedback Control 65
- Global Objects 65
- 66 Programmer’s Guide 66
- Non-Volatile 67
- Operating System 67
- Program Control 68
- Servo Control 69
- Setpoint Control 69
- Transformation 70
- Velocity Profile 70
- Startup Programs 71
- Resetting the Controller 71
- Return to Factory Default 72
- What is Configuration Code? 73
- The Code 73
- 76 Programmer’s Guide 76
- Making Motion 81
- Move Types 82
- Incremental Motion 83
- Example—Incremental Motion 84
- Combining Types of Motion 85
- Immediate Mode 85
- What are Motion Profiles? 86
- Primary Setpoint 88
- Velocity Profile Commands 91
- Feedback Control Commands 92
- REN Details 94
- RES Details 95
- Coordinated Moves Profiler 96
- Jog Profiler 99
- Example 1 100
- Example 2 102
- Example 3 103
- JOG VEL Details 104
- JOG Commands 105
- JOG REN Details 106
- JOG RES Details 108
- Gear Profiler 109
- Cam Profiler 110
- Example 111
- Homing Subroutines 112
- Figure C 114
- • JOG HOME X1 114
- • Home Backup 114
- • Home Negative 114
- Limit Detection 118
- Dedicated I/O for Homing 118
- Servo Loop Fundamentals 120
- Following Error 121
- Parker Hannifin 122
- 122 Programmer’s Guide 122
- Binary Host Interface 123
- Receiving 124
- High Bit Stripping 124
- Transmitting 124
- Binary Data Packets 125
- Parameter Access 126
- Packet Retrieval 126
- Packet Header 126
- Packet Data 126
- Binary Parameter Access 127
- Binary Peek Command 130
- Binary Poke Command 131
- Binary Address Command 132
- Binary Address Packet 133
- Transmit Packet 133
- Receive Packet 133
- Parameter Codes 133
- Usage Example 133
- Binary Mask Command 135
- Binary Mask Packet 136
- Binary Move Command 137
- Header Code 0 138
- Header Code 1 139
- Header Code 2 139
- Header Code 3 139
- Header Code 4 140
- Header Code 5 140
- Header Code 6 140
- Header Code 7 141
- Move Modes 141
- Linear Moves 143
- Arc Moves 143
- Binary SET and CLR 144
- Binary FOV Command 145
- 146 Programmer’s Guide 146
- Binary ROV Command 147
- Header Bit Mask 148
- Description 149
- Reading Global Variables 149
- Setting Global Variables 150
- Additional Features 151
- Bit Rate and Node Addresses 152
- Transmission Cycle Period 153
- 156 Programmer’s Guide 156
- Analog Inputs and Outputs 161
- Saved Parameters 163
- Drive Talk 164
- Communication 165
- Parameters and Bits 165
- Auto-Addressing 165
- Enabling Auto-Addressing 166
- Drive Control Flags 166
- Configuration 166
- Error Log Flags 166
- Drive Status Flags 167
- Using Drive Talk 167
- Closing Drive Talk 168
- Inverse Kinematics 170
- Troubleshooting 172
- Troubleshooting Table 173
- 174 Programmer’s Guide 174
- Troubleshooting 175 175
- 176 Programmer’s Guide 176
- Troubleshooting 177 177
- 178 Programmer’s Guide 178
- Troubleshooting 179 179
- 180 Programmer’s Guide 180
- Error Handling 181
- Appendix 190
- Subnets 192
- Subnet IDs 192
- Subnet Masks 193
- Examples 195
- Example 4 196
- Example 5 196
- Example 6 197
- Example 7 197
- 198 Programmer’s Guide 198
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