Delta Tau GEO PMAC User Manual Page 57
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Geo PMAC Drive User Manual
Setting Up Encoders 47
Encoder Value Description
3 Clockwise decode I910 for ENC#1
I920 for ENC#2
7 Counter clockwise decode
Setting up SSI Encoders
The Geo Drive will take the data from the SSI encoder and process it as a binary parallel word. This data
can then processed in the PMAC encoder conversion table for position and velocity feedback. With proper
setup, the information can also be used to commutate brushless and AC induction motors.
Caution:
Geo Drive was designed to work with either Gray Code or Binary Style SSI
Encoders. The Geo Drive takes the gray/binary code information and converts it
into a parallel binary word for absolute and ongoing position data
Hardware Setup
The differential format provides a means of using
twisted pair wiring that allows for better noise
immunity when wired into machinery.
The wiring diagram to the right shows an example of
how to connect the Geo Drive to an SSI encoder.
Function Pin#
CLK+ 6
DATA+ 7
CLK- 19
DATA- 20
ENCPWR/5V 12/24
GND 13/25
Note: We assume the SSI Encoder power
requirements are for 5V, else use of an external power
supply for the SSI encoder is required. Tie together
the Geo Drive GND and the power supply for noise
immunity
2
3
4
5
14
15
16
17
1
6
7
18
19
8
9
20
21
10
11
22
23
12
13
24
25
+5V
GND
CLK+
DAT+
DAT-
CLK-
SSI
encoder
X1/X2
Shield
- ^2 Geo PMAC Drive 1
- Copyright Information 3
- Operating Conditions 3
- Safety Instructions 3
- WARNING: 4
- REVISION HISTORY 5
- .......61 8
- INTRODUCTION 11
- Geo PMAC Drives 12
- Feedback Devices 13
- Compatible Motors 13
- Motor Poles 14
- Introduction 5 15
- 6 Introduction 16
- SPECIFICATIONS 17
- Geo PMAC Feedback Options 18
- Package Types 18
- Electrical Specifications 19
- 480VAC Input Drives 21
- Environmental Specifications 23
- 14 Specifications 24
- RECEIVING AND UNPACKING 25
- 16 Receiving and Unpacking 26
- MOUNTING 27
- Geo PMAC 28
- Low Profile, Dual Axis 28
- GIL012XX, GIH012XX 28
- Single Width 29
- GIH102, GIL152 & GIH152 30
- Double wide with 2 Fans 30
- CONNECTIONS 31
- Use of GFI Breakers 32
- Noise Problems 32
- Operating Temperature 32
- Single Phase Operation 32
- Wiring AC Input, J1 33
- Wiring Earth-Ground 33
- Wiring the Motors 34
- Wiring the Motor Thermostats 35
- Shunt Regulation 37
- Minimum Resistance Value 37
- Maximum Resistance Value 37
- Energy Transfer Equations 37
- 28 System Wiring 38
- System Wiring 29 39
- Bonding 40
- Filtering 40
- Motor Line Filtering 41
- I/O Filtering 41
- System Wiring 42
- CONNECTORS 43
- X2: Encoder Input 2 44
- 6 5 123479 8 45
- 12 11 1 0 45
- Connectors 46
- Connectors 37 47
- TB-4: 016-P L0F04-38P 48
- X8: S. Encoder 1 49
- X9: S. Encoder 2 51
- X10: Discrete I/O 52
- Connectors 43 53
- SETTING UP THE ENCODERS 56
- Setting up SSI Encoders 57
- Software Setup 58
- SSI Clock Frequency 58
- Expected Data Format 58
- Word Length 58
- Direct Memory Write Example 59
- Setting Up Encoders 60
- Commutation Example 1 61
- Commutation Example 2 61
- Encoder Connections 62
- Hardware Setup 62
- Principle of Operation 64
- Setting Up Encoders 55 65
- Setting up EnDat Interface 66
- Setting up Resolvers 69
- Range: 0 – 255 71
- Signal Format 72
- Hall Sensors 73
- Hall Sensors at 0 75
- Using the Test Results 80
- 72 Setting up Encoders 82
- Encoder Loss Setup 83
- Application Safe 84
- ; is a fault 85
- Key Servo IC Variables 86
- Key Motor Variables 86
- DC BRUSH MOTOR DRIVE SETUP 88
- Hardware Connection 89
- SETTING I 90
- T PROTECTION 90
- Setting I 91
- T Protection 81 91
- TROUBLESHOOTING 95
- Status LEDs 96
- APPENDIX A 97
- CONKIT1A 98
- CONKIT1C 99
- CONKIT2A 99
- CONKIT2C 99
- CONKIT4A 99
- Cable Drawings 100
- Geo PMAC Drive User Manual 101
- Appendix A 91 101
- Geo PMAC Drive User Manual 102
- 92 Appendix A 102
- Appendix A 93 103
- 94 Appendix A 104
- Appendix A 95 105
- √ √ √ 106
- √ √ 106
- √ √ 106
- Appendix A 97 107
- 98 Appendix A 108
- APPENDIX B 109
- LIMITS n 110
- APPENDIX C 111
- 102 Appendix C 112
- Appendix C 103 113
- 104 Appendix C 114
- Appendix C 105 115
- 106 Appendix C 116
- MEMORY AND I/O MAP ADDENDUM 117
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