Rockwell-automation 1771-IJ_IK IK ENCODER/COUNTER MODULES Manual de usuario Pagina 59
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Appendix A
Publication 1794ĆUM006B-EN-P - June 2002
Specifications
Specifications - 1771ĆIJ and ĆIK Encoder Counter Modules
General Input Specifications
Number of Counters 1
Counter Input
(switch selectable)
Single channel (counter)
Dual channel (encoder)
Input Pulse Rate 50KHz maximum
Data Transfer Modes
(switch selectable)
Single transfer mode
Block transfer mode
1771-IJ
External supply 5V dc, +0.25V
Input Ratings Vin = 0-5V dc
Vih (min) = 2.4V dc
Vil (max) = 0.6V dc
Device driving input terminal must be able to sink 16A minimum.
Output Ratings 2 open-collector outputs without internal pull-up resistors
Iout = 500mA maximum per output
Vout = 5V dc maximum
Power Dissipation 1771ĆIJ - 6.7 Watts maximum
Thermal Dissipation 1771ĆIJ - 22.9 BTU/hr
1771-IK
External Supply (Vext) 12-24V dc
Input circuits require 170mA maximum
Output circuits require 1.08A maximum
Input Ratings 0<Vin < Vext
For Vext = 12V dc: Vih = 7.2V dc max; Vil = 4.8V dc max
Device driving input terminal must sink (or source if selected on Channel
A) 10mA
For Vext = 24V dc: Vih = 14.4V dc max; Vil = 9.6V dc max
Device driving input terminal must sink (or source if selected on Channel
A) 20mA
Output Ratings 2 open collector outputs without internal pull-up resistors.
Iout = 500mA max per output
Vout = Vext
Power Dissipation 1771ĆIK - 12.1 Watts maximum
Thermal Dissipation 1771ĆIK - 41.3 BTU/hr
General Specifications
Module Location Cat. No. 1771 I/O chassis
I/O Isolation Tested to 1500V ac for 1s
Limit Switch Input 12-48V dc
Backplane Power Supply 5V
Current Requirements
1.2A typical
1.4A maximum
Current consumption from
external power supply
150mA @ 12V dc
75mA @ 24V dc
- Encoder/Counter 1
- AllenĆBradley 1
- Using This Manual 3
- Important User 4
- Information 4
- Using This Manual P–3 5
- Using This ManualP–4 6
- Table of Contents 7
- Introduction 9
- Figure 1.1 10
- Status Indicators 11
- System Power 12
- External Power 12
- Preliminary Adjustments 13
- Count Resolution 14
- Encoder Counter Selection 14
- Figure 2.1 15
- Input Pulses 15
- Binary/BCD Data Format 16
- Figure 2.2 17
- Assembly SWĆ2 17
- Table 2.D 18
- Switch 1 Switch 2 Switch 3 18
- Setting Switch Assemblies 19
- 2–8 Preliminary Adjustments 20
- 1 2, 3 4 5 20
- Installation 21
- Module Placement 22
- Recommended Cable 22
- Figure 3.1 23
- Shielded Cable 24
- Specifications 25
- 3–6 Installation 26
- Module/Processor 27
- Communication 27
- Outputs Words 28
- Input Status Word 28
- • Marker input is high 29
- Single Transfer Programming 31
- Figure 5.1 32
- Preset Words 34
- Single Transfer 35
- Description 35
- Figure 5.4 36
- Figure 5.5 37
- Multiplexing 38
- Table 5.A 39
- Scan Count Sequencing 39
- Scan Counter Ć PLC Processor 40
- • is off at all times 41
- Example Program Ć Single 42
- Transfer 42
- Block Transfer Programming 45
- 6–3Block Transfer Programming 47
- Example Block Transfer 49
- Programs 49
- Rung Descriptions 50
- PLCĆ3 Family Processors 51
- Figure 6.6 52
- PLCĆ5 Family Processors 53
- Figure 6.8 54
- Special Programming 55
- Figure 7.1 56
- Figure 7.2 57
- 7–4 Special Programming 58
- Grounding Guidelines." 61
- SpecificationsA–4 62
- Publication Problem Report 65
- BUSINESS REPLY MAIL 66
- Support Services 67
- PN957678-18 68
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