Rockwell-automation 1771-IJ_IK IK ENCODER/COUNTER MODULES Manual de usuario descargar pdf (Pagina 23)

3–3Installation

Publication 1771ĆUM006B-EN-P - June 2002

Figure 3.1

Connection Diagram Showing Typical 1771ĆIJ Encoder Application

Channel A

Common

Channel B

Common

Marker

Common

TTL

Output

Encoder

Not

Assigned

TTL Load

Output

TTL Load

Out pu t

Device

(At I/O Rack

Chassis)

5V Module

External

Power Supply

Not

Assigned

Input Device Power

Limit

Switch

Output #2

Output

Return

15948

If multiple power sources are used, maintain isolation between supplies.

12-48V dc

Power

Supply

Output #1

Note: Use a single external supply as shown here, or use an additional isolated supply as shown on figure 3.2.

Note: The module must be placed in a single module group (0-1).

If you use the limit switch, you must use shielded cable such as

Belden 8761 or 9182 for cabling.

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 67 68

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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