Allen-Bradley 1746-HSCE Bedienungsanleitung
High-Speed Counter Module
(Catalog Numbers 1746-HSCE)
Installation Instructions
Important User Information.........................2
For More Information...................................3
High-Speed Counter Module Overview.......4
Dip Switch and Jumper Locations...............7
Installing the Module .................................10
Removing the Terminal Block....................11
Important Wiring Considerations...............12
Encoders...................................................14
Specifications............................................20
page
Inside..
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Publication 1746-5.16
Important User Information
Because of the variety of uses for the products described in this publication, those
responsible for the application and use of this control equipment must satisfy
themselves that all necessary steps have been taken to assure that each
application and use meets all performance and safety requirements, including any
applicable laws, regulations, codes and standards.
The illustrations, charts, sample programs and layout examples shown in this
guide are intended solely for purposes of example. Since there are many
variables and requirements associated with any particular installation,
Allen-Bradley does not assume responsibility or liability (to include intellectual
property liability) for actual use based upon the examples shown in this
publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application,
Installation, and Maintenance of Solid-State Control (available from your local
Allen-Bradley office), describes some important differences between solid-state
equipment and electromechanical devices that should be taken into consideration
when applying products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in whole or in part,
without written permission of Allen-Bradley Company, Inc., is prohibited.
Throughout these installation instructions we use notes to make you aware of
safety considerations:
Attention statements help you to:
• identify a hazard
• avoid the hazard
• recognize the consequences
!ATTENTION: Identifies information about practices or
circumstances that can lead to personal injury or death, property
damage or economic loss.
Important:
Identifies information that is critical for successful application and
understanding of the product.
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3
For More Information
As part of our effort to preserve, protect, and improve our environment,
Allen-Bradley is reducing the amount of paper we use. Less paper means more
options for you. In addition to traditional printed publications and CD-ROM
versions, we now offer on-line manuals with the most up-to-date information you
can get. We recommend that you read the related publications listed below before
starting up your control system.
Related Publications
If you would like a manual, you can:
• download a free electronic version from the internet:
www.theautomationbookstore.com
• purchase a printed manual by:
— contacting your local distributor or Rockwell Automation
representative
— visiting www.theautomationbookstore.com and placing your order
— calling 1.800.963.9548 (USA/Canada) or
001.330.725.1574 (Outside USA/Canada)
For Refer to this Document Pub. No.
A more detailed description on how to
configure and program the High-Speed
Counter Module. High-Speed Counter Module
User Manual 1746-6.5
A more detailed description on how to install
and use your modular SLC 500 system. SLC 500 Modular Hardware
Style Installation and
Operation Manual 1747-6.2
A reference manual that contains status file
data, instruction set, and troubleshooting
information.
SLC 500 and MicroLogix
1000 Instruction Set
Reference Manual 1747-6.15
A CD-ROM containing both of the manuals
listed above, plus the:
•SLC 500 Analog I/O Modules User Manual
•Discrete I/O Modules Installation Instructions
•Discrete I/O Modules Product Data
SLC500Literature Collection
on CD-ROM 1747-CD1-1
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Publication 1746-5.16
High-Speed Counter Module Overview
The High-Speed Counter Module, Catalog Number 1746-HSCE is an SLC 500
family compatible device. It can be used with SLC 5/02 (and above)
processors.(1)
The module’s bidirectional counting ability allows it to detect movement in
either direction. In addition, x2 and x4 counting modes are provided to fully use
the capabilities of high-resolution quadrature encoders.
High-speed inputs from quadrature encoders and various high-speed switches are
supported. Accepting input pulse frequencies of up to 50k Hz allows precise
control of fast motions.
In addition to providing an Accumulated Counter, the module provides a Rate
Counter to determine Rate Measurement by indicating the pulse input frequency
in Hz. (Refer to the block diagram on the following page.) The Rate
Measurement is determined by accumulating input pulses over a fixed period of
time. You set the Rate Period to best match your application requirements.
Background Rate calculation is provided in Sequencer and Range Modes. This
operation accepts input rates up to 32,767 Hz. The dynamically configurable
Rate Period ranges from 10 ms to 2.55 seconds.
The module’s four current sink (open collector) outputs can be controlled from
one of two sources:
• the user program
•themodule
Control of the counter reset is configured through user-set parameters. The
counter can be reset from any combination of the Z input, Limit Switch input, or
Soft Reset control bits.
(1) The 1746-HSCE High-Speed Counter Module is not compatible with the 1747-ASB Remote I/O
Adapter Module.
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5
Module operation is determined by selections made in the Setup and Control
Word (M0:e.1). Setting the Function Control bit to 1 triggers the module to start
the proper pulse counter, rate measurement, and output control functions. Many
parameters are dynamic and can be changed without disrupting counter
operation.
A block diagram of the module is shown below. Inputs from the terminal block
enter the diagram at the left, outputs to the terminal block exit at the right. M0
and Output file parameters from the SLC enter the logic blocks from the top.
Input file data to the SLC exit the logic blocks from the bottom.
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Counter Input
Parameters
Pulse and
Direction
Rate Period
Parameters
Rate
Counter
Rate
Measurement
Reset
Parameters
Input
Logic
Reset
Logic
Reset
Condition
ResetInput
Bi
t
Pulse
Counter
Pulse
Counter
Inputs
Pulse Counter
Parameters
Rate
Counter Input
s
Accumulated
Count
Operating Mode
Parameters
OperatingMode
Logic
Rate
Sequencer
Range
Operating
mode
Outputs
OutputControl
Parameters
Operating Mode
Inputs
Output Status
Inputs
Physical
Outputs
Output
Control
Logic
To Terminal Block
From Terminal Block
LS Filter
(JW1)
A
B
Z
LS
Counter Input Parameters
Input Type (MO:e.1/9-11)
Up/Down Count Direction (MO:e 1/3) -d
Reset Parameters
Soft Reset bit (MO:e. 1/4) -d
Reset Mode (MO:e.1/5-7)
Rate Period Parameters
Rate Period (MO:e.9/0-7 or MO:e.16/0-7) -d
Operating Mode parameters
Operating Mode (MO:e.1/14-15)
Function Control Bit (MO:e.1/12)
Range Definitions:
Range Starting Values(MO:e.10-33) -d
Range Ending Values (MO:e.10-33) -d
Range Outputs (MO:e. 3-8) -d
Valid Ranges (MO:e.2) -d
Sequencer Definitions
Valid Steps (MO:e.2 and MO:e.3/0-7) -d
Step Presets (MO:e.17-40)
Step Outputs (MO:e.4-15)
Initial Outputs (MO:e.3/8-15) -d
Sequencer Reset (MO:e.1/0) -d
Critical Error (I:e.0/10)
Configuration Error bit (I:e.0/11)
Configuration Error Code (I:e.4/0-7)
-d indicates a dynamic parameter
Pulse Counter Parameters
Reset Value (MO:e.34 or MO:e.41) -d
Maximum Count Value (MO:e.34 or MO:e.41
Counter Hold bit (MO:e.1/2) -d
Counter Type bit (MO:e.1/13)
Output Control Parameters
Direct Outputs (O:e.0/0-7) -d
Output Source Select (MO:e.0/0-7) -d
Enable Outputs bit (MO:e.1/1) -d
Rate Counter Inputs
Rate Valid (I:e.0/3)
Rate Counter Overflow (I:e.0/4)
Rate Measurement Overflow (I”e.0/5)
Zero Rate Period Count (I:e.0/2)
Rate Period Count (I:e.2)
Rate Measurement (I:e.3)
Pulse Counter Inputs
Accumulated Count (I:e.1)
Overflow/Underflow (I:e.0/13)
Pulse Counter State (I:e.0/14-15)
Operating Mode Inputs
Sequencer Inputs
Current Sequencer Step (I:e.5/0-7)
Next Sequencer Step (I:e.5/8-15)
Sequence Done (I:e.0/6)
Range inputs
Ranges Active (I:e.6/0-11)
Output Status Inputs (I:e.4/8-15)
Error Inputs
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Dip Switch and Jumper Locations
Two dip switches (SW1 and SW2) and one jumper (JW1) are located on the side
of the module.
• SW1 selects the type of input (single ended or differential).
• SW2 selects the output voltage range (4.5-10V dc or 10-30V dc).
• JW1 selects the filtering rate (300 µs or 10 ms) used to debounce the limit
switch input.
Default settings are shown below:
!ATTENTION: Use a small screwdriver to change dip switch
positions. Graphite from pencils will damage the switch.
1234
N
O1234
N
O
1
3
SW2 Default
10-30V dc
JW1 Default
10 mS Filter
SW1 Default
Single-Ended Operation
SW2
JW1
SW1
JW1
SW2
JW1
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Publication 1746-5.16
SW2 Settings
Select an output voltage range that coincides with your supply voltage. The
selections are 4.5 - 10V dc or 10 - 30V dc.
SW1 Settings
Select an input connection, single-ended or differential.
It is possible to configure different inputs in different modes. For example, input
A (CHA) can be configured as differential and input Z (CHZ) can be configured
as single-ended.
!ATTENTION: All switches of SW2 must be ON or all switches
must be OFF. Permanent damage may result if some are ON and
some are OFF.
Operating in the 10-30V dc range with the switches set for the
4.5-10V dc range damages the module.
1234
1234
ON
OFF
ON
OFF
10-30V dc
4.5-10V dc
Switch
Output
1
02
13
24
3
123 4
ABZ
1234
ON
OFF
Switch
Channel not used
Dip switch SW1
ON
OFF
Position Input Connection Input ON range
differential
single-ended
2.8-4.5V dc
3.1-5.5V dc
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JW1 Settings
Select 300 µs or 10 ms filtering to debounce the limit switch input. Position the
jumper as follows:
The LS input allows you to make a direct connection to nominal voltage levels of
5, 12, or 24V dc. The ON voltage ranges are as follows:
Refer to pages 19 and 20 for limit switch wiring instructions.
Wiring Terminal ON range
LS (24V dc) 16.5-30V dc
LS (12V dc) 9.4-16.5V dc
LS (5V dc) 3.8-5.5V dc
!ATTENTION: Only connect one LS input range at a time.
Otherwise, the module will be damaged.
321 321
JW1
10 ms filter
JW1
300 µs filter
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Publication 1746-5.16
Installing the Module
Installation procedures for this module are the same as any other discrete I/O or
specialty module.
1. Align the full-size circuit board with the rack card guide. The first slot (slot
0) of the first rack is reserved for the CPU.
2. Slide the module into the rack until the top and bottom latches are latched.
To remove the module, press the releases at the top and bottom of the
module and slide it out.
Important:
Set the dip switches before installing the module.
!ATTENTION: Disconnect power before attempting to install,
remove, or wire the module.
Make sure your SLC power supply has adequate reserve current
capacity. The module requires 320 mA at 5V dc.
1
1
2
3
4
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