OEMax NX70-PULSE4 User manual

Maximum Value for OEMsSM
NX70 Pulse I/O Unit (4CH)
(NX70-PULSE4)
User Manual

Important User Information
Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Because of these differences, and also
because of the wide variety of uses for solid state equipment, all persons
responsible for applying this equipment must satisfy themselves that each
intended application of this equipment is acceptable.
In no event will OE MAX Controls be responsible or liable for indirect or
consequential damages resulting from the use or application of this
equipment.
The examples and diagrams in this manual are included solely for
illustrative purposes. Because of the many variables and requirements
associated with any particular installation, OE MAX Controls cannot assume
responsibility or liability for actual use based on the examples and
diagrams.
No patent liability is assumed by OE MAX Controls with respect to use of
information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without
written permission of OE MAX Controls is prohibited.
Throughout this manual we use notes to make you aware of safety
considerations.
Identifies information about practices or circumstances
which may lead to serious personal injury or death, property
damage, or economic loss.
Identifies information that is critical for successful
application and understanding of the product.
Identifies information about practices or circumstances that
can lead to minor personal injury, property damage,
economic loss, or product malfunction. However, depending
on the situation, failure to follow the directions
accompanying this symbol may also lead to serious
consequences.
WARNING
ATTENTION
IMPORTANT

3
Contents
1. Pulse I/O Unit Functions ............................................ 9
Features and Functions ................................................................................ 9
Functions of Unit ........................................................................................ 10
Configuration and Limit for Pulse I/O Unit ............................................... 14
Restrictions Due to Combination of Pulse Output Function ................... 14
Parts and Functions .................................................................................... 15
Wiring .......................................................................................................... 17
2. Configuration and Design Verification of the Unit .. 19
Slot No. and I/O Number Allocation Verification ..................................... 19
Embedded Counter..................................................................................... 27
3. General I/O Function................................................ 29
General I/O Function................................................................................... 29
4. Input Time Constant Function................................. 31
Input Time Constant Function ................................................................... 31
Use Input Time Constant Function............................................................ 33
5. High-Speed Counter Function ................................. 35
High-Speed Counter Function ................................................................... 35
Count Function Available as Direction Control Mode ............................. 39
Count Function Available as Individual Input Mode................................ 41
Count Function Available as Phase Input Mode ...................................... 43
6. Comparison Output Function .................................. 45
Comparison Output Function .................................................................... 45
Comparison Output Function with Counter ............................................. 48
7. Pulse Output Function............................................. 51
Pulse Output Function................................................................................ 51
Use Pulse Output Function ........................................................................ 55
Use Pulse Output Function (Frequency Change) ..................................... 57
Use Pulse Output Function (Constant Pulse Output)............................... 59
Use Pulse Output Function (Setting Increase/Decrease Position) .......... 63

4
8. PWM Output Function ............................................. 67
PWM Output Function ................................................................................ 67
Use PWM Output Function ........................................................................ 71
9. Application Examples.............................................. 73
Speed Measuring........................................................................................ 73
Fixed Length Processing ............................................................................ 75
Position Control by Absolute Value .......................................................... 79
Position Control by Data Table .................................................................. 83
Appendix A. Specifications ........................................... 89
Performance Specifications List ................................................................ 89
Appendix B. I/O Contact Points and Memory Map ........ 93
I/O Contact Points ....................................................................................... 93
Shared Memory Areas ............................................................................... 95

5
Safety Instructions
Please read this manual and the related documentation thoroughly
and familiarize yourself with product information, safety instructions
and other directions before installing, operating, performing
inspection and preventive maintenance. Make sure to follow the
directions correctly to ensure normal operation of the product and
your safety.
• If this product is used in a situation that may cause
personal injury and/or significant product damage,
implement safety measures such as use of fault-safe
equipment.
• Do not use this product under any conditions
exposed to explosive gases. It may cause an
explosion.
• Please fasten cables with terminal bolts.
• Do not use the product under conditions that do not
meet correct environmental standards.
• Make sure you connect grounding cables.
• Do not touch terminals when electric current is
flowing.
ATTENTION
WARNING

6
NX 70 Pulse I/O Unit Installation Environment
Do not install your unit if any of the following
conditions are present:
• Ambient temperature outside the range of 0 to 55 °C
(32 to 131 °F).
• Direct sunlight.
• Humidity outside the range of 30% to 85%
(non-condensing).
• Chemicals that may affect electronic parts.
• Excessive or conductive dust, or salinity.
• High voltage, strong magnetic fields, or strong
electromagnetic influences.
• Direct impact and excessive vibration.
Precautions for Electrostatic
• Excessive static electricity can be generated in dry
conditions, so please make sure to discharge
electrostatic with other materials like grounded
metal bars before contacting unit
Cleaning Unit
• Do not use thinners, which can damage or degrade
PCB circuit board.
ATTENTION
ATTENTION
ATTENTION

7
Compatibility Between High-speed Counter Unit (1CH or 2CH) and
Pulse I/O Unit
●Not compatible in terms of either hardware or software.
●Ladder program is also not compatible.
Comparison between High-speed Counter unit (1CH or 2CH) and
Pulse I/O Unit
Reference Manuals
NX70 Controller User Manual
NX7/NX70 Instruction Set Reference Manual
WinGPC Software User Manual
Click “HELP” on the WinGPC S/W screen or contact your local
distributor.
Comparison item High-speed counter unit Pulse I/O unit
NX70 (NX70-HSC1) NX70 (NX70-HSC2) NX70 (NX70-PULSE4)
High-speed
counter
Number of
channels 1CH 2CH 4CH
Highest
counting speed Max. 100 KHz Max. 200 KHz
Counting range 24bit signed (Binary format)
(-16,777,216 to +16,777,215)
32bit signed (Binary format)
(-2,147,483,648 to
+2,147,483,647)
Min. input
pulse width 5µs2.5µs
Comparison
output 2 points, (C=P, C>P) 4 points, (C=P, C>P) x 2 8 points, random designation for 8 target values
Input time constant None 4 µs, 8 µs, 16 µs, 32 µs
(Setting for 2 input units)
Pulse output function None 4CH, 100 KHz
PWM function None 4CH, 30 KHz

8

9
1
Pulse I/O Unit Functions
Features and Functions
Features
NX70 PLC Pulse I/O unit is a special unit that provides easy
implementation of pulse output and high-speed counter functions.
The main features of pulse I/O unit include the following.
Pulse I/O unit provides high-speed counter functions with various other
functions as follows:
System Configuration Without Losses
Unit I/O terminals that are not allocated to any function can be used for
general I/O terminal, which enables a single high-speed counter unit to be
used both for counter function and sensor input, providing system
configuration without system resource loss.
Easy position controlwith a single pulse I/O unit
Pulse I/O unit provides pulse output function. Output pulses are always
known to the Pulse I/O unit, which feature allows you to implement a position
control with a single Pulse I/O unit.
Four 0.8A Outputs
It operates as mixed I/O unit.
Set the effective pulse width of input
signal.
Count pulse number.
Compare pulse number and set
value and output the results.
NX70 PLC
Pulse output unit
(NX70-PULSE4)
Pulse output.
PWM output.
Pulse output and PWM output are only available to pulse I/O unit.
Be careful because this function is NOT available for High-performance
High-speed counter unit (4CH).
General I/O Function
(See "Chapter 3")
Input Time Constant
Function
(See "Chapter 4")
Counter Function
(See "Chapter 5")
Comparison Output
Function
(See "Chapter 6")
Pulse Output Function
(See "Chapter 7")
PWM Output Function.
(See "Chapter 8")

10
Functions of Unit
●Each function can be operated by shared memory settings.
General I/O Functions
●Pulse I/O unit operates as a 16 In/16 Out mixed I/O unit with its
default setting. By changing the shared memory configuration, you
can configure it as a specialty module, such as high speed counter
or pulse output unit, a 32-point input unit, a 32-point output unit, or
a 16 In/16 Out mixed I/O unit .
●I/O allocation changes depending on unit installation slot.
(Ex.) When unit is installed in slot 0, occupied I/O will be R0 to
R3, and the actual allocation for terminal will be R0 and R2.
●Function I/O will set as priority when using functions, but for areas
without function allocation, they will be used for general I/O.
Input Time Constant Functions
●Effective pulse width for input signals from I/O connector can be set
by this function.
Input signal whose pulse width is smaller than the effective pulse
width is considered noise.
●Effective pulse width can be set by four constants, in two point units
for I/O connector, as described below.
●Input time constant function prevents input errors caused by noise
by setting the effective pulse width of input signals. See "Chapter 4"
for detailed settings for input time constant.
Effective Pulse
Width (Wµs)
Max. count
speed
No setting 200 kHz
4 125 kHz
8 62.5 kHz
16 31.2 kHz
32 15.6 kHz
W or more W or more
Setting
Unit
External input terminal
NX70 Pulse output unit
Group 1 [I ] A1, A2 (Input allocation R0.0, R0.1)
Group 2 [I ] A3, A4 (Input allocation R0.2, R0.3)
Group 3 [I ] A5, A6 (Input allocation R0.4, R0.5)
Group 4 [I ] A7, A8 (Input allocation R0.6, R0.7)
Group 5 [I ] B1, B2 (Input allocation R0.8, R0.9)
Group 6 [I ] B3, B4 (Input allocation R0.10, R0.11)
Group 7 [I ] B5, B6 (Input allocation R0.12, R0.13)
Group 8 [I ] B7, B8 (Input allocation R0.14, R0.15)
Input signal whose pulse width is smaller
than the effective pulse width is considered
an input error (noise).
R0.0 (Terminal block input)
R0.0 (Signal after time
constant setting)
Be careful because that the default is set to no time
constant setting.
ATTENTION