CS1W-NC113/213/413/133/233/433
Position Control Units
Operation Manual
Revised February 2008
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Notice:
r
f
OMRON products are manufactured for use according to proper procedures by a qualified operator
and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in this manual. Always heed
the information provided with them. Failure to heed precautions can result in injury to people or damage to property.
!DANGERIndicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury. Additionally, there may be severe property damage.
!WARNINGIndicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury. Additionally, there may be severe property damage.
!CautionIndicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury, or property damage.
OMRON Product References
All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers to
an OMRON product, regardless of whether or not it appears in the proper name of the product.
The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means
“word” and is abbreviated “Wd” in documentation in this sense.
The abbreviation “PLC” means Programmable Controller. “PC” is used, however, in some Programming Device displays to mean Programmable Controller.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of
information.
OMRON, 2000
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, o
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o
OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without
notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility
for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in
this publication.
Note Indicates information of particular interest for efficient and convenient opera-
tion of the product.
1,2,3...1. Indicates lists of one sort or another, such as procedures, checklists, etc.
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Unit Versions of CS-series Position Control Units
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
Unit VersionsA “Unit version” has been introduced to manage Position Control Units in the
CS Series according to differences in functionality accompanying Unit
upgrades.
Notation of Unit Versions
on Products
CS-series Position Control Unit
NC113
CS
R
U
N
E
R
C
E
R
H
S
E
N
S
D
A
T
A
X
MACH
No.
1
X
10
0
X
10
1
1
24
24
Confirming Unit Versions
with Support Software
1,2,3...1. In the IO Table Window, right-click the Position Control Unit and select Unit
The Unit version is given to the right of the lot number on the nameplate of the
applicable Position Control Units, as shown below.
Product nameplate
CS1W-NC113
NC UNIT
Unit version
Example for Unit version 2.3
Lot No. 031001 0000 Ver.2.3
OMRON CorporationMADE IN JAPAN
The Unit version of the Position Control Units begins at version 2.0.
The Unit version can be confirmed in Unit Manufacturing Information of CXProgrammer version 4.0 or higher using the following procedure.
Manufacturing information.
2. The following Unit Manufacturing information Dialog Box will be displayed.
Unit version
2.3
Example: Unit version 2.3 will be displayed in the Unit Manufacturinginformation Dialog Box.
Use the above display to confirm the Unit version of the Position Control
Unit.
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Using the Unit Version
Label
The following Unit version label is provided with the Position Control Unit.
This label can be attached to the front of the Position Control Unit to differentiate between Position Control Units of different Unit versions.
Unit Version Notation
In this manual, the Unit version of a Position Control Unit is given as shown in
the following table.
Product nameplateNotation used in this manualSpecial remarks
Ver. 2.0 or later number
shown to the right of the
lot number
Blank to the right of lot
number
CS-series Position Control Unit Ver. 2.0 or laterInformation without refer-
ence to specific Unit versions applies to all versions
Pre-Ver. 2.0 CS-series Position Control Unit
of the Unit.
Functions Supported by Each Unit Version of Position Control Unit
Unit VersionPre-Ver. 2.0Ver. 2.0Ver. 2.1Ver. 2.2Ver. 2.3
Internal system software version
CS-series Position Control Units CS1W-NC113/133/213/233/413/433
Functions
Support SoftwareCX-Position Ver.
Changing the acceleration for a multiple
start during relative
movement or absolute movement in
direct operation
Changing acceleration/deceleration time
during jog operation
Setting acceleration/deceleration time
for axis parameters
until the target speed
is reached
Easy backup function Not supportedSupportedSupportedSupportedSupported
Setting number of
unused axes
Setting CW/CCW
pulse output direction
Setting origin search
pattern
Position data setting
when origin signal
stops
Setting jog operation Not supportedNot supportedNot supportedNot supportedSupported
Setting deviation
counter reset output
signal
Checking parameters
and data at startup
1.02.02.12.22.3
Not supportedSupportedSupportedSupportedSupported
Not supportedSupportedSupportedSupportedSupported
Not supportedSupportedSupportedSupportedSupported
Not supportedNot supportedSupportedSupportedSupported
Not supportedNot supportedNot supportedSupportedSupported
Not supportedNot supportedNot supportedSupportedSupported
Not supportedNot supportedNot supportedSupportedSupported
Not supportedNot supportedNot supportedNot supportedSupported
Not supportedNot supportedNot supportedNot supportedSupported
1.0 or later
CX-Position Ver.
1.0 (See note 2.)
CX-Position Ver.
2.0 or later
CX-Position Ver.
1.0 (See note 2.)
CX-Position Ver.
2.0 or later
CX-Position Ver.
1.0 (See note 2.)
CX-Position Ver.
2.0 (See note 2.)
CX-Position Ver.
2.1 or later
CX-Position Ver.
1.0 (See note 2.)
CX-Position Ver.
2.0 (See note 2.)
CX-Position Ver.
2.1 (See note 2.)
CX-Position Ver.
2.2 or later
Note1. The Position Control Unit must be installed with CS1-H CPU Unit to use
the above functions supported for Position Control Unit Ver. 2.0. These
functions cannot be used if the Position Control Unit is installed with a CS1
CPU Unit (with -V1 suffix).
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2. With CX-Position Ver. 1.0, new functions added to Position Control Units
Ver. 2.0 or higher cannot be used.
Checking Position Control Unit Version and Internal System Software Version
Position Control Units have an internal system software version in addition to
the Unit version used by CS/CJ-series Units to distinguish functions. The following table shows the relationship between the Position Control Unit’s Unit
version and internal system software version.
Version typeUnit versionInternal system software version
DetailsVersion code for distinguishing functions sup-
ported for CS/CJ-series Units.
Checking methodThe Unit version code is displayed to the right
of the lot number on the nameplate attached
to the Position Control Unit.
The Unit version code can also be checked
from CX-Programmer Ver. 4.0 in Unit Manu-facturing information of the I/O Table Window.
CorrelationPre-Ver. 2.01.0
Ver. 2.02.0
Ver. 2.12.1
Ver. 2.22.2
Ver. 2.32.3
Version code for internal system software.
Press the Ctrl + V Keys while the CX-Position
NC Monitor Screen is displayed.
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Version Upgrade Information
The following tables outline changes made for the most recent version upgrade for SYSMAC CSSeries Position Control Units.
■ Enhanced Functions for Unit Version 2.0
Changing Multiple-start Acceleration for Relative and Absolute Movement during Direct Operation
Previous versionPresent version (Ver. 2.0 or later)
When executing multiple starts during direct
operation, the acceleration/deceleration times
set for the first start were used.
Changing Accelerations/Decelerations and Changing Deceleration Following Interrupt Inputs for Interrupt Feeding during Direct Operation
Previous versionPresent version (Ver. 2.0 or later)
The speed command could be changed as
long as it was done before the interrupt signal
was input. If an acceleration/deceleration time
was changed, the change would not be effective until the next interrupt feed command. The
acceleration/deceleration times set for the first
start were used for speed changes. The deceleration time set for the first start was used after
interrupt signal input.
Allowing Changes to Acceleration/Deceleration Time during Jogging
Previous versionPresent version (Ver. 2.0 or later)
The only speed changes allowed during jogging were those made with the speed command. If acceleration/deceleration times
changed, the changes were not effective until
the next JOG command. The deceleration time
set when the JOG operation was started was
used for accelerations/decelerations for speed
changes as well as for JOG stops or deceleration stops.
When executing multiple starts during direct operation, the acceleration time set for each of the multiple starts is used and the deceleration time set for the first start is used.
The acceleration/deceleration times can be changed and changes
can be made with the speed command as long as the changes are
made before the interrupt signal is input. The acceleration/deceleration times can also be changed during acceleration and deceleration. The deceleration time set for when the interrupt input occurs is
used following interrupt signal input.
In addition to changes made during JOG operation with the speed
command, speed changes can also be made during JOG operation
by changing the acceleration/deceleration times. Accelerations/decelerations can also be changed during acceleration/deceleration. Accelerations/decelerations can also be changed during
acceleration/deceleration to a fixed speed. The deceleration time
set when the stopping the JOG operation is executed is used for
JOG stops or deceleration stops.
Setting Acceleration/Deceleration Time in Axis Parameters as Time Required to Reach Target Speed
Previous versionPresent version
Acceleration/deceleration times could be set
only as the time required for each axis to go
from the initial speed to the maximum speed.
The acceleration/deceleration time can be set in one of the following ways.
• Set as the time required for each axis to go from the initial
speed to the maximum speed (previous setting method).
• Set as the time required for each axis to go from the present
speed to the target speed. (This simplifies calculating acceleration/deceleration times.)
Addition of Easy Backup Function
Previous versionPresent version
There was no easy backup function.The easy backup function of the CPU Unit can be used to automat-
ically back up and restore the following data from/to flash memory
in the PCU along with all data from the CPU Unit using a Memory
Card in the CPU Unit. It can also compare the data. This makes it
easier to back up all PLC data or to prepare backup data in case
Units are replaced.
• Axis parameters
• Sequence data
• Speed data
• Acceleration/deceleration time data
• Dwell time data
• Zone data
NoteData for all Unit axes is stored at the same time.
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■ Enhanced Functions in the Upgrade from Unit Version 2.0 to
Unit Version 2.1
Setting the Number of Unused Axes
Previous versionPresent version (Ver. 2.1 or later)
Emergency stop input wiring was also required
for unused axes.
Setting the number of unused axes in the common parameters
eliminates the need for emergency stop input wiring for unused
axes.
■ Enhanced Functions in the Upgrade from Unit Version 2.1 to
Unit Version 2.2
Setting the CW/CCW Pulse Output Direction
Previous versionPresent version (Ver. 2.2 or later)
The pulse output direction could not be
changed.
Addition of Origin Search Pattern Setting
Previous versionPresent version (Ver. 2.2 or later)
Operation was uneven if a return was performed at the origin proximity and operation
immediately stopped at the origin input signal.
Setting the Position Data When the Origin Signal Stops
Previous versionPresent version (Ver. 2.2 or later)
The stopping point was always 0.The value of the stopping point can be set. Applications in which
Bits for reversing the output direction have been added to the axis
parameter areas. Specifying reversal reverses the output section
and is effective for applications using the same wiring but reversed
coordinates.
Reverse mode 3 has been added to enable stopping at the origin
signal at the proximity speed when a return is performed at the origin proximity.
the stopping point is not 0 do not require presetting the present
position.
■ Enhanced Functions in the Upgrade from Unit Version 2.2 to
Unit Version 2.3
Jog Operation Setting
Previous versionPresent version (Ver. 2.3 or later)
Axes could not be controlled from the CX-Position.
Deviation Counter Reset Output Signal Setting
Previous versionPresent version (Ver. 2.3 or later)
The deviation counter reset output could not
be turned ON and OFF from the CX-Position.
Checking Parameters and Data at Startup
Previous versionPresent version (Ver. 2.3 or later)
Parameters and data were not checked at startup.
The following operations are possible in combination with CX-Position version 2.2 (included with CX-One version 1.1).
• Setting parameters for jog operations (acceleration/deceleration
time and RUN signal allocation)
• Resetting errors
• Turning the RUN signal ON/OFF
• Jogging forward and backward (+jog/
• Monitoring the present position, limit sensor, and other functions
while jog operations are being performed
The following operations are possible in combination with CX-Position version 2.2 (included with CX-One version 1.1).
• Turning ON and OFF the deviation counter reset output
Parameters and data for up to four axes can be checked and up to
four errors (i.e., one per axis) can be detected and output.
This manual describes the operation of the CS1W-NC113/NC133/NC213/NC233/NC413/NC433 Position Control Units and includes the sections described below.
Please read this manual carefully and be sure you understand the information provided before
attempting to install and operate the CS1W-NC113/NC133/NC213/NC233/NC413/NC433 Position
Control Units.
Section 1 introduces the features of the Position Control Unit and explains the system configuration in
which it is used.
Section 2 gives an overview of the procedures required to use the Position Control Unit.
Section 3 provides information on nomenclature and the function of each part, describes the proce-
dures required for wiring and installation, and gives connection examples. Information on using Servo
Relay Units is also provided.
Section 4 provides an overview of the parameter and data settings used in Position Control Unit operation and provides information on memory allocation.
Section 5 explains how to transfer and save parameters and data using the data transfer bits, the
IOWR and IORD instructions, and CX-Position.
Section 6 explains the origin search and origin return operations.
Section 7 provides an overview of direct operation, describes the parameter and data settings
required to perform direct operation, and gives sample programs.
Section 8 provides an overview of memory operation, describes the parameter and data settings
required to perform memory operation, and gives sample programs.
Section 9 describes the following operations: jogging, teaching, interrupt feeding, forced interrupt,
deceleration stop, override, error counter reset output/origin-adjustment command output, backlash
compensation, and software limits.
Section 10 provides examples of programs for using the Position Control Unit.
Section 11 describes how to diagnose and correct errors that can occur during operation.
Section 12 describes methods for maintaining the Position Control Unit.
The Appendices provide information on estimating times and pulses for acceleration and deceleration, a memory map for the common parameter area, error code lists, information on replacing the
C200HW-NC@13, and parameter coding sheets.
!WARNING Failure to read and understand the information provided in this manual may result in per-
sonal injury or death, damage to the product, or product failure. Please read each section
in its entirety and be sure you understand the information provided in the section and
related sections before attempting any of the procedures or operations given.
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Read and Understand this Manual
Please read and understand this manual before using the product. Please consult your OMRON
representative if you have any questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a
period of one year (or other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE
PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which
liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS
WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
xvii
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the
combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying
ratings and limitations of use that apply to the products. This information by itself is not sufficient for a
complete determination of the suitability of the products in combination with the end product, machine,
system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not
intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses
listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or
uses not described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, safety equipment, and installations subject to separate
industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any
consequence thereof.
xviii
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other
reasons.
It is our practice to change model numbers when published ratings or features are changed, or when
significant construction changes are made. However, some specifications of the products may be changed
without any notice. When in doubt, special model numbers may be assigned to fix or establish key
specifications for your application on your request. Please consult with your OMRON representative at any
time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when
tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and does
not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must
correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and
Limitations of Liability.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no
responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.
xix
xx
PRECAUTIONS
This section provides general precautions for using the Position Control Units and related devices.
The information contained in this section is important for the safe and reliable application of the Position Control
Unit. You must read this section and understand the information contained before attempting to set up or operate
a Position Control Unit.
This manual is intended for the following personnel, who must also have
knowledge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of installing FA systems.
• Personnel in charge of designing FA systems.
• Personnel in charge of managing FA systems and facilities.
2General Precautions
The user must operate the product according to the performance specifications described in the operation manuals.
Before using the product under conditions which are not described in the
manual or applying the product to nuclear control systems, railroad systems,
aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used
improperly, consult your OMRON representative.
Make sure that the ratings and performance characteristics of the product are
sufficient for the systems, machines, and equipment, and be sure to provide
the systems, machines, and equipment with double safety mechanisms.
This manual provides information for using the Position Control Unit. Be sure
to read this manual before attempting to use the Unit and keep this manual
close at hand for reference during operation.
!WARNING It is extreme important that Position Control Units and related devices be used
for the specified purpose and under the specified conditions, especially in
applications that can directly or indirectly affect human life. You must consult
with your OMRON representative before applying Position Control Units and
related devices to the above mentioned applications.
3Safety Precautions
!WARNING Never attempt to disassemble any Units while power is being supplied. Doing
so may result in serious electric shock.
!WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do
so may result in malfunction, fire, or electric shock.
!WARNING Never touch any of the terminals while power is being supplied. Doing so may
result in serious electric shock.
!WARNING Provide safety measures in external circuits (i.e., not in the Programmable
Controller or Position Control Unit) to ensure safety in the system if an abnormality occurs due to malfunction of the PLC, malfunction of the PCU (Position
Control Unit), or external factors affecting the operation of the PLC or PCU.
Not providing sufficient safety measures may result in serious accidents.
xxii
• Emergency stop circuits, interlock circuits, limit circuits, and similar safety
measures must be provided in external control circuits.
Operating Environment Precautions4
• The PLC will turn OFF all outputs when its self-diagnosis function detects
any error or when a severe failure alarm (FALS) instruction is executed.
As a countermeasure for such errors, external safety measures must be
provided to ensure safety in the system.
• The PLC or PCU outputs may remain ON or OFF due to deposits on or
burning of the output relays, or destruction of the output transistors. As a
countermeasure for such problems, external safety measures must be
provided to ensure safety in the system.
• When the 24-VDC output (service power supply to the PLC) is overloaded
or short-circuited, the voltage may drop and result in the outputs being
turned OFF. As a countermeasure for such problems, external safety
measures must be provided to ensure safety in the system. External
safety measures must also be taken to ensure safety in the event of unexpected operation when connecting or disconnecting the PCU’s connectors.
!Caution When positioning to a position determined using the teaching function, set the
position designation setting in the positioning sequence to absolute positioning. If it is set to relative positioning, positioning will be performed to a position
other than the one obtained with the teaching function.
!Caution Execute online edit only after confirming that no adverse effects will be
caused by extending the cycle time. Otherwise, the input signals may not be
readable.
!Caution Confirm the safety of the destination node before transferring a program to the
node or changing the contents of I/O memory. Doing either of these without
confirming safety may result in injury.
!Caution Do not save data into the flash memory during memory operation or while the
motor is running. Otherwise, unexpected operation may be caused.
!Caution Do not reverse the polarity of the 24-V power supply. The polarity must be cor-
rect. Otherwise, the motor may start running unexpectedly and may not stop.
!Caution Make sure the unit version of the Position Control Unit is 2.2 or later before
using the CW/CCW Pulse Output Selection Function. Otherwise, the pulse
output may be in the opposite direction from what was intended and the
machine may be damaged.
4Operating Environment Precautions
!Caution Do not operate the control system in the following locations:
• Locations subject to direct sunlight.
• Locations subject to temperatures or humidity outside the range specified
in the specifications.
• Locations subject to condensation as the result of severe changes in temperature.
• Locations subject to corrosive or flammable gases.
• Locations subject to dust (especially iron dust) or salts.
xxiii
Application Precautions5
• Locations subject to exposure to water, oil, or chemicals.
• Locations subject to shock or vibration.
!Caution Take appropriate and sufficient countermeasures when installing systems in
the following locations:
• Locations subject to static electricity or other forms of noise.
• Locations subject to strong electromagnetic fields.
• Locations subject to possible exposure to radioactivity.
• Locations close to power supplies.
!Caution The operating environment of the PLC System can have a large effect on the
longevity and reliability of the system. Improper operating environments can
lead to malfunction, failure, and other unforeseeable problems with the PLC
System. Be sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life
of the system.
5Application Precautions
Observe the following precautions when using the PCU or the PLC.
!WARNING Failure to abide by the following precautions could lead to serious or possibly
fatal injury. Always heed these precautions.
• Always connect to a ground of 100 Ω or less when installing the Units. Not
connecting to a ground of 100
• Always turn OFF the power supply to the PLC before attempting any of
the following. Not turning OFF the power supply may result in malfunction
or electric shock.
• Mounting or dismounting Power Supply Units, I/O Units, CPU Units,
Memory Cassettes, or any other Units.
• Assembling the Units.
• Setting DIP switches or rotary switches.
• Connecting cables or wiring the system.
• Connecting or disconnecting the connectors.
!Caution Failure to abide by the following precautions may lead to faulty operation of
the PLC, the PCU. or the system, or could damage the PLC or PCU. Always
heed these precautions.
• Fail-safe measures must be taken by the customer to ensure safety in the
event of incorrect, missing, or abnormal signals caused by broken signal
lines, momentary power interruptions, or other causes.
• Interlock circuits, limit circuits, and similar safety measures in external circuits (i.e., not in the Programmable Controller) must be provided by the
customer.
• Install external breakers and take other safety measures against short-circuiting in external wiring. Insufficient safety measures against short-circuiting may result in burning.
Ω or less may result in electric shock.
xxiv
Application Precautions5
• Install the PCU as far as possible from devices that generate strong highfrequency noise.
• Be sure that all the mounting screws, terminal screws, and cable connector screws are tightened to the torque specified in the relevant manuals.
Incorrect tightening torque may result in malfunction.
• Always use the power supply voltages specified in the operation manuals.
An incorrect voltage may result in malfunction or burning.
• Take appropriate measures to ensure that the specified power with the
rated voltage and frequency is supplied in places where the power supply
is unstable. An incorrect power supply may result in malfunction.
• Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals. Connection of bare stranded wires may result in
burning.
• Leave the label attached to the Unit when wiring. Removing the label may
result in malfunction if foreign matter enters the Unit.
• Remove the label after the completion of wiring to ensure proper heat dissipation. Leaving the label attached may result in malfunction.
• Do not apply voltages to the Input Units in excess of the rated input voltage. Excess voltages may result in burning.
• Do not apply voltages or connect loads to the Output Units in excess of
the maximum switching capacity. Excess voltage or loads may result in
burning.
• Check the user program for proper execution before actually running it on
the Unit. Not checking the program may result in an unexpected operation.
• Be sure that the terminal blocks, Memory Units, expansion cables, and
other items with locking devices are properly locked into place. Improper
locking may result in malfunction.
• Double-check all wiring and switch settings before turning ON the power
supply. Incorrect wiring may result in burning.
• Disconnect the Power Supply Unit’s LG terminal from the GR terminal
when testing insulation resistance and dielectric strength. Not disconnecting the LG and GR terminals may result in burning.
• Confirm that no adverse effect will occur in the system before attempting
any of the following. Not doing so may result in an unexpected operation.
• Changing the operating mode of the PLC (including the setting of the
startup operating mode).
• Force-setting/force-resetting any bit in memory.
• Changing the present value of any word or any set value in memory.
• Resume operation only after transferring to the new CPU Unit the contents of the DM Area, HR Area, and other data required for resuming
operation. Not doing so may result in an unexpected operation.
• Do not pull on the cables or bend the cables beyond their natural limit.
Doing either of these may break the cables.
• Do not place objects on top of the cables or other wiring lines. Doing so
may break the cables.
• Resume operation only after transferring the system parameter data to
the PCU and saving the data to flash memory. Not doing so may result in
an unexpected operation.
• Confirm that set parameters and data operate properly.
xxv
Conformance to EC Directives6
• Check the pin numbers before wiring the connectors.
• Perform wiring according to specified procedures.
• Before touching a Unit, be sure to first touch a grounded metallic object in
order to discharge any static build-up. Not doing so may result in malfunction or damage.
• Do not drop the product or subject it to excessive vibration or shock.
6Conformance to EC Directives
6-1Applicable Directives
•EMC Directives
6-1-1Concepts
EMC Directives
OMRON devices that comply with EC Directives also conform to the related
EMC standards so that they can be more easily built into other devices or
machines. The actual products have been checked for conformity to EMC
standards (see the following note). Whether the products conform to the standards in the system used by the customer, however, must be checked by the
customer.
EMC-related performance of the OMRON devices that comply with EC Directives will vary depending on the configuration, wiring, and other conditions of
the equipment or control panel in which the OMRON devices are installed.
The customer must, therefore, perform final checks to confirm that devices
and the overall machine conform to EMC standards.
Note Applicable EMC (Electromagnetic Compatibility) standards are as follows:
The PCUs comply with EC Directives. To ensure that the machine or device in
which an PCU is used complies with EC directives, the PCU must be installed
as follows:
1,2,3...
1. The PCU must be installed within a control panel.
2. Reinforced insulation or double insulation must be used for the DC power
supplies used for the communications and I/O power supplies.
3. PCUs complying with EC Directives also conform to the Common Emission Standard (EN
regulations), countermeasures will vary depending on the devices connected to the control panel, wiring, the configuration of the system, and
other conditions. The customer must, therefore, perform final checks to
confirm that devices and the overall machine conform to EC Directives.
61000-6-4). With regard to the radiated emission (10-m
6-1-3Installation Within Control Panel
Unnecessary clearance in cable inlet or outlet ports, operation panel mounting holes, or in the control panel door may cause electromagnetic wave leakage or interference. In this case, the product may fail to meet EC Directives. In
order to prevent such interference, fill clearances in the control panel with conductive packing. (In places where conductive packing comes in contact with
the control panel, ensure electrical conductivity by removing the paint coating
or masking these parts when painting.)
(Radiated emission: 10-m regulations)
xxvi
SECTION 1
Introduction
This section introduces the features of the Position Control Unit and explains the system configuration in which it is used.
These Position Control Units are CS-series Special I/O Units. The Units
receive instructions from the Programming Controller’s Work Area and output
pulse trains to various motor drivers for positioning.
CS1W-NC2(3
(2-axis control)
CS1W-NC1(3
(1-axis control)
1-1-1Functions
High-speed ResponseThe Position Control Unit (PCU) responds to instructions from the CPU Unit
within 2 ms. (For more details on the conditions required, refer to
Performance Characteristics
.)
Appendix A
Memory Operation and
Direct Operation
Number of Control Axes
and Output Type
Motor Driver Selectable by
Axis
Interrupt FeedingWhen an interrupt is input during pulse output, positioning is continued for
Position and Speed
Control Ranges
There are two different control methods. The first is memory operation, in
which the data required for positioning is transferred to the PCU and then
specified for position control, and the second is direct operation, in which the
target position and target speed are set each time from the CPU Unit.
The PCU is available with 1, 2, or 4 control axes. With 2-axis and 4-axis models, linear interpolation is possible for all axes. Either open collector output or
line driver output is available for any number of control axes. Choose the most
appropriate model according to the number of controlled axes and the desired
output type.
A stepping motor driver and a pulse train input type Servo Drive can be connected to the PCU. It is possible to set different operating modes for different
axes allowing the combined use of different types of motor driver.
only a specified amount and then stopped.
Positioning can be performed for positions in the range –1,073,741,823 to
1,073,741,823 pulses and speeds in the range 1 to 500,000 pps in 1-pulse
units. This means that positioning is possible over a wide range with speed
precision.
2
System ConfigurationSection 1-2
Data Capacity and BackupThe amounts of data that can be set for memory operation are shown in the
following table:
Type of dataNumber of data items per axis
Positioning sequences, speeds, positions100
Acceleration times, deceleration times9
Dwell times19
Zones3
These data items are transferred to the PCU for use. Once they have been
transferred to the PCU they can be saved to the PCU’s flash memory, so there
is no need for battery maintenance.
NoteThere is a limit to the service life of the flash memory. A total of up to 100,000
data saving operations can be performed.
CX-PositionThe PCU is compatible with the Windows-based NC Support Tool (CX-Posi-
tion) that enables setting of the PCUs in a Windows environment. Using the
CS-series single-port multi-access function, creation and transfer of parameters and data for PCUs as well as operation monitoring are possible from the
same environment as the software used for CPU Unit ladder programming
(CX-Programmer).
Simple Programming
Using Function Blocks
(See note.)
NoteRefer to the following documents for details on function blocks.
Function blocks can be used to simplify operation of the PCU in programming
complicated diagrams. There are function blocks for origin searches, ABSOLUTE MOVEMENT commands, and RELATIVE MOVEMENT commands.
• Using Function Blocks for the First Time
Function Block Introduction Guide (R133)
• Using Function Blocks for Specific Devices
OMRON FB Library Start-up Guide (R123)
OMRON FB Library Reference Manual (W442)
1-2System Configuration
The PCU receives control signals (CW limit, CCW limit, origin, origin proximity, emergency stop, and external interrupt input signals) from devices and a
control panel, and outputs pulse trains to stepping motor drivers and Servo
Drives.
Note(1) A dedicated cable is available for connecting the PCU to the dedicated
terminal block.
(2) Origin input signals cannot be used as external connection terminals with
dedicated terminal blocks. Connect the Z-phase signal to the Servo Drive
using the dedicated cable. The connecting cable required between the
PCU or dedicated terminal block and stepping motor driver is not provided.
4
Basic OperationsSection 1-3
1-3Basic Operations
The PCU’s operations are as follows:
Position
Control Unit
functions
Position controlMemory
operation
Direct operation
Interrupt feeding
Speed control
Other operationsOrigin search
Independent
Automatic
Continuous
Jogging
Teaching
Override
Present position
preset
Backlash
compensation
Zone setting
Deceleration stop
1-3-1Position Control
Positioning can be executed with either an absolute value (i.e., to an absolute
position from the origin) or with an incremental value (i.e., to a relative position
from the present position).
There are two methods for positioning: memory operation and direct operation. Interrupt feeding, in which operation proceeds for a specified amount
after an interrupt input, is also possible.
Direct OperationWith direct operation, positions and speeds are set directly from the CPU Unit
(ladder program), and positioning is executed according to operating commands. It is also possible to change the speed and send commands to move
5
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