Omron H8PS User manual

H8PS
Cam Positioner
OPERATION MANUAL
Cat. No. Z199-E1-02
OUTLINE
INSTALLATION
HOW TO USE THE
BASIC FUNCTIONS
HOW TO USE THE
ADVANCED FUNCTIONS
APPENDICES

I
Cam Positioner
H8PS
OPERATION MANUAL

II
PREFACE
Thank you for purchasing an H8PS Cam Positioner.
The H8PS Cam Positioner is a compact and highly functional controller for detecting angles of rotation. Its
development has drawn on OMRON's advanced control technology and expertise in manufacturing
various types of controllers.
This Operation Manual describes how to use the H8PS Cam Positioners.
Before using the H8PS Cam Positioner, read this manual carefully so that you can use it correctly. Keep
the manual close at hand so that you can refer to it whenever necessary.
●Intended Audience
The Operation Manual is intended for the following readership.
• People in charge of introducing FA devices
• People who design FA systems
• People who install or connect FA devices
• People who manage working FA installations
Please note that persons who use this product must have sufficient knowledge of electrics.
Notice
(1) All rights reserved. No part of this manual may be reprinted or copied without the prior written
permission of OMRON.
(2) The specifications and other information in this manual are subject to change without notice for purposes
of improvement.
(3) Considerable care has been taken in the preparation of this manual; however, OMRON assumes no
responsibility or liability for any errors or inaccuracies that may appear. In the event that a problem is
discovered, please contact one of the Omron offices or agents listed at the end of the manual, and
provide the catalogue number shown on the cover of the manual.

III
Terms and Conditions Agreement
Warranty, Limitations of Liability
Warranties
●Exclusive
Warranty Omron's exclusive warranty is that the Products will be free from defects in materials
and workmanship for a period of twelve months from the date of sale by Omron (or
such other period expressed in writing by Omron). Omron disclaims all other war-
ranties, express or implied.
●Limitations OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR
IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES
THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY
MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or
expenses based on infringement by the Products or otherwise of any intellectual
property right.
●Buyer Remedy Omron's sole obligation hereunder shall be, at Omron's election, to (i) replace (in
the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Prod-
uct, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-
complying Product; provided that in no event shall Omron be responsible for war-
ranty, repair, indemnity or any other claims or expenses 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 inap-
propriate modification. Return of any Products by Buyer must be approved in writing
by Omron before shipment. Omron Companies shall not be liable for the suitability
or unsuitability or the results from the use of Products in combination with any elec-
trical or electronic components, circuits, system assemblies or any other materials
or substances or environments. Any advice, recommendations or information given
orally or in writing, are not to be construed as an amendment or addition to the
above warranty.
See http://www.omron.com/global/ or contact your Omron representative for pub-
lished information.
Limitation on
Liability; Etc OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCI-
DENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUC-
TION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE
PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY,
NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of
the Product on which liability is asserted.

IV
Application Considerations
Suitability of
Use Omron Companies shall not be responsible for conformity with any standards,
codes or regulations which apply to the combination of the Product in the Buyer's
application or use of the Product. At Buyer's request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which
apply to the Product. This information by itself is not sufficient for a complete deter-
mination of the suitability of the Product in combination with the end product,
machine, system, or other application or use. Buyer shall be solely responsible for
determining appropriateness of the particular Product with respect to Buyer's appli-
cation, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT 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 PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE
INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
Programmable
Products Omron Companies shall not be responsible for the user's programming of a pro-
grammable Product, or any consequence thereof.
Disclaimers
Performance
Data Data presented in Omron Company websites, catalogs and other materials is pro-
vided as a guide for the user in determining suitability and does not constitute a war-
ranty. It may represent the result of Omron's test conditions, and the user must
correlate it to actual application requirements. Actual performance is subject to the
Omron's Warranty and Limitations of Liability.
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 part numbers when
published ratings or features are changed, or when significant construction changes
are made. However, some specifications of the Product may be changed without
any notice. When in doubt, special part numbers may be assigned to fix or establish
key specifications for your application. Please consult with your Omron's represen-
tative at any time to confirm actual specifications of purchased Product.
Errors and
Omissions Information presented by Omron Companies has been checked and is believed to
be accurate; however, no responsibility is assumed for clerical, typographical or
proofreading errors or omissions.

V
Definition of Safety Notices and Information
The following notation is used in this manual to provide precautions required to
ensure safe usage of the product.
The safety precautions that are provided are extremely important to safety. Always
read and heed the information provided in all safety precautions.
The following notation is used.
●Symbols
Precautions
Caution Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury or in
property damage.
Symbol Meaning
Caution
General Caution
Indicates non-specific general cautions, warnings
and dangers.
Electrical Shock Caution
Indicates possibility of electric shock under spe-
cific conditions.
Prohibition General Prohibition
Indicates non-specific general prohibitions.
Mandatory
Caution
General Caution
Indicates non-specific general cautions, warn-
ings, and dangers.

VI
●Precautionary Information
CAUTION
Do not touch the terminals when power is being supplied.
For Surface-mounting H8PS, always connect the terminal cover
for after completing wiring. Otherwise, minor injury due to electric
shock may occasionally occur.
Do no allow metal fragments, lead wire scraps, or chips from pro-
cessing during installation to fall inside the H8PS. Otherwise,
minor electric shock, fire, or malfunction may occasionally occur.
Tighten terminal screws to a torque of 0.8 N·m so that they do not
become loose.
Minor fires or malfunction may occasionally occur.
For 16- and 32-output Models, leave the protective label attached
to the H8PS when wiring. Removing the label before wiring may
occasionally result in fire if foreign matter enters the Unit.
Remove the label after the completion of wiring to ensure proper
heat dissipation. Leaving the label attached may occasionally
result in fire.
Do not disassemble, modify, or repair the H8PS or touch any of
the internal parts. Otherwise, minor electric shock, fire, or mal-
function may occasionally occur.

VII
Observe the following items to ensure the safe use of this product.
Environmental Precautions
• Store the H8PS within specified ratings. If the H8PS has been stored at tempera-
tures -10°C or lower, let it stand for 3 hours or longer at room temperature before
turning ON the power supply.
• Use the H8PS within the specified ratings for operating temperature and humidity.
• Do not operate the H8PS in locations subject to sudden or extreme changes in
temperature, or locations where high humidity may result in condensation.
• Do not use the H8PS in locations subject to vibrations or shock. Extended use in
such locations may result in damage due to stress.
• Do not use the H8PS in locations subject to excessive dust, corrosive gas, or
direct sunlight.
• Install the H8PS well away from any sources of static electricity, such as pipes
transporting molding materials, powders, or liquids.
• The H8PS is not waterproof or oil resistant.
Do not use it in locations subject to water or oil.
• The life expectancy of internal components may be reduced if the H8PS is
mounted side-by-side.
• Do not use organic solvents (such as paint thinner or benzine), strong alkaline, or
strong acids because they will damage the external finish.
Usage Precautions
• Install a switch or circuit breaker that allows the operator to immediately turn OFF
the power, and label it to clearly indicate its function.
• Pay careful attention to polarity to avoid wrong connections when wiring
terminals.
• Do not connect more than two crimp terminals to the same terminal.
• Use the specified wires for wiring.
Applicable Wires
AWG24 to AWG18 (cross-sectional area of 0.208 to 0.832 mm2)
Solid or twisted wires of copper
• Do not connect loads that exceed the rated output current. The output elements
may be destroyed, possibly resulting in short-circuit or open-circuit faults.
• Always connect a diode to protect against counterelectromotive force when using
an inductive load. Counterelectromotive force may destroy output elements,
possibly resulting in short-circuit or open-circuit faults.
• Use the specified cables to connect outputs.
• Do not install input lines in the same duct or conduit as power supply or other
high-voltage lines. Doing so may result in malfunction due to noise. Separate the
input lines from high-voltage lines.
Precautions for Safe Use

VIII
• Internal elements may be destroyed if a voltage outside the rated voltage is
applied.
• Maintain voltage fluctuations in the power supply within the specified range.
• Use a switch, relay, or other contact so that the rated power supply voltage will be
reached within 0.1 s. If the power supply voltage is not reached quickly enough,
the H8PS may malfunction or outputs may be unstable.
• Do not turn OFF the power supply when changing or deleting settings. The
contents of the EEPROM may be corrupted.

IX
(1) When using the Y92C-30 Parallel Operation Adapter for parallel operation, do
not connect more than two Positioners to the same encoder.
(2) Do not subject the connectors of outputs, encoder on the Positioner to more
than 30 N of force.
(3) Keep the USB cable connector straight when connecting or disconnecting it.
Otherwise the Positioner or connector may be damaged.
(4) Confirm the waveform of the power supply circuit and install a surge absorber.
Surge or noise applied to the power supply may destroy internal elements or
cause malfunctions.
(5) Switch the power supply circuit with a device rated at 3.5 A or higher.
(6) Inrush current of approximately 3.5 A will flow for a short period of time when
the power supply is turned ON. The Positioner may not start if the capacity of
the power supply is not sufficient. Be sure to use a power supply with sufficient
capacity.
(7) EEPROM is used as memory when the power is interrupted. The write life of
the EEPROM is 100,000 writes. The EEPROM is written when settings are
changed, settings are deleted, or the resolution is changed.
(8) Make sure that all settings are appropriate for the application. Unexpected
operation resulting in property damage or accidents may occur if the settings
are not appropriate.
(9) Inputs signals may be accepted, not accepted, or unstable for the following
times when the power supply is turned ON or OFF. Set the system to allow
leeway in the timing of input signals. Approximately 1 second is required from
the time the power supply is turned ON until outputs are made.
For information on other timing, refer to "Appendix D Operation Timing Chart"
in this manual.
(10) If you use the output cable, connect the minus (−) terminal and all of the COM
terminals. For a PNP output, connect all Vs terminals. If you do not connect all
of the terminals with the same name, the current will be concentrated on the
connected terminals and the ratings of the parts may be exceeded.
Precautions for Correct Use
Unstable
Unstable Not accepted
Accepted
Input status
Power
supply
0 to 1.3 s
ON
OFF
5 ms 0 to 1 s

X
(11) When connecting only one Positioner to the Parallel Operation Adapter,
connect the cable with the mark.
Connected to the H8PS Connected to the H8PS
Y92C-30
From the Dedicated Absolute Encoder

XI
About this Manual
■Contents of the Manual
■Indication of Applicable Models
In this manual the applicable models in a particular context are sometimes
indicated in the following way.
Section Contents
Section 1 OUTLINE Explains the features of the H8PS Cam Positioner and
gives outlines of its functions.
Section 2 INSTALLATION Explains how to mount and wire an H8PS Cam Positioner,
and how to connect it to an encoder.
Section 3 HOW TO USE THE
BASIC FUNCTIONS Explains the operating procedures to take the H8PS Cam Positioner up to the point where it is ready for operation.
The H8PS Cam Positioner can be operated using just the
basic functions described in this Section.
Section 4 HOW TO USE THE
ADVANCED FUNCTIONS Explains the operating procedures for getting the most out of the convenient and higher-level functions that your
H8PS Cam Positioner offers.
APPENDICES Presents specifications, error messages, and other infor-
mation.
Models with 8 cam outputs (H8PS-8)
Models with 16 cam outputs (H8PS-16)
Models with 32 cam outputs (H8PS-32)
8 output
16 output
32 output

XII
The revision code of this manual can be found appended to the manual number
(referred to as the "catalog number") at the bottom left of the front and back covers.
Revision History
Cat. No. Z199-E1-02
Revision code Date of revision Page, details of change
01 May 2004 First edition
02 April 2015 Made corrections related to revision of EN
61326-1.
Page A-2: Added information on
electromagnetic environment.
Corrected mistakes.
Revision code

XIII
Contents
PREFACE - - - - - - - - - - - - - - - - - - - - - - - - - - - II
Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - V
Precautions for Safe Use - - - - - - - - - - - - - - - - VII
Precautions for Correct Use - - - - - - - - - - - - - - -IX
About this Manual - - - - - - - - - - - - - - - - - - - - - -XI
Revision History - - - - - - - - - - - - - - - - - - - - - - XII
Section 1 OUTLINE
1.1 Outline ........................................................................................................1-2
1.2 Features .....................................................................................................1-3
1.3 System Configuration .................................................................................1-7
1.3.1 8-output Model ...............................................................................1-7
1.3.2 16-/32-output Model .......................................................................1-8
1.4 Table of Product Models .............................................................................1-9
1.5 Nomenclature ...........................................................................................1-11
1.5.1 8-output Models (H8PS-8£) .........................................................1-11
1.5.2 16-/32-output Models (H8PS-16£/-32£) .......................................1-12
Section 2 INSTALLATION
2.1 Designing the System ................................................................................2-2
2.1.1 Selecting the Encoder ....................................................................2-2
2.1.2 Selecting the Output Cable ............................................................2-5
2.2 Mounting (Cam Positioner) ........................................................................2-6
2.2.1 Dimensions ....................................................................................2-6
2.2.2 Mounting Method ...........................................................................2-8
2.2.3 Encoder Connecting Direction .....................................................2-14
2.3 Mounting (Encoder) .................................................................................2-15
2.3.1 Dimensions and Mounting Method ..............................................2-15
2.3.2 Accessories (Order Separately) ...................................................2-18
2.3.3 Safety Precautions (Encoder) ......................................................2-20
2.3.4 Parallel Input Adapters (Order Separately) ..................................2-22
2.4 Wiring .......................................................................................................2-24
2.4.1 System Connection Diagram .......................................................2-24
2.4.2 Terminal Arrangement .................................................................2-25
2.4.3 Input Connections ........................................................................2-29
2.4.4 Output Connections ....................................................................2-30
Section 3 HOW TO USE THE BASIC FUNCTIONS
3.1 Operation Basics ........................................................................................3-2
3.2 Preparatory Steps before Starting Operation .............................................3-4
3.3 DIP Switch Setting .....................................................................................3-5
3.3.1 Selecting the Encoder Resolution ..................................................3-5
3.3.2 Setting the Rotation Direction ........................................................3-6
3.4 Setting the Origin .......................................................................................3-7
3.5 Setting the ON/OFF Angles .......................................................................3-8
3.5.1 Setting the ON/OFF Angles in the Manual Mode (Key Input) ......3-10
3.5.2 Setting the ON/OFF Angles in the Teach Mode ...........................3-11
3.6 Checking the Operation Timing ................................................................3-12

XIV
3.7 Operation .................................................................................................3-13
3.8 Clearing the Settings ................................................................................3-15
3.8.1 Clearing Items Individually ...........................................................3-16
3.8.2 All Clear (Deletes all programming) .............................................3-17
3.9 Checking the Settings in the Run Mode ...................................................3-18
3.10 Switching the Display between Speed and Angle ....................................3-19
3.11 All Protection Function .............................................................................3-20
Section 4 HOW TO USE THE ADVANCED FUNCTIONS
4.1 Mode Transitions........................................................................................ 4-2
4.2 Advance Angle Compensation (ADV) Function
................................................................................................................... 4-4
4.2.1 What Is the Advance Angle Compensation (ADV) Function? ........4-4
4.2.2 Specifications of Advance Angle Compensation Function Setting 4-5
4.2.3 Operation .......................................................................................4-9
4.3 Prohibiting Outputs ...................................................................................4-11
4.4 Pulse Output (F1/F2)................................................................................ 4-12
4.4.1 Setting the Number of Pulse Outputs (F1) ...................................4-13
4.4.2 Setting the Pulse Output Start Angle (F2) ...................................4-14
4.5 Speed Alarm (F3/F4)................................................................................ 4-15
4.5.1 Setting the Speed Alarm (Upper Limit) (F3) ................................4-16
4.5.2 Setting the Speed Alarm (Lower Limit) (F4) .................................4-18
4.6 Step Number Limit (F5)............................................................................ 4-20
4.7 Cam Protection (F6)................................................................................. 4-23
4.8 Bank Function (F7/F8/F9) ........................................................................ 4-24
4.8.1 What Is the Bank Function? .........................................................4-24
4.8.2 Switching the Active Bank ............................................................4-25
4.8.3 Designating the Bank Using the Keys ..........................................4-27
4.8.4 Bank Switching Timing .................................................................4-28
4.8.5 Enabling the Bank (F7) ................................................................4-29
4.8.6 Selecting the Bank Switching Method (F8) ..................................4-30
4.8.7 Bank Copy (F9) ............................................................................4-31
4.9 E24 Detection Enable/Disable (F10)........................................................ 4-32
APPENDICES
Appendix A Specifications (Ratings) ..............................................................A-2
Appendix B Troubleshooting ..........................................................................A-5
Appendix C List of Settings ..........................................................................A-11
Appendix D Operation Timing Chart .............................................................A-14
Appendix E Angle Data Table (256 Resolution) ...........................................A-16
Appendix F Coding Sheet ............................................................................A-17

1-1
OUTLINE
Section 1 OUTLINE
1.1 Outline ...............................................................................1-2
1.2 Features.............................................................................1-3
1.3 System Configuration ........................................................1-7
1.4 Table of Product Models....................................................1-9
1.5 Nomenclature ..................................................................1-11

Section 1 OUTLINE
1-2
OUTLINE
1.1 Outline
The H8PS Cam Positioner is an electronic cam switch that allows you to make complicated ON/OFF angle
settings in a simple operation.
Conventionally, a combination of a mechanical cam and a limit switch (or photoelectric sensor) was used
to detect angles of rotation.
This conventional method, however, required a very cumbersome process when adjusting an angle.
The H8PS Cam Positioner detects angles of rotation using an absolute encoder (a sensor that detects the
absolute angle of rotation) to turn the output signal on and off at the preset ON/OFF angles (referred to as
the "cam program").
The H8PS Cam Positioner can replace existing mechanical cam switches.
The H8PS Cam Positioner offers a number of advantages over a cam positioner unit of a PLC (program-
mable logic controller), including its easy-to-read display and the simple procedure for changing settings.
Also you do not have to consider the adverse affect of scan time.
Timing control using a
mechanical cam switch is
cumbersome when adjusting
and setting angles...
Cam Program (Bank No. 7)
Cam Program (Bank No. 2)
Cam Program (Bank No. 1)
Cam Program (Bank No. 0)
Cam output
(cam number) Step 0 Step 1 Step 9
ON angle OFF angle
145°90°135°225°270°315°
20°90°135°180°
32 90°225°270°285°315°345°
OFF angle OFF angleON angle ON angle
Step 0 Step 0
Step 0
Step 1
Step 1 Step 9
Cam output 1
Cam output 2
Cam output 32
0°45°90°135°180°225°270°315°0°45°
Step 0
Step 1 Step 9
Electronic cam switch
CHECK
CAM
STEP
CAM
STEP

1.2 Features
1-3
OUTLINE
1.2 Features
The H8PS Cam Positioner offers the features described below.
For details, refer to Sections 3 and 4 in this Operation Manual.
■Basic Functions
The basic functions described below are common to all 8-/16-/32-
output models.
●Available in three
series with
different numbers
of cam outputs -
8/16/32
There are three series of the H8PS Cam Positioner providing different
numbers of outputs, i.e., 8, 16 or 32 outputs. The number of outputs
can be expanded to a maximum of 64 (using two units of 32-output
model) by using a Y92C-30 Parallel Input Adapter, so that the most
appropriate model may be chosen to suit the scale and application of
the equipment.
The size of each cam positioner unit is a compact 1/4-DIN size for all
three series for space-saving installation.
The wide range of models also allows you to choose the most suitable
mounting method (flush-mounting model or surface-mounting model),
configuration of outputs (NPN or PNP), and panel language (Japanese
or English).
●Choice of
resolutions
(256/360/720)
You can select the resolution of the absolute encoder from three levels:
256, 360, or 720. The angle of rotation can be controlled in units as
small as 0.5°(at a resolution of 720).
●Suitable for high-
speedoperationup
to 1600 r/min
Since the H8PS Cam Positioner is able to respond in high-speed
operation up to a maximum of 1600 r/min (at a resolution of 256 or
360), it can be used in a wide range of applications.
8 output 16 output 32 output
CHECK
CAM STEP
CAM
STEP
96mm
96mm
8-output
model 16-output model 32-output model
CHECK
CAM STEP
CAM
STEP
CHECK
CAM STEP
CAM
STEP
CHECK
CAM STEP
CAM
STEP
Mounting on panel surface Mounting in panel
CAM STEP
CAM
STEP
CAUTION
30.5°
ON angle
180.5°
OFF angle
180.5
180.530.5
1
2
SV
PRG
OFF
CAM STEP
High setting accuracy:
0.5
°
units

Section 1 OUTLINE
1-4
OUTLINE
●Can be used as a
rotation meter
usingtherotational
speed display
function
The H8PS Cam Positioner can always display the rotational speed and
present angle on the same display screen. It is also possible to
display the rotational speed in enlarged characters as Main display. In
applications where a rotation meter is independently installed,
installing one H8PS Cam Positioner can satisfy the user's require-
ments.
●Can be connected
at a distance of up
to 100 m from the
control target
equipment
The encoder cable can be extended to a length of up to 100 m.
Operation is reliable even if the cam positioner is installed at a
distance from the control target equipment (encoder mounting
position).
●Facility to set the
desired number of
output pulses and
the desired pulse
output starting
angle
You can output the desired number of pulses at the desired timing
during one turn of the encoder. Since a variety of devices can be
connected to the cam positioner and it is easy to set the pulse output
starting angle, it has many applications in addition to displaying
revolution speeds, such as setting the timing of systems.
Refer to "4.4 Pulse Output (F1/F2)".
264
1580
r/ min
PV
ST
RUN
CAM STEP
1580
264
r/min
PV
ST
RUN
CAM STEP
Switchable
Present angle
Rotational speed Present angle
Rotational speed
12 7 12 7
CHECK
CAM STEP
CAM
STEP
Max. 100 m ! Encoder cable
Pulse output
PLC
Rotation meter
CHECK
CAM STEP
CAM
STEP