Omron K3NC DATASHEET
Cat.No. N95–E1–1
K3NC
Up/Down Counting Meter
OPERATION MANUAL
K3NC Up/Down Counting Meter
Operation Manual
Produced January 1998
Notice:
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 the product.
DANGER Indicates information that, if not heeded, is likely to result in loss of life or serious injury.
!
WARNING Indicates information that, if not heeded, could possibly result in loss of life or serious injury .
!
Caution Indicates information that, if not heeded, could result in relatively serious or minor injury, dam-
!
age to the product, or faulty operation.
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 “PC” means Programmable Controller and is not used as an abbreviation for anything else.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of
information.
OMRON, 1998
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any
form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of 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 operation
of the product.
1, 2, 3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
v
TABLE OF CONTENTS
PRECAUTIONS xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 General Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Safety Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Application Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Noise Prevention xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1 Features 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 Front of the Meter 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 Rear of the Meter 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 Modes 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5 Communications Function 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2
Setup 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1 Mounting 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 Input Block 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3 Output Board 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3
Parameter Setting 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 Overview 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Setting Mode 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Protect Mode 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4
Operations in RUN Mode 63. . . . . . . . . . . . . . . . . . . . . . . . .
4-1 Displaying and Changing Setting Values 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 External Input Signals 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5
Useful Functions 69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Teaching Function 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Output Test 74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3 Maintenance Mode 75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6
BCD Output 77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1 Connectors 78. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 Timing Charts 81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7
Troubleshooting 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1 Items to Be Checked First 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2 Display 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendices
A Specifications 85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B List of Settings 89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Available Models 91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D Available Parameters 93. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E Setting Examples 95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vii
TABLE OF CONTENTS
Index 97. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Revision History 101. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii
About this Manual:
This manual describes the installation and operation of the K3NC Up/Down Counting Meter 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 K3NC.
Section 1 describes the functions of the K3NC. The main components are also described.
Section 2 provides instructions required for mounting and wiring the K3NC.
Section 3 provides instructions for setting the parameters of the K3NC.
Section 4 provides instructions for operating the K3NC in RUN mode.
Section 5 provides information on the teaching function, output test, and maintenance mode.
Section 6 provides information on the use of the K3NC with the BCD Output Board.
Section 7 provides information for troubleshooting the K3NC
The Appendices provide specifications, a list of settings, a list of standard models, and a list of available
menu items.
!
WARNING Failure to read and understand the information provided in this manual may result in
personal 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.
ix
PRECAUTIONS
This section provides precautions for using the K3NC Up/Down Counting Meter and related devices.
The information contained in this section is important for the safe and reliable application of the K3NC. Y ou must r ead
this section and understand the information contained before attempting to set up or operate the K3NC.
1 General Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Safety Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Application Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Noise Prevention xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
xi
1 General 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.
Be sure to read this manual before attempting to use the product and keep this
manual close at hand for reference during operation.
2 Safety Precautions
WARNING Never attempt to disassemble any Units while power is being supplied. Doing so
!
may result in serious electrical shock or electrocution.
WARNING Never touch any of the terminals while power is being supplied. Doing so may
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result in serious electrical shock or electrocution.
3SectionApplication Precautions
3 Application Precautions
Observe the following precautions when using the product.
• Always use the power supply voltage specified in the specifications.
• Do not use the product in locations subject to flammable gases or combustible
objects.
• Be sure to confirm terminal names when wiring.
• Be sure to tighten the screws on the terminal blocks.
Observe the following precautions when mounting the product.
• Mount the product on level surfaces.
• Mount the product on a panel which has a thickness of 1 to 3.2 mm.
Do not mount the product in the following places.
• Locations subject to strong shock or vibration.
• Locations subject to temperature or humidity exceeding the rated levels or
where icing is liable to occur.
• Locations subject to dust.
• Locations subject to corrosive gases (particularly sulfuric gases or ammonium
gases).
• Locations subject to direct sunlight or outdoor conditions.
• Locations near devices (high-frequency welders or high-frequency sewing
machines) that produce high-frequency noise.
xii
4 Noise Prevention
Provide the following countermeasures when using the product in an environment where the product is exposed to noise.
• Countermeasures for protecting the product against high-frequency noise or
abnormal voltages.
4SectionNoise Prevention
Line filter
Up/Down Counting Meter
+++
Signal
input
–
Up/Down Counting Meter
Power
input
Power
input
• Countermeasures for protecting the product against inductive noise produced
from the input line.
+
Up/Down Counting Meter
–
2-conductor shield wire
xiii
SECTION 1
Introduction
This section describes the functions of the K3NC. The main components are also described. Refer to the remaining sections of
this manual for the operation of the K3NC and its menus in detail.
1-1 Features 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 Front of the Meter 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 Rear of the Meter 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 Modes 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5 Communications Function 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
Features Section 1-1
1-1 Features
The K3NC used in combination with an incremental rotary encoder calculates
and outputs the amount of forward or reverse revolutions.
Input and Output Modes
Linear Output
BCD Output A digital data output format where every four binary bits is numerically equivalent
Communications Output
Prescaling The number of counts is converted into a value within a specified range.
Bank Function Four prescaling values and four set values are stored in the banks of the K3NC
Compensation Function The compensation signal forcibly resets the value to the preset compensation
RESET Function When the RESET signal turns ON, the present counting value will be set to zero.
Power Failure Memory
The K3NC is equipped with two input modes, for individual inputs and phase-difference inputs, and two output modes, ALL-H mode and ALL-L mode.
Refer to page 48.
to one decimal digit.
Refer to Section 6 BCD Output.
Refer to the Communications Manual.
Refer to the following for the relationship of the number of output counts versus
the number of input counts and the prescaling value.
Count value = Number of input counts x Prescaling value
For example, if the prescaling value is 0.01, 100 counts will be counted as a
single unit (i.e., count value = 100 x 0.01 = 1).
and can be selected with bank selection input.
value.
This function keeps the process value at the time of power failure. This function
is enabled or disabled with K3NC setting.
Teaching
Output Test
The K3NC is provided with a teaching function that can set an actual measured
value as a setting value without key input.
This function is useful for setting parameters while checking the operating status
of the K3NC.
The teaching function can be used to set the set and scaling values. It can be
also used to set the linear output range of the K3NC with a Linear Output Board.
Refer to 5-1 Teaching Function for details.
This function is convenient for checking a system to which the K3NC is con-
nected, especially when some inputs cannot be operated. T he K3NC simulates
an input to check the output conditions.
Refer to 5-2 Output Test for details.
2
Front of the Meter
1-2 Front of the Meter
Section 1-2
Comparative output
status indicators
SV display status
indicators
Escape Key
Mode Key
PV display Status indicators
Up Key
Five-digit (–19999 to 99999), seven-segment, 14.2-mm-high LED display with a
programmable decimal point.
The displays show the process value, operations/parameters when setting, and
error messages.
PV Display K3NC-jjjA Basic Model
RUN Mode: Displays the process values. Also displays setting values while
the SV indicator is lit. When changing a value, all digits other
than those that can be set become dimmer.
Setting Mode: Displays the menu, parameter, or setting value. When chang-
ing a value, all digits other than those that can be set become
dimmer.
K3NC-jjjC Set Value LED Display Model
RUN Mode: Displays the process values.
Setting Mode: Displays the menu and parameters.
SV Display (Setting value
LED Display Models Only)
RUN Mode: Displays setting values. When changing a value, all digits other
than those that can be set become dimmer.
Setting Mode: Displays setting values. When changing a value, all digits other
than those that can be set become dimmer.
Comparative Output Status
Indicates the status of the output.
Indicators
RESET
Teaching indicator
Unit of measure
SV display
(SV display models only)
RESET/TEACH Key
Shift Key
Status Indicators RESET Indicator
Lit when the RESET input signal is ON.
PROG Indicator
Lit when the setting mode menu is displayed. The indicator flashes while parameters are displayed.
Teaching Indicator Lit when displayed parameters can be set in teaching operation. The indicator
flashes when the process value is indicated as a setting value.
SV Display Status Indicators Indicates which set value is on the PV or SV display.
Unit of Measure Attach the appropriate label showing the unit of measure (enclosed).
Escape Key
Used to return from the setting, protect, or maintenance mode to the RUN mode.
This key is also used to return to the previous operation during the setting, pro-
tect, or maintenance mode.
3
Front of the Meter
Section 1-2
Mode Key
Process
value
OUT1 is lit.
OUT1 setting
value
No key input
for 5 seconds.
Displays a setting value (out of OUT1, 2, 3, 4 and 5 setting values in this order) on
the PV display in RUN mode when this key is pressed. Unless another operation
key is pressed within five seconds after this key has been pressed, the display
automatically changes to the one for process values.
OUT2 is lit. OUT3 is lit. OUT4 is lit.
OUT2 setting
value
No key input
for 5 seconds.
OUT3 setting
value
No key input
for 5 seconds.
OUT4 setting
value
No key input
for 5 seconds.
OUT5 is lit.
OUT5 setting
value
No key input
for 5 seconds.
In the RUN mode, this button terminates the measurement process and allows
you to enter the setting mode, advancing through the menus and parameters.
Menu 1 Menu 2
Parameter 1 Parameter 2 Parameter n
Menu n
Up Key
Shift Key
In the setting mode, this button will store changes in the non-volatile memory
while at the same time advancing the display to the next menu item.
Used to select a parameter to be displayed for setting value change.
Used to increment the current digit in the setting value by one.
The value increases in the following order:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, (–1), and (–)
Only the leftmost digit will be displayed if the value is set to “–1” or“ –.”
The value will be set to 0 if this key is pressed when “9” or “–” is displayed.
Used to change the parameter displayed in setting mode.
Used to scroll the digit to the right of the presently displayed digit.
RESET/TEACH Key
4
Used to set the counting value forcibly to “0” in RUN mode.
Rear of the Meter
Used to select the teaching function. Refer to 5-1 Teaching Function for details.
1-3 Rear of the Meter
Terminal arrangement varies depending on the selected Output Board.
For wiring, refer to Section 2 Setup.
K3NC with Relay Output Board, K31-C2, -C5
K3NC with Transistor Output Board, K31-T1, -T2
K3NC with Linear Output Board, K31-L1, -L2, -L3, -L4, -L5, -L6, -L7, -L8, -L9, -L10
K3NC with RS-485 Output Board, K31-FLK2, -FLK5
Section 1-3
Output Board
K3NC with BCD Output Board, K31-B2, -B4
K3NC with RS-232C Output Board, K31-FLK1
Input Board
Output Board
Input Board
Communications
Output Board
Input Board
5
Modes
K3NC with RS-422 Output Board, K31-FLK3
Communications
Output Board
Terminator
K3NC with RS232C + Transistor Output Board, K31-FLK4
K3NC with RS-422 + Transistor Output Board, K31-FLK6
Communications
Output Board
Terminator
Section 1-4
Input Board
Transistor
Output Board
1-4 Modes
Input Board
The following four modes are available.
• RUN mode for normal operations (see Section 4 Operations in RUN Mode)
• Setting mode for initializing parameter input (see Section 3 Parameter Setting)
• Protect mode for lock-out configuration (see 3-1 Protect Mode)
• Maintenance mode for initialization (see 5-3-2 Initialization)
Refer to the following for the relationship among these modes and selection of
the modes.
Press the Mode and Shift Keys
while turning on the K3NC.
Maintenance mode
1 second
Power on
RUN mode
RUN mode
Press the Escape and Up
Keys for 1 second.
Protect mode
Setting mode
RUN Mode K3NC is in RUN when the K3NC is turned ON.
The K3NC in this mode provides an output signal as a result of the comparison of
the measured and setting values.
6
Communications Function
The basic model in this mode usually displays the process value. The parameters and setting values are displayed by pressing the Mode Key.
Refer to Section 4 Operations in RUN Mode for RUN mode in detail.
Setting Mode Values are set in the K3NC in this mode by key input or using the teaching func-
tion.
Refer to Section 3 Parameter Setting for value setting by key input and 5-1
Teaching Function for the teaching function in detail.
Protect Mode Use this mode to prohibit some operations in order to lock out the setting values.
Refer to 3-1 Protect Mode for details.
Maintenance Mode The setting values are reset to factory-set values in this mode. Refer to 5-3-2
Initialization for details.
Section 1-5
1-5 Communications Function
The communications function of the K3NC makes it possible for the host computer to perform the following operations.
• Confirmation and change of setting values. Communications conditions cannot be changed.
• Reset of the process value
• Confirmation of model data.
Use a model with the Communications Board if the communications function is
required.
Refer to th e Communications Manual for the communications function in detail.
RS-232C Use the K31-FLK1 or K31-FLK4 Output Board to use the RS-232C interface.
RS-422 Use the K31-FLK3 or K31-FLK6 Output Board to use the RS-422 interface.
RS-485 Use the K31-FLK2 or K31-FLK5 Output Board to use the RS-485 interface.
7
This section provides instructions required for mounting and wiring the K3NC.
2-1 Mounting 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 Input Block 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-1 Terminal Arrangement 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-2 Wiring Precautions 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-3 Wiring 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3 Output Board 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-1 Terminal Arrangement 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-2 Relay Output Board 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-3 Transistor and Combination Output Board 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-4 Linear Output Board 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-5 BCD Output Board 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2
Setup
9
Mounting Section 2-1
2-1 Mounting
Dimensions All dimensions are in millimeters.
Panel Cutouts
PV LED Indicator Size
14.2 mm
8.2 mm
+0.8
45
–0
92
+0.8
–0
75 min.
10
120 min.
Recommended panel thickness is 1 to 3.2 mm.
Do not mount more than one Unit closely in the horizontal or vertical direction. Be
sure to keep the distance between adjacent Units.
Input Block
Mounting Method
Section 2-2
Panel
1, 2, 3... 1. Insert the K3NC into the mounting hole on the panel.
2. Hook the fixture claws onto the side holes.
3. Mount a fixing metal to the right and left sides as shown above and while
keeping them in balance, alternately tighten each screw until the ratchet becomes idle.
2-2 Input Block
2-2-1 Terminal Arrangement
Sensor power supply
(80 mA max. at 12 VDC)
100 to 240 to VAC
Open collector
input
Voltage pulse
input
COMPENSATION
Note Voltage pulse input is available for the K3NC-NBjj-jj.
12 to 24 VDC
11
Input Block
2-2-2 Wiring Precautions
• Do not make any mistake in polarity when supply DC power to the K3NC.
• Do not wire power lines alongside the signal lines of the K3NC in order to pre-
vent the K3NC from noise interference.
• Wire the terminal block with crimp terminals.
• Tighten each screw to a torque of 0.78 N S m (8 kgf S cm).
2-2-3 Wiring
Power Supply Apply 100 to 240 VAC or 12 to 24 VDC to terminals 8 and 9.
Open Collector Input Connect the pulse output from sensor A to terminal 1.
Connect the pulse output from sensor B to terminal 2.
Terminals 10 and 11 are exclusively used for power supply with an output of
80 mA at 12 VDC to sensors A and B. If power is supplied to the sensors A or B
from a different power source, do not use terminal 10. Do not connect a sensor
with open collector output to terminal 10.
Refer to the following for sensor connections.
Section 2-2
Sensor (with NPN output)
+12 V
• Residual voltage with sensor turned on: 3 V max.
• Current leakage with sensor turned off: 1.5 mA max.
• Switching load current: 20 mA or greater. Must be able to dependable switch
a load current of 5 mA max.
Photoelectric sensors, proximity sensors, rotary encoders, and relays can be
connected as sensors to the K3NC.
Voltage Pulse Input Connect the pulse output of sensor A to terminal 3.
Connect the pulse output of sensor B to terminal 4.
Terminals 10 and 11 are exclusively used for power supply with an output of
80 mA at 12 VDC to sensors A and B. If power is supplied to the sensors A and B
from a different power source, do not use terminal 10. Do not connect a sensor
with voltage pulse output to terminal 10.
Refer to the following for sensor connections.
Sensor (with PNP output)
+12 V
Sensor
H level (sensor output ON): 4.5 to 30 VDC
L level (sensor output OFF): –30 to 2 VDC
Auxiliary Power Supply Terminals 10 and 11 are exclusively used for power supply to sensors with an
output of 80 mA at 12 VDC ± 10%.
+12 V
12
Input Block
External Signal Input COMPENSATION Input
RESET Input
BANK Input
Connect external signal inputs to terminals 5 through 7 and 13 through 15. Terminals 7 and 13 are connected to each other internally.
Connect COMPENSATION input to terminal 5.
Connect RESET input to terminal 6.
Connect BANK inputs to terminals 14 and 15 for BANK1 and BANK2.
If open collector input is used as external signal input, the transistor must satisfy
the following conditions.
• Residual voltage with transistor turned on: 3 V max.
• Current leakage with transistor turned off: 1.5 mA max.
• Switching load current: 20 mA or greater
Approximately 5 V is imposed between COM and terminals 5 to 7 with a current
flow of approximately 18 mA (a nominal value) at the time of external input shortcircuiting.
Section 2-2
COMPENSATION
Short-circuited together internally.
13
Output Board
2-3 Output Board
2-3-1 Terminal Arrangement
K3NC with Relay Output Board, K31-C2, -C5
K3NC with Transistor Output Board, K31-T1, -T2
K3NC with Linear Output Board, K31-L1, -L2, -L3, -L4, -L5, -L6, -L7, -L8, -L9, -L10
K3NC with RS-485 Output Board, K31-FLK2, -FLK5
Section 2-3
K3NC with BCD Output Board, K31-B2, -B4
K3NC with RS-232C + Transistor Output Board, K31-FLK4
14
Output Board
K3NC with RS-422 + Transistor Output Board, K31-FLK6
K3NC with RS-232C Output Board, K31-FLK1
Section 2-3
K3NC with RS-422 Output Board, K31-FLK3
15
Output Board
2-3-2 Relay Output Board
The following figures show the connections for relay output.
Section 2-3
K3NC with 5 Relay
Output Boards,
K31-C2
OUT5
OUT4
OUT3
OUT2
OUT1
K3NC with 5 Relay
Output Boards,
K31-C5
The following contact output conditions are required.
5 A (resistive load) at 250 VAC
1.5 A (inductive load) at 250 VAC
5 A (resistive load) at 30 VDC
1.5 A (inductive load) at 30 VDC
OUT5
OUT4
OUT3
OUT2
OUT1
2-3-3 Transistor and Combination Output Board
K3NC with Transistor Output
Board, K31-T1 or K31-T2
K3NC with Linear Output Board,
K31-L4, -L5, -L6, -L9, -L10
K3NC with RS-485 + 5 Relay
Output Boards, K31-FLK5
21
OUT5
22
OUT4
23
OUT3
24
OUT2
25
OUT1
26
COM
K3NC with BCD Output
Board, K31-B2 or K31-B4
32
OUT5
33
OUT4
34
OUT3
35
OUT2
36
OUT1
COM
37
K3NC with RS232C + 5
Transistor Output Boards,
K31-FLK4
K3NC with RS-422 + 5
Transistor Output Boards,
K31-FLK6
1
OUT5
2
OUT4
4
OUT3
5
OUT2
6
OUT1
3
COM
16
Output Board
The following transistor output conditions are required.
Maximum rated voltage: 24 VDC
Load current: 50 mA
Current leakage with transistor turned off: 100 µA.
2-3-4 Linear Output Board
The following figures show connections for linear output.
Section 2-3
4 to 20 mA 1 to 5 V
The following linear output conditions are required.
Linear output Permissible load
4 to 20 mA 600 Ω max. 4096 ±0.5% FS
1 to 5 V 500 Ω min. 4096 ±0.5% FS
1 mV/10 digit 1 kΩ min. 4096 ±1.5% FS
2-3-5 BCD Output Board
Refer to Section 6 BCD Output for the terminal arrangement and interface.
K3NC with Linear
Output Board,
K31-L1 or K31-L4
+
–
K3NC with Linear
Output Board,
K31-L2 or K31-L5
resistance
K3NC with Linear
Output Board,
K31-L3 or K31-L6
+
1 mV/10 digit
–
Resolution Output error
+
–
17
SECTION 3
Parameter Setting
This section provides instructions for setting the parameters of the K3NC. Be sure to read this section before using the K3NC
Up/Down Counting Meter for the first time.
3-1 Overview 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-1 Heading Symbols 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-2 Setting Procedures 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Setting Mode 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-1 Selecting Setting Mode 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-2 Menu Overview 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-3 Setting Value Menu (sUset)24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bank No. of Set Value (s.bank)24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT1 Set Value (sU*.o1)24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT2 Set Value (sU*.o2)24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT3 Set Value (sU*.o3)24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT4 Set Value (sU*.o4)24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT5 Set Value (sU*.o5)24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-4 Prescaling Menu (pscl)29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prescaling Bank (p.bank)29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prescaling Value X (Mantissa) of Input A (ps*.ax)29. . . . . . . . . . . . . . . . . . . . . . . . . . .
Prescaling Value Y (Exponent) of Input A (ps*.ay)29. . . . . . . . . . . . . . . . . . . . . . . . . .
Decimal Point Position (decp.*)29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-5 Setup Menu (setup)32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Mode (count)32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor Type (in)34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Communications Unit Number (uĆno)36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Baud Rate (bps)36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Word Length (len)38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Bits (sbit)38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parity Bits (prty)38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-6 Option Menu (opt)41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Failure Memory (memo)41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compensation Value (compn)43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compensation Input Condition (comĆp)43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Modes (out)45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Upper Limit (H) of Linear Output Range (lset.h)48. . . . . . . . . . . . . . . . . . . . . . . . . . .
Lower Limit (L) of Linear Output Range (lset.l)48. . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote/Local Programming (rĆl)51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Protect Mode 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3-1 Selecting Protect Mode 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3-2 Menu Overview 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3-3 Protect Menu (prot)55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
All Key Protect (all)55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Value Change Prohibit (sUset)56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset Prohibit (reset)58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security (secr)60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
Overview Section 3-1
3-1 Overview
3-1-1 Heading Symbols
The following symbols are used for headings in this section.
This symbol precedes an explanation of the parameter’s meaning and function.
FUNCTION
This symbol precedes a description of the settings, setting range, and default
value.
SETTING
This symbol precedes an explanation of procedures for parameters that specify
operations.
PROCEDURE
This symbol precedes a listing of references and related parameters.
REFERENCE
This symbol precedes a listing of the models in which this parameter can be
used.
MODELS
3-1-2 Setting Procedures
• The K3NC has four modes: RUN mode for normal operations, Setting mode
for initial parameter input, Protect mode for lock-out configuration, and Maintenance mode for initializing set values. The parameters that are accessible on
any individual K3NC will vary depending on the Output Board installed. Refer
to Appendix D Available Parameters.
• The K3NC is in RUN mode when the K3NC is turned on. Parameter settings in
protect or setting mode are described below on the basis that the parameters
are set for the first time.
For the operation in RUN mode, refer to Section 4 Operations in RUN Mode.
• The setting examples are provided on condition that the factory-set values of
the K3NC have not been changed.
20
Setting Mode
3-2 Setting Mode
3-2-1 Selecting Setting Mode
• The K3NC in RUN mode will go into setting mode if the Mode Key is pressed for
1 s minimum.
• The K3NC in setting mode will go into RUN mode if the Escape Key is pressed.
Press the Mode and Shift Keys
while turning the K3NC on.
Section 3-2
Power On
Maintenance mode
1 second
RUN mode
RUN mode
Setting mode
Press the Escape and Up
Keys for 1 second.
Protect mode
• The menu in each mode changes whenever the Mode Key is pressed.
• If the Mode Key is pressed for more than one second while a menu is dis-
played, a parameter will be displayed.
• The parameter changes whenever the Mode Key is pressed.
• If the Shift Key is pressed while a parameter is displayed, the parameter will be
ready to change.
• Press the Up Key to change parameters.
• The digit of a set value is selected with the Shift Key and changed with the Up
Key.
• The PROG indicator is lit while a menu or parameter is displayed.
• The PROG indicator flashes during a set value change.
Note If the input mode is changed, all the other parameters will be set to default val-
ues. Therefore, set the input mode first.
21
Setting Mode
Section 3-2
3-2-2 Menu Overview
Power On
RUN Mode
Refer to Section 4 Operations in RUN Mode.
Press the Mode
Key for 1 second.
Setting Mode
Comparative value menu
Bank no. of set
value
OUT1 setting value
OUT2 setting value
OUT3 setting value
Press the Mode and Shift Keys
while turning the K3NC on.
Press the Mode Key for 1 second.
(see note 1)
1 to 4
Note 1:
When making new settings
or changing settings of each
parameter, press the Shift
Key to shift to the setting
state.
The input will be updated
automatically if no change is
made for five seconds
Press the Escape and
Up Keys for 1 second.
Maintenance Mode
Refer to Section 5 Useful Functions.
Protect Mode
Refer to 3-3 Protect Mode.
Prescaling menu
Press the Mode Key for 1 second.
Bank no. of
prescale values
Prescaling value of input A
X (mantissa)
Prescaling value of input A
Y (exponent)
Decimal point
position
Output Test
Refer to Section 5
Useful Functions.
OUT4 setting value
OUT5 setting value
Note: 2
The K3NC stops measurement
in setting mode.
Some menus cannot be set according to the Output Board selected.
If the input mode is changed, all
the other parameters are set to
default values. Therefore, set
the input mode first.
22
Setting Mode
Section 3-2
Setup Menu
Input mode
Input sensor type
Communications
unit number
Baud rate
Word length
Stop bits
Parity bits
Press the Mode Key for 1 second.
Option menu
Power failure
memory
Compensation
value
Compensation input condition
Output mode
H linear output
range
L linear output
range
Remote/Local
processing
Press the Mode Key for 1 second.
23
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