Omron K7DD User manual

N233-E1-01
User's Manual
K7DD
Power Line Data Generator
Troubleshooting
Procedures
Overview
Support Tool
Function
K7DD Function
Installation and
Wiring
Communications
Using K7DD
Parameters
1
2
3
4
5
6
7
8
Appendices
INDEX
A
I

• Microsoft, Windows Excel, and Visual Basic are either registered trademarks or trademarks of Microsoft
Corporation in the United States and other countries.
• Modbus is a registered trademark or trademark of Schneider Electric USA, Inc. in Japan, the United States or
other countries.
Other company names and product names in this document are the trademarks or registered trademarks of their
respective companies.
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.
Microsoft product screen shots reprinted with permission from Microsoft Corporation.
Trademarks
Copyrights
NOTE

1
Power Line Data Generator User’s Manual (N233)
Preface
Thank you for purchasing a K7DD Power Line Data Generator. This manual describes how to use the
K7DD.
Read this manual thoroughly and be sure you understand it before attempting to use the K7DD
correctly according to the information provided. Keep this manual in a safe place for easy reference.
A PDF version of this manual can be downloaded from the OMRON website.
(https://www.omron.com)

Terms and Conditions Agreement
2Power Line Data Generator User’s Manual (N233)
Terms and Conditions Agreement
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 warranties, 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 Product, 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 warranty, 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 inappropriate
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 electrical 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 published information.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION 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.
Warranty, Limitations of Liability
Warranties
Limitation on Liability; Etc

3
Terms and Conditions Agreement
Power Line Data Generator User’s Manual (N233)
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 determination 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 application, 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 OR IN LARGE QUANTITIES 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.
Omron Companies shall not be responsible for the user’s programming of a programmable Product,
or any consequence thereof.
Data presented in Omron Company websites, catalogs and other materials 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 user must correlate it to actual application requirements. Actual
performance is subject to the Omron’s Warranty and Limitations of Liability.
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
representative at any time to confirm actual specifications of purchased Product.
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.
Application Considerations
Suitability of Use
Programmable Products
Disclaimers
Performance Data
Change in Specifications
Errors and Omissions

Safety Precautions
4Power Line Data Generator User’s Manual (N233)
Safety Precautions
The following notation is used in this manual to provide precautions required to ensure safe usage of
the K7DD Power Line Data Generator.
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.
Definition of Precautionary Information
CAUTION Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury, or property damage.
Precautions for
Safe Use
Precautions on what to do and what not to do to ensure safe
usage of the Product.
Precautions for
Correct Use
Precautions on what to do and what not to do to ensure proper
operation and performance.
Symbols
Symbol Meaning
Caution
• General Caution
Indicates unspecified general cautions, warnings, and dangers.
• Electrical Shock Caution
Indicates possibility of electric shock under specific conditions.
Prohibition
• General Prohibition
Indicates unspecified general prohibitions.
• Disassembly Prohibition
Indicates prohibitions the disassembly of a device because of the possibility of
injuries due to electric shock.
Mandatory
Caution
• General instructions
Indicates instructions on unspecified general action.

5
Safety Precautions
Power Line Data Generator User’s Manual (N233)
Take adequate security measures against DDoS attacks (Distributed Denial of Service attacks),
computer viruses and other technologically harmful programs, unauthorized access and other possible
attacks before using this product.
CAUTION
Minor injury due to electric shock may occasionally occur. Do not touch the Product
except for any buttons (keys) while power is being supplied.
Electric shock may occasionally occur. Always turn OFF the power supplies to the
measured object and the Product before wiring the special CT and voltage input.
Minor electric shock, fire, or malfunction may occasionally occur. Do not allow metal
objects, conductors, or cuttings from installation work to enter the Product.
Minor electric shock, fire, or Product failure may occasionally occur. For the wire
passing through the primary side of the special CT, be sure to use an insulated wire with
basic insulation or higher degree of insulation. When clamping a busbar or other
conductive material, ensure basic insulation or higher level of insulation, e.g., by
covering it with an insulating material.
Minor injury due to explosion may occasionally occur. Do not use the Product where
subject to flammable or explosive gas.
Minor electric shock, fire, or malfunction may occasionally occur. Do not disassemble,
modify, or repair the Product or touch the interior of the Product.
Property damage may occasionally occur due to ignition. Always make sure that the
wires are connected properly before turning ON the power supply.
Property damage may occasionally occur due to ignition. When wiring, make sure that
the wiring material is properly inserted all the way into each terminal hole of the Product.
Property damage may occasionally occur. Take appropriate measures such as
performing periodic inspection of the Product and installing a monitoring device on a
separate line.
Security Measures
Anti-virus protection
Install the latest commercial-quality antivirus software on the computer connected to the
control/monitor system and maintain to keep the software up-to-date.

Safety Precautions
6Power Line Data Generator User’s Manual (N233)
Security measures to prevent unauthorized access
Take the following measures to prevent unauthorized access to our products.
• Install physical controls so that only authorized personnel can access control/monitor
systems and equipment.
• Reduce connections to control/monitor systems and equipment via networks to
prevent access from untrusted devices.
• Install firewalls to shut down unused communications ports and limit communications
hosts and isolate control/monitor systems and equipment from the IT network.
• Use a virtual private network (VPN) for remote access to control/monitor systems and
equipment.
• Scan virus to ensure safety of SD cards or other external storages before connecting
them to control/monitor systems and equipment.
Data input and output protection
Validate backups and ranges to cope with unintentional modification of input/output data
to control/monitor systems and equipment.
• Checking the scope of data
• Checking validity of backups and preparing data for restore in case of falsification and
abnormalities
• Safety design, such as emergency shutdown, in case of data tampering and
abnormalities
Data recovery
Backup data and keep the data up-to-date periodically to prepare for data loss.
Security Measures of K7DD Support Tool
To prevent computer viruses, install antivirus software on a computer where you use
this software. Make sure to keep the antivirus software updated.
Keep your computer's OS updated to avoid security risks caused by a vulnerability in
the OS. Manage usernames and passwords in the OS or this software carefully to
protect them from unauthorized uses.
Always use the highest version of this software to add new features, increase
operability, and enhance security.
Set up a firewall (E.g., disabling unused communication ports, limiting communication
hosts, etc.) on a network for a control/monitor system and devices to separate them
from other IT networks. Make sure to connect to the control/monitor system inside the
firewall.
Use a virtual private network (VPN) for remote access to a control/monitor system and
devices from this software.

7
Precautions for Safe Use
Power Line Data Generator User’s Manual (N233)
Precautions for Safe Use
(1) Do not store, install, or use the Product in the following locations:
• Outdoor or locations subject to direct sunlight
• Locations subject to rain and wind damage
• Locations subject to excessive vibration or shock
• Locations subject to rapid temperature changes
• Locations prone to icing and dew condensation
• Locations subject to water or oil
• Locations subject to dust or corrosive gases (particularly sulfurizing gases, ammonia, etc.)
• Locations subject to influence of static electricity and noise
• Locations subject to bugs and small animals
• Locations subject to electromagnetic fields
• Locations subject to a load
(2) A switch or circuit breaker should be provided close to the Product. The switch or circuit breaker
should be within easy reach of the operator, and must be marked as a means to cut off the power
to the Product.
(3) Mount the Product in the correct direction for installation.
(4) Use and store the Product in a location where the ambient temperature and humidity are within the
specified ranges. If applicable, provide forced cooling.
(5) Be sure to use terminals of operation power supply carefully, because they have hazardous
voltage.
(6) Use the wire given in this manual.
(7) When wiring, use a wire of sufficient length.
(8) Make sure that the operation power supply voltage and the load voltage and current are within the
specifications of the Product.
(9) Check terminal polarity when wiring and wire all connections correctly. Do not wire the input and
output terminals incorrectly.
(10) Make sure the crimp terminals for wiring are of the specified size.
(11) Do not wire anything to the release holes.
(12) Confirm that the input and output terminals are correctly wired before power is supplied.
(13) The terminal block may be damaged if you insert a flat-blade screwdriver in the release hole with
excessive force. When inserting a flat-blade screwdriver into the release holes, operate with a
force of 15·N or less.
(14) To prevent inductive noise, wire the lines connected to the Product separately from power lines
carrying high voltages or currents. Also, do not wire in parallel with or on the same cables as power
lines. Other measures for reducing noise are to separate from ducts including noisy lines.
(15) The Product may be subject to radio disturbances. Do not install the Product near equipment that
generates high frequencies or surges.
(16) The maximum terminal temperature is 65°C. Use wires with a heat resistance of 65°C minimum to
wire the terminals.
(17) For accurate measurement with the Product, use the range suitable for the measurement voltage
and current.
(18) Periodically check that the LCD display and LED indicators operate correctly. Depending on the
operating environment, the display or indicators may fail due to deterioration.
(19) Do not exceed the communications distance that is given in the specifications and use the
specified communications cable. For information on the communication distance and the cable,
refer to A-1 Specifications (P.A-2).

Precautions for Correct Use
8Power Line Data Generator User’s Manual (N233)
(20) Do not continue to use the Product if the front surface peels.
(21) The alarm output function is a function for the output of an alarm when the set threshold value is
exceeded. Do not use this function for control, etc.
(22) Use the Product inside the control panel to prevent external noise.
(23) When discarding the Product, properly dispose of it as industrial waste.
(24) Always use the special CT that is specified by OMRON’ s model number.
(25) Clamp the wire of the special CT correctly. After clamping, make sure until it clicks into place.
(26) The measurement accuracy may deteriorate due to the influence of external magnetic fields. Install
the special CT as far away as possible from electric wires with large current flows, except for those
to be measured.
(27) Connect the special CT input and the voltage input correctly to the same application.
(28) Install equipment so that wiring cables do not touch moving parts.
(29) Do not build a system that judges the open/closed state of the valve based on the measurement
value of the Product. A system error may occur.
(30) If you accidentally drop the Product, the inside of the Product may be damaged, so do not use it.
(31) Do not bend a wire more than its natural bending radius or pull on it with excessive force. Doing so
may cause wire disconnection, or damage to the terminal block.
(32) Do not wire anything to the release holes.
Precautions for Correct Use
(1) During periodic inspection, installation of an additional sensor, or adjustment of sensor position,
use the Product after ensuring that operations can be performed normally.
(2) Do not use the Product as a safety apparatus, or for the rescue of human lives.
(3) Confirm that wire does not stick up after wiring of stranded cable.
(4) In crossover wiring, connecting more than one K7DD in parallel may allow a large amount of
current to flow. Keep the current to 10 A or less per terminal.
(5) When wiring a ferrule terminal or single wire, push it directly into the terminal hole. When wiring a
stranded wire, insert the wire into the terminal hole while pushing straight along the taper of the
release hole with the recommended flat-blade screwdriver.
(6) The terminal block may be damaged if specialized tool is not used. Use a recommended flat-blade
screwdriver to insert into a release hole on the terminal block.
(7) Only a professional with an understanding of electricity and electric devices must handle it. Read
this manual carefully before using the Product.
(8) Use the power supply voltage, input power, and other power supplies and transformers with
suitable capacities and rated outputs.
10 to 15°
Flat-blade
screwdriver
10 to 15°
Flat-blade
screwdriver
Wire
(1)
(3)
(2)
Flat-blade screwdriver
<Upper side>
Wire
(1)
(3)
(2)
Flat-blade screwdriver
<Lower side>

9
Regulations and Standards
Power Line Data Generator User’s Manual (N233)
(9) Do not install the Product close contact with the heating element.
(10) Use a power supply that will reach the rated voltage within 1 second after the power is turned ON.
(11) Do not install the Product near equipment that generates high frequencies or surges.
(12) Make sure that the setting values registered in the Product match the specifications of the load and
special CT that are actually used.
(13) Do not ground the terminal on the output side of the special CT. Failure to do so may result in
unstable measurement.
(14) Do not directly clamp the special CT to the lines exceeding 600 VAC.
(15) If an error occurs during the operation of the Product, stop the operation immediately and make
suitable corrections such as replacement.
(16) Do not use any liquids such as paint thinner, similar solvents or alcohol to clean the Product. Clean
it with a soft, dry cloth.
Regulations and Standards
• The protection provided by the device may be impaired if the device is used in a manner that is
not specified by the manufacturer.
• To use the Product, install it as an embedded device within a control panel.
• To use the special CT, install it in the same control panel as the Product with a sufficient clearance
from other devices.
• For the special CT, use one with –C suffixed to the model.
• For the operation power supply and voltage inputs, use recommended fuses that are externally
installed.
• Use the voltage and CT inputs under conditions specified for the measurement category.
• The maximum temperature of the terminal block is 65°C. Therefore, use wires with a rated
temperature of 65°C or higher.
• Select wires in accordance with Table 2 so that the case temperature of the special CT will be
65°C or less.
• For the wire passing through the primary side of the special CT, use an insulated wire with basic
insulation or higher degree of insulation that conforms to the rated voltage and size of the AWM
(Appliance Wiring Material) wire in Table 1.
• Table 1 below shows the nominal voltage and measurement circuit connections available for each
measurement category in the Main Power Supply System Configurations. Do not use the device
under conditions that exceed this category and conditions.
Conformance to Safety Standards

Regulations and Standards
10 Power Line Data Generator User’s Manual (N233)
Ta b l e 1
Measuring Voltage System Configurations
CAT III
Phase voltage ≤150 V Line voltage ≤150 V
Rated voltage and size of AWM wires: 150 V min. No size limit
Phase voltage > 150 ≤300 V Line voltage > 150 ≤300 V
Rated voltage and size of AWM wires: 600 V min. 1 AWG min.
CAT II
Phase voltage ≤150 V Line voltage ≤150 V
Rated voltage and size of AWM wires: 150 V min. No size limit
Phase voltage > 150 ≤300 V Line voltage > 150 ≤300 V
Rated voltage and size of AWM wires: 300 V min. No size limit
Phase voltage > 300 ≤347 V Line voltage > 300 ≤480 V
Rated voltage and size of AWM wires: 600 V min. 1 AWG min.
Ta b l e 2
Special CT model Wire size Ambient operating temperature
of K7DD and special CT
K6CM-CICB005-C 24 AWG min. (0.25 mm
2
min.) 55°C max.
K6CM-CICB025-C 12 AWG min. (3.5 mm
2
min.) 55°C max.
K6CM-CICB100-C
4 AWG (22 mm
2
)45°C max.
2 AWG (35 mm
2
)50°C max.
1 AWG min. (50 mm
2
min.) 55°C max.
K6CM-CICB200-C
2/0 AWG (70 mm
2
)45°C max.
3/0 AWG min. (95 mm
2
min.) 50°C max.
K6CM-CICB400-C 3/0 AWG min. x2 (95 mm
2
min. x2) 40°C max.
R
S
N
T
PE
PEN
R
S
N
T
E
E
3-phase, 4-wire type
(neutral point
grounding)
M
24
23
22
21
20
19
16
15
14
13
RN
MC
k
ℓ
k
ℓ
k
ℓ
ST
R
S
T
EE
R
S
T
EE
3-phase, 3-wire type
M
22
21
20
19
15
14
13
R
MC
k
ℓk
ℓ
ST
R
S
EE
Single-phase, 2-wire type
M
20
19
R
MC
k
ℓ
S

11
Regulations and Standards
Power Line Data Generator User’s Manual (N233)
Connection diagrams
Measurement Category
The measurement category classifies the places and equipment which you can connect to the
measurement terminals, as prescribed in EN/IEC 61010-2-030.
Each category is as follows.
CAT II: Energy-consuming equipment with an energy supply from fixed wiring equipment (such as
a power outlet)
CAT III: Equipment in fixed wiring equipment that particularly demands equipment reliability and
effectiveness
CAT IV: Equipment to use at the electrical service entry
This is a Class A product. In residential areas it may cause radio interference, in which case the user
may be required to take adequate measures to reduce interference. The product must be installed
within a control panel.
Conformance to EN/IEC Standards
K7DD
+
-
+-
+
-
RS-485
Communications 2
External contact
Alarm output 1
R
S
T
N
R
S
R
S
T
RR
T
T
3-phase,
3-wire type
Single-phase,
2-wire type
3-phase,
4-wire type
Alarm output 2
Output at Error
Communications 1
RS-485
28
27
30
29
8
7
26
25
12
22
21
24
23
16
20
19
14
13
15
22
21
20
19
20
19
14
13
15
k
ℓ
k
ℓ
k
ℓ
k
ℓ
k
ℓ
k
ℓ
4
3
6
5
Fixed
equipment
Distribution
board
CAT IV
CAT III
CAT II
Internal wiring
Service entry wire
Power outlet

Terminology
12 Power Line Data Generator User’s Manual (N233)
Terminology
Term Abbrevi-
ation Description
% FS - This shows a percentage to the input range (at full scale).
alarm latch - Once an alarm turns ON, this function keeps it ON until the alarm latch is
released.
channel CH In the Power Line Data Generator K7DD, CH indicates the unit of voltage
and current measurement loop for each phase of the power line.
CT - An acronym for Current Transformer. This is a current sensor that can
measure alternating current on a non-contact basis. When you run the
power cable through the ring-shaped core, the sensor measures the
induced voltage to the secondary winding around the core to detect an
alternating current value.
flashing - This means that the display flashes at 1-s intervals (lit for 0.5 s and out for
0.5 s).
flashing at high speed - This means that the display flashes at 0.5-s intervals (lit for 0.25 s and out
for 0.25 s).
Modbus RTU - This is a standard communications control method that conforms to
Modicon Inc.’s RTU-mode Modbus Protocol (PI-MBUS-300 Rev. J).
Operation Command - A generic term for the signals that command operation of devices. In the
K7DD, Operation Command signals are given and executed via
communications or key operations.
parameter - There are two types of parameters: the parameter that the user can set, and
the parameter that accesses a monitored value. The parameter that can be
set is called a “setting parameter.”
In addition, the parameter that can be accessed only via communications is
called a “parameter exclusive to communications.”
power ON reset - The power ON reset is a reset process inside the K7DD. It can be executed
in any of the following ways.
• Cycling the power supply
• Executing the Software Reset Command via communications
• Moving to the Operation Level with key operation (by pressing the Level
Key for 1 second or more in the operation stopped state)
special CT - A CT (Current Transformer) recommended for the Power Line Data
Generator K7DD. Use the CT with a rated current and voltage, according to
the target power line.

13
Manual Structure
Power Line Data Generator User’s Manual (N233)
Manual Structure
Page Structure and Symbols
2 - 7
2 Procedures
Power Line Data Generator User’s Manual (N233)
2-2 Configuration with the K7DD Unit Only
2
This section describes common settings for configurations using the K7DD unit only and using K7DD
Support Tool.
Check it beforehand since the information is necessary for the parameter settings on the K7DD.
The K7DD can monitor the following three types of electrical wiring states.
x3P3W2M: 3-Phase, 3-Wire, 2-Watt Meter Method
x3P4W: 3-phase 4-wire
xSingle phase current
Refer to 3-5 Wiring to the Power Lines (P.3-13) for details.
Precautions for Correct Use
Be aware that the K7DD cannot measure the following wiring states:
• 1P2W: Single-phase, 2-wire type
• 3P3W3M: 3-phase, 3-wire 3-watt meter method
Note that the Unit does not support applications where wiring is switched during the course of
operation.
Since the following items are necessary in the K7DD parameter settings, check them in advance.
xCurrent Input Range
xVoltage Input Range
Common Settings
(1) Identify Voltage and Current of Actuator and Select Special CT
Check the electrical wiring of the actuator to be monitored.
Check the ratings (voltage and current) of the actuator to be
monitored.
Prepare a special CT suitable for the power line to monitor.
1. Check the rated voltage and current of the monitored
actuator on its nameplate, etc.
2. Select the smallest special CT of which the rated
current is within the range.
Refer to A-1-2 Special CTs (P.A-6) for the types of
special CTs.
Level 2 heading
Procedures
Manual name
Special information
Page tab
Gives the current
heading.
Indicates a procedure.
Icons indicate precautions,
additional information, or
reference information.
Indicates the current
section number.
Level 2 heading
Level 1 heading

Manual Structure
14 Power Line Data Generator User’s Manual (N233)
Special information in this user’s manual is classified as follows:
Precautions for Correct Use
Precautions on what to do and what not to do to ensure proper operation and performance.
Setting-related page
In Section 6 Using K7DD Parameters, this indicates the page related to the setting level.
Additional information to read as required.
This information is provided to increase understanding or make operation easier.
References are provided to more detailed or related information.
Icons
Tool Operating Procedure
In Section 2 Procedures, this indicates the procedure to perform with the K7DD Support Tool.
Configuration with Key Operations
In Section 2 Procedures, this indicates the procedure to perform with key operations on the
K7DD.

15
Manual Structure
Power Line Data Generator User’s Manual (N233)
The following tables show the correspondence between the symbols displayed on the main
display/parameter display and alphabet characters.
The following table shows the characters displayed on the LVL.
LVL Display
Notation on Main Display and LVL Display
Main Display/Parameter Display
ab
c
or
[
defghijklm
ABCDEFGH I JKLM
nopqrstuV
w
or
{
xyz
NOPQRSTUVWXY Z
LVL Display
Character Meaning
Blank Shows that the Unit is on the Monitoring Level.
0Initial Setting Level Shows that the Unit is on the Initial Setting Level.
1Communications Level Shows that the Unit is on the Communications Level.
aAdjustment Level Shows that the Unit is on the Adjustment Level.
RSTR CH
VIP COMM1 COMM2 INTL SCCS
VOLT
LVL CRNT FREQ HOLD AGE ALM
Parameter
Display
LVL Display
Main Display

Revision History
16 Power Line Data Generator User’s Manual (N233)
Revision History
A manual revision code appears as a suffix to the catalog number on the back cover of the manual.
Revision code Date Revised content
01 February 2023 Original production
N233-E1-01
Revision code

A
Troubleshooting
Appendices
8
1
3
4
5
6
4
5
6
7
Overview
Installation and Wiring
2Procedures
K7DD Function
Support Tool Function
Using K7DD Parameters
Communications
3
7
1
2
8
A
IINDEX
I
17
Sections in this Manual
Power Line Data Generator User’s Manual (N233)
Sections in this Manual

18 Power Line Data Generator User’s Manual (N233)
CONTENTS
Terms and Conditions Agreement ..........................................................................2
Warranty, Limitations of Liability .................................................................................................................. 2
Application Considerations .......................................................................................................................... 3
Disclaimers .................................................................................................................................................. 3
Safety Precautions ...................................................................................................4
Definition of Precautionary Information........................................................................................................ 4
Symbols....................................................................................................................................................... 4
Precautions for Safe Use.........................................................................................7
Precautions for Correct Use.................................................................................... 8
Regulations and Standards .....................................................................................9
Conformance to Safety Standards............................................................................................................... 9
Conformance to EN/IEC Standards........................................................................................................... 11
Terminology ............................................................................................................12
Manual Structure ....................................................................................................13
Page Structure and Symbols ..................................................................................................................... 13
Icons .......................................................................................................................................................... 14
Notation on Main Display and LVL Display................................................................................................ 15
Revision History .....................................................................................................16
Sections in this Manual .........................................................................................17
Section 1 Overview
1-1 Outline .................................................................................................................................... 1-2
1-2 Features.................................................................................................................................. 1-4
1-3 Model Number Legend..........................................................................................................1-5
1-4 Part names and functions.....................................................................................................1-6
1-5 Internal Block Diagram .......................................................................................................1-11
1-6 Example Configurations for Use........................................................................................ 1-12
Section 2 Procedures
2-1 Overview of Operating Procedures ..................................................................................... 2-2
To Monitor with the K7DD......................................................................................................................... 2-2
How to Configure Features and Alarm Thresholds................................................................................... 2-2
Accurate Monitoring with Trigger Settings ................................................................................................ 2-3
2-2 Configuration with the K7DD Unit Only............................................................................... 2-4
Flow of Configuration with the K7DD Unit Only ........................................................................................ 2-4
Common Settings ..................................................................................................................................... 2-6
(1) Identify Voltage and Current of Actuator and Select Special CT......................................................... 2-6
(2) Installation and Wiring......................................................................................................................... 2-7
Wiring Example of 3P3W2M Connection (3-phase, 3-wire, 2-watt Meter Method) .................................. 2-7
Wiring Example of 3P4W Connection....................................................................................................... 2-8
Wiring Example of Single-phase Current Connection .............................................................................. 2-9
Configuration Procedure with the K7DD Unit Only .................................................................................2-10