How it Works
Yokogawa
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CW500
Specifications
16 pgs4.3 Mb0
Getting Started Guide
87 pgs4.6 Mb0
Operating Manual
135 pgs6.79 Mb0
Table of contents
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Yokogawa CW500 Operating Manual

User's Manual
CW500 Power Quality Analyzer User’s Manual
IM CW500-01EN
1st Edition
Thank you for purchasing the CW500 Power Quality Analyzer. This user’s manual explains the features and operating procedures of the CW500. To ensure correct use, please read this manual thoroughly before beginning operation. Keep this manual in a safe place for quick reference in the event that a question arises. The following five manuals, including this one, are provided as manuals for the CW500. Please read all manuals.
Manual Title Manual No. Description CW500
Power Quality Analyzer User’s Manual
IM CW500­01EN
This guide. This manual explains the CW500’s standard features and how to use these features.
Application Software User’s Manual
IM CW500­61EN
The supplied CD contains the PDF file of this manual. This manual explains how to use the application software.
CW500 Power Quality Analyzer Getting Started Guide
IM CW500­02EN
The guide explains the handling precautions and basic operations of the CW500 and provides a list of specifications.
Application Software Installation Manual
CW500
IM CW500-62JA This manual describes how to
install the application software.
IM CW500-92Z1 Chinese document Power Quality Analyzer User’s Manual
The “-EN” in the manual number is the language code. Contact information of Yokogawa offices worldwide is provided on the following sheet.
Manual No. Description PIM113-01Z2 List of worldwide contacts
1st Edition : September 2015 (YMI) All Rights Reserved, Copyright © 2015 Yokogawa Meters & Instruments Corporation
i
Notes
• The contents of this manual are subject to change without prior notice as a result of continuing improvements to the software’s performance and functionality. The figures given in this manual may differ from those that actually appear on your screen.
• Every effort has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you have any questions or find any errors, please contact your nearest YOKOGAWA dealer.
• Copying or reproducing all or any part of the contents of this manual without the permission of YOKOGAWA is strictly prohibited.
•
Trademarks
• Microsoft, Windows, Windows 7, and Windows 8 are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
• Adobe, Acrobat, and PostScript are either registered trademarks or trademarks of Adobe Systems Incorporated.
• In this manual, the TM and ® symbols do not accompany their respective registered trademark or trademark names.
• Other company and product names are trademarks or registered trademarks of their respective companies.
Revisions
September 2015 1st Edition
ii
Contents
Chapter 1 Product Outline
1.1 Feature Outline .....................................................1-1
1.2 Features ................................................................1-3
1.3 System Configuration Diagram .............................1-5
1.4 Measurement Procedure ......................................1-6
Chapter 2 Component Names
2.1 Display (LCD) and Control Keys ...........................2-1
2.2 Connectors ...........................................................2-2
2.3 Side Panel ............................................................2-3
2.4 Voltage Probe and Current Clamp-on Probe ........2-4
Chapter 3 Basic Operation
3.1 Description of Control Keys ..................................3-1
3.2 Marks Displayed in the Top Area of the LCD ........ 3-3
3.3 Display Symbols ...................................................3-4
3.4 Backlight and Contrast Adjustment .......................3-5
3.5 Screens and Screen Configuration .......................3-6
Chapter 4 Recording
4.1 Starting and Stopping Recording ..........................4-1
4.2 Starting to Record with “Quick start guide” ...........4-3
Chapter 5 Setup
5.1 Settings .................................................................5-1
5.2 Basic Setup ...........................................................5-2
5.3 Measurement Setup ...........................................5-12
5.4 Recording Setup .................................................5-25
5.5 Other Settings .....................................................5-31
5.6 Saved Data .........................................................5-36
iii
Contents
Chapter 6 Display Items of Each Screen
6.1 Instantaneous Value (W) ......................................6-1
6.2 Integrated Value (Wh) ........................................... 6-9
6.3 Demand .............................................................. 6-11
6.4 Vector ..................................................................6-14
6.5 Waveform............................................................6-17
6.6 Harmonics ...........................................................6-19
6.7 Power Quality .....................................................6-25
Chapter 7 Other Features
7.1 Other Features ......................................................7-1
Chapter 8 Connecting to Peripheral Devices
8.1 Transferring Data to a PC .....................................8-1
8.2 Signal Control with External Devices ....................8-2
8.3 Supplying Power through Measurement Lines .....8-5
Chapter 9 PC Software for Configuration and Analysis
9.1 PC Software for Configuration and Analysis .........9-1
Chapter 10 Troubleshooting
10.1 Troubleshooting ..................................................10-1
10.2 Error Messages and Corrective Actions .............10-3
iv
Appendix
When Using 96030, 96033, or 96036 ......................... App-1
Index

Chapter 1 Product Outline

1.1 Feature Outline

Displaying Instantaneous, Integrated, and Demand
Displays instantaneous, average, maximum and minimum values for current, voltage, active power, apparent power, and reactive power. Switch the screen to display integrated values. Set a demand target value and display the demand values from start to finish. See “Displaying Instantaneous, Integrated, and Demand.”
Starting and Ending Recording
Start recording normally or start by following the Quick Start Naviga­tion, which guides you through the necessary setup for recording. See “Starting and Stopping Recording.”
Displaying Vectors and Checking the Wiring
Displays a vector diagram of voltage and current for the measurement channel and checks the wiring. See “Vector.”
1-1
1.1 Feature Outline
Displaying Waveforms
Displays waveforms of voltage and current for the measurement channel. See “Waveforms.”
Harmonic Analysis
Displays harmonic components superimposed on the voltage and current for the measurement channel. See “Harmonic Analysis.”
Displaying Power Supply Quality Events
Displays the swell, dip, interruption, transient, inrush current, and flicker of the measured voltage. See “Power Supply Quality.”
1-2
Setup (SET UP)
Configures the CW500 and measurement. See “Setup.”

1.2 Features

This product is a clamp-type power quality analyzer that supports a variety of wiring systems. It simultaneously performs simulations of instantaneous values, integrated values, demand values for power management, harmonic analysis, power quality events, and phase lead capacitor values for improving the power factor. Voltage and current can be displayed as waveforms and vectors. Measured data can be saved to files in SD memory cards or internal memory, and the files can be transferred to a PC through USB communication.
Safety Design
This product complies with safety standard IEC 61010-1 CAT. IV 300V/ CAT. III 600V/CAT. II 1000V.
Power Quality Measurement
This product supports international power quality measurement standard IEC61000-4-30 Class S. It can perform highly accurate frequency and rms voltage measurements and harmonic analysis as well as simultaneously measure without gaps swell, dip, interruption, transient, inrush current, and flicker that are necessary for capturing and monitoring power abnormalities.
Power Measurement
This product can measure active, reactive, and apparent powers as well as watt-hour, power factor, rms current, phase angle, and neutral line current.
Wiring Systems
This product supports single-phase two-wire (four systems), single-phase three-wire (two systems), three-phase three-wire (two systems), and three-phase four-wire measurement lines.
Demand Measurement
You can monitor in a simplified form the usage condition so that the specified target value (contract demand) is not exceeded.
1-3
1.2 Features
Waveform and Vector Displays
Voltage and current can be displayed as waveforms and vectors.
Saving Measured Data
This product is equipped with a logging function whose recording interval can be specified. Measured data can be saved manually or by specifying the date and time. Further, the print screen function can be used to save image data to SD memory cards.
Dual Power System
This product can be driven by AC power or batteries. For batteries, AA alkaline batteries (LR6) or off-the-shelf rechargeable AA nickel-metal hydride batteries (Ni-MH) can be used. For rechargeable AA nickel-metal hydride (Ni-MH) batteries, use the battery manufacturer’s charger to charge them. You cannot charge them on the CW500. If a power failure occurs while the CW500 is running off of AC power, the power supply is automatically switched to battery power.
Display Screen
This product has a color TFT LCD.
Easy Wiring and Compact, Lightweight Design
Wiring is easy as this product is a clamp type. Its compact, lightweight design makes it convenient to install and carry around.
Application
Files saved in SD memory cards and internal memory can be downloaded to a PC through USB. Downloaded files can be analyzed easily using the accompanying PC software. It is also possible to configure the CW500 from a PC.
Auxiliary I/O Function
The 2-channel analog input (DC voltage) can be used to simultaneously measure analog signals from thermometers, lux meters, and the like. If a power quality event occurs, a contact signal can be sent to an alarm through the 1-channel digital output.
1-4

1.3 System Configuration Diagram

電流入力
Current input
AC voltage input
Digital output (1 ch) to recorder or alarm
Analog input (2 ch) from AA alkaline batteries (LR6)
AA Ni-MH batteries
thermometer or illuminometer
USB
Power cord
SD memory
PC
card
(Option)
1-5

1.4 Measurement Procedure

Getting Started Guide, “Making Preparations for Measurements” Page 5
Connecting cords and sensors to the CW500
Getting Started Guide, “Connecting a Voltage Probe and Clamp-on Probe”
Getting Started Guide, “Power Supply” Page 7
Setting common measurement items
5.2, “Basic Settings” Page 5-3
Getting Started Guide, “Safety Precautions” Page vii
Configuring measurement settings and save method
5.3, “Measurement Settings” Page 5-12 and 5.4, “Record Settings” Page
6.1, “Instantaneous Value W” Page 6-1 and 6.4, “Vectors” Page 6-14
Measurement preparation
Page 15
Turning the power on
Loading CW500 settings
5.6, “Save Data” Page 5-36
Wiring measurement lines
Checking the wiring
6.4, “Vectors” Page 6-14
5-25.
Checking measured values
4.6, “Starting and Stopping Recording” Page 4-12
Starting and stopping recording
Checking Measured Data
Chapter 6, “Display Items of Each Screen” Page 6-1
Removing cords and sensors from the measurement line and turning the
power off
Analyzing recorded data on a PC
8.1, “Transferring Data to a PC” Page 8-1
Chapter 9, “PC Software for Configuration and Analysis” Page 9-1
1-6
Display (LCD)

Chapter 2 Component Names

2.1 Display (LCD) and Control Keys

Control keys
2-1

2.2 Connectors

AC voltage input terminals
Power inlet
(VN, V1, V2, V3)
Current input terminals (A1, A2, A3, A4)
Terminal covers
Wiring System
Single-phase two-wire (1 system) Single-phase two-wire (2 system) Single-phase two-wire (3 system) Single-phase two-wire (4 system) Single-phase three-wire (1 system) Single-phase three-wire (2 system) Three-phase three-wire (1 system) Three-phase three-wire (2 system) Three-phase three-wire 3A Three-phase four-wire
1P2W×1 1P2W×2 1P2W×3 1P2W×4 1P3W×1 1P3W×2 3P3W×1 3P3W×2 3P3W3A 3P4W×1
AC Voltage
Input Terminal
VN, V1 A1 VN, V1 A1, A2 VN, V1 A1, A2, A3 VN, V1 A1, A2, A3, A4 VN, V1, V2 A1, A2 VN, V1, V2 A1, A2, A3, A4 VN, V1, V2 A1, A2 VN, V1, V2 A1, A2, A3, A4 V1, V2, V3 A1, A2, A3 VN, V1, V2, V3 A1, A2, A3
Current Input
Terminal*
* Current terminals that are not used in wiring can measure only rms values
and harmonics.
2-2

2.3 Side Panel

Analog input/digital output area
Analog input/digital output terminals
With the Connector Cover Closed
SD memory card area
With the Connector Cover Open
SD memory card slot USB port
USB area
2-3

2.4 Voltage Probe and Current Clamp-on Probe

Alligator Clip (the end of the voltage probe)
Barrier
Current Clamp-on Probe
Barrier
Barrier: A mark for securing the minimum required creep and spatial distance to prevent electric shock during operation. When taking a measurement, be careful that your finger or the like does not cross over the barrier.
2-4

Chapter 3 Basic Operation

3.1 Description of Control Keys

Display Function keys
Selects or executes the menu items at the screen bottom.
PRINT SCREEN key
Saves the LCD screen as a BMP file.
DATA HOLD/ KEY LOCK key DATA HOLD
Holds the display. But, measurement continues.
KEY LOCK
Hold down for 2 s to lock all keys. Hold down for 2 s again to release.
Power key
Turns the power on and off.
Display switch key
See page 3-2.
SETUP Key
Changes basic, measurement, recording, saved data, and other settings.
START/STOP key
Starts or stops recording.
Status LED
Shows the recording status. Green solid: Recording Green blinking: Standby Red blinking: Backlight off
LCD key
Turns on/off backlight, adjust contrast and brightness.
ENTER key
Confirms the operation or setting.
Arrow keys
Selects items, changes displays.
ESC/RESET key
Resets to the original setting.
3-1
Display Switch Key
W/Wh key
Displays instantaneous values, integrated values, and “demand”
Vector key
Displays phases
Waveform key
Displays voltage and current waveforms
Harmonic analysis key
Displays harmonic voltage, harmonic current, and harmonic power
QUALITY key
Displays the occurrence of swell, dip, interruption, transient, inrush current, and flicker
3-2

3.2 Marks Displayed in the Top Area of the LCD

Mark Status When Displayed
Running on batteries. Shows the battery level using four levels.
Running on AC power.
Screen updating is held.
Keys are locked.
The buzzer is turned off.
SD memory card can be used.
Recording to SD memory card.
Not enough space in SD memory card to record.
Unable to access SD memory card.
Possible to record to internal memory. This appears when recording is started without an SD memory card inserted.
Recording to internal memory.
Not enough space in internal memory to record.
Waiting to record.
Recording measurement values.
Recording medium is full.
USB can be used.
Bluetooth® can be used.
3-3

3.3 Display Symbols

Display Symbol
1
V
P
PF
DC1
2
An
WP+
WP-
THD
Pst
(1min)
Phase voltage
+
Active power
power
factor
Consumption Regeneration
– + Lag – Lead
Analog input
channel 1 voltage
Neutral line current
Active energy
(consumption)
Active energy
(regeneration)
Voltage/current distortion
1-minute voltage flicker
1 The V and VL displays can be customized when 3P4W is selected. 2 An appears only when 3P4W is selected. 3 PA and C can be displayed by customization.
VL
Q
f
DC2
PA
WS+
WS-
Pst
1
Line voltage
Reactive
power
+ Lag – Lead
Frequency
Analog input
channel 2 voltage
3
Phase
angle
+ Lag
– Lead
Volt-ampere hours
(consumption)
Volt-ampere hours
(regeneration)
Short term voltage
flicker
A
S
3
C
WQi+
WQc+
Plt
Apparent power
Phase advance
capacitance
Reactive energy
Reactive energy
Long term voltage
Current
capacitor
(lag)
(lead)
flicker
3-4

3.4 Backlight and Contrast Adjustment

Backlight brightness can be changed
Brightness adjustment
to any of the 11 available levels.
Holding down the LCD key for 2 seconds when the backlight is on displays slide bars for adjusting the backlight brightness and display contrast. To adjust the brightness or contrast, use the arrow keys to move the slide bars. After adjusting, press ENTER to confirm. To cancel the adjustment, press ESC or LCD again.
to any of the 11 available levels.
Contrast adjustment Contrast can be changed
3-5

3.5 Screens and Screen Configuration

Demand
Wh (Integrated value)W (instantaneous value)
Instantaneous, Integrated, and Demand
Switching the W/Wh Screen
Each time you press function key F1, the display screen changes.
Select and change the items to be displayed.
Zoom
Zoom in on selected items.
4 windows 8 windows
Customize
Trend Measurement variation trends are displayed on a graph.
3-6
Vector
Switching the Vector Screen
Wiring diagram
Displays the diagram of the selected wiring
3.5 Screens and Screen Configuration
Wiring check Displays the results of check items
Waveform
Switching the Waveform Screen
3-7
3.5 Screens and Screen Configuration
Voltage, Linear, Overall display
Harmonics
Switching the Harmonic Analysis Display Items
Current Power
List, percentage content
Logarithm Zoom
Phase angle Rms value
Current Power
3-8
Power Quality
Event Flicker
Use the left and right arrow keys
Switching the Quality Display Items
Setup
Switching the Setup Display Items
3.5 Screens and Screen Configuration
switch between screens.
3-9

Chapter 4 Recording

4.1 Starting and Stopping Recording

Starting Recording
Press START/STOP.
You can select the recording start method from “Quick start guide” and “Start now.”
Quick start guide
You can easily start recording by setting the items by following the instructions displayed on the screen. However, the items that you can set are those related to wiring and recording. If you need to specify other settings, set them from the SETUP menu.
Start now
Recording starts immediately using the current settings.
<Procedure>
Using the up and down arrow keys, select “Quick start guide” or “Start now,” and press ENTER. To cancel, press ESC.
4-1
Recording method
4.1 Starting and Stopping Recording
Stopping Recording
While recording is in progress, press START/STOP.
Data number
Record items
Recording information is displayed, and recording stops.
Display Items
Recorded
data
number
Elapsed time Elapsed time from the start of recording is displayed.
Recording
method
Save to
Record items Measurement items being recorded are displayed.
The ID number of the recorded data is displayed. This is also used as the name of the folder in which measured data is saved.
Manual
Constant
rec.
Time period
rec.
The recording start date and time are displayed.
The recording start/end date and time are displayed.
The recording start date and time, recording period, and recording time are displayed.
The location where measured data is being recorded to is displayed.
<Procedure>
Using the up and down arrow keys, select CANCEL or STOP, and then press ENTER. You can also cancel by pressing ESC.
4-2

4.2 Starting to Record with “Quick start guide”

Set the record items.
Set the wiring system.
Select the item you want to record.
* Greater the number of items, the greater the file
size, which means shorter recording time.
Connect to the circuit to be measured.
* Read and follow the safety precautions.
See the Getting Started Guide (IM CW500-02EN).
Check wiring connection.
Check the test environment.
Select the wiring system to be measured.
* Select a proper wiring system for accurate
measurements.
See page 4-5.
Check the test environment.
* Performs a CW500 self-diagnosis, wiring status
* We recommend that you execute this check in
check, and connected sensor identification.
order to record in the correct conditions. The test takes about 10 seconds.
See page 4-6.
4-3
4.2 Starting to Record with “Quick start guide”
Select the rec interval
Select the rec method
Select a recording interval.
* Selecting a short interval results in a large
See page 5-29.
Ready. Recording will start.
When recording starts, the screen shows REC, and the Logging LED turns green. To stop recording, press START/STOP, and follow the instructions on the screen.
Confirm to start recording.
file size preventing long-term recording.
Start recording
Select the rec. method.
See page 4-9.
4-4
be reversed.
4.2 Starting to Record with “Quick start guide”
Setting the Wiring System
You can select from the following wiring systems.
L
Power
supply
N
A1
VN
V1
A2
V2
VN
V1
L1(R)
Power
supply
L2(S)
L3(T)
L1(R)
Power
supply
L2(S)
L3(T)
N N
A3
A1
A4
A2
L
Load
(1)
N
1P2W
L
Load
(2)
N
1P2W
L
Load
(3)
N
1P2W
L
Load
(4)
N
1P2W
L1(R)
L2(S)
L3(T)
L1(R)
L2(S)
L3(T)
A3
A4
L1(R)
L2(S)
L3(T)
1P2W×2
1P2W×3
1P2W×4
Load
(1)
3P3W
Load
(2)
3P3W
Load
3P4W
1P2W×1
3P3W×1
3P3W×2
3P4W
L1
Power
supply
N
L2
V1
Power
supply
Orientation of the current clamp-on probe
Power
V2
L1(R)
L2(S)
L3(T)
VN
A1
V1
V2
L1
Load
N
1P3W
L2
L1
Load
N
1P3W
L2
A2
A3
A4
L1(R)
L2(S)
L3(T)
A1
A2
A3
V3
Load
(1)
1P3W×2
(2)
Load
3P3W
Arrow: load
1P3W×1
3P3W3A
V1
A1
A2
V2
V3
VN
A3
* If clamped in the reverse direction, the polarity of the active power (P) value will
4-5
Test environment check
Automatically detects connected current probes
4.2 Starting to Record with “Quick start guide”
Test Environment Check
Select Start test and press ENTER to check the test environment and display the results.
Select the OK or NG of a test result to see the details.
Wiring check
Displays the test results of each item. * If measuring at site with extremely poor power factor, this check may fail even if the wiring is correct.
Self-diagnosis
Displays the results of a system operation check.
4-6
Sensor detection
and sets the range to their maximums.
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