Mitsubishi Electric ME96SSEB-MB User manual

Electronic Multi-Measuring Instrument
MODEL
ME96SSEB-MB
User's Manual: Detailed Edition
●Before use, you should read this user’s manual carefully
to properly use this instrument.
Be sure to forward the manual to the end user.

1
Check your delivery
The following table shows a list of the instrument accessories.
When unpacking your package, check all the contents.
Contents
Quantity
Specification
User’s Manual
(Digest version)
1
A3 size
Attachment lug
(with a screw)
2
Optional plug-in module
The optional plug-in modules cannot be attached to this product.
If you need a function such as analog output, CC-Link communication, digital input/output, MODBUS TCP
communication, or logging function, use other model, ME96SSHB-MB or ME96SSRB-MB which can be
combined with the optional plug-in modules.

2
Features
The instrument measures load status by wiring the secondary sides of VT (Voltage Transformer) and CT
(Current Transformer) in the power receiving and distribution system and displays various measured values.
The instrument supports Active Energy Class 0.5S.
The password protection prevents undesired setting change and measured data deletion.
The transmission function, MODBUS RTU communication, transmits measured data to superior monitoring
systems.
The instrument fulfills the requirements of the CE marking, UL standards, KC mark, and FCC/IC.
The support function for checking input wiring enables to determine the wiring condition in the test mode.
When either a voltage input or current input is incorrectly wired, the incorrect wiring part is displayed on the
screen and it also shows a current phase angle, a voltage phase angle, and each value of active power,
voltage, and current.
Trademark
MODBUS is a trademark of Schneider Electric USA Inc.
Other company and product names herein are trademarks or registered trademarks of their respective owners.
In the text, trademark symbols such as ‘TM’and ‘®’may not be written.

3
Table of Contents
Check your delivery.................................................................................................................................................1
Optional plug-in module...........................................................................................................................................1
Features...................................................................................................................................................................2
Trademark ...............................................................................................................................................................2
Table of Contents ....................................................................................................................................................3
Safety Precautions...................................................................................................................................................5
EMC Directive Instruction........................................................................................................................................9
Table for measuring element code........................................................................................................................10
1. Name and Function of Each Section................................................................................................................11
Name of Each Part.................................................................................................................................11
LCD Function..........................................................................................................................................12
Function of Operation Buttons................................................................................................................13
2. Each Mode Function.........................................................................................................................................15
3. How to Set up...................................................................................................................................................16
Setting Flow............................................................................................................................................16
Setting Menu 1: Basic Setup (Settings for Phase Wire System, Display Pattern, VT/Direct Voltage, and
CT Primary Current) ...............................................................................................................................19
Setting Menu 2: Communication Settings (MODBUS RTU Communication Settings) ..........................23
Setting Menu 3: Display Settings (Settings for Display of Active/Reactive Energy and Harmonic
Measurement) ........................................................................................................................................24
Setting Menu 4: LCD Settings (Settings for Model Display, Version Display, Backlight, and Update
Time).......................................................................................................................................................25
Setting Menu 5: Alarm Settings (Settings for Upper/Lower Limit Alarm and Motor Starting Current
Mask Function).......................................................................................................................................26
Setting Menu 6: No Settings...................................................................................................................29
Setting Menu 7: No Settings...................................................................................................................29
Setting Menu 8: Special Settings (Settings for Operating Time and IEC Mode)....................................30
Setting Confirmation Menu 1 to 9: How to Confirm the Settings in the Setting Menu 1 to 8, 9 Test
Mode.......................................................................................................................................................32
Initialization of Related Items by Changing a Setting.............................................................................33
Initialization of All Settings......................................................................................................................33
Settings for Special Display Pattern P00................................................................................................34
Example for Easy Setup.........................................................................................................................36
4. How to Use Test Mode.....................................................................................................................................38
Test Menu 1: Communication Test ........................................................................................................39
Test Menu 2 to 5：No Test Menu ..........................................................................................................40
Test Menu 6：Functions for Determining Incorrect Wiring......................................................................40
4.3.1. Incorrect Wiring Patterns Detected by ①Pattern display of incorrect wiring.................................43
5. Operation..........................................................................................................................................................46
Basic Operation......................................................................................................................................46
5.1.1. How to Switch the Measurement Screen........................................................................................46
5.1.2. How to Switch Phase Display.........................................................................................................46
5.1.3. How to Display in Cyclic Mode .......................................................................................................47
5.1.4. Harmonics Display..........................................................................................................................47
5.1.5. Maximum/Minimum Value Display..................................................................................................48
5.1.6. How to Display Maximum/Minimum values....................................................................................48
5.1.7. How to Clear the Maximum/Minimum Values.................................................................................48
5.1.8. Active Energy/Reactive Energy/Apparent Energy Display.............................................................49
5.1.9. How to Change the Display Digit of Active/Reactive/Apparent Energy..........................................49
5.1.10. How to Reset Active/Reactive/Apparent Energy to Zero................................................................50
5.1.11. How to Measure Reactive Energy (2 quadrant/4 quadrant measurement）...................................50
5.1.12. Each Measuring Item Display during Power Transmission............................................................51
5.1.13. Demand Time Period and Demand Value of Current demand.......................................................51
Usage Depending on the Application (Alarm, Operating Time, Password, etc.) ...................................52
5.2.1. Upper/Lower Limit Alarm Display and Action .................................................................................52
5.2.2. How to Cancel the Upper/Lower Limit Alarm..................................................................................53
5.2.3. How to Stop Backlight Blinking Caused by the Upper/Lower Limit Alarm......................................53
5.2.4. Operating Time Display ..................................................................................................................53
5.2.5. How to Reset Operating Time to Zero............................................................................................53
5.2.6. How to Prevent the Maximum Value Update by Motor Starting Current........................................54
5.2.7. Password Protection Setting...........................................................................................................54

4
6. Others...............................................................................................................................................................55
Display Pattern List.................................................................................................................................55
Standard Value.......................................................................................................................................57
Measuring Item.......................................................................................................................................59
Instrument Operation..............................................................................................................................61
Troubleshooting......................................................................................................................................62
7. Installation.........................................................................................................................................................63
Dimensions.............................................................................................................................................63
How to Install..........................................................................................................................................64
7.2.1. Mounting Hole Dimensions.............................................................................................................64
7.2.2. Mounting Position ...........................................................................................................................64
7.2.3. Mounting and Fixing........................................................................................................................64
How to Connect Wiring...........................................................................................................................65
7.3.1. Specifications on the Applicable Electrical Wire.............................................................................65
7.3.2. Wiring of the Unit ............................................................................................................................65
7.3.3. Check the connection .....................................................................................................................65
Wiring Diagram.......................................................................................................................................67
8. Specifications....................................................................................................................................................72
Product Specifications............................................................................................................................72
Compatible Standards............................................................................................................................73
MODBUS RTU Communication Specifications......................................................................................73
Setting Table (Factory Default Settings and Customer’s Notes Settings) .............................................74
9. Appendix...........................................................................................................................................................75
ME96SS Calculation Method (3-phase Unbalanced System with Neutral) ...........................................75
A List of Examples for Incorrect Wiring Display .....................................................................................76
9.2.1. 3-phase 4-wire System...................................................................................................................76
9.2.2. 3-phase 3-wire System...................................................................................................................85
9.2.3. 1-phse 3-wire System.....................................................................................................................92

5
Safety Precautions
Before use, read these instructions carefully to properly operate the instrument.
Be sure to follow the precautions described here for personnel and product safety.
Keep this manual ready to hand and accessible for future use at all times.
Be sure to forward the manual to the end user.
If you consider using the instrument for a special purpose such as nuclear power plants, aerospace, medical
care, or passenger vehicles, consult with our sales representative.
The instructional icon in the manual is described as follows.
The caution icon ( ) on the main unit indicates that incorrect handling may cause
hazardous conditions. Always follow the subsequent instructions ( ) because
they are important to personal safety. Failure to follow them may result in an
electric shock, a fire, erroneous operation, or damage to the instrument. If the
instrument is used in a manner not specified by the manufacturer, the protection
provided by the instrument may be impaired.
CAUTION
The terminals of auxiliary power (MA, MB) and voltage input (P1, P2, P3, PN) have
hazards of electric shock, explosion, or arc flash. Turn off the power supply of auxiliary
power and input circuit and then handle the instrument.
■Precautions on use environment and conditions
Do not use the instrument in the following circumstances:
Failure to follow the instruction may cause a malfunction or reduced product life time.
The ambient temperature exceeds the range -5°C to +55°C.
The average daily temperature exceeds +35°C.
The relative humidity exceeds the range 0 to 85% RH, or condensing.
The altitude exceeds 2000 m.
Pollution Degree: more than 2 *Note 1
Exposed to much dust, corrosive gas, salty environment, or oil mist
Transient over voltage: 4000 V *Note 1
Exposed to excessive vibration or impact
Exposed to rain or water drops
Exposed to direct sunlight
Pieces of metal or inductive substances are scattered.
Exposed to strong magnetic fields or large exogenous noise
*Note1: For details about the Pollution Degree and the Transient over voltage category,
refer to EN61010-1:2010.
Grit, dust, and small insects cause poor contact or a failure such as insulation decline that caused by
deposition and moisture absorption. Furthermore, in the area where the air contains conductive dust, a
failure such as a product malfunction or insulation deterioration occurs in a relatively short time. In this
case, you must take measures against it such as putting the instrument in an enclosed board. In
addition, if the temperature inside the board rises, the measures must be undertaken as well.
CAUTION

6
Safety Precautions
■Precautions on Installation and wiring
Be sure to read the instructions carefully before installation and wiring.
CAUTION
A qualified electrician must install and wire the instrument for safety.
Supply power to the instrument after completing its assembly work on a cabinet door.
The instrument is to be mounted on the cabinet door. All connections must be kept
inside the cabinet.
The following table shows the specifications on the input/output terminal.
■Auxiliary power supply and measuring element
Auxiliary power supply
100 to 240 V AC (±15%) 50 Hz to 60 Hz
100 to 240 V DC (-30% ＋15%)
MA, MB
terminal
Measuring
element
Voltage
3-phase 4-wire: max 277 V AC/480 V AC
3-phase 3-wire: (DELTA) max 220 V AC
(STAR) max 440 V AC
1-phase 3-wire: max 220 V AC/440 V AC
1-phase 2-wire: (DELTA) max 220 V AC
(STAR) max 440 V AC
Category III
P1, P2, P3,
PN terminals
Current
5 A (CT secondary side),
max 30 V AC
Category III
+C1, C1, +C2,
C2, +C3, C3
terminals
Frequency
50 Hz or 60 Hz
The current input terminals must be connected to a CT, external equipment, with basic
insulation.
Be sure to continuously connect the terminals for voltage-measuring purpose and current-
measuring purpose during operation.
■Others
MODBUS RTU
communication
T/R+,T/R-,SG terminals
max 35 V DC
Keep the protection sheet affixed to the front of the instrument during installation and
wiring.
Do not drop the instrument from high place. If it is dropped and the display cracks, do
not touch the liquid leaking from the broken LCD or do not get it in your mouth. If you
touch the liquid, rinse it off with soapy water at once.
Do not work under live-line condition. Otherwise, an instrument failure, an electric shock,
or a fire may be caused.
When tapping or wiring, take care not to enter any foreign objects such as chips or wire
pieces into the instrument.
If you pull the wires with a strong force when connecting them to the terminals, the
terminals may come off. (Tensile load: 39.2N or less)
Check the wiring diagram carefully. Inappropriate wiring can cause a failure of the
instrument, an electric shock, or a fire.
Use appropriate size wires. The use of an inappropriate size wire can cause a fire due
to heat generation.
Use crimp-type terminals compatible with the wire size. For details, refer to 7.3.1
Specifications on the Applicable ElectricalWire. The use of an inappropriate terminal
can cause a malfunction, failure, or burnout of the instrument or a fire due to damage to
the terminal or poor contact.
Tighten the terminal screws with a specified torque and use a suitable pressure
connector. For details, refer to 7.3.1Specifications on the Applicable Electrical
Wire. Excessive tightening can cause damage to the terminals and screws.
Be sure to confirm the wiring connections strictly after the connection. Poor connection
can cause a malfunction of the instrument, an electric shock, or a fire.
In order to prevent invasion of noise, MODBUS RTU communication cables, auxiliary
power supply cables, and other signal cables must not be placed close to or bound
together with power lines or high voltage lines. When lying parallel to the power lines or
high voltage lines, refer to the following table for the separation distance. (Except the
input part of the terminal block)
Conditions
Distance
Power lines of 600 V or less
300 mm or more
Other power lines
600 mm or more

7
Safety Precautions
■Precautions on preparation before use
Observe the use conditions and environment requirements for installation place.
You must set up the instrument before use. Read the manual carefully to set it up correctly. If the setup is
incorrectly done, the instrument will not be properly operated.
Check the power rating of the instrument and then apply proper voltage.
■Precautions on how to use
When operating the instrument, check that active bare wires do not exist around it. If any bare wire exists,
stop the operation immediately and then take appropriate action such as insulation protection.
If a power outage occurs during the setup, the instrument will not be set up correctly. Set it up again after
power recovery.
CAUTION
Do not disassemble or modify the instrument to use. Otherwise, a failure, an electric
shock, or a fire can be caused.
Use the instrument within the rating specified in the manual. If you used it outside the
rating, it might cause not only a malfunction or failure of the instrument but also ignition
or burnout.
Do not open the CT secondary side while the primary current is energized. When the CT
secondary side circuit is open, the primary current flows. However, the secondary
current does not flow. Therefore, a high voltage is generated at the CT secondary side
and the temperature rises, resulting in insulation breakdown in the CT secondary
winding. It may lead to burnout.
When external equipment is connected to the external terminals, the instrument and
external equipment must not be powered and be used after the definitive assembly on
a cabinet door.
The rating of the terminal of external equipment should satisfy that of the external
terminal of the instrument.
■Precautions on maintenance
Wipe dirt off the surface with a soft dry cloth.
Do not leave a chemical cloth in contact with the instrument for a long time or do not wipe it with benzene,
thinner, or alcohol.
In order to properly use the instrument for a long time, conduct the following inspections:
(1) Daily maintenance
①No damage in the instrument
②No abnormality with LCD indicator
③No abnormal noise, smell or heat generation
(2) Periodical maintenance
Inspect the following item every six months to once a year.
①No looseness of installation and terminal block connection
CAUTION
Be sure to conduct periodic inspection under the electric outage condition. Failure to follow
the instruction may cause a failure of the instrument, an electric shock, or a fire. Tighten
the terminals regularly to prevent a fire.
■Precautions on storage
To store the instrument, turn off the power supplies of auxiliary power and input circuit, remove the wires
from the terminals, and then put them in a plastic bag.
For long-time storage, avoid the following places. Otherwise, there is danger of an instrument failure or
reduced product life time.
The ambient temperature exceeds the range -25°C to +75°C.
The average daily temperature exceeds +35°C.
The relative humidity exceeds the range 0 to 85% RH, or condensing.
Exposed to much dust, corrosive gas, salty environment, or oil mist.
Exposed to excessive vibration or impact.
Exposed to rain or water drops.
Exposed to direct sunlight.
Pieces of metal or inductive substances are scattered.

8
Safety Precautions
■Warranty
The warranty period is for one year from the date of your purchase or 18 months after the
manufacturing date, whichever is earlier.
During the warranty period, if any failure occurred in standard use that the product is used in the
condition, method, and environment followed by the conditions and precautions described in the
catalog and user’s manual, we would repair the product without charge.
Even within the warranty period, non-free repair is applied to the following cases.
①Failures caused by the customer’s improper storage, handling, carelessness, or fault.
②Failures caused by faulty workmanship
③Failures due to faults in use or undue modification
④Failures due to force majeure such as a fire or abnormal voltage or due to natural disasters such as
earthquakes, windstorms, or floods.
⑤Failures caused by the problem in question that could not be predicted with the technology available
at the time the product was shipped.
Our company shall not be liable to compensate for any loss arising from events not attributable to our
company, customers’ opportunity loss or lost earnings due to failure of the product, any loss, secondary
loss, or accident caused by a special reason regardless of our company’s predictability, damage to
other products besides our products, or other operations
■Replacement cycle of product
It is recommend that you renew the product every ten years although it depends on your use condition.
The long-term use of the product may cause discoloration of the LCD or a product malfunction.
■Disposal
Treat the product properly as industrial waste.
Batteries are not used for this product.
■Packaging materials and user’s manual
For reduction of environment load, cardboard is used for packaging materials and the manual is printed
with recycled papers.

9
EMC Directive Instruction
This section summarizes the precautions to have the cabinet constructed with the instrument conform to
the EMC Directive.
However, the method of conformance to the EMC Directive and the judgment on whether or not the
cabinet conforms to the EMC Directive must be determined finally by the manufacturer.
This instrument complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This instrument may not cause harmful interference, and (2) this instrument must accept any interference
received, including interference that may cause undesired operation.
1．EMC Standards
EN 61326-1
EN 61000-3-2
EN 61000-3-3
2．Installation (EMC directive)
The instrument is to be mounted on the panel of a cabinet.
Therefore, the installation to the cabinet is important not only for safety but also for conformance to EMC.
The instrument is examined in the following conditions.
A conductive cabinet must be used.
The conductivity of the six surfaces of the cabinet must be all ensured.
The cabinet must be grounded by thick wires for low impedance.
The hole drilling dimensions on the cabinet must be 10 cm or less in diameter.
The terminals for protective earth and functional earth must be grounded by thick wires for low impedance.
The use of the terminal for protective earth is important not only for safety but also for conformance to
EMC.
The connecting part of the terminal must be all placed inside the cabinet.
Wiring outside the cabinet must be conducted with shielded cables, and the cables must be fixed to the
panel with clamps. (Strip the covering of shielded cable by a portion of clamp installation and then mask
the grounding part of the panel and clamp so as not to be painted.)

10
Table for measuring element code
The following table shows a list of measuring element codes used in the manual.
Measuring element code
Measuring element name
A1
Current, 1-phase
A2
Current, 2-phase
A3
Current, 3-phase
AN
Current, N-phase
AAVG
Current, average
DA1
Current demand, 1-phase
DA2
Current demand, 2-phase
DA3
Current demand, 3-phase
DAN
Current demand, N-phase
DAAVG
Current demand, average
V12
Voltage, between 1-2 lines
V23
Voltage, between 2-3 lines
V31
Voltage, between 3-1 lines
VAVG（L-L）
Voltage, average, line to line
V1N
Voltage,1N-phase
V2N
Voltage, 2N-phase
V3N
Voltage, 3N-phase
VAVG（L-N）
Voltage, average, line to neutral
W1
Active power, 1-phase
W2
Active power, 2-phase
W3
Active power, 3-phase
ΣW
Active power, total
var1
Reactive power, 1-phase
var2
Reactive power, 2-phase
var3
Reactive power, 3-phase
Σvar
Reactive power, total
VA1
Apparent power, 1-phase
VA2
Apparent power, 2-phase
VA3
Apparent power, 3-phase
ΣVA
Apparent power, total
PF1
Power factor, 1-phase
PF2
Power factor, 2-phase
PF3
Power factor, 3-phase
ΣPF
Power factor, total
Hz
Frequency
Wh
Active energy
varh
Reactive energy
VAh
Apparent energy
HI
Harmonic current
HIN
Harmonic current, N-phase
HV
Harmonic voltage
THDi
Harmonic current total distortion ratio
THDv
Harmonic voltage total distortion ratio

11
1. Name and Function of Each Section
Name of Each Part
■The front of the unit
■The back of the unit
Operation buttons
*For details, refer to
1.3 Function of
Operation Buttons.
LCD with backlight
Current Input terminals
+C1, C1: Circuit current is input.
+C2, C2: Circuit current is input.
+C3, C3: Circuit current is input
Voltage Input terminals
P1, P2, P3, PN (P1, NC, P3, P2): Circuit voltage is input.
Terminal covers
Auxiliary power input terminals
MA, MB: Auxiliary power is connected.
: Ground terminal (Ground resistance: 100 Ω or less)
MODBUS RTU communication terminals
T/R+: MODBUS RTU communication transmission terminal
T/R-: MODBUS RTU communication transmission terminal
SG: MODBUS RTU signal ground terminal
SLD: Shielded wire terminal (Ground resistance: 100 Ω or less)

12
1. Name and Function of Each Section
LCD Function
Note: The above display is an example for explanation.
No.
Name of each part
Function
1
LEAD display
Light up on the reactive energy (imported lead)/ (exported lead) screen.
2
LAG display
Light up on the reactive energy (imported lag)/ (exported lag) screen.
3
Digital element display
Display measuring elements expressed in digital numbers
4
Digital display
Display measured values in digital numbers
5
Unit
Display the units of measured values
6
Setup status
Light up in the setting mode
Blink in the setting confirmation mode
7
Test mode status
Light up in the test mode
8
Clock status
Light up when operating time is displayed
9
Upper/lower limit alarm
status
Blink when the upper/lower limit alarm is generating
10
Communication status
Specification
ON
Blink
OFF
MODBUS RTU
communication
Normal
Communication error
such as wrong
address *1
Hardware
error
*1. For details, refer to 6.5 Troubleshooting.
11
Harmonics
Light up when harmonic is displayed
12
Metering status
Blink when imported active energy is measured *Note 1
*It appears on the active energy (imported) screen only.
Note 1: The blinking cycle is constant regardless of measuring input size.
5
4
9
6
7
1
2
12
11
10
8
3

13
1. Name and Function of Each Section
Function of Operation Buttons
The function of each operation button varies
depending on how to press the button.
<Meaning of marks>
○: Press, □: Press for 1 second or more, ◎: Press for 2 seconds or more, ―― :Press simultaneously
Operation
Mode
Button name
Function
SET
－
＋
RESET
MAX/MIN
PHASE
DISPLAY
Operating mode
Display switching
○
Switch the measurement screen.
○
○
Switch the measurement screen in the reverse direction.
○
Switch phase display.
Switch between the harmonic RMS value and distortion ratio
on the harmonics display screen.
○
Enter/Exit the Max/Min value screen.
◎
Enter the cyclic display mode for measurement screen. Refer
to 5.1.3.
◎
Enter the cyclic display mode for phase. Refer to 5.1.3.
Switch between the harmonic RMS value and distortion ratio
in cyclic mode on the harmonics display screen.
◎
◎
Change the units such as Wh, varh, and VAh or display the
lower-digit enlarged view. Refer to 5.1.9.
Measured value clearness/
Alarm reset
◎
Clear the maximum and minimum
values displayed on the screen.
They are available
on the Max/Min
value screen.
◎
◎
Clear maximum and minimum values
for every item in every screen.
◎
◎
◎
Reset Wh, varh, and VAh to zero.
All measured values are reset to zero simultaneously.
◎
Reset operating time to zero.
(The operating time displayed on the screen only)
○
Reset the alarm displayed on the
screen.
They are available
only when set to
manual alarm
cancellation.
◎
Reset all alarms at once.
(For every item in every screen)
○
Stop the backlight blinking caused by alarm only when set to
backlight blinking.
Mode switch
◎
◎
Enter the setting mode.
◎
Enter the setting confirmation mode.
◎
◎
Enter the password protection screen.
Setting mode/
Setting confirmation mode
Setting operation
○
Determine the settings and then shift to the next settings.
○
Return to the previous setting item.
○
□
○
□
Round up/down the setting value.
Pressing for 1 second or more enables fast forward.
□
Skip the settings and return to the setting menu screen.
○
Reflect the setting change on the END screen.
○
Cancel the setting change on the CANCEL screen.
Special
operation
□
□
Restart the instrument on the CANCEL screen.
◎
◎
Initialize to the factory default settings on the CANCEL
screen. Refer to 3.12.
Note: During backlight off mode, pressing any operation button first turns on the backlight. In addition, pressing any button
again enables the use of the functions in the above table.
SET －＋RESET MAX/MIN PHASE DISPLAY
SET button RESET button Phase button
+/- button MAX/MIN button DISPLAY button

14
1. Name and Function of Each Section
1.3. Function of Operation Buttons
CAUTION
When you execute a function such as ‘Reset Max/Min value’or ‘Reset Wh, varh, and
VAh to zero’, past data is deleted. If you need to keep the data, record the data before
the reset operation.
When you execute ‘Restart the instrument’, the entire measurement function
(measurement display, communication) will stop for a few seconds.

15
2. Each Mode Function
The instrument has the following operation modes.
When auxiliary power is supplied, the operating mode is first displayed.
Depending on the application, switch the operation mode to use.
Mode
Description
Reference
Operating
mode
This is a normal operation mode to display each measured value in digital
numerical number. In the operating mode, there are ‘Present value display’that
shows values at present and ‘Max/Min value display’that shows maximum and
minimum values in the past.
In addition, on each display screen, the cyclic display mode, which
automatically switches the display screen every 5 seconds, is available.
5 Operation
Setting
mode
This is a mode where you can change the settings for measurement function.
In addition, on the CANCEL screen, which is the screen to cancel the setting
change, the following special operations are available.
・Restart the instrument.
・Reset the settings to the factory default.
3 How to
Set up
Setting
confirmation
mode
(Test mode)
This is a mode where you can confirm the setting of each item.
In this mode, you cannot change the settings. Therefore, it is possible to
prevent from accidentally changing the settings.
The mode provides test function available at startup of systems.
・Communication Test: Without measurement input (voltage/current), fixed
numerical data can be returned.
・Support function for checking input wiring:
When either a voltage input or current input is
incorrectly wired, the incorrect wiring part is displayed
on the screen. In addition, useful information is also
displayed such as a current phase angle and voltage
phase angle.
3.10 or 4
How to Use
Test Mode
■Flow of each mode
SET
＋
－
Operating mode
Present value
display
Max/Min value
display
Setting mode
Setting
confirmation mode
Test mode
SET
SET
SET
SET
SET
RESET
End screen
CANCEL
screen
＋
Save the
settings
Cancel the
settings
Press for 2 seconds simultaneously.
When you
select “End”
in the menu
When you select
“End” in the menu
Press for 2 seconds
ON
Blink

16
3. How to Set up
Setting Flow
For measurement, you must set settings such as phase wire system, VT/Direct voltage, and CT primary current
in the setting mode.
From the operating mode, enter the setting mode and then set necessary items. Any items not set remain in the
factory default settings.
For normal use, only set up the items in the setting menu 1. For details on the settings, refer to 3.2.
For details on the factory default settings, refer to 8.4.
CAUTION
The setting change provides the initialization of the related setting items and
measured data. Therefore, check that beforehand. For details, refer to 3.11
Initialization of Related Items by Changing a Setting.
Measurement
screen
Setting Menu End
End screen
CANCEL
screen
Automatic shift
Demand
current
time period
CT current
VT/Direct
voltage
Display
pattern
Phase wire
system
Setting Menu 1
Setting Menu 2
Setting Menu 3
Cancel the
settings
Save the
settings
Instrument restart
or
Factory default
settings
*2
*1
Password protection
screen
Example of
Setting Mode
Example of Setting
Confirmation Mode
Active/Reactive
energy
measurement
Harmonics
display
Change
the
password
MODBUS
RTU
Address
MODBUS
RTU
Parity
MODBUS
RTU
Stop bit
MODBUS
RTU
Baud rate
Operating Mode
ON
Blink

17
3. How to Set up
3.1. Setting Flow
<Setting Procedure>
(1) Press the and buttons simultaneously for 2 seconds to enter the setting mode.
(2) Select the setting menu number with the or button.
(3) Press the button to determine the setting menu number.
(4) Set each setting item. (Refer to 3.2 to 3.9.)
(5) After completing all the settings, select End in the setting menu and then press the button.
(6) When the End screen appears, press the button again.
SET
＋
－
SET
SET
RESET
SET
non
Upper/Lower
limit alarm
value
Alarm
delay time
Alarm
reset
method
Backlight
blinking
for alarm
Motor starting
current
delay time
Upper/Lower
limit alarm
item
Model
display
Version
display
Backlight
brightness
Backlight
Auto off
/ON
Display
update
time
Operating
time
Threshold
Operating
time
Count target
Operating
time
Display
Setting Confirmation
Menu 9
Setting Menu 4
Setting Menu 5
Setting Menu 6
Setting Menu 7
Setting Menu 8
Setting Menu or Setting Confirmation Mode
Arrow
mark
Action
Button operation
Enter the setting mode from the operating
mode.
＋
Press simultaneously
Enter the setting confirmation mode from
the operating mode.
Press for 2 seconds.
Select the menu number to set up or End.
or
Press several times.
Enter the setting screen. Shift to the next
setting item.
Press
Return to the previous setting item.
Press
Omitted
Select a set value.
or
Press several times.
Shift to the End screen.
Press
Save the settings and then return to the
operating mode.
Press
Select CANCEL.
or
Press
Cancel the settings.
Press
Skip the current settings during setup.
Press for 1 second
Reset the settings to the factory default
settings.
＋
Press for 2 seconds
Enter the password protection screen from
the operating mode.
＋
Press for 2 seconds
DISPLAY
RESET
＋
－
SET
PHASE
RESET
SET
SET
SET
SET
＋
－
SET
SET
*1: If you enable password protection, you need
to input the password to enter the setting
mode from the operating mode.
*2: In the setting confirmation mode, the screen
returns to the operating mode.
*3: This is not displayed in the setting mode.
Test Mode
*3
PHASE
RESET
＋
－
IEC mode
settings
*3
Automatic
shift
non
Automatic
shift

18
3. How to Set up
3.1. Setting Flow
■Basic operation for settings
The following table shows a list of basic operations for settings.
Function
Operation
Note
Select a setting
Press or button
Fast-forward by pressing for 1 second or
more
Determine a setting
Press button
When the setting is determined, the
screen will shift to the next setting item.
Return to the previous setting
item
Press button
The setting before return is enabled.
Return to the setting menu
during setup
Press button for 1 second
＋
－
SET
DISPLAY
SET

19
3. How to Set up
Setting Menu 1: Basic Setup (Settings for Phase Wire System, Display Pattern,
VT/Direct Voltage, and CT Primary Current)
You will set the phase wire system, display pattern, VT/Direct voltage, CT primary current, and demand time
period.
In the operating mode, press the and buttons simultaneously for 2 seconds or more to enter the
following operation.
SET
RESET
SET
DISPLAY
Set the display pattern.
The following table shows measuring elements displayed on
each display pattern. The measuring elements displayed on P01
and P02 are the same. For P01, four elements are displayed in
one screen. For P02, each phase is displayed in one screen. For
details, refer to 6.1.
P00 is a special display pattern to freely set display items. For
details on the settings, refer to 3.13.
○：Displayable only by this setting
△：Other additional settings are necessary to display.
□：Select ‘P00’and set up the display order and position.
1) When set to 3-phase 4-wire system
Display Pattern
Current
Current N-phase
Current Demand
Current demand N-phase
Voltage
Active Power
Reactive Power
Apparent Power
Power Factor
Frequency
Active Energy (Imported)
Reactive Energy
Apparent Energy
Additional Screen
*Note
Active Energy (Imported/Exported)
Reactive Energy
Reactive Energy
Harmonic Current/Voltage
Operating Time
P01
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
△
△
P02
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
△
△
P00
□
□
□
□
□
□
□
□
□
□
□
□
□
△
△
△
△
△
Continued to the next page.
②Display Pattern
<When 1-phase 2-wire is set at
①Phase wire system.>
P02 is not selectable.
P01
P02
P00
Set the phase wire system
according to the measurement target circuit.
①Phase wire system
3P4: 3-phase 4-wire
3P3. 2CT: 3-phase 3-wire（2CT）
3P3. 3CT: 3-phase 3-wire（3CT）
1P3. 1N2: 1-phase 3-wire（1N2 display）
1P3. 1N3: 1-phase 3-wire（1N3 display）
1P2: 1-phase 2-wire
Note: The underlined
shows the default
setting.
(The same as below)
Select 1 in the setting menu.
*Refer to the right figure.
Setting Menu
SET
DISPLAY
SET
DISPLAY