Mitsubishi Electric MELSEC iQ-R, MELSEC RE81WH User Manual

MELSEC iQ-R Series Energy Measuring Module User’ s Manual

RE81WH

Details

（

）

Mark

Meaning of the mark

Danger

Indicates that incorrect handling by ignoring this mark may result in death or severe

damage.

Title

Document number

IB63D82A

RE81WH

INTRODUCTION

(Read these precautions before using this product.)

This manual contains important instructions for MELSEC iQ-R series RE81W H. Before using this module, please read this manual and the relevant manuals carefully and pay full attention to

safety to handle the product correctly. The precautions given in this manual are concerned with this module only. For the safety precautions of the

programmable controller system, refer to the “MELSEC iQ-R Module Configuration Manual”. Make sure that end users read this manual and then keep the manual in a safe place for future reference.

■Notations in this manual Use the following marks in this manual.

injury.

Caution Indicates that incorrect handling by ignoring this mark may result in injury or property

Supplement Indicates precautions to avoid malfunction, to work the module properly.

Depending on circumstances, failure to follow the precautions given under “ Caution” may lead to further serious consequences.

Please follow the precautions with full care because they are critical for personal and system safety. The “n” used in this manual (for example: Xn0, Yn0, Un\G0, etc.) indicates the Start I/O No. of this module.

■Relevant manuals

The following manuals are also related to this module. You can download each manuals from the following web site.

http://www.mitsubishielectric.com/fa/

MITSUBISHI Programmable Controller

MELSEC iQ-R Series Energy Measuring Module Model RE81WH User’s Manual (Hardware)

MELSEC iQ-R Module Configuration Manual SH-081262ENG

GX Works3 Operating Manual SH-081215ENG

IB63D83

1

Energy Measuring Module (RE81WH) x1

User’s Manual (Hardware) x1

RE81WH

■Checking package contents This following items for this device and included in package. Check that no items are missing.

This module is not compliant for dealing / proving electric energy specified in a measurement law. Please use the certified watt-hour meter to be used for deal and proof of electric energy measurement stipulated.

When considering to use this module for an atomic power, aerospace, medical fields or passenger use mobile, please contact to a sales representative beforehand.

2

RE81WH

FEATURES

(1) This Energy Measuring Module can measure various types of electric quantity just ONE module.

This Energy Measuring module can measure electric energy, reactive energy, current, voltage, electric power, power factor, frequency, harmonic current and harmonic voltage. Both consumption and regeneration of the electric energy can be measured.

(2) Extensive monitoring functions.

In addition to memorizing the maximum and minimum values, two types of alarm monitoring for upper and lower limit can be performed. Since the alarm setting is stored in the buffer memory, there is no need to complicated programs.

(3) It also can measure the electric energy for a certain period.

It can measure the electric energy for the duration of time for which the output device is on. This feature enables to acquire the electric energy needed during device operation or energy per tact.

(4) It can acquire waveform data of current and voltage.

It can acquire waveform data of the measured current and voltage. Thus, it is able to monitor / indicate using waveform data.

3

Revision data

Manual number *

Revision

Mar, 2018

IB63D82

First edition

Nov, 2018

IB63D82A

Modification, addition for the description of the version

Revision history

RE81WH

* Manual Number is provided at the bottom of the cover page.

■

related to RE81WH

Section 2.2, 6.4

■Modification for the errors and other description Section 4.2, 5.1, 5.5 and 8.1

This manual does not guarantee to protect or does not give permission to any industrial property and any related rights. Also, our company shall not be held any responsible for any issues related to industrial properties due to product usage described in this manual.

4

RE81WH

Section 1 SAFETY PRECAUTIONS

Places the ambient temperature exceeds the range 0 – 55ºC.

Places the relative humidity exceeds the range 5 – 95% or places with dewfall.

Places metal fragments or conductive substance are flying.

Dust, corrosive gas, saline and oil smoke exist.

Places in strong electromagnetic field or places large amounts of external noise exist.

Vibration and impact exceed the specifications.

RE81WH

Section 1 SAFETY PRECAUTIONS

1.1 Precautions for Operating Environment and Conditions

This module is premised on being used in pollution degree 2

degree, protect the module from the pollution on another device side to be incorporated. Overvoltage category of measuring circuit in this module is CAT III Do not use this product in the places listed below. Failure to follow the instruction may cause malfunctions and

a life decrease of product.

・・Places the average daily temperature exceeds +35℃ ・・Altitude exceeds 2000 m. ・・Places exposed to direct sunlight. ・・Places exposed to rain or water drop. ・・・Installed places excluding the control panel.

This module is the open type device, which are designed to be housed within another device for prevention of electric shock. House the module within the device such as the control panel before use. (Indoor use)

(Note 1) For the definition of the pollution degree and the over voltage category, refer to EN61010-1/2010.

1.2 Matters concerning the preparation before use

Use the module in the specified usage environment and conditions.

The setting of this module (phase wire system, primary voltage, primary current) is necessary before using it. *Refer to "5.2 Configurable sections (Un\G0 - Un\G99)" about each setting method.

(Note1)

environment. When used in higher pollution

(Note 1)

.

Danger

● Do not write data into “System Area” in the buffer memory of the intelligent function module.

Also, do not output (turn ON) the “use prohibited” signal in the output signal sent from the sequencer

CPU to the intelligent function module. Doing so may cause a malfunction to the sequencer system.

7

Section 1 SAFETY PRECAUTIONS

Use the programmable controller in an environment that meets the general specifications in the

RE81WH

1.3 Installation and Wiring Precautions

Make sure to use the module by following cautions of this section. Improper use may impair protection provided by this module.

Danger

● Shut off the external power supply for the module in all phases before installing or wiring. Failure to do

so may cause an electric shock or a damage of the module.

● Shut off the power supply for the module in all phases before installing or wiring. Failure to do so may

cause an electric shock or a damage, a fire on the module.

Caution

＜Precautions for Electric work＞

● Any person who is involved in the installation and the wiring of this Programmable Controller should be

fully competent to do the work.

●

“MELSEC iQ-R Module Configuration Manual”. Failure to do so may result in electric shock, fire, malfunction, or damage to or deterioration of the product.

● After mounting the module, ensure that the module fixing hook is securely applied on the base unit and

the module is surely mounted. Incorrect mounting may cause malfunctions, a failure or a drop of the

module. When using the Programmable Controller in an environment of frequent vibrations, fix the module with a screw.

● Tighten the screw within the specified torque range. Loose tightening can cause drop of the screw, short

circuit or malfunction. Over tightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction.

● Do not directly touch any conductive part of the module. Doing so can cause malfunctions or a failure of

the module.

● Take care not entering any foreign objects such as strips and wire pieces into the module. It may cause

a fire, a failure or a malfunction.

● In order to prevent the module from incoming foreign objects such as wire pieces during wiring work, a

foreign-object preventive label is placed on the module. While a wiring work is performed, keep the label on the module. Before operating the system, peel off the label for heat release. If the foreign-object

preventive label is not peeled off and the system is in use, residual heat inside the module may reduce the product life.

● After inserting the electric wire or a bar terminal, make sure that no missing insertion is existing. Missing

insertion may cause a malfunction, a fire, or an electric shock on the device.

● Ensure the wiring to the module properly after checking the rated voltage and current of the product and

the terminal pin assignment. If the input voltage exceeds the rated voltage or the wiring is improper, it may cause a fire or a breakage.

● The wires to be connected to the module shall be placed in a duct or fixed together by clamping. If the

electric wires are not placed in the duct or clamped together, loosen wires or their movement or careless stretch may cause a breakage of the module or wire or a malfunction due to poor contact of electric wires.

● For protection against noise, transmission lines and input lines shall not be placed close to or bound

together with the power lines and high voltage lines. Keep distance as below between them. (Except for

the terminal block.)

Condition Distance

High-voltage line 600V or less 300mm or more

Other high-voltage line 600mm or more

8

Section 1 SAFETY PRECAUTIONS

Cover the dangerous voltage part of the module.

RE81WH

Caution

＜Connection of terminal block＞

● In case using stranded wire, take measures so that the filament should not vary by using a bar terminal

or by processing the point twisted. Use the bar terminal appropriated for the size of electric wires. If inappropriate bar terminal is used, a wire breakage or a contact failure may occur, which may cause a

device malfunction, a failure, a burnout or a fire.

● Use appropriate size of electric wires. If inappropriate size of electric wire is used, it may cause a fire due

to generated heat.

＜Connection with the current sensor＞

● When using this module, make sure to use it in combination with the dedicated current sensor. Do not

exceed the rating of the module for input of the current sensor. A secondary side (5A) of transformer cannot directly input tot this module. For further details, refer the manuals for the current sensor to

maintain the functionalities and the accuracy of the module.

● The dedicated current sensor (excludes EMU2-CT5 and EMU-CT5-A) is used only for low voltage circuit.

It cannot be used for a high voltage circuit. EMU2-CT5 and EMU-CT5-A should be used with secondary side (5A) of transformer transfixed. If it is connected with a high voltage circuit by mistake, it may cause a burnout of the device and a fire. It is critically dangerous. For the allowance maximum voltage of current

sensor, refer to “10.4.1” in this manual.

● The dedicated current sensor has a polarity (directionality). Be careful about it when installing the module.

● If the wires connected to the module are strongly pulled off, it may cause a malfunction or a breakage to

the module or the wire.

＜Connection of ground＞

● Do not exceed the specified voltage when doing an insulation resistance test and a commercial frequency

withstand voltage test.

● To prevent persons with little knowledge about electric equipment from electric shock, panel must be

taken either following measure.

・ Lock the panel so that only those who get an education about electrical equipment and have

sufficient knowledge can unlock, or shut off power supply automatically upon opening the panel.

・

9

Section 1 SAFETY PRECAUTIONS

Places the ambient temperature exceeds the range -25 - +75 ºC.

Places the relative humidity exceeds the range 5 - 95% or places with dewfall.

Places with metal fragments or conductive substance are flying.

Dust, corrosive gas, saline and oil smoke exist.

RE81WH

1.4 Precautions for Start-up and Maintenance

Caution

● Use the product within the ratings specified in this manual. If it is used outside the ratings, it may cause

not only a malfunction or a failure but also a fire or a burnout.

● Before operating the product, check that active bare wire etc. does not exist around the product. If any

bare wire is found, stop the operation immediately, and take an appropriate action such as isolation protection.

● Do not disassemble or modify the module. It may cause a failure, a malfunction, an injury or a fire.

● Attaching and detaching the module must be performed after the power source is shut off for all outside

phases. If all phases are not shut off, it may cause an electric shock, a failure or a malfunction of the module.

● Do not touch powered wires. It may cause a malfunction.

● Tightening mounting screws and cleaning module must be performed after the power source is shut off

for all outside phases. If all phases are not shut off, it may cause an electric shock, a failure or a

malfunction of the module.

● Use a soft dry cloth to clean off dirt of the module surface.

● Do not let a chemical cloth remain on the surface for an extended period of time nor wipe the surface

with thinner or benzene.

● Check for the following items to use this module properly for a long time.

＜Daily maintenance＞ (1) No damage on this module.

(2) No abnormality with LED indicators. (3) No abnormal noise, smell or heat. ＜Periodical maintenance (Once every 6 months to 1 year) ＞ (4) No looseness with installation, wire connection to terminal blocks, and connector connection. (Check these items under the electric outage condition.)

1.5 Storage Precautions

To store the module, turn off the power and remove wires, and put it in a plastic bag.

For long-time storage, avoid the following places. Failure to follow the instruction may cause a failure and reduced life of the module.

・・Places the average daily temperature exceeds 35 ºC. ・・Vibration and impact exceed the specifications. ・・Places exposed to rain, water drops or direct sunlight. ・

1.6 Disposal Precautions

When disposing of this module, treat it as industrial waste.

1.7 Packaging materials and this manual

For reduction of environmental load, packaging materials are produced with cardboard, and this manual is

printed on recycled paper.

10

Section 2 SYSTEM CONFIGURATION

Attachable CPU Module

CPU Type

CPU Model

CPU Type

CPU Model

Programmable

R00CPU

Process CPU

R08PCPU

R01CPU

R16PCPU

R02CPU

R32PCPU

R120ENCPU

RE81WH

Section 2 SYSTEM CONFIGURATION

2.1 Precautions for system configuration

Attention to the following when configuring the system. ・Please install each modules so that the total number of occupied I/O points of these modules is equal to or less

than the number of I/O points of the CPU module used.

・Depending on the rated output current of the power supply used, mounting of the maximum number of

modules may not be possible. Consider the current consumption of each module to configure the system.

2.2 Applicable system

2.2.1 Applicable module (1) CPU module

The CPU module that can install RE81WH is shown below.

For the number of mountable modules, refer to the "MELSEC iQ-R Module Configuration Manual". RE81WH supports multiple CPU system.

controller CPU

R04CPU R120PCPU

R08CPU

R16CPU R16SFCPU

R32CPU R32SFCPU

R120CPU R120SFCPU

R04ENCPU C Controller module R12CCPU-V

R08ENCPU

R16ENCPU

R32ENCPU

Safety CPU R08SFCPU

11

Section 2 SYSTEM CONFIGURATION

Type

Model

R35B

R38B

R312B

R310B

R310B-HT

R38RB-HT

Extension

R65B

R68B

R612B

R610RB

R610B-HT

RE81WH

(2) Base unit

The Base unit that can install RE81WH is shown below. RE81WH can be installed to any I/O slot

*1 *2

.

*1 In case of Process CPU that operates in redundant mode, it can only be mounted with the extension

base unit. It is not allowed to be mounted with the main base unit.

*2 Limited within the range of I/O points for the CPU module.

Mountable Base unit

Main base

base

R68RB-HT

(3) Applicable software package

Software packages applicable to this module as follows.

Refer to the next page for the version of this module.

Product name Model name Remarks RE81WH version

GX Works3 Version1 SW1DND-GXW3-J

1.040S or later A

1.050C or later B

12

Section 2 SYSTEM CONFIGURATION

Version

A

-

Version：A

Version：B

2.2.2 How to confirm the version of RE81WH

Confirm the version of RE81WH as below: Refer to previous page for the software package corresponding to the each version.

○○○○○○

○○○B○○○○○

Version

Changes for version of RE81WH

RE81WH

(Shipment start date)

Before After

B

(Nov, 2018)

Profile registration needed*

Profile registration unneeded

* When using version A on GX Works3, Profile (for MELSEC iQ-R series Energy Measuring Module

(RE81WH) profile) registration is needed Refer to “GX Works3 operating manual” for registration of profile. You can download the profile from the web site. (http://www.mitsubishielectric.com/fa/)

When using version B, Profile registration unneeded.

13

Section 3 NAME AND FUNCTION OF EACH PART

(1) LED Operating state of this module is displayed.

(2) Current input terminals Connect with the secondary output of the dedicated current sensor connected to the current wire of the measuring circuit.

(3) Voltage input terminals Connect the voltage input wire of the measuring circuit.

(6) Strip gauge A gauge used for checking the length of stripped wire.

(5) Check hole Use this for continuity check to the terminal. Use it with a tester contact.

(4) Push button Push this button to insert a cable to the terminal or remove it.

symbol

3L

3-phase current input terminal (load side)

P1

P3

1-phase voltage input terminal

3-phase voltage input terminal

NC

Unused

Section 3 NAME AND FUNCTION OF EACH PART

3.1 Name of each part

RE81WH

Figure 3.1-1 Appearance of the module

Table 3.1-1 The names and operations of terminal block

Terminal

1k

1L

3k

P2

1-phase current input terminal (power source side)

1-phase current input terminal (load side)

3-phase current input terminal (power source side)

2-phase voltage input terminal

Name of terminal

14

Section 3 NAME AND FUNCTION OF EACH PART

Internal power supply is off, error is in

No measuring electric energy (no

In the case of alarm 1 reset method =

OFF: Alarm 2 not occurring

OFF: Normal operation

Displays the status of

measurement (regeneration) of this module.

ON: Measuring electric energy (regeneration)

Displays the status of measurement (regeneration)

ON: Measuring 1-phase electric energy

Displays the status of

measurement (regeneration)

phase electric energy

3.2 Indication and function of LEDs

The following describes names and functions of LEDs.

Table 3.2-1 Names and functions of LEDs

Name Color Role Indicator condition

RUN

LED

MEA.

LED

ALM1

LED

ALM2

LED

Displays the operation status

Green

of this module.

Displays measuring status of

Green

*2

this module.

Displays alarm 1 occurrence status.

Red

Displays alarm 2 occurrence status.

Red

ON: Normal operation

OFF:

occurrence in hardware. *1

ON: Measuring electric energy (consumption or

regeneration)

OFF:

measurement)

Flashing: Alarm 1 occurring ON: Alarm 1 occurring → Not occurring

(

Self-retention) OFF: Alarm 1 not occurring

Flashing: Alarm 2 occurring ON: Alarm 2 occurring → Not occurring

(In the case of alarm 2 reset method = Self-

retention)

RE81WH

ERR

LED

R

LED

1

LED

3

LED

Displays error and the status

Red

Green

*2

Green

*2

Green

*2

of this module.

at side 1 of this module.

at side 3 of this module.

Flashing: Error in out of range of setting values

*1

ON: Error in occurrence in hardware

OFF: Other than the above

(regeneration)

OFF: Other than the above

ON: Measuring 3-

(regeneration) OFF: Other than the above

*1: For details, refer to “8.1 List of error codes” in this manual. *2: When calculated value is low, “MEA”LED, “R”LED, “1”LED and “3”LED are looked like flashing.

Comparing to the last value per measuring cycle, LEDs light while calculating, then LEDs light off upon no changes.

Since measuring cycle is shortest as 10ms, short period setting seems like flashing.

*1

15

Section 3 NAME AND FUNCTION OF EACH PART

(consumption, regeneration), reactive energy

), harmonic current, current harmonic

and sequentially stores the records into a buffer memory.

The electric energy only for a period of time when a

certain output signal is ON will be stored in the buffer

power factor, each maximum/minimum values and date/time of occurrence are stored.

Upper/lower limit alarm

the specified input signal is turned on.

storage of the

Set the integrated value (electric energy (consumption, regeneration), reactive energy (consumption lag)) to an

circuit into the buffer memory.

3.3 List of functions

Functions of RE81WH are provided in “Table 3.3-1 List of Functions”.

Table 3.3-1 List of Functions

No. Function Descriptions

It measures current, current demand, voltage, electric

power, electric power demand, Reactive power, apparent power, power factor, frequency, effective energy

1 Measurement

(consumption lag distortion, harmonic voltage, voltage harmonic distortion,

RE81WH

Reference

section

3.4.1

2 Periodic electric energy

3 Hold max./min. values

4

monitoring

5 Test

6 Integrated value set

7 Output of waveform data

memory.

Periodic energy 1 and 2 can be measured independently.

For current demand, voltage, electric power demand, and

Among current demand, voltage, electric power demand, and power factor, you can select two measuring items for which their upper/lower limit can be monitored.

If it exceeds the upper limit or goes below the lower limit,

Parameter setting enables pseudospecified value into the buffer memory, even with non-

existence of input from voltage and current (sensor). Using this module, you can create a sequence, etc.

arbitrary value. It is used to clear integrated value.

Stores waveform data of current / voltage of the measured

3.4.2

3.4.3

3.4.4

3.4.5

3.4.6

3.4.7

16

Section 3 NAME AND FUNCTION OF EACH PART

Measured items

Details

period of current demand time is

Date of max. value occurrence

Date of min. value occurrence

Phase 1 harmonic current (n th)

Phase 1 harmonic current (Total)

Phase 3 harmonic current (n th) *1

Phase 3 harmonic current (Total) *1

Phase 1 current harmonic distortion (n th)

Phase 1 current harmonic distortion (Total)

Phase 3 current harmonic distortion (n th) *1

Phase 3 current harmonic distortion (Total) *1

RE81WH

3.4 Functions in detail

3.4.1 Measuring function (1) Measured items

Measured items and measured ranges are described as follows. Each measured item is stored in the buffer memory at every measuring cycle.

Refer to “5.2.12” for measuring cycle, and refer to “4.2.1(7)” for measuring cycle of harmonic current and harmonic voltage.

Table 3.4.1-1 List of Measured items (1/2)

Current Phase 1 current

Phase 2 current*1

Phase 3 current*1

Average current

Current demand * The average of fluctuation for the set

indicated.

Phase 1 current demand

Phase 2 current demand *1

Phase 3 current demand *1

Max. value

Min. value

Harmonic current *2

*1: If phase wire system is set to single-phase 2-wire, measurement will not be taken. *2: The order of harmonic as follows.

RMS: 1st, 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th Distortion: 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th

17

Section 3 NAME AND FUNCTION OF EACH PART

Max. value

Min. value

Date/time of max. value occurrence

Date/time of min. value occurrence

1-2 harmonic voltage (n th)

1-2 harmonic voltage (Total)

2-3 harmonic voltage (n th) *1

2-3 harmonic voltage (Total) *1

1-2 voltage harmonic distortion (n th)

1-2 voltage harmonic distortion (Total)

2-3 voltage harmonic distortion (n th) *1

Apparent power

Max. value

Min. value

Date/time of max. value occurrence

Date/time of min. value occurrence

Frequency

Present value

Electric energy (consumption)

Electric energy (regeneration)

Reactive energy

Reactive energy (consumption lag)

Periodic electric energy

Periodic electric energy 1

Periodic electric energy 2

Table 3.4.1-1 List of Measured items (2/2)

Measured items

Details

Voltage 1-2 voltage (voltage V12)

2-3 voltage*1 (voltage V23)

3-1 voltage*1 (voltage V31)

Average voltage

Harmonic voltage *2

RE81WH

2-3 voltage harmonic distortion (Total) *1

Electric power Present value

Electric power demand

* The average of fluctuation for the set

period of electric power demand time

is indicated.

Reactive power Reactive power

Power factor Present value

Electric energy

Present value

Max. value

Min. value

Date/time of max. value occurrence

Date/time of min. value occurrence

*1: If phase wire system is set to single-phase 2-wire, measurement will not be taken.

*2: The order of harmonic as follows.

RMS: 1st, 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th Distortion: 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th

18

Section 3 NAME AND FUNCTION OF EACH PART

(The highest value after the max./min. value was reset.)

Highest value among 1-phase current demand, 2-phase current

(The highest value after the max./min. value was reset.)

Minimum

Minimum value of 1-phase current demand (The lowest value after the max./min. value was reset.)

(The lowest value after the max./min. value was reset.)

phase current

(The lowest value after the max./min. value was reset.)

Maximum

Highest value of the 1 - 2 line voltage

(The highest value after the max./min. value was reset.)

(The lowest value after the max./min. value was reset.)

Lowest value of either the 1 - 2 line voltage or the 2 - 3 line voltage

(The lowest value after the max./min. value was reset.)

(2) Total, maximum, and minimum values

The following describes how to calculate the maximum, minimum, and total values.

Table 3.4.1-2 How to calculate the maximum, minimum and average values

Item Phase wire system Formula

Average

current

Average

voltage

Maximum current

demand

single-phase 2-wire Average current = 1-phase current

single-phase 3-wire

three-phase 3-wire

single-phase 2-wire Average voltage = voltage V12

single-phase 3-wire

three-phase 3-wire

single-phase 2-wire

single-phase 3-wire

Average current = (1-phase current + 3-phase current) / 2

Average voltage = (voltage V12 + voltage V23) / 2

Maximum value of 1-phase current demand

Highest value of either 1-phase current demand or 3-phase current demand

RE81WH

current demand

voltage

Minimum voltage

three-phase 3-wire

single-phase 2-wire

single-phase 3-wire

three-phase 3-wire

single-phase 2-wire

single-phase 3-wire

three-phase 3-wire

single-phase 2-wire

single-phase 3-wire

three-phase 3-wire

demand, or 3-phase current demand

Lowest value of either 1-phase current demand or 3-phase current demand

Lowest value among 1-phase current demand, 2demand, or 3-phase current demand

Highest value of either the 1 - 2 line voltage or the 2 - 3 line voltage

Highest value among the 1 - 2 line voltage, the 2 - 3 line voltage, or

3 - 1 line voltage (The highest value after the max./min. value was reset.)

Lowest value of the 1 - 2 line voltage

(The lowest value after the max./min. value was reset.)

Lowest value among the 1 - 2 line voltage, the 2 - 3 line voltage, or 3 - 1 line voltage

19

Section 3 NAME AND FUNCTION OF EACH PART

decimal point

1 digit after the

decimal point

400 A ≤ PA < 4000 A

-3

Integer

1 A

4000 A ≤ PA

-3

x10

10 A

PV*1

factor

1 digit after the

3300 V ≤ PV

-3

x10

10 V

factor

decimal point

1 digit after the

decimal point

IV

1200 kW ≤ W < 12000 kW

-3

Integer

1 kW

V

12000 kW ≤ W < 120000 kW

-3

x10

10 kW

RE81WH

(3) Resolution of measured data

Resolution of measured data according to the rating (phase wire system, primary voltage setting, and primary current setting) is described as follows.

(a) Current, current demand

Primary current setting

PA*1

PA < 40 A -3

Multiplying

factor

Resolution*2

2 digits after the

0.01 A

40 A ≤ PA < 400 A -3

0.1 A

*1: Case of setting value of the primary current (Un\G2) is “0”, the primary current (PA) is value of

primary current of CT (Un\G7). In other cases, the primary current (PA) is the value of primary current (Un\G2).

*2: Digits lower than the resolution are fixed to 0.

(b) Voltage

Primary voltage setting

PV < 330 V -3

Multiplying

Resolution*2

decimal point

0.1 V

330 V ≤ PV < 3300 V -3 Integer 1 V

*1: Case of setting value of the primary voltage (Un\G1) is “0”, the primary voltage (PV) is value of

primary voltage of VT (Un\G5). In other cases, the primary voltage (PV) is the value of primary voltage (Un\G1).

*2: Digits lower than the resolution are fixed to 0.

(c) Electric power, electric power demand, Reactive power, Apparent power

Full load power W*1

Multiplying

Resolution

*2 *3

I W < 12 kW -3

II 12 kW ≤ W < 120 kW -3

III 120 kW ≤ W < 1200 kW -3

*1: Full load power (W) can be calculated by the following formula.

For calculating full load power W, refer to “Table 3.4.1-3 How to calculate full load power”. Full load power W(kW) = α × Primary voltage (V) × Primary current (A) / 1000 Case of single-phase 2-wire: α = 1 Case of single-phase 3-wire: α = 2 Case of three-phase 3-wire: α = 3

*2: Digits lower than the resolution are fixed to 0. *3: The module is kvar for reactive power and kVA for apparent power.

3 digits after the

decimal point

2 digits after the

0.001 kW

0.01 kW

0.1 kW

20

Section 3 NAME AND FUNCTION OF EACH PART

decimal point

factor

decimal point

factor

5 digits after the

decimal point

3 digits after the

decimal point

(d) Power factor

Power factor

All setting ranges -3

Multiplying

factor

Resolution*1

1 digit after the

*1: Digits lower than the resolution are fixed to 0.

(e) Frequency

Frequency

Multiplying

Resolution*1

RE81WH

0.1 %

All setting ranges -3

1 digit after the

0.1 Hz

*1: Digits lower than the resolution are fixed to 0.

(f) Electric energy, reactive energy, periodic electric energy

Full load power W*1

Multiplying

I W < 12 kW -5

II 12 kW ≤ W < 120 kW -4

III 120 kW ≤ W < 1200 kW -3

IV 1200 kW ≤ W < 12000 kW -2

V 12000 kW ≤ W < 120000 kW -1

Resolution

decimal point

4 digits after the

2 digits after the

decimal point

1 digit after the

*2 *3

0.00001 kWh

0.0001 kWh

0.001 kWh

0.01 kWh

0.1 kWh

*1: Refer to “(c) *1” about how to calculate Full load power (W).

For calculating full load power W, refer to “Table 3.4.1-3 How to calculate full load power”.

*2: Because the higher resolution than a typical watt-hour meter, the minimum digit values will change

more than 2 at once update in accordance with setting value of input voltage, primary current,

primary voltage of VT, secondary voltage of VT, primary current of CT and the condition of load.

*3: In the case of reactive energy, the unit will be kvarh.

21

Section 3 NAME AND FUNCTION OF EACH PART

110 220 440 690 1100 2200 3300 6600 5 6

7.5 8

10 12 15 20 25 30 40 50 60 75

80 100 120 150 200 250 300 400 500 600 750 800

1000 1200 1500 1600 2000 2500 3000 4000 5000 6000

Primary current [A]

Primary voltage [V]

Ⅰ

Ⅱ

Ⅴ

W < 12 kW

12 kW ≤ W < 120 kW

120 kW ≤ W < 1200 kW

1200 kW ≤ W < 12000 kW

12000 kW ≤ W

< 120000 kW

Table 3.4.1-3 How to calculate full load power

Single-phase 2 wire system

RE81WH

22

Primary voltage [V]

110 5 6

7.5 8

10 12 15 20 25 30 40 50 60 75

80 100 120 150 200 250 300 400 500 600 750 800

1000 1200 1500 1600 2000 2500 3000 4000 5000 6000

Primary current [A]

Ⅰ

W < 12 kW

Ⅱ

12 kW ≤ W < 120 kW

120 kW ≤ W < 1200 kW

1200 kW ≤ W < 12000 kW

Section 3 NAME AND FUNCTION OF EACH PART

Single-phase 3-wire system

RE81WH

23

Section 3 NAME AND FUNCTION OF EACH PART

110 220 440 690 1100 2200 3300 6600 5 6

7.5 8

10 12 15 20 25 30 40 50 60 75

80 100 120 150 200 250 300 400 500 600 750 800

1000 1200 1500 1600 2000 2500 3000 4000 5000 6000

Primary current [A]

Primary voltage [V]

Ⅰ

W < 12 kW

Ⅱ

12 kW ≤ W < 120 kW

120 kW ≤ W < 1200 kW

1200 kW ≤ W < 12000 kW

Ⅴ

12000 kW ≤ W

< 120000 kW

Three-phase 3-wire system

RE81WH

24

Section 3 NAME AND FUNCTION OF EACH PART

Measuring item

Behavior of the module

Current

When the input current is less than 0.4% of the rating current, it becomes 0A.

is 0A, current demand may not be 0A.

Indicate “0 A” if 1-2 line voltage is 0V.

Frequency condition:

Indicate “0 %” at each phase if harmonic current (Harmonic current (1st)) is 0A.

Indicate “0 %” if 1-2 line voltage is 0V.

When it is less than 44.5Hz, it becomes 0V.

Apparent power

* The unit is kvar for reactive power and kVA for apparent power.

Electric power

Electric power demand is obtained by electric power moving average. Therefore, are 0V), it becomes 100%

When it is less than 44.5Hz, it is fixed to 44.5Hz.

RE81WH

(4) Restrictions for measuring data

・Measurement cannot be performed immediately after the power loading to the sequencer system

(Module ready signal is under the OFF condition). After checking that Module ready (Xn0) is ON, obtain measuring data.

・Measurement cannot be performed immediately after operating conditions are set up to the module. After

checking that Operating condition setting completion flag (Xn9) becomes ON, obtain measuring data.

・Behaviors during operation are as follows.

Current demand Current demand is obtained by current moving average. Therefore, even if the current

Harmonic current Current condition:

Indicate “0 A” at each phase if current is 0A.

Voltage condition:

Indicate “0 A” at all phase if frequency is under 44.5Hz.

Current harmonic

distortion

Harmonic current condition:

Voltage condition:

Frequency condition:

Indicate “0 %” at all phase if frequency is under 44.5Hz.

Voltage Indicate “0 V” if RMS value is under 11V. (*1)

Harmonic voltage Voltage condition:

Indicate “0 V” at each inter-wire if voltage is 0V.

Indicate “0 V” if 1-2 line voltage is 0V.

Frequency condition:

Voltage harmonic

distortion

Electric power, Reactive power,

demand

Electric energy The electric energy is measured with a load that is about 0.4% or more of all load

Power factor When current is 0A (at all phases are 0A) or when voltage is 0V (all in-between wires

Voltage condition:

Indicate “0 %” at each inter-wire if voltage is 0V. Indicate “0 %” if 1-2 line voltage is 0V.

Frequency condition:

When current is 0A (at all phases are 0A) or when voltage is 0V (all in-between wires are 0V), it becomes 0kW.

even if electric power is 0kW, electric power demand may not be 0kW.

power. Even if the indicated value is “0”, measurement value will increase.

Frequency Voltage condition

Indicate “0 Hz” if 1-2 line voltage is 0 V.

Frequency condition

*1: In 1-phase three-wire system, indicate “0 V” if RMS value is under 22V.

25

Section 3 NAME AND FUNCTION OF EACH PART

Periodic

RE81WH

3.4.2 Measuring function for periodic electric energy This function is to measure electric energy (consumption) for a certain period, and stores it into the buffer memory. It can be used to measure electric energy for a certain tact or energy (standby power) when the facility or equipment is not in operation.

(1) Overview

(a) It can measure two periodic electric energy at maximum (periodic electric energy 1, periodic electric

energy 2). Each of these can be measured independently.

(b) While the time when Periodic electric energy 1 measurement flag (Yn1)/ Periodic electric energy 2

measurement flag (Yn2) is ON, periodic electric energy can be measured.

(c) Since Periodic electric energy is stored in the nonvolatile memory, it can be retained even when a power

source reset.

(d) I/O signals and buffer memory corresponding to each of periodic electric energy 1 and 2 are shown

below.

Periodic

electric energy

1

Periodic

electric energy

2

Supplement

Quantity survey of periodic electric energy is performed every measuring cycle. Therefore, if the time for turning ON Periodic electric energy 1 measurement flag (Yn1) and Periodic electric energy

2 measurement flag (Yn2) is set to measuring cycle or less, measurement may not be performed. For the measuring cycle, refer to “5.2.12”.

Buffer memory

(Double words)

Un\G114,115

Un\G116,117

electric

energy

measurement

flag

Yn1 Xn1 Yn3 Xn3

Yn2 Xn2 Yn4 Xn4

Periodic electric

energy data

completion flag

Periodic

electric

energy reset

request

Periodic electric

completion flag

energy reset

26

Section 3 NAME AND FUNCTION OF EACH PART

Period ic ele ctric en ergy 1

OFF

Period ic ele ctric en ergy 1 reset reques t (Yn3)

Period ic ele ctric en ergy 1 reset com pletion flag (Xn3)

(i) (ii)

ON

OFF

(iii)

Period ic ele ctric en ergy 1 me asuremen t flag (Yn1)

Period ic ele ctric en ergy 1 data co mple tio n flag (Xn1)

ON

OFF

ON

OFF

Period ic ele ctric en ergy １

ON

OFF

(i) (ii)

(iii) (iv) (v)

RE81WH

(2) Basic procedure

(a) Measuring periodic electric energy

(i) Check that Periodic electric energy measurement flag (Yn1/Yn2) i s O F F. (ii) Check periodic electric energy (Un\G114, 115/Un\G116, 11 7). (iii) When starting measurement, set Periodic electric energy measurement flag (Yn1/Yn2) to ON.

This module starts measuring specified periodic electric energy, and Periodic electric energy data completion flag (Xn1/Xn2) will be turned OFF.

(iv) When stopping measurement, set Periodic electric energy measurement flag (Yn1/Yn2) to OFF.

This module stops measuring the specified periodic electric energy, and Periodic electric energy data completion flag (Xn1/Xn2) will be turned ON.

(v) Check that Periodic electric energy data completion flag (Xn1/Xn2) becomes ON, and obtain the

value of periodic electric energy.

Figure 3.4.2-1 Basic procedure of measuring the periodic electric energy 1

(b) Resetting periodic electric power

(i) Check that Periodic electric energy measurement flag (Yn1/Yn2) is OFF and Periodic electric energy

reset request (Yn3/Yn4) is OFF.

(ii) Set Periodic electric energy reset request (Yn3/Yn4) to ON. The specified periodic electric energy is

reset to 0 kWh, and Periodic electric energy reset completion flag (Xn3/Xn4) will be turned to ON.

(iii) Check the Periodic electric energy reset completion flag (Xn3/Xn4) has become ON, then set Periodic

electric energy reset request (Yn3/Yn4) to OFF. Periodic electric energy reset completion flag (Xn3/Xn4) will be turned OFF.

Figure 3.4.2-2 How to reset the periodic electric energy 1

27

Section 3 NAME AND FUNCTION OF EACH PART

Periodic ele ctric energy 1 me asure ment f lag (Yn1)

Periodic ele ctric energy 1 dat a com ple tion flag (Xn1)

ON

OFF

Periodic ele ctric energy 1

ON

Period ic ele ctric energy 1 me asure ment f lag (Yn1)

Period ic ele ctric energy 1 data comple tio n flag (Xn1)

ON

OFF

ON

OFF

Period ic ele ctric energy 1

ON

OFF

Period ic ele ctric energy 1 res et request (Yn3)

Period ic ele ctric energy 1 res et com pletion fla g (Xn3)

(i) (ii)

ON

OFF

(iii) (iv) (v) (vi)

RE81WH

(3) Example of use

(a) Procedure for continuously measuring periodic electric energy

If you turn Periodic electric energy measurement flag (Yn1/Yn2) to ON only while measurement is

needed, this module accumulates the power starting at the previously measured amount. Usage procedure is the same as (a) in (2).

An example is shown below.

Figure 3.4.2-3 Example of continuous measurement of periodic electric energy 1

(b) Procedure for measuring periodic electric energy at every reset

By the following usage procedure, this module accumulates electric energy every time after resetting

periodic electric energy.

(i) Check that Periodic electric energy measurement flag (Yn1/Yn2) is OFF and Periodic electric energy

reset request (Yn3/Yn4) is OFF.

(ii) Set Periodic electric energy reset request (Yn3/Yn4) to ON.

The specified periodic electric energy is reset to 0 kWh, and Periodic electric energy reset completion flag (Xn3/Xn4) will be turned ON.

(iii) Check that Periodic electric energy reset completion flag (Xn3/Xn4) has become ON, and then set

Periodic electric energy reset request (Yn3/Yn4) to OFF. Periodic electric energy reset completion flag (Xn3/Xn4) will be turned OFF.

(iv) When starting measurement, set Periodic electric energy measurement flag (Yn1/Yn2) to ON.

This module starts measuring the specified periodic electric energy, and Periodic electric energy data completion flag (Xn1/Xn2) will be turned OFF.

(v) When stopping measurement, set Periodic electric energy measurement flag (Yn1/Yn2) to OFF.

This module stops measuring the specified periodic electric energy, and Periodic electric energy data completion flag (Xn1/Xn2) will be turned ON.

(vi) Check that Periodic electric energy data completion flag (Xn1/Xn2) becomes ON, and obtain the

value of periodic electric energy.

Figure 3.4.2-4 Example of measurement of periodic electric energy 1 every time after resetting

28

Section 3 NAME AND FUNCTION OF EACH PART

Setting value

Description

11

Current demand

12

Voltage

Max./min. value s clea r re qu es t (YnD)

Max./min. value s clea r completion flag (XnD)

ON

OFF

RE81WH

3.4.3 Max./min. value hold function It memorizes the max./min. value for each measuring item, and retains them until the max./min. value clear are performed.

(1) Max./min. value memory

It memorizes the max. and min. values, and the time of occurrence (year/month/day/hour/minute/second/day of the week/millisecond) values for the following measuring item. * The max. and min. values and the date of occurrence are stored in the nonvolatile memory, so that these

values can be retained even when a power source reset.

・Current demand ・Voltage ・Electric power demand ・Power factor

(2) How to clear the max. and min. values

You can use the I/O signal to clear the max. and min. values that specified by max./min. values clear target (Un\G56). The max. and min. values immediately after the clear becomes the present values and the date of

occurrence will be the present date and time. The following describes how to clear the max. and min. values.

(a) Check that Max./min. values clear request (YnD) is O F F. (b) Set the max./min. values clear target(Un\G56).

The setting range is shown below.

13 Electric power demand

14 Power factor

19 All of the above

Others Do not clear

(c) Set Max./min. values clear request (YnD) to ON.

This module clears the max./min. values set by (b), and the date of occurrence, and set Max./min. values clear completion flag (XnD) to ON.

(d) Check that Max./min. values clear completion flag (XnD) is ON, and then set Max./min. values clear

request (YnD) t o O F F. Max./min. values clear completion flag (XnD) will be turned OFF.

Figure 3.4.3-1 Procedure for clearing max./min. value

29

Section 3 NAME AND FUNCTION OF EACH PART

(Alarm 1 / Alarm 2)

8: Power factor lower limit

For respective alarm 1 and

Alarm monitoring

-2147483648 – 2147483647

Power factor :×10-3 %

The value to be monitored for the alarm. Set the value according to the unit of the

(Double words)

Alarm reset method

0: Self-retention

Set whether or not the alarm-

the upper limit alarm value or

Only when the state that it

exceeds the upper limit alarm monitoring value or it goes

below the lower limit alarm monitoring value continues for

it is considered as an alarm occurrence.

RE81WH

3.4.4 Upper/lower limit alarm monitoring function You can set an upper and lower limit alarm for maximum two points and implement a monitoring function for them. During the alarm monitoring, you can check the alarm occurrence by the input signal.

(1) Setting items of the upper/lower limit alarm monitoring

Setting items and setting range for the alarm monitoring are described below.

Items set in the

buffer memory

Setting range Description

Alarm monitoring

factor

(Un\G11 / Un\G21)

value

(Un\G12,13

/ Un\G22,23)

(Un\G14 / Un\G24)

Alarm delay time

(Un\G15 / Un\G25)

0: No monitoring 1: Current demand upper limit 2: Current demand lower limit

3: Voltage upper limit 4: Voltage lower limit

5: Power demand upper limit 6: Power demand lower limit

7: Power factor upper limit

[Unit] Current demand :×10

Voltage :×10 Electric Power demand :×10

1: Self-reset

0 – 300

[Unit] second

-3

A

-3

V

-3

kW

alarm 2, set the monitoring item either the upper / lower limit or

measuring factor.

measuring item that is set as an alarm monitoring factor.

occurrence condition should be retained if the value goes below

goes over the lower limit alarm value after the upper/lower limit

alarm occurred.

* Each item of the alarm monitoring is stored in the nonvolatile memory, so that values can be retained even

when a power source reset.

the period of alarm delay time,

30

Section 3 NAME AND FUNCTION OF EACH PART

ON

OFF

ON

OFF

Operating condition setting completion flag (Xn9)

Operating condition setting request (Yn9)

Alar m 1 flag (XnA )

OFF

ON

Ala rm

del ay t ime

ON

Alar m 1 res et r equest (YnA)

OFF

ALM1 LED

OFF Flashing OFFON

(i)

(ii)

(iii) (iv)

Upper limit

RE81WH

(2) How to set the upper/lower limit alarm monitoring

Setting procedures are as following.

(a) Check that Operating condition setting request (Yn9) is OFF. (b) Set the alarm item in the buffer memory (Un\G11 / Un \G21), alarm value (Un\G12, 13 / Un\G22, 23),

alarm reset method (Un\G14 / Un\G24), and alarm delay time (Un\G15 / Un\G25).

(c) Set Operating condition setting request (Yn9) to ON.

Operation starts at each set value, and then, Operating condition setting completion flag (Xn9) is turned ON.

(d) Check that Operating condition setting completion flag (Xn9) becomes ON, and then set Operating

condition setting request (Yn9) to OFF. Operating condition setting completion flag (Xn9) will be turned OFF.

Figure 3.4.4-1 Time chart of alarm monitoring setting

(3) Behavior of the upper/lower limit alarm

(a) When the alarm reset method is in the “0: Self-retention” setting (example of an upper limit monitoring

at alarm 1)

(i) If the measured value that was set with the alarm 1 monitoring item exceeds the upper limit and the

situation continues and remains for the alarm 1 delay time, Alarm 1 flag (XnA) will be turned ON. At the same time, ALM1 LED flashes.

(ii) Even if the measured value goes below the upper limit, Alarm 1 flag (XnA) retains an ON status (Self-

retention). During the self-retention, ALM1 LED is turned on.

(iii) By turning Alarm 1 reset request (YnA) to ON, Alarm 1 flag (XnA) will be turned OFF.

At this time, ALM1 LED is turned off.

(iv) Check that Alarm 1 flag (XnA) becomes OFF, and then set Alarm 1 reset request (YnA) to OFF.

Figure 3.4.4-2 Time chart of the upper/lower limit alarm (alarm reset method = “Self-retention”)

31

Section 3 NAME AND FUNCTION OF EACH PART

Alar m 1 flag (XnA )

ON

Ala rm

del ay t ime

Ala rm

del ay t ime

ALM1 LED

OFF Flashing OFF

(i)

(ii)

(iii)

Upper limit

Alar m 2 flag (XnB )

OFF

ON

Ala rm

del ay t ime

Ala rm

del ay t ime

ALM2 LED

OFF Flashing OFF

(i)

(ii)

(iii)

Lower limit

RE81WH

(b) When the alarm reset method is in the “1: Self-reset” setting (example of an upper limit monitoring at

alarm 1)

(i) If the measured value that was set with the alarm 1 monitoring factor exceeds the upper limit and the

situation continues and remains for the alarm 1 delay time, Alarm 1 flag (XnA) will be turned ON. At the same time, ALM1 LED flashes.

(ii) If the measured value goes below the upper limit, Alarm 1 flag (XnA) will be turned OFF. At this time,

ALM1 LED is turned off.

(iii) When the measured value that was set with the alarm 1 monitoring item goes below the upper limit

within the alarm 1 delay time even though the measured value exceeds the upper limit, the alarm 1 flag (XnA) will remain in OFF status.

Figure 3.4.4-3 Time chart of the upper/lower limit alarm (alarm reset method = “Self-reset”)

(c) When the alarm reset method is in the “Self-reset” setting (Example of a lower limit monitoring at alarm

2)

(i) If the measured value that was set with the alarm 2 monitoring factor goes below the lower limit and

the situation continues and remains for the alarm 2 delay time, Alarm 2 flag (XnB) will turn ON. At the same time, ALM2 LED flashes.

(ii) If the measured value exceeds the lower limit, Alarm 2 flag (XnB) will turn OFF. At this time, ALM2

LED is turned off.

(iii) When the measured value that was set with the alarm 2 monitoring item exceeds the lower limit within

the alarm 2 delay time even though the measured value goes below the lower limit, the Alarm 2 flag (XnB) will remain in OFF status.

Figure 3.4.4-4 Time chart of the upper/lower limit alarm (alarm reset method = “Self-reset”)

32

Section 3 NAME AND FUNCTION OF EACH PART

Alar m 1 flag (XnA )

ON

OFF

Alar m 1 res et request (YnA)

ALM1 LED

OFF Flashing OFF

(ii) (iii) (iv)(i) (v)

ON

Upper limit

Flashing

Ala rm

del ay t ime

Ala rm

del ay t ime

RE81WH

(4) How to reset Alarm flag

When Alarm flag is ON during the alarm occurrence or the self-retention (in the case of the alarm reset method = “Self-retention“), Alarm flag can be reset (turned OFF) using Alarm reset request.

(a) How to reset Alarm flag during alarm occurrence (example of the upper limit alarm monitoring with the

alarm 1)

(i) If the measured value that was set with the alarm 1 monitoring factor exceeds the upper limit, Alarm

1 flag (XnA) will turn ON. At the same time, ALM1 LED flashes.

(ii) By turning Alarm 1 reset request (YnA) to ON, Alarm 1 flag (XnA) will turn OFF.

At this time, ALM1 LED will remain flashing (because ALM1 LED is synchronized with the alarm

status, it will not turn off). (iii) Check that Alarm 1 flag (XnA) becomes OFF, and then set Alarm 1 reset request (YnA) to OFF. (iv) If the measured value goes below the upper limit, ALM1 LED will turn off. (v) After that, if the measured value exceeds the upper limit, Alarm 1 flag (XnA) will turn ON again. At

the same time, ALM1 LED flashes.

(b) How to reset Alarm flag during self-retention (only in the case the alarm reset method = “Self-retention”)

Refer to the procedure described in (3)(a).

(5) Precautions during the alarm monitoring

When current demand time and electric power demand time are set to anytime other than 0 second, current demand value and electric power demand value become lower than the actual values (closer to 0)

immediately after the power source ON and the CPU reset. When current demand value and electric power demand value are being monitored for their lower limit alarm,

the alarm occurrence flag may turn ON. Thus, to avoid this, follow the procedure below.

(a) Set the alarm monitoring target to “no monitoring” immediately after the power source ON and the CPU

reset.

(b) After passing for a 3-times longer period than the demand time, set the alarm monitoring target again,

and start the alarm monitoring.

Figure 3.4.4-5 Procedure for resetting Alarm 1 flag (alarm reset method = “Self-reset”)

33

Section 3 NAME AND FUNCTION OF EACH PART

operation before running the sequence program.

RE81WH

3.4.5 Tes t function This function is to output pseudo-fixed value to a buffer memory for debugging sequence program. The value can be output to the buffer memory without input of voltage and current.

Caution

● Because fixed-value is output to the buffer memory, separate the actual device to avoid unexpected

(1) How to use the test function

Using the parameter setting, you can start the test mode to output the fixed value.

Refer to “6.4.2” for procedure of the parameter setting, refer to “6.4.5” for start or end the test mode.

(2) Content of pseudo-output

For the value to be output to the buffer memory, refer to Table 5.1-1 to 5.1-3 in “5.1 Buffer memory

assignment”.

(3) LED display when using the test function

All LED ON.

(4) I/O signals when using the test function

Unit READY (Xn0) only ON. Other input and output signals are all OFF.

34

Section 3 NAME AND FUNCTION OF EACH PART

1

Electric energy (consumption)

2

Electric energy (regeneration)

3

Reactive energy (consumption lag)

積算値

セット

要求(Y3)

積算値セット完了フラグ(X3)

ON

OFF

ON

OFF

RE81WH

3.4.6 Integrated value set function This is a function that can set the integrated value (electric energy (consumption, regeneration), reactive energy (consumption lag)) to an arbitrary value. It is used to clear integrated value.

(1) Setting procedure

Setting procedures are as follows. (a) Set the integrated value setting target (Un\G51) in the buffer memory.

Setting range is as follows.

Setting value Description

0 No set

(b) Set the integrated value setting value (Un\G52, 53) in the buffer memory.

・Configurable range: 0 to 999999999 ・The unit used for the setting value is the same as that used for the electric energy and reactive

energy output to the buffer memory. For details, refer to “5.3.2”.

(c) Turn Integrated value set request (YnC) from OFF to ON to enable the setting.

Integrated value set completion flag (XnC) turns ON after Integrated value set request (YnC) is set OFF to ON.

(d) After checking that integrated value set completion flag (XnC) turns ON and setting is completed, set

the integrated value set request (YnC) t o OF F. After detected that the integrated value set request (YnC) turns OFF, the integrated value set completion flag (XnC) turns OFF.

Integrated value set request (YnC )

Integrated value set completion flag (XnC)

Figure 3.4.6 Integrated value setting procedure

(2) Default value

Integrated value setting target (Un\G51) is set to 0 (No set). Integrated value setting value (Un\G52, 53) is set to 0.

35

Section 3 NAME AND FUNCTION OF EACH PART

Measured items

Details

waveform data of 1-2 line voltage

waveform data of 2-3 line voltage*1

waveform data of 1-phase current

waveform data of 3-phase current*1

RE81WH

3.4.7 Waveform data output function Waveform data is sampling data of current / voltage waveform of the measured circuit. Using this data, it is possible to display the waveform, obtain changes of waveform. (Each data is converted value as unit V, A) Waveform data is stored into the buffer memory in two methods as below.

* Waveform data to be measured is same, whereas buffer memory for storing data different.

(1) Waveform data sampled during period of measured data acquisition clock is stored into the buffer

memory.

The waveform data is stored into the buffer memory per period of measured data acquisition clock.

The buffer memory for storing multiple waveform data is secured. Waveform data sampled per sampling period (254μs) during period of measured data acquisition clock is collectively stored into the buffer memory. This method is used for acquiring waveform data synchronized with period of measured data acquisition clock. Refer to “4.2.1(8)” for synchronizing method.

(a) Measuring items

waveform data of voltage

waveform data of current

(b) Number of waveform data

The number of each waveform data to be stored is the number of sampling during period of measured data acquisition clock. Since the sampling period is not synchronized with the period of measured data acquisition clock, the

number of waveform data may be different even in the same period of measured data acquisition clock. Thus, the number of each waveform data is stored into the buffer memory separately from the waveform

data.

(c) Restrictions for waveform data:

・It is impossible to obtain waveform data immediately after applying power to programmable controller

system. (Module ready OFF state) Obtain waveform data after confirming “Module ready ON state”.

・It is impossible to obtain waveform data immediately after setting operating condition of this device.

Obtain waveform data after confirming “operating condition setting completed flag” is ON.

・Set the period of measured data acquisition clock below 50ms.

Where the period is larger than 50ms, waveform data is not stored into the buffer memory.

・It is possible to occur communication error inside the RE81WH due to disturbance noise (parallel noise

to CT line). When a communication error is occurred (when a communication error flag indicates error), waveform data during the period of measured data acquisition clock is not stored into the buffer memory. Instead “0” is stored into the buffer memory.

36

Section 3 NAME AND FUNCTION OF EACH PART

ontinuous waveform

data of voltage and

RE81WH

(2) The waveform data is stored into the buffer memory per sampling period.

The waveform data is stored into the buffer memory per sampling period (μs) of the waveform data.

This method is used for acquiring the waveform data synchronized with sampling period. Refer to “4.2.1(6)” for synchronizing method.

(a) Measured items

Measured items

Details

C

current

*1: When setting single phase 2-wire system for phase wire system, no measuring is performed.

(b) Number of waveform data The number of each waveform data to be stored into buffer memory at once is one.

(c) Restrictions for waveform data

・It is impossible to obtain waveform data immediately after applying power to programmable controller

system. (Module ready OFF state) Obtain waveform data after confirming “Module ready ON state”.

・It is impossible to obtain waveform data immediately after setting operating condition of this device.

Obtain waveform data after confirming “operating condition setting completed flag” is ON.

・It is possible to occur communication error inside the RE81WH due to disturbance noise (parallel noise

to CT line). When a communication error is occurred (when a communication error flag indicates error), waveform data during the period of measured data acquisition clock is not stored into the buffer memory.

(In this case, the last waveform data is stored into the buffer memory)

waveform data of 1-2 line voltage

waveform data of 2-3 line voltage*1

waveform data of 1-phase current

waveform data of 3-phase current*1

37

Section 4 I/O SIGNALS TO CPU MODULE

Input signal

(signal direction from RE81WH to CPU module)

Output signal

(signal direction from CPU module to RE81WH)

Device

No.

Device

No.

Periodic electric energy 1 data completion flag

Periodic electric energy 1 measurement flag

Periodic electric energy 2 data completion flag

Periodic electric energy 2 measurement flag

Periodic electric energy 1 reset completion flag

Periodic electric energy 2 reset completion flag

Xn6

Waveform data acquisition clock

Yn6

Use prohibited *1

Measured harmonics data acquisition clock

Xn8

Measured data acquisition clock

Yn8

Use prohibited *1

Operating condition setting completion flag

XnA

Alarm 1 flag

YnA

Alarm 1 reset request

XnB

Alarm 2 flag

YnB

Alarm 2 reset request

XnC

Integrated value set completion flag

YnC

Integrated value set request

XnD

Max./min. values clear completion flag

YnD

Max./min. values clear request

XnE

Use prohibited *1

YnE

Use prohibited *1

XnF

Error flag

YnF

Error clear request

Xn10

Use prohibited *1

Yn10

Use prohibited *1

Xn11

Use prohibited *1

Yn11

Use prohibited *1

Xn12

Use prohibited *1

Yn12

Use prohibited *1

Xn13

Use prohibited *1

Yn13

Use prohibited *1

Xn1C

Use prohibited *1

Yn1C

Use prohibited *1

Xn1D

Use prohibited *1

Yn1D

Use prohibited *1

Xn1E

Use prohibited *1

Yn1E

Use prohibited *1

Xn1F

Use prohibited *1

Yn1F

Use prohibited *1

Section 4 I/O SIGNALS TO CPU MODULE

4.1 List of I/O signals

I/O signals of RE81WH are listed in Table 4.1-1.

Table 4.1-1 List of I/O signals

RE81WH

Signal name

Xn0 Module ready Yn0 Use prohibited *1

Xn1

Xn2

Xn3

Xn4

Xn5

Xn7

Xn9

Use prohibited

*1

Yn1

Yn2

Yn3 Periodic electric energy 1 reset request

Yn4 Periodic electric energy 2 reset request

Yn5

Yn7

Use prohibited *1

Use prohibited

*1

Yn9 Operating condition setting request

Xn14

Xn15 Use prohibited *1 Yn15 Use prohibited *1

Xn16 Use prohibited *1 Yn16 Use prohibited *1

Xn17 Use prohibited *1 Yn17 Use prohibited *1

Xn18 Use prohibited *1 Yn18 Use prohibited *1

Xn19

Use prohibited

*1

Xn1A Use prohibited *1 Yn1A Use prohibited *1

Xn1B

Use prohibited

*1

*1: These signals cannot be used by the user since they are for system use only.

38

Yn14

Yn19

Yn1B

Use prohibited *1

Section 4 I/O SIGNALS TO CPU MODULE

RE81WH

4.2 Details of I/O signals

Detailed explanation about I/O signals of RE81WH is shown as follows

4.2.1 Input signals (1) Module ready (Xn0)

After the power of CPU module is turned on or the CPU module reset is performed, it will turn ON upon the measurement is ready.

This signal (Xn0) is turned OFF when energy measuring module displays a hardware error, then RUN LED is turned off.

(2) Periodic electric energy 1 data completion flag (Xn1)

When Periodic electric energy 1 measurement flag (Yn1) is turned OFF and measuring of the periodic electric energy 1 is stopped, then this signal (Xn1) turns ON. When Periodic electric energy 1 (Yn1) is turned ON and measuring of the periodic electric energy 1 is started,

then this signal (Xn1) turns OFF. Where you obtain data in a state where Periodic electric energy 1 is settled, obtain the data while this signal

(Xn1) is ON. * For specific usage procedures, refer to “3.4.2”.

(3) Periodic electric energy 2 data completion flag (Xn2)

The usage procedure is the same as Periodic electric energy 1 data completion flag (Xn1).

Refer to (2).

(4) Periodic electric energy 1 reset completion flag (Xn3)

When Periodic electric energy 1 reset request (Yn3) is turned ON, and the periodic electric energy 1 stored

in the buffer memory is reset, then this signal (Xn3) turns ON. When Periodic electric energy 1 reset request (Yn3) is turned off, the signal (Xn3) turns OFF.

* For specific usage procedures, refer to “3.4.2”.

(5) Periodic electric energy 2 reset completion flag (Xn4)

The usage procedure is the same as Periodic electric energy 1 reset completion flag (Xn3).

Refer to (4).

39

Section 4 I/O SIGNALS TO CPU MODULE

T

TON

T

254μs

127μs

Measured items

Buffer memory

Voltage and current

1-2 voltage waveform data

Un\G22002, 22003

2-3 voltage waveform data

Un\G 22004，22005

Phase 1 current waveform data

Un\G 22008，22009

Phase 3 current waveform data

Un\G 22012，22013

RE81WH

(6) Waveform data acquisition clock (Xn6)

The clock is to acquire the waveform data by synchronizing with this module. This signal (Xn6) detects switching of OFF to ON so that it is able to acquire waveform data by synchronizing.

*When acquiring waveform data per period of measured data acquisition clock, refer to “5.2.12”.

(a) Clock operation

After power ON of the CPU module, it starts clock operation with this signal (6) ON immediately after first computing. When the setting of phase wire system, primary voltage, primary current primary voltage of VT, secondary

voltage of VT, primary current of CT and period of measured data acquisition clock is changed, it starts clock operation with the signal immediately after setting change.

Below diagram indicates ON time and OFF time of this signal.

OFF

(b) Measured items which update data

continuous

waveform data

(c) Synchronizing method

Please note as below in order to acquire waveform data by synchronizing with this module. (i) The program is configured to set the scan time of ladder program will be less than 127μs.

The scan time should be shorter than ON time and OFF time in order to detect “OFF → ON” of the

signal (Xn6). (ii) Acquire data by detecting “OFF → ON” of the signal (Xn6).

Waveform data is updated immediately before the signal (Xn6) is ON. Since the last value and latest

value are mixed while updating, it is able to acquire waveform data at a timing as below.

40

Section 4 I/O SIGNALS TO CPU MODULE

1 sec

500 ms

Un\G1002 - Un\G 1021

Un\G1022, 1023

Un\G1030 - Un\G 1049

Un\G1050, 1051

Un\G1202 - Un\G1221

\

Phase 3 harmonic current (n th)

Un\G1260 - Un\G1279

Phase 3 harmonic current (Total)

Un\G1280, 1281

1-2 voltage harmonic distortion (n th)

Un\G1402 - Un\G1410

1-2 voltage harmonic distortion (Total)

Un\G1411

2-3 voltage harmonic distortion (n th)

Un\G1420 - Un\G1428

2-3 voltage harmonic distortion (Total)

Un\G1429

Phase 1 current harmonic distortion (n th)

Un\G1602 - Un\G1610

Phase 1 current harmonic distortion (Total)

Un\G1611

Phase 3 current harmonic distortion (n th)

Un\G1640 - Un\G1648

Phase 3 current harmonic distortion (Total)

Un\G1649

RE81WH

(7) Measured harmonics data acquisition clock (Xn7)

The clock is to acquire measured harmonics data by synchronizing with this module. If the signal (Xn7) detects switching from OFF to ON, it is possible to obtain measured harmonics data in synchronization with this module.

(a) Clock operation

After the power is supplied to the CPU module and immediately after the initial computation is performed, this signal (Xn7) is turned ON and measured harmonics data acquisition clock is started. If the settings of the phase wire system, primary voltage, primary current, primary voltage of VT, secondary

voltage of VT, primary current of CT and period of measured data acquisition clock are changed, this signal turns ON immediately after the change of the settings and measured harmonics data acquisition

clock is started. Below diagram indicates ON time and OFF time of this signal.

T TON T

OFF

(b) Measured items which update data

The measured items to be updated the data in the period of this signal (Xn7) are shown below.

Measured items Buffer memory

Harmonic voltage 1-2 harmonic voltage (n th)

1-2 harmonic voltage (Total)

2-3 harmonic voltage (n th)

2-3 harmonic voltage (Total)

Harmonic current Phase 1 harmonic current (n th)

Phase 1 harmonic current (Total)

Un

G1222, 1223

Voltage harmonic

distortion

Current harmonic distortion

* The order of harmonic as follows.

RMS: 1st, 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th Distortion: 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th

41

Section 4 I/O SIGNALS TO CPU MODULE

RE81WH

(c) Synchronizing method

Please note as below in order to acquire measured harmonics data by synchronizing with this module.

(i) The program is configured to set the scan time of ladder program will be less than 500ms.

The scan time should be shorter than ON time and OFF time in order to detect “OFF → ON” of the

signal (Xn7). (ii) Acquire data by detecting “OFF → ON” of the signal (Xn7).

Measured harmonics data is updated immediately before the signal (Xn7) is ON. Since the last value

and latest value are mixed while updating, it is able to acquire measured harmonics data at a timing

as below.

42

Section 4 I/O SIGNALS TO CPU MODULE

Period of

RE81WH

(8) Measured data acquisition clock (Xn8)

The clock is to acquire measured data by synchronizing with this module. If it is able to detect switching from ON to OFF (or OFF to ON) of the signal (Xn8), it is possible to obtain measured data in synchronization with this module.

(a) Clock operation

After the power is supplied to the CPU module and immediately after the initial computation is performed, this signal (Xn8) is turned ON and clock operation is started. After that, this signal turns ON at the timing when the measurement data is completely written into the buffer memory after the elapse of the period of

measured data acquisition clock. If the settings of the phase wire system, primary voltage, primary current, primary voltage of VT, secondary

voltage of VT, primary current of CT and period of measured data acquisition clock are changed, this signal turns ON immediately after the change of the settings and clock operation is started. Below diagram indicates ON time and OFF time of this signal (Xn8).

measured data

acquisition clock

10ms 6 to 10ms 4ms 2 to 6ms

4/5 to 1 of the period

20 to 10000ms

of measured data

acquisition clock

T TON T

2/5 of the measured

data acquisition clock

2/5 to 3/5 of the period

of measured data

acquisition clock

OFF

43

Section 4 I/O SIGNALS TO CPU MODULE

Un\G102, 103

Un\G104, 105

Un\G106, 107

\

Periodic electric energy 2

Un\G116, 11 7

1 - phase current

Un\G202, 203

2 - phase current

Un\G204, 205

3 - phase current

Un\G206, 207

1 - phase current demand

Un\G210, 211

2 - phase current demand

Un\G212, 213

3 - phase current demand

Un\G214, 215

Average current

Un\G218, 219

Voltage

1 - 2 line voltage

Un\G302, 303

2 - 3 line voltage

Un\G304, 305

3 - 1 line voltage

Un\G306, 307

Average voltage

Un\G314, 315

Electric power

Un\G402, 403

Un\G404, 405

Un\G502, 503

Un\G602, 603

Un\G702, 703

Un\G802, 803

Un\G10004 - Un\G10603

Un\G12004 - Un\G12603

\

Phase 3 current waveform data 1 to 300*1

Un\G20004 - Un\G20603

(b) Measured items which update data

The measured items to update the data in the period of this signal (Xn8) are shown below.

Measured items Buffer memory

Electric energy Electric energy (consumption)

Electric energy (regeneration)

Reactive energy (consumption lag)

Periodic electric energy 1

Current

Un

G114, 11 5

RE81WH

Electric power demand

Reactive power Reactive power

Apparent power Apparent power

Power factor Power factor

Frequency Frequency

Waveform data*2 1-2 voltage waveform data 1 to 300*1

2-3 voltage waveform data 1 to 300*1

Phase 1 current waveform data 1 to 300*1

*1. Since the number of waveform data varies according to the period of measured data acquisition clock, it

is different from the actual range for storing data.

*2. It stores data when the period of measured data acquisition clock is 10 to 50ms.

It does not store the waveform data into the buffer memory when the period of measured data acquisition

clock is over 50ms.

Un

G16004 - Un\G16603

44

Section 4 I/O SIGNALS TO CPU MODULE

acquisition clock

10ms

Less than 2ms

20ms to 10000ms

2/5 of the period of measured data acquisition clock

(c) Synchronizing method

Please note as below in order to acquire measured data by synchronizing with this module.

(i) The program is configured to set the scan time of ladder program will be within below range.

The scan time should be shorter than ON time and OFF time in order to detect “OFF → ON” of the

signal (Xn8).

Period of measured data

(ii) Acquire data by detecting “OFF → ON” of the signal (Xn8).

Measured data is updated immediately before the signal (Xn8) is ON. Since the last value and latest

value are mixed while updating, it is able to acquire measured data at a timing as below.

Scan time of ladder program

RE81WH

45

Section 4 I/O SIGNALS TO CPU MODULE

RE81WH

(9) Operating condition setting completion flag (Xn9)

When turning Operating condition setting request (Yn9) to ON and changing the following settings, this signal (Xn9) turns ON.

・Phase wire system (Un\G0) ・Primary voltage (Un\G1) ・Primary current (Un\G2) ・Current demand time (Un\G3) ・Electric power demand time (Un\G4) ・Primary voltage of VT (Un\G5) ・Secondary voltage of VT (Un\G6) ・Primary current of CT (Un\G7) ・Alarm 1 monitoring factor (Un\G 11 ) ・Alarm 1 monitoring value (Un\G12, 13) ・Alarm 1 reset method (Un\G14) ・Alarm 1 delay time (Un\G15) ・Alarm 2 monitoring factor (Un\G21) ・Alarm 2 monitoring value (Un\G22, 23) ・Alarm 2 reset method (Un\G24) ・Alarm 2 delay time (Un\G25) ・Period of measured data acquisition clock (Un\G60, 61)

When operating condition setting request (Yn9) is OFF, this signal (Xn9) turns O F F.

(10) Alarm 1 flag (XnA)

If the measured value of the alarm 1 monitoring factor (Un\G11) exceeds the upper limit (in the case of the lower alarm, it goes under the lower limit), and if the situation continues and passes the alarm 1 delay time (Un\G15), then this signal (XnA) turns ON. Operations after this signal (XnA) is turned ON are different depending on the setting of the alarm 1 reset method (Un\G14). (a) When the alarm 1 reset method (Un\G14) is “0: Self-retention”

If the measured value of the alarm 1 monitoring target becomes below the upper limit (in the case of lower

limit alarm, it exceeds the lower limit), then this signal (XnA) retains ON. When the alarm 1 reset request (YnA) is set to ON, this signal (XnA) turns OFF.

(b) When the alarm 1 reset method (Un\G14) is “1: Self-reset”

Even if the measured value of the alarm 1 monitoring target becomes below the upper limit (in the case

of lower limit alarm, it exceeds the lower limit), this signal (XnA) turns OFF.

When the measured value of the alarm 1 monitoring target is set to “not monitoring”, this signal (XnA) turns

OF F. * For the actual behavior of alarm monitoring, refer to “3.4.4”.

(11) Alarm 2 flag (XnB)

The usage procedure is the same as Alarm 1 flag (XnA). Refer to (10).

46

Section 4 I/O SIGNALS TO CPU MODULE

RE81WH

(12) Integrated value set completion flag (XnC)

When Integrated value set request (YnC) is turned ON, and preset of each integrated value such as electric energy (consumption), electric energy (regeneration), reactive energy (consumption delay) is completed, this signal (XnC) turns ON.

When integrated value set request (YnC) is turned OFF, this signal (XnC) turns OFF.

(13) Max./min. values clear completion flag (XnD)

When Max./min. values clear request (YnD) is turned ON and the data of max./min. value (maximum value,

minimum value and their date and time of occurrence) are cleared, this signal (XnD) turns ON. When Max./min. values clear request (YnD) is turned OFF, this signal (XnD) turns OFF.

(14) Error flag (XnF)

If an outside-set-value error occurs, and if a hardware error occurs, this signal (XnF) turns ON. The description of the occurred error can be checked with a latest error code (Un\G3000).

If an outside-set-value error occurs, this signal (XnF) is turned OFF by setting a value within the range again. * For description of error codes, refer to “8.1 List of error codes”.

47

Section 4 I/O SIGNALS TO CPU MODULE

RE81WH

4.2.2 Output signals (1) Periodic electric energy 1 measurement flag (Yn1)

While switching this signal (Yn1) from the ON status to the OFF status, the periodic electric energy 1 is

measured, and will be stored into the buffer memory. When this signal (Yn1) is turned OFF, Periodic electric energy 1 data completion flag (Xn1) is turns ON at

the time when the periodic electric energy 1 is settled for that period, and then the periodic electric energy 1 is retained. In order to read the settled data of the periodic electric energy 1 by using the sequence program, use Periodic

electric energy 1 data completion flag (Xn1) as the interlock condition. * For specific usage procedures, refer to “3.4.2”.

(2) Periodic electric energy 2 measurement flag (Yn2)

The usage procedure is the same as that of Periodic electric energy 1 measurement flag (Yn1). Refer to (1).

(3) Periodic electric energy 1 reset request (Yn3)

When this request (Yn3) is turned ON from the OFF status, Periodic electric energy 1 reset completion flag (Xn3) turns ON, and the periodic electric energy 1 that has been stored in the buffer memory is reset to “0”. Regardless of the status of Periodic electric energy 1 measurement flag (Yn1), either OFF or ON, the

periodic electric energy can be reset using this request (Yn3). When Periodic electric energy 1 measurement flag (Yn1) is ON, and the measurement is taking place, the measurement will resume immediately after the

reset. When this request (Yn3) is set to OFF, Periodic electric energy 1 reset completion flag (Xn3) turns OFF.

*For specific usage procedures, refer to “3.4.2”.

(4) Periodic electric energy 2 reset request (Yn4)

The usage procedure is the same as that of Periodic electric energy 1 reset request (Yn3). Refer to (3).

48

Section 4 I/O SIGNALS TO CPU MODULE

RE81WH

(5) Operating condition setting request (Yn9)

When switching this request (Yn9) from the OFF status to the ON status, the following operating conditions will be set.

・Phase wire system (Un\G0) ・Primary voltage (Un\G1) ・Primary current (Un\G2) ・Current demand time (Un\G3) ・Electric power demand time (Un\G4) ・Primary voltage of VT (Un\G5) ・Secondary voltage of VT (Un\G6) ・Primary current of CT (Un\G7) ・Alarm 1 monitoring factor (Un\G 11 ) ・Alarm 1 monitoring value (Un\G12, 13) ・Alarm 1 reset method (Un\G14) ・Alarm 1 delay time (Un\G15) ・Alarm 2 monitoring factor (Un\G21) ・Alarm 2 monitoring value (Un\G22, 23) ・Alarm 2 reset method (Un\G24) ・Alarm 2 delay time (Un\G25) ・Period of measured data acquisition clock (Un\G60, 61)

When the setting for operating condition is completed, Operating condition setting completion flag (Xn9) turns ON.

When this request (Yn9) is turned OFF, Operating condition setting completion flag (Xn9) turns OFF.

(6) Alarm 1 reset request (YnA)

When Alarm 1 flag (XnA) is reset, this request (YnA) turns ON.

When this request (YnA) is switched from the OFF status to the ON status, Alarm 1 flag (XnA) will forcibly be turned OFF regardless of the present alarm occurrence status. Make sure that Alarm 1 flag (XnA) is turned OFF, then turn this request (YnA) OFF.

(7) Alarm 2 reset request (YnB)

The usage procedure is the same as that of Alarm 1 reset request (YnA). Refer to (6).

(8) Integrated value set request (YnC)

If you want to set the energy (consumption and regeneration) and the reactive energy to an arbitrary value, use this signal (YnC). After writing Integrated value setting target (Un\G51) and Integrated value setting value (Un\G52, 53) into it, and after that, turn this request (YnC) into ON. When switching this request (YnC) from the OFF status to the ON status, setting of the integrated value will be performed. When the integrated value setting is completed, integrated value set completion flag (XnC)

turns ON. When this request (YnC) is set to OFF, Integrated value set completion flag (XnC) turns OFF.

49

Section 4 I/O SIGNALS TO CPU MODULE

RE81WH

(9) Max./min. values clear request (YnD)

When the max./min. value data (max./min. value and their date/time of occurrence) is reset, this request (YnD) turns ON.

When switching this request (YnD) from the OFF status to the ON status after max./min. values clear target (Un\G56) is setting, the max./min. value data corresponding to the setting contents will be cleared. When

clearing the max./min. data is completed, Max./min. values clear completion flag (XnD) turns ON.

(10) Error clear request (YnF)

When switching this request (YnF) from the OFF status to the ON status while an outside-set-value error is present, Error flag (XnF) turns OFF, and the latest error code in the buffer memory (Un\G3000) and time of error occurrence (Un\G3001 - Un\G3005) will be cleared. At the same time as clearing the error above, the value that was set in the buffer memory below will be returned to the previously set value, and Integrated value setting target (Un\G51) and Integrated value setting value (Un\G52, 53) will be changed to 0.

[Set value to be replaced with the previously set value]

・Phase wire system (Un\G0) ・Primary voltage (Un\G1) ・Primary current (Un\G2) ・Current demand time (Un\G3) ・Electric power demand time (Un\G4) ・Primary voltage of VT (Un\G5) ・Secondary voltage of VT (Un\G6) ・Primary current of CT (Un\G7) ・Alarm 1 monitoring factor (Un\G 11 ) ・Alarm 1 monitoring value (Un\G12, 13) ・Alarm 1 reset method (Un\G14) ・Alarm 1 delay time (Un\G15) ・Alarm 2 monitoring factor (Un\G21) ・Alarm 2 monitoring value (Un\G22, 23) ・Alarm 2 reset method (Un\G24) ・Alarm 2 delay time (Un\G25) ・Period of measured data acquisition clock (Un\G60, 61)

While a hardware error is occurred (error code: 0001H to 0FFFH), it will not be cleared even though this signal (YnF) turns ON.

50

Section 5 BUFFER MEMORY

Data writing to those area may cause malfunction.

Output value

mode*2

Setting

0

Phase wire system

3

R/W ○ 3

1

Primary voltage

2

R/W ○

2

Primary current

2

R/W ○ 2

3

Current demand time

120

R/W ○

120

4

Electric power demand time

120

R/W ○ 120

5

Primary voltage of VT

0

R/W ○

0

6

Secondary voltage of VT

0

R/W ○ 0

7

Primary current of CT

0

R/W ○

0

8 - 10

System area

- - -

-

11

Alarm 1 monitoring factor

0

R/W ○

5

12

13

14

Alarm 1 reset method

0

R/W ○ 0

15

Alarm 1 delay time

0

R/W ○

5

16 - 20

System area

- - -

-

21

Alarm 2 monitoring factor

0

R/W ○

6

22

23

24

Alarm 2 reset method

0

R/W ○ 1

25

Alarm 2 delay time

0

R/W ○

300

26 - 50

System area

- - -

-

51

Integrated value setting target

0

W ×

0

52

53

54

55

56

Max./min. values clear target

0 W ×

11

57 - 59

System area

- - -

-

60

61

62 - 99

System area

- - -

-

Section 5 BUFFER MEMORY

5.1 Buffer memory assignment

The following describes buffer memory assignment.

RE81WH

Caution

● In the buffer memory, do not write data to the "system area" or area where data writing is not impossible

from sequence programs.

(1) Configurable sections (Un\G0 to Un\G99)

Table 5.1-1 Configurable sections (Un\G0 to Un\G99)

Item

value

Address

(Decimal)

Description

Alarm 1 monitoring value 0 R/W ○ 1000

Default

value

R/W

Back

up*1

during the test

Alarm 2 monitoring value 0 R/W ○ -1000

Integrated value setting value 0 W × 0

System area - - - -

Period of measured data acquisition clock 10 R/W ○ 10

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory. *2: For the procedure for using the test mode, refer to “3.4.5”.

51

Section 5 BUFFER MEMORY

Output value

mode*2

Electric

100

Multiplying factor of electric energy and reactive energy

-

R ×

-4

101

System area

- - -

-

102

103

104

105

106

107

108 - 113

System area

- - -

-

114

115

116

117

118 - 199

System area

- - -

-

Current

200

Multiplying factor of current

-3

R ×

-3

201

System area

- - -

-

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

Year of time of max. current demand

-

R ○

2011h

223

Month and day of time of max. current demand

-

R ○

0102h

224

Hour and minute of time of max. current demand

-

R ○

0304h

225

Second and day of the week of time of max. current demand

-

R ○

0501h

226

Millisecond of time of max. current demand

-

R ○

0500h

227

System area

- - -

-

228

229

230

Year of time of min. current demand

-

R ○

2014h

231

Month and day of time of min. current demand

-

R ○

0405h

232

Hour and minute of time of min. current demand

-

R ○

0607h

233

Second and day of the week of time of min. current demand

-

R ○

0804h

234

Millisecond of time of min. current demand

-

R ○

0600h

235 - 299

System area

- - -

-

(2) Measurement sections (Un\G100 to Un\G2999)

Table 5.1-2 Measurement sections (Un\G100 to Un\G2999) (1/6)

RE81WH

Item

energy

Address

(Decimal)

Description

Electric energy (consumption) - R ○ 123456789

Electric energy (regeneration) - R ○ 234567890

Reactive energy (consumption lag) - R ○ 345678901

Periodic electric energy 1 - R ○ 789012345

Periodic electric energy 2 - R ○ 890123456

Phase 1 current - R × 10100

Phase 2 current - R × 10200

Phase 3 current - R × 10300

System area - - - -

Phase 1 current demand - R × 1110 0

Default

value

R/W

Back

up*1

during the test

Phase 2 current demand - R × 11200

Phase 3 current demand - R × 11300

System area - - - -

Average current - R × 10400

Maximum current demand - R ○ 10500

Minimum current demand - R ○ 20600

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory. *2: For the procedure for using the test mode, refer to “3.4.5”.

52

Section 5 BUFFER MEMORY

Output value

mode*2

Voltage

300

Multiplying factor of voltage

-3 R ×

-3

301

System area

- - -

-

302

303

304

305

306

307

308 - 313

System area

- - -

-

314

315

316 - 319

System area

- - -

-

320

321

322

Year of time of max. voltage

- R ○

2013h

323

Month and day of time of max. voltage

-

R ○

0304h

324

Hour and minute of time of max. voltage

- R ○

0506h

325

Second and day of the week of time of max. voltage

-

R ○

0703h

326

Millisecond of time of max. voltage

- R ○

0700h

327

System area

- - -

-

328

329

330

Year of time of min. voltage

- R ○

2014h

331

Month and day of time of min. voltage

-

R ○

0405h

332

Hour and minute of time of min. voltage

- R ○

0607h

333

Second and day of the week of time of min. voltage

-

R ○

0804h

334

Millisecond of time of min. voltage

- R ○

0800h

335 - 399

System area

- - -

-

Electric

400

Multiplying factor of electric power

-3 R ×

-3

401

System area

- - -

-

402

403

404

405

406 - 419

System area

- - -

-

420

421

422

Year of time of max. electric power demand

-

R ○

2015h

423

Month and day of time of max. electric power demand

- R ○

0506h

424

Hour and minute of time of max. electric power demand

-

R ○

0708h

425

Second and day of the week of time of max. electric power demand

- R ○

0905h

426

Millisecond of time of max. electric power demand

-

R ○

0321h

427

System area

- - -

-

428

429

430

Year of time of min. electric power demand

-

R ○

2016h

431

Month and day of time of min. electric power demand

- R ○

0607h

432

Hour and minute of time of min. electric power demand

-

R ○

0809h

433

Second and day of the week of time of min. electric power demand

- R ○

1005h

434

Millisecond of time of min. electric power demand

-

R ○

0654h

435 - 499

System area

- - -

-

Table 5.1-2 Measurement sections (Un\G100 to Un\G2999) (2/6)

RE81WH

Item

Address

(Decimal)

Description

1-2 voltage - R × 20100

2-3 voltage - R × 20200

3-1 voltage - R × 20300

Average voltage - R × 20400

Maximum voltage - R ○ 20500

Minimum voltage - R ○ 20600

Default

value

R/W

Back

up*1

during the test

power

Electric power - R × 30100

Electric power demand - R × 30200

Maximum electric power demand - R ○ 30300

Minimum electric power demand - R ○ 30400

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory. *2: For the procedure for using the test mode, refer to “3.4.5”.

53

Section 5 BUFFER MEMORY

Output value

test mode*2

Reactive

500

Multiplying factor of reactive power

-3 R ×

-3

501

System area

- - -

-

502

503

504 - 599

System area

- - -

-

Apparent

600

Multiplying factor of Apparent power

-3

R ×

-3

601

System area

- - -

-

602

603

604 - 699

System area

- - -

-

Power

700

Multiplying factor of power factor

-3 R ×

-3

701

System area

- - -

-

702

703

704 - 719

System area

- - -

-

720

721

722

Year of time of max. power factor

-

R ○

2017h

723

Month and day of time of max. power factor

- R ○

0708h

724

Hour and minute of time of max. power factor

-

R ○

0910h

725

Second and day of the week of time of max. power factor

- R ○

1106h

726

Millisecond of time of max. power factor

-

R ○

0987h

727

System area

- - -

-

728

729

730

Year of time of min. power factor

-

R ○

2018h

731

Month and day of time of min. power factor

- R ○

0809h

732

Hour and minute of time of min. power factor

-

R ○

1011h

733

Second and day of the week of time of min. power factor

- R ○

1200h

734

Millisecond of time of min. power factor

-

R ○

0111 h

735 - 799

System area

- - -

-

Frequency

800

Multiplying factor of frequency

-3

R ×

-3

801

System area

- - -

-

802

803

804 - 999

System area

- - -

-

Table 5.1-2 Measurement sections (Un\G100 to Un\G2999) (3/6)

RE81WH

Item

power

factor

Address

(Decimal)

Description

Reactive power - R × 40100

Apparent power - R × 40200

Power factor - R × 50100

Maximum power factor - R ○ 50200

Minimum power factor - R ○ 50300

Default

value

R/W

Back

up*1

during the

Frequency - R × 60100

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory. *2: For the procedure for using the test mode, refer to “3.4.5”.

54

Section 5 BUFFER MEMORY

Output value

test mode*2

Harmonic

1000

Multiplying factor of harmonic voltage

-3 R ×

-3

1001

System area

- - -

-

1002

1003

1004

1005

1006

1007

1008

1009

1010

1011

1012

1013

1014

1015

1016

1017

1018

1019

1020

1021

1022

1023

1024 -

1029

1030

1031

1032

1033

1034

1035

1036

1037

1038

1039

1040

1041

1042

1043

1044

1045

1046

1047

1048

1049

1050

1051

1052 -

1199

Table 5.1-2 Measurement sections (Un\G100 to Un\G2999) (4/6)

RE81WH

Item

voltage

Address

(Decimal)

Description

1-2 harmonic voltage (1st) - R × 101

1-2 harmonic voltage (3rd) - R × 103

1-2 harmonic voltage (5th) - R × 105

1-2 harmonic voltage (7th) - R × 107

1-2 harmonic voltage (9th) - R × 109

1-2 harmonic voltage (11th) - R × 111

1-2 harmonic voltage (13th) -- R × 113

1-2 harmonic voltage (15th) - R × 115

1-2 harmonic voltage (17th) - R × 117

1-2 harmonic voltage (19th) - R × 119

1-2 harmonic voltage (Tota l) - R × 120

System area - - - -

Default

value

R/W

Back

up*1

during the

R

2-3 harmonic voltage (1st) -

2-3 harmonic voltage (3rd) -

2-3 harmonic voltage (5th) -

2-3 harmonic voltage (7th) -

2-3 harmonic voltage (9th) -

2-3 harmonic voltage (11th) -

2-3 harmonic voltage (13th) -

2-3 harmonic voltage (15th) -

2-3 harmonic voltage (17th) -

2-3 harmonic voltage (19th) -

2-3 harmonic voltage (Tota l) -

System area - - - -

R

× 201

× 203

× 205

× 207

× 209

× 211

× 213

× 215

× 217

× 219

× 220

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory. *2: For the procedure for using the test mode, refer to “3.4.5”.

55

Section 5 BUFFER MEMORY

Output value

test mode*2

Harmonic

1200

Multiplying factor of harmonic current

-3 R ×

-3

1201

System area

- - -

-

1202

1203

1204

1205

1206

1207

1208

1209

1210

1211

1212

1213

1214

1215

1216

1217

1218

1219

1220

1221

1222

1223

1224 -

1259

1260

1261

1262

1263

1264

1265

1266

1267

1268

1269

1270

1271

1272

1273

1274

1275

1276

1277

1278

1279

1280

1281

1282 -

1399

Table 5.1-2 Measurement sections (Un\G100 to Un\G2999) (5/6)

RE81WH

Item

current

Address

(Decimal)

Description

Phase 1 harmonic current (1st) - R × 2101

Phase 1 harmonic current (3rd) - R × 2103

Phase 1 harmonic current (5th) - R × 2105

Phase 1 harmonic current (7th) - R × 2107

Phase 1 harmonic current (9th) - R × 2109

Phase 1 harmonic current (11th) - R × 2111

Phase 1 harmonic current (13th) - R × 2113

Phase 1 harmonic current (15th) - R × 2115

Phase 1 harmonic current (17th) - R × 2117

Phase 1 harmonic current (19th) - R × 2119

Phase 1 harmonic current (Total) - R × 2120

System area - - - -

Default

value

R/W

Back

up*1

during the

R

Phase 3 harmonic current (1st) -

Phase 3 harmonic current (3rd) -

Phase 3 harmonic current (5th) -

Phase 3 harmonic current (7th) -

Phase 3 harmonic current (9th) -

Phase 3 harmonic current (11th) -

Phase 3 harmonic current (13th) -

Phase 3 harmonic current (15th) -

Phase 3 harmonic current (17th) -

Phase 3 harmonic current (19th) -

Phase 3 harmonic current (Total) -

System area - - - -

R

× 2201

× 2203

× 2205

× 2207

× 2209

× 2211

× 2213

× 2215

× 2217

× 2219

× 2220

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory. *2: For the procedure for using the test mode, refer to “3.4.5”.

56

Section 5 BUFFER MEMORY

Output value

test mode*2

Voltage

1400

Multiplying factor of voltage harmonic distortion

-1 R ×

-1

1401

System area

- - -

-

1402

1-2 voltage harmonic distortion (3rd)

- R ×

4103

1403

1-2 voltage harmonic distortion (5th)

-

R ×

4105

1404

1-2 voltage harmonic distortion (7th)

- R ×

4107

1405

1-2 voltage harmonic distortion (9th)

-

R ×

4109

1406

1-2 voltage harmonic distortion (11th)

- R ×

4111

1407

1-2 voltage harmonic distortion (13th)

-

R ×

4113

1408

1-2 voltage harmonic distortion (15th)

- R ×

4115

1409

1-2 voltage harmonic distortion (17th)

-

R ×

4117

1410

1-2 voltage harmonic distortion (19th)

- R ×

4119

1411

1-2 voltage harmonic distortion (Total)

-

R ×

4120

1412 -

1419

1420

2-3 voltage harmonic distortion (3rd)

-

R ×

4203

1421

2-3 voltage harmonic distortion (5th)

- R ×

4205

1422

2-3 voltage harmonic distortion (7th)

-

R ×

4207

1423

2-3 voltage harmonic distortion (9th)

- R ×

4209

1424

2-3 voltage harmonic distortion (11th)

-

R ×

4211

1425

2-3 voltage harmonic distortion (13th)

- R ×

4213

1426

2-3 voltage harmonic distortion (15th)

-

R ×

4215

1427

2-3 voltage harmonic distortion (17th)

- R ×

4217

1428

2-3 voltage harmonic distortion (19th)

-

R ×

4219

1429

2-3 voltage harmonic distortion (Total)

- R ×

4220

1430 -

1599

Current

1600

Multiplying factor of current harmonic distortion

-1

R ×

-1

1601

System area

- - -

-

1602

Phase 1 current harmonic distortion (3rd)

-

R ×

6103

1603

Phase 1 current harmonic distortion (5th)

-

R ×

6105

1604

Phase 1 current harmonic distortion (7th)

-

R ×

6107

1605

Phase 1 current harmonic distortion (9th)

-

R ×

6109

1606

Phase 1 current harmonic distortion (11th)

-

R ×

6111

1607

Phase 1 current harmonic distortion (13th)

-

R ×

6113

1608

Phase 1 current harmonic distortion (15th)

-

R ×

6115

1609

Phase 1 current harmonic distortion (17th)

-

R ×

6117

1610

Phase 1 current harmonic distortion (19th)

-

R ×

6119

1611

Phase 1 current harmonic distortion (Total)

-

R ×

6120

1612 -

1639

1640

Phase 3 current harmonic distortion (3rd)

-

R ×

6203

1641

Phase 3 current harmonic distortion (5th)

- R ×

6205

1642

Phase 3 current harmonic distortion (7th)

-

R ×

6207

1643

Phase 3 current harmonic distortion (9th)

- R ×

6209

1644

Phase 3 current harmonic distortion (11th)

-

R ×

6211

1645

Phase 3 current harmonic distortion (13th)

- R ×

6213

1646

Phase 3 current harmonic distortion (15th)

- R

6215

1647

Phase 3 current harmonic distortion (17th)

- R ×

6217

1648

Phase 3 current harmonic distortion (19th)

-

R ×

6219

1649

Phase 3 current harmonic distortion (Total)

- R ×

6220

1650 -

2999

Table 5.1-2 Measurement sections (Un\G100 to Un\G2999) (6/6)

RE81WH

Item

harmonic distortion

Address

(Decimal)

Description

System area - - - -

Default

value

R/W

Back

up*1

during the

harmonic distortion

System area - - - -

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory.

*2: For the procedure for using the test mode, refer to “3.4.5”.

57

Section 5 BUFFER MEMORY

Output value

mode*2

Error

3000

Latest error code

- R -

3001h

3001

Year of time of error

- R -

2019h

3002

Month and day of time of error

- R -

0910h

3003

Hour and minute of time of error

- R -

1112 h

3004

Second and day of the week of time of error

- R -

1301h

3005

Millisecond of time of error

-

R ×

0111 h

3006 -

3099

LED

3100

3101

3102 -

4999

Output value

mode*2

Voltage

10000

Multiplying factor of voltage waveform data

-3 R -

-3

10001

Number of the waveform data of voltage

0 R -

40

10002

Communication error flag

0 R -

0

10003

System area

- - -

-

10004

10005

10006

10007

10602

10603

10604

System area

- - - - 12003 12004

12005

12006

12007

12602

12603

12604

System area

- - -

-

15999

(3) Common sections (Un\G3000 to Un\G4999)

Table 5.1-3 Common sections (Un\G3000 to Un\G4999)

RE81WH

Item

Address

(Decimal)

Description

System area - - - -

Status of LEDs - R × 1111h

System area - - - -

Default

value

R/W

Back

up*1

during the test

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory. *2: For the procedure for using the test mode, refer to “3.4.5”.

(4) Waveform data sections (Un\G10000 to Un\G22013)

Table 5.1-4 Waveform data sections (Un\G10000 to Un\G22013) (1/2)

Item

waveform

data

Address

(Decimal)

Description

Default

value

R/W

Back

up*1

during the test

1-2 voltage waveform data 1 *3 0 R - 1

1-2 voltage waveform data 2 *3 0 R - 2

・・・

1-2 voltage waveform data 300 *3 0 R - 998

-

2-3 voltage waveform data 1 *3 0 R - 1001

2-3 voltage waveform data 2 *3 0 R - 1002

・・・

2-3 voltage waveform data 300 *3 0 R - 1998

-

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory. *2: For the procedure for using the test mode, refer to “3.4.5”.

*3: Storage addresses for each 300 waveform data are allocated to the buffer memory. Practically, waveform

data being sampled during period of measured data acquisition clock is stored, 0 is stored to the remaining address.

58

Section 5 BUFFER MEMORY

Output value

mode*2

Current

16000

Multiplying factor of current waveform data

-3 R -

-3

16001

Number of the waveform data of current

0 R -

40

16002

Communication error flag

0 R -

0

16003

System area

- - -

-

16004

16005

16006

16007

16602

16603

16604

System area

- - -

-

20003

20004

20005

20006

20007

20602

20603

20604

System area

- - -

-

21999

Voltage

22000

Multiplying factor of voltage and current waveform data

-3 R -

-3

22001

Communication error flag

0 R -

0

22002

22003

22004

22005

22006

22007

22008

22009

22010

22011

22012

22013

Table 5.1-4 Waveform data sections (Un\G10000 to Un\G22013) (2/2)

RE81WH

Item

waveform

data

Address

(Decimal)

-

Description

Phase 1 current waveform data 1 *3 0 R - 3001

Phase 1 current waveform data 2 *3 0 R - 3002

・・・

Phase 1 current waveform data 300 *3 0 R - 3998

Phase 3 current waveform data 1 *3 0 R - 5001

Phase 3 current waveform data 2 *3 0 R - 5002

・・・

Phase 3 current waveform data 300 *3 0 R - 5998

Default

value

R/W

Back

up*1

during the test

and current

continuous

waveform

data

1-2 voltage waveform data 0 R - 1

2-3 voltage waveform data 0 R - 2

System area - - - -

Phase 1 current waveform data 0 R - 4

System area - - - -

Phase 3 current waveform data 0 R - 6

*1: Even if the power failure is restored, data is held because data is backed up by the nonvolatile memory. *2: For the procedure for using the test mode, refer to “3.4.5”.

*3: Storage addresses for each 300 waveform data are allocated to the buffer memory. Practically, waveform

data being sampled during period of measured data acquisition clock is stored, 0 is stored to the remaining address.

59

Section 5 BUFFER MEMORY

Primary voltage (Un\G1)

of VT (Un\G5)

of VT (Un\G6)

Setting value

Description

0

Any voltage

1 - 6600

1 - 220

1

110 V (Direct connection) *1

2

220 V (Direct connection)

4

220/110 V

5

440/110 V

6

690/110 V

7

1100/110 V

8

2200/110 V

9

3300/110 V

10

6600/110 V

RE81WH

5.2 Configurable sections (Un\G0 - Un\G99)

5.2.1 Phase wire system (Un\G0) Phase wire system for target electric circuits is configured below.

(1) Setting procedure

(a) Set the phase wire in the buffer memory. Setting range is as follows.

Setting value Description

1 single-phase 2-wire

2 single-phase 3-wire

3 three-phase 3-wire

(b) Turn Operating condition setting request (Yn9) from OFF to ON to enable the setting.

(Refer to “4.2.2(5)”.)

(2) Default value

It is set to [3： three-phase 3-wire].

5.2.2 Primary voltage (Un\G1), Primary voltage of VT (Un\G5), Secondary voltage of VT (Un\G6) Primary voltage (Un\G1):

Set the primary voltage of the target electric circuit.

Primary voltage of VT (Un\G5):

When using a voltage transformer that is not in the primary voltage (Un\G1) setting, set the voltage of the primary side of voltage transformer.

Secondary voltage of VT (Un\G6):

When using a voltage transformer that is not in the primary voltage (Un\G1) setting, set the voltage of the secondary side of voltage transformer.

(1) Setting procedure

(a) Set the primary voltage, primary voltage of VT and secondary voltage of VT in the buffer memory.

Setting range is as follows. When setting the value of primary voltage other than "1, 2, 4 to 10", set to “0: Any voltage” this setting, and set primary / secondary voltage of VT (Un\G5 / Un\G6). When the value of this setup is set as “1, 2, 4 to 10”, primary/ secondary voltage of VT are disabled.

Primary voltage

Secondary voltage

*1: When the wiring system is single-phase 3-wire, you can only set “1: 110V (Direct connection)” for

the primary voltage (Un\G1).

60

0 - 6600

(However, this

setting is disabled)

0 - 220

(However, this setting

is disabled)

Section 5 BUFFER MEMORY

(Un\G2)

(Un\G7)

(Un\G2)

(Un\G7)

value

0

Any current

1～6000

EMU-CT5-A

516

100/5A

1

50A

EMU-CT50-A

517

120/5A

2

100A

EMU-CT100-A

518

150/5A

3

250A

EMU-CT250-A

519

200/5A

4

400A

EMU-CT400-A

520

250/5A

5

600A

EMU-CT600-A

521

300/5A

501

5/5A

522

400/5A

502

6/5A

523

500/5A

503

7.5/5A

524

600/5A

504

8/5A

525

750/5A

505

10/5A

526

800/5A

506

12/5A

527

1000/5A

507

15/5A

528

1200/5A

508

20/5A

529

1500/5A

509

25/5A

530

1600/5A

510

30/5A

531

2000/5A

511

40/5A

532

2500/5A

512

50/5A

533

3000/5A

513

60/5A

534

4000/5A

514

75/5A

535

5000/5A

515

80/5A

536

6000/5A

RE81WH

(b) Turn Operating condition setting request (Yn9) from OFF to ON to enable the setting.

(Refer to “4.2.2(5)”.)

(2) Default value

Primary voltage (Un\G1) is set to [2: 220 V (Direct connection)]. Primary voltage of VT (Un\G5) is set to [0]. Secondary voltage of VT (Un\G6) is set to [0].

5.2.3 Primary current (Un\G2), Primary current of CT (Un\G7) Primary current (Un\G2) set the primary current of the target electric circuit. Primary current of CT (Un\G7) set the current of the primary side of current transformer When using primary current of current transformer that is not in the primary current (Un\G2). Secondary current of CT cannot be set, since secondary current of CT is fixed to 5A.

(1) Setting procedure

(a) Set the primary current and primary current of CT in the buffer memory.

Setting range is as follows: Please choose the settings to match the current sensor to be used. When set other than "1 to 5, 501 to 536, 1001 to 1003, 1501 to 1536" the value of the primary current, set to “0: Any current (EMU-CT5-A)” or “1000: Any current (EMU2-CT5)” primary current (Un\G2), and set primary current of CT (Un\G7). When the value of primary current (Un\G2) setup is set as "1 to 5, 501 to 536, 1001 to 1003, 1501 to 1536", primary current of CT is disabled.

Table 5.2.3-1 Setting value of Primary current and primary current of CT (1/2)

Primary current

Setting

Description

Primary

current of

CT

Current sensor

Primary current

Setting

Description

Primary

current of

CT

Current sensor

0～6000

(However,

this setting

is disabled)

EMU-CT5-A

61

0～6000

(However,

this setting

is disabled)

EMU-CT5-A

Section 5 BUFFER MEMORY

(Un\G2)

(Un\G7)

(Un\G2)

(Un\G7)

value

1000

Any current

1～6000

EMU2-CT5

1516

100/5A

1001

50A

EMU-CT50

1517

120/5A

1002

100A

EMU-CT100

1518

150/5A

1003

250A

EMU-CT250

1519

200/5A

1501

5/5A

1520

250/5A

1502

6/5A

1521

300/5A

1503

7.5/5A

1522

400/5A

1504

8/5A

1523

500/5A

1505

10/5A

1524

600/5A

1506

12/5A

1525

750/5A

1507

15/5A

1526

800/5A

1508

20/5A

1527

1000/5A

1509

25/5A

1528

1200/5A

1510

30/5A

1529

1500/5A

1511

40/5A

1530

1600/5A

1512

50/5A

1531

2000/5A

1513

60/5A

1532

2500/5A

1514

75/5A

1533

3000/5A

1515

80/5A

1534

4000/5A

1535

5000/5A

1536

6000/5A

Table 5.2.3-1 Setting value of Primary current and primary current of CT (2/2)

Primary current

Setting

Description

Primary

current of

CT

Current sensor

RE81WH

Primary current

Setting

Description

Primary

current of

CT

Current sensor

0～6000

(However,

this setting

is disabled)

EMU2-CT5

(b) Operating condition setting request (Yn9) from OFF to ON to enable the setting.

(Refer to “4.2.2(5)”)

(2) Default value

Primary current (Un\G2) is set to “2: 100 A”.

Primary current of CT (Un\G7) is set to “0”.

0～6000

(However,

this setting

is disabled)

EMU2-CT5

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Section 5 BUFFER MEMORY

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5.2.4 Current demand time (Un\G3) Set a time duration for which the moving average of current demand value is calculated from the measured current value. If current demand time is set short, the response to change of current will be quick; however, the fluctuation

range may be too large. Adjust the duration according to the load and purposes.

(1) Setting procedure

(a) Set current demand time in the buffer memory

・Configurable range: 0 to 1800 (seconds) ・Set the value in seconds. ・If this setting is set to 0 second, the current demand will be the same value as the current.

(b) Operating condition setting request (Yn9) from OFF to ON to enable the setting.

(Refer to “4.2.2(5)”.)

(2) Default value

It is set to [120 seconds].

5.2.5 Electric power demand time (Un\G4) Set a time duration for which the moving average of electric power demand value is calculated from the measured electric power value. If electric power demand time is set short, the response to change of power will be quick; however, the

fluctuation range may be too large. Adjust the duration according to the load and purposes.

(1) Setting procedure

(a) Set electric power demand time in the buffer memory.

・Configurable range: 0 to 1800 (seconds) ・Set the value in seconds. ・If this setting is set to 0 second, the electric power demand will be the same value as the electric power

demand.

(b) Operating condition setting request (Yn9) from OFF to ON to enable the setting.

(Refer to “4.2.2(5)”.)

(2) Default value

It is set to [120 seconds].

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Section 5 BUFFER MEMORY

2

Current demand lower limit

3

Voltage upper limit

4

Voltage lower limit

5

Electric power demand upper limit

6

Electric power demand lower limit

7

Power factor upper limit

8

Power factor lower limit

Measuring item of monitoring target

single-phase 2-wire

single-phase 3-wire

three-phase 3-wire

1-phase current demand

*1

1 - 2 line voltage

*1

Electric power demand

lower limit

Power factor upper limit

Power factor lower limit

Alarm judgment conditions

occurrence

Upper

(Delayed)

Lower

(Forward)

100.0

-99.9

99.9

99.8

-99.8

-0.1

-0.2

0.2

0.1

0.0

5.2.6 Alarm 1 monitoring factor (Un\G11), alarm 2 monitoring factor (Un\G21) Set which measuring item will be monitored for the upper/lower limit alarm. Alarm 1 and 2 operate independently.

(1) Setting procedure

(a) Set the item for alarm 1 and 2 in the buffer memory. Setting range is as follows.

Setting value Description

0 No monitoring

1 Current demand upper limit

RE81WH

(b) Measuring items for the monitoring target are as follows.

Description

Current demand upper limit

Current demand lower limit

Voltage upper limit Voltage lower limit

upper limit

Electric power demand

1-phase current demand

1 - 2 line voltage

1-phase current demand 3-phase current demand *1

1 - 2 line voltage 2 - 3 line voltage *1

Electric power demand

Power factor *2

2-phase current demand 3-phase current demand

2 - 3 line voltage 3 - 1 line voltage

*1: When multiple number of measuring items are targeted for monitoring, the alarm judgment

condition will be as following.

Upper/lower limits

Current demand upper limit

Voltage upper limit

Current demand lower limit

Voltage lower limit

Condition for occurrence

Any one of alarm monitoring factor exceeds the alarm

monitoring value.

Any one of alarm monitoring

factor go below the alarm monitoring value.

Condition for non-

All alarm item go below the alarm monitoring value.

All alarm item exceeds the

alarm monitoring value.

*2: The idea of upper and lower for PF upper / lower limit judgment is shown below.

64

Section 5 BUFFER MEMORY

Current demand lower limit

Voltage upper limit

Electric power demand lower limit

(×10-3kW)

Power factor upper limit

Power factor lower limit

RE81WH

(c) Operating condition setting request (Yn9) from OFF to ON to enable the setting.

(Refer to “4.2.2(5)”.)

(2) Default value

It is set to [0: not monitoring].

5.2.7 Alarm 1 monitoring value (Un\G12, 13), alarm 2 monitoring value (Un\G22, 23) Set the upper/lower limit monitoring value for the target that was set in alarm 1 monitoring factor and alarm 2

monitoring factor.

(1) Setting procedure

(a) Set the monitoring values for alarm 1 and 2 in the buffer memory.

Configurable range: -2147483648 to 2147483647 * The unit of the setting value is the same as below which was used for the measuring value of the

monitored target configured in alarm 1 monitoring factor and alarm 2 monitoring factor.

Alarm 1 monitoring factor Alarm 2 monitoring factor

Current demand upper limit

Unit of alarm 1 monitoring value

and alarm 2 monitoring value

×10-3A

-3

×10

Voltage lower limit

Electric power demand upper limit

V

W

×10-3%

(b) Operating condition setting request (Yn9) from OFF to ON to enable the setting.

(Refer to “4.2.2(5)”.)

(2) Default value

It is set to [0].

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Section 5 BUFFER MEMORY

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5.2.8 Alarm 1 reset method (Un\G14), Alarm 2 reset method (Un\G24) Set the reset method of the alarm1 and alarm 2. For differences in behavior of alarm monitoring for different reset methods, refer to “3.4.4(3)”.

(1) Setting procedure

(a) Set the reset method for alarm 1 and 2 in the buffer memory. Setting range is as follows.

Setting value Description

0 Self-retention

1 Self-reset

(b) Operating condition setting request (Yn9) from OFF to ON to enable the setting.

(Refer to “4.2.2(5)”.)

(2) Default value

It is set to [0: Self-retention].

5.2.9 Alarm 1 delay time (Un\G15), alarm 2 delay time (Un\G25) Set the alarm delay time for the alarm 1 and alarm 2. In a state that the delay time is set as any value other than “0” second, if a state where the value exceeds

alarm monitoring value continues longer than the delay time, no alarm will be generated. (In a state that the delay time is set as any value other than “0” second, if a state where the value exceeds alarm monitoring value

continues shorter than the delay time, no alarm will be generated.) For detailed behavior, refer to “3.4.4(3)”.

(1) Setting procedure

(a) Set the delay time for alarm 1 and alarm 2 in the buffer memory.

・Setting range: 0 to 300 (seconds) ・Set the value in seconds. ・If this setting is set to 0 second, Alarm occurrence when measured value exceeds or goes under the

alarm 1 monitoring value or alarm 2 monitoring value.

(b) Operating condition setting request (Yn9) from OFF to ON to and enable the setting.

(Refer to “4.2.2(5)”.)

(2) Default value

It is set to [0 seconds].

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Section 5 BUFFER MEMORY

Setting value

Description

0

No set

1

Electric energy (consumption)

2

Electric energy (regeneration)

3

Reactive energy (consumption lag)

積算値セット要求(Y3 )

積算値セット完了フラグ(X3)

ON

OFF

ON

OFF

RE81WH

5.2.10 Integrated value setting target (Un\G51), Integrated value setting value (Un\G52, 53) Set any value to the integrated value.

(1) Setting procedure

(a) Set the integrated value setting target (Un\G51) in the buffer memory. Setting range is as follows.

(b) Set the integrated value setting value in the buffer memory.

・Setting range: 0 to 999999999 * The unit used for the setting value is the same as that used for the electric energy and reactive energy

that are output to the buffer memory. For details, refer to “5.3.2”.

(c) Turn Integrated value set request (YnC) from OFF to ON to enable the setting. (d) After checking that integrated value set completion flag (XnC) turns ON and setting is completed, set

the integrated value set request (YnC) to OFF. After detected that the integrated value set request (YnC) turns OFF, the integrated value set completion flag (XnC) turns OFF.

Integrated value set request (YnC)

Integrated value set completion flag (XnC)

Figure 5.2.10 Setting procedure for integrated value

(2) Default value

Integrated value setting target (Un\G51) is set to [0: No set]. Integrated value setting value (Un\G52, 53) is set to [0].

67

Section 5 BUFFER MEMORY

Setting value

Description

11

Current demand

12

Voltage

13

Electric power demand

14

Power factor

19

All of the above

積算値セット要求(Y3 )

積算値セット完了フラグ(X3)

ON

OFF

ON

OFF

RE81WH

5.2.11 Max./min. values clear target (Un\G56) Set to clear the data by max./min. clear request.

(1) Setting procedure

(a) Set the max./min. values clear target(Un\G56) in the buffer memory. Setting range is as follows.

Others Do not clear

(b) Turn Max./min. values clear request (YnD) from OFF to ON to enable the setting.

(c) After checking that Max./min. values clear completion flag (XnD) turns ON and clear is completed, set

the Max./min. values clear request (YnD) to OFF. When detecting that the Max./min. values clear request (YnD) turns OFF, the Max./min. values clear completion flag (XnD) turns OFF.

Max./min. values clear request (YnD)

Max./min. values clear completion flag (XnD)

Figure 5.2.11 Max./min. values clear procedure

(2) Default value

It is set to “0: Do not clear”.

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Section 5 BUFFER MEMORY

acquisition clock

RE81WH

5.2.12 Period of measured data acquisition clock (Un\G60, 61) Set a data update period. Period of measured data acquisition clock (Xn8) is the data update period. If period of measured data acquisition clock is 10ms, measured data acquisition clock (Xn8) operates at a

cycle of 10ms. * For Measured data acquisition clock (Xn8), refer to “4.2.1(8)”.

(1) Setting procedure

(a) Set period of measured data acquisition clock (Un\G60, 61) in the buffer memory.

・Setting range: 10 to 10000 (ms) ・Can be set in 10ms increments. (If a value that is not divisible by 10 is set, the first digit is rounded up.)

<Example> When the period of measured data acquisition clock is 123 ms:

Period of measured data acquisition clock = 123 ms / 10 ms = quotient 12 + remainder 3 ms Thus, because it is not divisible by 10, the first digit is rounded up and 130 is set.

(b) Turn Operating condition setting request (Yn9) from OFF to ON to enable the setting.

(Refer to “4.2.2(5)”.)

(2) Precautions for setting

The scan time should be less than OFF time of the measured data acquisition clock (Xn8) in order to detect “OFF → ON” of the measured data acquisition clock.

Since the OFF time varies according to the period of measured data acquisition clock, pay attention to set the scan time of ladder program as below.

Period of measured data

Scan time of ladder program

10ms Less than 2ms

20ms to10000ms 2/5 of the period of measured data acquisition clock

Refer to “” for details.

(3) Default value

It is set to “10ms”.

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Section 5 BUFFER MEMORY

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5.3 Measurement sections (Un\G100 - Un\G2999)

This product divides the measuring data into the “Data” and “Multiplying factor”, and output them to Buffer memory. Actual measuring data is obtained by the following formula.

n

Measuring data = Data × 10

(Example) Average current The values output to the Buffer memory are as follows when average current is measured 123.456A. Data (Un\G218, 219): 123456 Multiplying factor (Un\G200): -3 The actual measuring data is obtained from the value of Buffer memory as follows. Measuring data = Data × 10

= 123.456A

5.3.1 Multiplying factor of electric energy and reactive energy (Un\G100) Multiplying factor of electric energy and reactive energy are stored.

How to determine the multiplying factor, refer to “3.4.1(3)”.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -5 to -1

(b) Update timing

It will be updated when phase wire system (Un\G0), primary voltage (Un\G1), and primary current (Un\G2), primary voltage of VT (Un\G5), secondary voltage of VT (Un\G6), primary current of CT (Un\G7) are set.

(Multiplying factor is n).

-3

70

Section 5 BUFFER MEMORY

Multiplying factor of electric

(Un\G100)

-5

10-5kWh

-4

10-4kWh

-3

10-3kWh

-2

10-2kWh

-1

10-1kWh

(Un\G100)

-3

10-3kvarh

-2

10-2kvarh

-1

10-1kvarh

RE81WH

5.3.2 Electric energy (consumption) (Un\G102, 103), electric energy (regeneration) (Un\G104, 105) Stores the electric energy of the consumption side and the regeneration side will be stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 999999999

* When the stored data exceeds 999999999, stored data turns to 0 and continues measuring. * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

Unit can be determined by multiplying factor of electric energy and reactive energy (Un\G100), as shown below.

energy and reactive energy

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.3.3 Reactive energy (consumption lag) (Un\G106, 107) Delayed consumption of the reactive energy is stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 999999999 * When the stored data exceeds 999999999, stored data turns to 0 and continues measuring.

* Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

Unit can be determined by the multiplying factor of electric energy and reactive energy (Un\G100), as shown below.

Multiplying factor of electric energy and reactive energy

Unit

× × × × ×

Unit

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

-5 ×10-5kvarh

-4 ×10-4kvarh

× × ×

71

Section 5 BUFFER MEMORY

(Un\G100)

RE81WH

5.3.4 Periodic electric energy 1 (Un\G114, 115), periodic electric energy 2 (Un\G116, 11 7) Stores the periodic electric energy 1 and periodic electric energy 2. The periodic electric energy of the consumption side is measured. For specific usage procedures for the periodic electric energy, refer to “3.4.2”.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 999999999 * When the stored data exceeds 999999999, stored data turns to 0 and continues measuring.

* Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

Unit can be determined by the multiplying factor of electric energy and reactive energy (Un\G100), as shown below.

Multiplying factor of electric

energy and reactive energy

Unit

-5 ×10-5kWh

-4 ×10-4kWh

-3 ×10-3kWh

-2 ×10-2kWh

-1 ×10-1kWh

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.3.5 Multiplying factor of current (Un\G200) The multiplying factor of the electric current is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

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Section 5 BUFFER MEMORY

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5.3.6 Phase 1 current (Un\G202, 203), Phase 2 current (Un\G204, 205), Phase 3 current (Un\G206, 207)

The electric current (present value) of each phase is stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 99999990 (0 to 99999.990 A) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

A *Unit is fixed.

×10

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.3.7 Phase 1 current demand (Un\G210, 211), Phase 2 current demand (Un\G212, 213), Phase 3 current demand (Un\G214, 215)

Stores the electric current (present value) at each phase that is measured based on the moving average for the duration of time configured in the electric current demand time (Un\G3).

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 99999990 (0 to 99999.990 A) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

A *Unit is fixed.

×10

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.3.8 Average current (Un\G218, 219)

Stores the Average current. For procedure for storing the Average current using phase wire system, refer to “3.4.1(2)”.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range:0 to 99999990 (0 to 99999.990 A) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

×10

A *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

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Section 5 BUFFER MEMORY

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5.3.9 Maximum current demand (Un\G220, 221), minimum current demand (Un\G228, 229)

Stores the max./min. values of the electric current demand among phases.

For procedure for storing the max./min. the electric current demand using phase wire system, refer to “3.4.1(2)”.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 99999990 (0 to 99999.990 A) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

A *Unit is fixed.

×10

(c) Update timing

It will be updated every measuring cycle if it exceeds the current demand max. value or goes under the

current demand min. value. For measuring cycle, refer to “5.2.12”.

5.3.10 Year of time of max. current demand (Un\G222), month and day of time of max. current demand (Un\G223), hour and minute of time of max. current demand (Un\G224), second and day of the week of time of max. current demand (Un\G225), millisecond of time of max. current demand (Un\G226), year of time of min. current demand (Un\G230), month and day of time of min. current demand (Un\G231), hour and minute of time of min. current demand (Un\G232), second and day of the week of time of min. current demand (Un\G233) millisecond of time of min. current demand (Un\G234)

Stores year, month, day, hour, minute, second, day of the week and millisecond of time of maximum value of electric current demand (Un\G220, 221) and minimum value of electric current demand (Un\G228, 229) were updated.

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Section 5 BUFFER MEMORY

b15 b12 b11 b8 b7 b4 b3 b0

～

b15 b12 b11 b8 b7 b4 b3 b0

～

Month

b15 b12 b11

b8 b7

b4 b3 b0

～

b15 b12 b11 b8 b7 b4 b3 b0

～

b15

b12 b11 b8 b7 b4 b3 b0

～

(1) Details of stored data

(a) Storage format

As indicated below, Data is stored as BCD code in the buffer memory.

Buffer memory address Storage format

Un\G222

/Un\G230

Yea r

Un\G223

/Un\G231

Day

Un\G224

/Un\G232

Hour Minute

RE81WH

e.g.) Year 2010

2010h

e.g.) July 30

0730h

e.g.) 10:35

1035h

e.g.) 48 sec Friday

4805h

Day of the week

0 Sunday

1 Monday

2 Tuesday

3 Wednesday

4 Thursday

5 Friday

6 Saturday

Un\G225

/Un\G233

Second 0 fixed

e.g.) 172 millisecond

Un\G226

172h

/Un\G234

Millisecond 0 fixed

(b) Update timing

It will be updated every measuring cycle if it exceeds the current demand max. value or goes under the current demand min. value.

For measuring cycle, refer to “5.2.12”.

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Section 5 BUFFER MEMORY

5.3.11 Multiplying factor of voltage (Un\G300)

The multiplying factor of the electric voltage is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

5.3.12 1-2 voltage (Un\G302, 303), 2-3 voltage (Un\G304, 305), 3-1 voltage (Un\G306, 307)

The electric voltage between every combination of wires (present value) is stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 99999900 (0 to 99,999.900 V)

* Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

×10

V *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.3.13 Average voltage (Un\G314, 315)

Stores the Average voltage. For procedure for storing the Average voltage using phase wire system, refer to “3.4.1(2)”.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 99999900 (0 to 99,999.900 V) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

×10

V *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

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Section 5 BUFFER MEMORY

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5.3.14 Maximum voltage (Un\G320, 321), minimum voltage (Un\G328, 329)

Stores the max./min. values of the voltage among in-between wires. For procedure for storing the max./min. voltage using phase wire system, refer to “3.4.1(2)”.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 99999900 (0 to 99,999.900 V) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

×10

V *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle if it exceeds the voltage max. value or goes under the voltage

min. value. For measuring cycle, refer to “5.2.12”.

5.3.15 Year of time of max. voltage (Un\G322), month and day of time of max. voltage (Un\G323), hour and minute of time of max. voltage (Un\G324), second and day of the week of time of max. voltage (Un\G325), millisecond of time of max. voltage (Un\G326), year of time of min. voltage (Un\G330), month and day of time of min. voltage (Un\G331), hour and minute of time of min. voltage (Un\G332), second and day of the week of time of min. voltage (Un\G333), millisecond of time of min. voltage (Un\G334)

Stores year, month, day, hour, minute, second, day of the week and millisecond of time of maximum voltage (Un\G320, 321) and minimum voltage (Un\G328, 329) were updated.

77

Section 5 BUFFER MEMORY

b15 b12 b11 b8 b7 b4 b3 b0

～

b15 b12 b11 b8 b7 b4 b3 b0

～

Month

b15 b12 b11

b8 b7

b4 b3 b0

～

b15 b1 2 b11 b8 b7 b4 b3 b0

～

e.g.) 48 sec Friday

b15 b12 b11

b8 b7

b4 b3

b0

～

(1) Details of stored data

(a) Storage format

As indicated below, Data is stored as BCD code in the buffer memory.

Buffer memory address Storage format

Un\G322

/Un\G330

Yea r

Un\G323

/Un\G331

Day

Un\G324

/Un\G332

Hour Minute

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e.g.) Year 2010

2010h

e.g.) July 30

0730h

e.g.) 10:35

1035h

4805h

Day of the week

0 Sunday

1 Monday

2 Tuesday

3 Wednesday

4 Thursday

5 Friday

6 Saturday

Un\G325

/Un\G333

Second 0 fixed

e.g.) 172 millisecond

Un\G326

172h

/Un\G334

Millisecond 0 fixed

(b) Update timing

It will be updated every measuring cycle if it exceeds the voltage max. value or goes under the voltage min. value.

For measuring cycle, refer to “5.2.12”.

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Section 5 BUFFER MEMORY

90°

0°

270°

180°

＋

－－＋

Consumpt ion

lag

Consumpt ion

lead

Regeneration lead

Regeneration lag

5.3.16 Multiplying factor of electric power (Un\G400)

The multiplying factor of electric power is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

5.3.17 Electric power (Un\G402, 403)

The electric power (present value) is stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory.

If the power is negative, represents the regenerative power. ・Data range:-999999999 to 999999999 (-999999.999 to 999999.999 kW)

* Restrictions for measured data including resolution and measuring range, refer to “3.4.1”. * The sign of the data is as shown in the following figure.

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(b) Unit

-3

×10

kW *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

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Section 5 BUFFER MEMORY

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5.3.18 Electric power demand (Un\G404, 405)

Stores the electric power that is measured based on the moving average for the duration of time configured in the electric power demand time (Un\G4).

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. If the power is negative, represents the regenerative power. ・Data range: -999999999 to 999999999 (-999999.999 to 999999.999 kW) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

kW *Unit is fixed.

×10

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.3.19 Maximum electric power demand (Un\G420, 421), minimum electric power demand (Un\G428, 429)

Stores the max./min. values of the electric power demand.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. If the power is negative, represents the regenerative power. ・Data range: -999999999 to 999999999 (-999999.999 to 999999.999 kW) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

kW *Unit is fixed.

×10

(c) Update timing

It will be updated every measuring cycle if it exceeds the electric power demand max. value or goes under

the electric power demand min. value. For measuring cycle, refer to “5.2.12”.

5.3.20 Yea r of time of max. electric power demand (Un\G422), month and day of time of max. electric power demand (Un\G423), hour and minute of time of max. electric power demand (Un\G424), second and day of the week of time of max. electric power demand (Un\G425), millisecond of time of max. electric power demand (Un\G426), year of time of min. electric power demand (Un\G430), month and day of time of min. electric power demand (Un\G431), hour and minute of time of min. electric power demand (Un\G432), second and day of the week of time of min. electric power demand (Un\G433), millisecond of time of min. electric power demand (Un\G434)

Stores year, month, day, hour, minute, second, day of the week and millisecond of time of maximum value of electric power demand (Un\G420, 421) and minimum value of electric power demand (Un\G428, 429) were updated.

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Section 5 BUFFER MEMORY

b15 b12 b11 b8 b7 b4 b3 b0

～

b15 b12 b11 b8 b7 b4 b3 b0

～

Month

b15 b12 b11

b8 b7

b4 b3 b0

～

b15 b12 b11 b8 b7

b4 b3 b0

～

e.g.) 48 sec Friday

b15 b12 b11

b8 b7

b4 b3

b0

～

(1) Details of stored data

(a) Storage format

As indicated below, Data is stored as BCD code in the buffer memory.

Buffer memory address Storage format

Un\G422

/Un\G430

Yea r

Un\G423

/Un\G431

Day

Un\G424

/Un\G432

Hour Minute

RE81WH

e.g.) Year 2010

2010h

e.g.) July 30

0730h

e.g.) 10:35

1035h

4805h

Day of the week

0 Sunday

1 Monday

2 Tuesday

3 Wednesday

4 Thursday

5 Friday

6 Saturday

Un\G425

/Un\G433

Second 0 fixed

e.g.) 172 millisecond

Un\G426

172h

/Un\G434

Millisecond 0 fixed

(b) Update timing

It will be updated every measuring cycle if it exceeds the electric power demand max. value or goes under the electric power demand min. value.

For measuring cycle, refer to “5.2.12”.

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Section 5 BUFFER MEMORY

90°

0°

270°

180°

＋

－

Consumpt ion

lag

Consumpt ion

lead

Regeneration lead

Regeneration lag

＋

－

5.3.21 Multiplying factor of reactive power (Un\G500)

The multiplying factor of reactive power is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

5.3.22 Reactive power (Un\G502, 503)

The reactive power is stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. ・Data range: -999999999 to 999999999 (-999999.999 to 999999.999 kvar) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

* The sign of the data is as shown in the following figure.

RE81WH

(b) Unit

-3

×10

kvar *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.3.23 Multiplying factor of apparent power (Un\G600)

The multiplying factor of apparent power is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

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Section 5 BUFFER MEMORY

90°

0°

270°

180°

＋

－

Consumpt ion

lag

Consumpt ion

lead

Regeneration lead

Regeneration lag

＋

－

5.3.24 Apparent power (Un\G602, 603)

The apparent power is stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 999999999 (0.000 to 999999.999 kVA)

* Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

×10

kVA *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.3.25 Multiplying factor of power factor (Un\G700)

The multiplying factor of the power factor is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

5.3.26 Power factor (Un\G702, 703)

Stores the power factor.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. ・Data range: -100000 to 100000 (-100.000 to 100.000%) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

* The sign of the data is as shown in the following figure.

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(b) Unit

-3

×10

% *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

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Section 5 BUFFER MEMORY

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5.3.27 Maximum power factor (Un\G720, 721), minimum power factor (Un\G728, 729)

The max./min. power factors are stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. ・Data range: -100000 to 100000 (-100.000 to 100.000%)

* For the resolution, refer to “3.4.1”.

(b) Unit

-3

×10

% *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle if it exceeds the power factor max. value or goes under the power factor min. value.

For measuring cycle, refer to “5.2.12”.

5.3.28 Year of time of max. power factor (Un\G722), month and day of time of max. power factor (Un\G723), hour and minute of time of max. power factor (Un\G724), second and day of the week of time of max. power factor (Un\G725), millisecond of time of max. power factor (Un\G726), year of time of min. power factor (Un\G730), month and day of time of min. power factor (Un\G731), hour and minute of time of min. power factor (Un\G732), second and day of the week of time of min. power factor (Un\G733), millisecond of time of min. power factor (Un\G734)

Stores year, month, day, hour, minute, second, day of the week and millisecond of time of maximum power factor (Un\G720, 721) and minimum power factor (Un\G728, 729) were updated.

84

Section 5 BUFFER MEMORY

b15 b12 b11 b8 b7 b4 b3 b0

～

b15 b12 b11 b8 b7 b4 b3 b0

～

Month

b15 b12 b11

b8 b7

b4 b3 b0

～

b15 b12

b11 b8

b7 b4 b3 b0

～

e.g.) 48 sec Friday

b15

b12 b11 b8 b7 b4 b3 b0

～

(1) Details of stored data

(a) Storage format

As indicated below, Data is stored as BCD code in the buffer memory.

Buffer memory address Storage format

Un\G722

/Un\G730

Yea r

Un\G723

/Un\G731

Day

Un\G724

/Un\G732

Hour Minute

RE81WH

e.g.) Year 2010

2010h

e.g.) July 30

0730h

e.g.) 10:35

1035h

4805h

Day of the week

0 Sunday

1 Monday

2 Tuesday

3 Wednesday

4 Thursday

5 Friday

6 Saturday

Un\G725

/Un\G733

Second

0 fixed

e.g.) 172 millisecond

Un\G726

172h

/Un\G734

Millisecond 0 fixed

(b) Update timing

It will be updated every measuring cycle if it exceeds the power factor max. value or goes under the power factor min. value.

For measuring cycle, refer to “5.2.12”.

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Section 5 BUFFER MEMORY

5.3.29 Multiplying factor of frequency (Un\G800)

The multiplying factor of the frequency is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

5.3.30 Frequency (Un\G802, 803)

Stores the frequency.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 999900 (0 to 999.900 Hz) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

×10

Hz *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.3.31 Multiplying factor of harmonic voltage (Un\G1000)

The multiplying factor of the harmonic voltage is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

RE81WH

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Section 5 BUFFER MEMORY

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5.3.32 1-2 harmonic voltage (Un\G1002 - Un\G1021), 2-3 harmonic voltage (Un\G1030 - Un\G1049)

Stores the harmonic voltage RMS between each line. (1st, 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, and 19th

are stored.)

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 99999999 (0 to 99999.999 V)

* Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

V *Unit is fixed.

×10

(c) Update timing

It will be update about every second. For details, refer to “4.2.1(7)”.

5.3.33 1-2 harmonic voltage (Total) (Un\G1022, 1023), 2-3 harmonic voltage (Total) (Un\G1050, 1051)

Stores the harmonic total voltage RMS between each line.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. ・Data range: 0 to 99999999 (0 to 99999.999 V) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

V *Unit is fixed.

×10

(c) Update timing

It will be update about every second. For details, refer to “4.2.1(7)”.

5.3.34 Multiplying factor of harmonic current (Un\G1200)

The multiplying factor of the harmonic current is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

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Section 5 BUFFER MEMORY

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5.3.35 Phase 1 harmonic current (Un\G1202 - Un\G1221), Phase 3 harmonic current (Un\G1260 - Un\G1279)

Stores the harmonic current RMS between each phase. (1st, 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, and 19th

are stored.)

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 99999999 (0 to 99999.999 A)

* Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

A *Unit is fixed.

×10

(c) Update timing

It will be update about every second. For details, refer to “4.2.1(7)”.

5.3.36 Phase 1 harmonic current (Total) (Un\G1222, 1223), phase 3 harmonic current (Total) (Un\G1280, 1281)

Stores the harmonic total current RMS between each phase.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit unsigned binary in the buffer memory. ・Data range: 0 to 99999999 (0 to 99999.999 A) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-3

A *Unit is fixed.

×10

(c) Update timing

It will be update about every second. For details, refer to “4.2.1(7)”.

5.3.37 Multiplying factor of voltage harmonic distortion (Un\G1400)

The multiplying factor of the harmonic voltage distortion ratio is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -1 (fixed)

(b) Update timing

Because it is fixed at -1, there is no update.

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Section 5 BUFFER MEMORY

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5.3.38 1-2 voltage harmonic distortion (Un\G1402 - Un\G1410), 2-3 voltage harmonic distortion (Un\G1420 - Un\G1428)

Stores the harmonic voltage distortion ratio between each line. (3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, and

19th are stored.)

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit unsigned binary in the buffer memory. ・Data range: 0 to 9999 (0 to 999.9 %)

* Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-1

% *Unit is fixed.

×10

(c) Update timing

It will be update about every second. For details, refer to “4.2.1(7)”.

5.3.39 1-2 voltage harmonic distortion (Total) (Un\G1411), 2-3 voltage harmonic distortion (Total) (Un\G1429)

Stores the harmonic total voltage distortion ratio between each line.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit unsigned binary in the buffer memory. ・Data range: 0 to 9999 (0 to 999.9 %) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-1

% *Unit is fixed.

×10

(c) Update timing

It will be update about every second. For details, refer to “4.2.1(7)”.

5.3.40 Multiplying factor of current harmonic distortion (Un\G1600)

The multiplying factor of the harmonic current distortion ratio is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -1 (fixed)

(b) Update timing

Because it is fixed at -1, there is no update.

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Section 5 BUFFER MEMORY

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5.3.41 Phase 1 current harmonic distortion (Un\G1602 - Un\G1610), phase 3 current harmonic distortion (Un\G1640 - Un\G1648)

Stores the harmonic current distortion ratio between each phase. (3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, and

19th are stored.)

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit unsigned binary in the buffer memory. ・Data range: 0 to 9999 (0 to 999.9 %)

* Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-1

% *Unit is fixed.

×10

(c) Update timing

It will be update about every second. For details, refer to “4.2.1(7)”.

5.3.42 Phase 1 current harmonic distortion (Total) (Un\G1611), phase 3 current harmonic distortion (Total) (Un\G1649)

Stores the harmonic total current distortion ratio between each phase.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit unsigned binary in the buffer memory. ・Data range: 0 to 9999 (0 to 999.9 %) * Restrictions for measured data including resolution and measuring range, refer to “3.4.1”.

(b) Unit

-1

% *Unit is fixed.

×10

(c) Update timing

It will be update about every second. For details, refer to “4.2.1(7)”.

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Section 5 BUFFER MEMORY

5.4 Common sections (Un\G3000 - Un\G4999)

5.4.1 Latest error code (Un\G3000)

The latest error code that is detected with this module will be stored.

For the list of error codes, refer to “8.1 List of error codes”.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit unsigned binary in the buffer memory. ・Data range: 0000h (normal), 0001h to FFFFh (error code)

(b) Update timing

It will be updated at the time of error occurrence and error recovery.

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Section 5 BUFFER MEMORY

b15 b12 b11 b8 b7 b4 b3 b0

～

e.g.) Year 2010

b15 b12 b11 b8 b7 b4 b3 b0

～

Month

b15 b12 b11 b8 b7 b4 b3 b0

～

b15 b12 b11 b8 b7 b4 b3 b0

～

e.g.) 48 sec Friday

b15

b12 b11 b8 b7 b4 b3

b0

～

RE81WH

5.4.2 Year of time of the error (Un\G3001), month and day of time of error (Un\G3002), hour and minute of time of error (Un\G3003), second and day of the week of time of error (Un\G3004), millisecond of time of error (Un\G3005)

The year, month, day, hour, minute, second, day of the week and millisecond of time of the error will be stored.

(1) Details of stored data

(a) Storage format

As indicated below, Data is stored as BCD code in the buffer memory.

Buffer memory address Storage format

Un\G3001

Un\G3002

Un\G3003

Un\G3004

Yea r

Day

Hour Minute

Second 0 fixed

2010h

e.g.) July 30

0730h

e.g.) 10:35

1035h

4805h

Day of the week

0 Sunday

1 Monday

2 Tuesday

3 Wednesday

4 Thursday

5 Friday

6 Saturday

Un\G3005

(b) Update timing

It will be updated at the time of error occurrence and error recovery.

e.g.) 172 millisecond

172h

Millisecond 0 fixed

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Section 5 BUFFER MEMORY

b15 b12 b11 b8 b7 b4 b3 b0

～

1: ON

b15 b12 b11 b8 b7 b4 b3 b0

～

1: ON

5.4.3 Status of LEDs (Un\G3100, 3101)

The status of LEDs will be stored.

(1) Details of stored data

(a) Storage format

As indicated below, Data is stored in the buffer memory.

Buffer memory address Storage format

RE81WH

RUN LED

MEA. LED

Un\G3100

Un\G3101

RUN LED, MEA. LED 0: OFF

R LED, 1. LED, 3 LED

0: OFF

ALM1 LED

ALM2 LED

ALM1 LED, ALM2 LED 0: OFF

1: ON 2: Flashing

ERR LED

R LED

1 LED

3 LED

ERR LED

0: OFF 1: ON 2: Flashing

* When calculated value is low, “MEA”LED, “R”LED, “1”LED and “3”LED are looked like flashing.

Comparing to the last value per measuring cycle, LEDs light while calculating, then LEDs light off upon no

changes. Since measuring cycle is shortest as 10ms, short period setting seems like flashing.

(b) Update timing

It will be update at the status of LED is change.

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Section 5 BUFFER MEMORY

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5.5 Waveform data sections (Un\G10000 - Un\G22013)

5.5.1 Multiplying factor of voltage waveform data (Un\G10000)

The multiplying factor of waveform data of voltage is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

5.5.2 Number of the waveform data of voltage (Un\G10001)

The number of the waveform data during a period of measured data acquisition clock is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: 0 to 300

(b) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.5.3 Communication error flag (Un\G10002)

Result of internal communication of RE81WH is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memor y. ・Data range: 0, 1 (0: no error, 1: error)

(b) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

(2) Precautions

Where the data is “1: error”, the waveform data of voltage of the period of measured data acquisition clock

is not stored into the buffer memory.

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Section 5 BUFFER MEMORY

5.5.4 1-2 voltage waveform data 1 to 300 (Un\G10004 - Un\G10603), 2-3 voltage waveform data 1 to 300 (Un\G12004 - Un\G12603)

Waveform data of each inter-wire voltage is stored. Stores data of the number of the waveform data of voltage (Un\G10001) from waveform data 1.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. ・Data range: -999999999 to 99999999 (-999999.999 to 99999.999 V)

(b) Storage range

The range differs according to the period of measured data acquisition clock. Refer to “” as to details.

(c) Unit

-3

×10

V *Unit is fixed.

(d) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.5.5 Multiplying factor of current waveform data (Un\G16000)

The multiplying factor of waveform data of current is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

5.5.6 Number of the waveform data of current (Un\G16001)

The number of the waveform data during a period of measured data acquisition clock is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: 0 to 300

(b) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

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Section 5 BUFFER MEMORY

RE81WH

5.5.7 Communication error flag (Un\G16002)

Result of internal communication of RE81WH is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: 0, 1 (0: no error, 1: error)

(b) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

(2) Precautions

Where the data is “1: error”, the waveform data of voltage of the period of measured data acquisition clock

is not stored into the buffer memory.

5.5.8 Phase 1 current waveform data 1 to 300 (Un\G16004 - Un\G16603), phase 3 current waveform data 1 to 300 (Un\G20004 - Un\G20603)

Waveform data of each phase current is stored. Stores data of the number of the waveform data of current (Un\G16001) from waveform data 1.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. ・Data range: -999999999 to 99999999 (-999999.999 to 99999.999 A)

(b) Storage range

The range differs according to the period of measured data acquisition clock. Refer to “” as to details.

(c) Unit

-3

×10

A *Unit is fixed.

(d) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

5.5.9 Multiplying factor of voltage and current waveform data (Un\G22000)

The multiplying factor of waveform data of voltage and current is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: -3 (fixed)

(b) Update timing

Because it is fixed at -3, there is no update.

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Section 5 BUFFER MEMORY

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5.5.10 Communication error flag (Un\G22001)

Result of internal communication of RE81WH is stored.

(1) Details of stored data

(a) Storage format

Data is stored as 16-bit signed binary in the buffer memory. ・Data range: 0, 1 (0: no error, 1: error)

(b) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “5.2.12”.

(2) Precautions

Where the data is “1: error”, the waveform data of voltage and current of sampling period is not stored into

the buffer memory.

5.5.11 1-2 voltage waveform data (Un\G22002, 22003), 2-3 voltage waveform data (Un\G22004, 22005)

Waveform data of each inter-wire voltage is stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. ・Data range: -999999999 to 99999999 (-99999.999 to 99999.999 V)

(b) Unit

-3

×10

V *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “4.2.1(6)”.

5.5.12 Phase 1 current waveform data (Un\G22008, 22009), phase 3 current waveform data (Un\G22012, 22013)

Waveform data of each phase current is stored.

(1) Details of stored data

(a) Storage format

Data is stored as double-word 32-bit signed binary in the buffer memory. ・Data range: -999999999 to 99999999 (-999999.999 to 99999.999 A)

(b) Unit

-3

×10

A *Unit is fixed.

(c) Update timing

It will be updated every measuring cycle. For measuring cycle, refer to “4.2.1(6)”.

97

Section 6 SETTING AND PROCEDURE FOR OPERATION

6.1 Procedure for operation

Start

Mounting the module

Mount RE81W H to the specified base unit. (Refer to “6.2”.)

Wiring

Wire RE81WH for external device. (Refer to “6.3”.)

RE81WH

Perform settings using GX Works3. (Refer to “6.4”.)

Parameter setting

Programming, debugging

Create and check the sequence program.

Figure 6.1-1 Procedure for operation

98

Section 6 SETTING AND PROCEDURE FOR OPERATION

conform to JIS B3502). If the count exceeds 50 times, it may cause a malfunction.

6.2 Mounting and removing the module

6.2.1 How to mount to the base unit

1. When a cap is attached to the module connector of the base unit,

remove it.

2. Place the concave part (1) of the module on to the guide (2) of the

base unit.

3. Push in the module until the module fixing hook (3) snaps into

place.

4. Check that the module fixing hook (3) hangs the base unit and the

module is mounted on the base unit securely.

RE81WH

(3)

(1)

(2)

Caution

● Mount to the base of MELSEC iQ-R series.

● When mounting the module, make sure to insert the protruding portions for fixing the module into the

holes on the base unit. In those case, insert it securely so that the protruding portion of the module does

not come off of the holes. Do not forcibly mount the module, otherwise the module may be damaged.

● When installing the module at a vibrating area with strong impact, tighten the module to the base unit

using screws. Module-fixing screws: M3 x 12mm (Prepare them by yourself)

Screw size Tightening torque range

Module-fixing screws (M3 x 12mm) 0.36 – 0.48 N・m

● Mounting and detaching the module and the base unit should be performed 50 times or less (to

99

Mitsubishi Electric MELSEC iQ-R, MELSEC RE81WH User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

FEATURES

CONTENTS

Section 1 SAFETY PRECAUTIONS

1.1 Precautions for Operating Environment and Conditions

1.2 Matters concerning the preparation before use

1.3 Installation and Wiring Precautions

1.4 Precautions for Start-up and Maintenance

1.5 Storage Precautions

1.6 Disposal Precautions

1.7 Packaging materials and this manual

Section 2 SYSTEM CONFIGURATION

2.1 Precautions for system configuration

2.2 Applicable system

Section 3 NAME AND FUNCTION OF EACH PART

3.1 Name of each part

3.2 Indication and function of LEDs

3.3 List of functions

3.4 Functions in detail

Section 4 I/O SIGNALS TO CPU MODULE

4.1 List of I/O signals

4.2 Details of I/O signals

Section 5 BUFFER MEMORY

5.1 Buffer memory assignment

5.2 Configurable sections (Un\G0 - Un\G99)

5.3 Measurement sections (Un\G100 - Un\G2999)

5.4 Common sections (Un\G3000 - Un\G4999)

5.5 Waveform data sections (Un\G10000 - Un\G22013)

Section 6 SETTING AND PROCEDURE FOR OPERATION

6.1 Procedure for operation

6.2 Mounting and removing the module