TMW

Multi Power Meter• Industry first in adopting "graphic LCD"
• Display of "time siries" using trend graph• Various measurement displays• Up to 10 elements are displayed collectively• Arbitrary VT, CT settings are possible• "Easy setting" (Setting support function provided)

TOYO KEIKI CO.,LTD
CAT. NO. TMW_E-01
1

Contents
Feature3

Specifications

3-4

Performance

4

Environment and structure

4Type name and spec No.

5

Items to be specified at time of order

5

Parts name and accessories

6

Measurement / display operation procedure

6-7

Setting item

8

Setting value of factory shipments

8

Manual alarm reset

8

Description of internal operation

9

Installation method and precaution of use

10-11

Connection diagram

12-13

Direction of connection

14

Symbol table of measurment items

142

TMW Multi power meterFeature◆Industry first in adopting "Graphic LCD"

Adoption of graphic LCD makes the measurement display screen different from conventional types.

◆"Display of time series" using trend graphPrevious measurements (power, etc) are displayed on a trend graph in time series.
This shows the variation trend of the measurements at a glance.

◆Various measurement displays

Not only the conventional straight bar graph, but also an arc-shaped bar graph are available. They can be switched.

◆Up to 10 elements are displayed collectively

The display screen can be switched among one-element, four-element, and ten-element screens in real time. (See page 6.)
On the ten-element screen, the measurement items of up to 35 elements can be displayed by scrolling the screen (3P4W specification).

◆Arbitrary VT and CT settings are possible

The VT and CT values on the primary side can be set arbitrarily to support special VT and CT.

◆"Easy setting" (Setting support function provided)

In the setting mode, the operation instruction is displayed on the bottom of the display screen. Therefore, setting is possible without the manual.

Specifications①Measurement spec.
Item

Input range

Display

Current (R, S, T)

0〜5A（20A extension）

Input current × CT ratio

Voltage (R-S, S-T, T-R)

0〜150V or 0〜300V

Note 1)

Input voltage × VT ratio

Active Power

0〜1kW or 0〜2kW

Note 1)

Input Power × CT ratio×VT ratio

Reactive PowerLEAD 1kvar〜LAG 1kvar
or LEAD 2kvar〜LAG 2kvar

Note 1)

Input × CT ratio × VT ratio

Apparent Power

0〜1kVA or 0〜2kVA

Note 1)

Input × CT ratio × VT ratio

Power factor

LEAD 0〜1.0〜LAG 0

Note 1)LEAD 0.0〜100.0〜LAG 0.0％

Frequency

45㎐〜65㎐

Note 1)45.00㎐〜65.00㎐

Watt demand

0〜1kW or 0〜2kW

Note 1)

Input × CT ratio × VT ratio

Amp demand

0〜5A or（20A extension）

Input curnent × CT ratio

Active energy−

Note 1)0.000〜999999.999kWh（MWh）
Incomming Wh : sign ＋Wh
outgoing Wh : sign −Wh

Reactiv energy−

Note 1)0.000〜999999.999kvarh（Mvarh）
LAG 0.000〜999999.999kvarh（Mvarh）
LEAD 0.000〜999999.999kvarh（Mvarh）

Operating time−

0〜999999h

Current THD

0〜100％ Peak Value : 0〜9.9A

0〜100％

Voltage THD

0〜100％,Peak Value
0〜250V（Rated Voltage 110V） Note 1)
0〜500V（Rated Voltage 220V）

0〜100％
note 1) Invalid for current specifications.

②Aux. Power
Spec

Voltage range

Consumption

Worldwide power

AC80〜264V
DC80〜143V

5VA
3W（ 27mA）

DC24V

DC19〜 31V

3W
（123mA）③Input specifications
Spec
1P2W /
1P3W /
3P3W

3P4W

RatingInput range

Consumption

110V/220V, 100V/200V
5A

0〜150V／0〜300V
0〜5A（extension to 20A）

0.11VA/0.22VA
0.5 VA

440V
5A

0〜600V
0〜5A（extension to 20A）

0.44VA
0.5 VA

110/√3‾V／220/√3‾V
5A

0〜150/√3‾V／0〜300/√3‾V
0〜5A（extension to 20A）

0.04VA/0.08VA
0.5 VA

440/√3‾V
5A

0〜600V/√3‾V
0〜5A（extension to 20A）

0.16VA
0.5 VA

Note) exchange 1P2W, 1P3W, 3P3W spec and 110V, 220V input each other by setting

3

④Output specifications
Output typeSpecification

Analog output

DC4〜20mA 0〜550Ω
DC1〜5V
600Ω〜∞
MAX.4CH

Pulse output

Active energy or Reactive energy
DC125V, AC125V 0.1A MAX.2CH

Relay output

Upper alarm or Lower alarm
AC250V 5A
DC100V 0.3A, DC30V 5A
MAX.2CH

Transmission output

RS-485
Protocol : MODBUS
Baudrate : 2400, 4800, 9600, 19.2k, 38.4kbps(Note) ­	 Up to two point outputs are available for pulse output and alarm output.
­	Either of transmission output and pulse output (alarm output) is to be selected (see type name system).
­	
Pulse output is output asynchronously with the display update interval.
Note that a time difference may be generated between the indicated value and the pulse number.

⑤ Remote input specification
The measurement items of the main display can be changed by applying a voltage from outside (Display screen 1 or Display
screen 2).
Apply a voltage of 80 to 264 VAC or 80 to 143 VDC to the external input terminal (for 0.5 seconds or more). Each time avoltage is applied, the next item is selected.
(See page 11.)

⑥Display specifications
Specification
LCD

Dot matrix monochrome LCD
240×160Dots
Back light : white

Digitalone element（with trend-graph）
4 elements（with bar-graph）
10 elements

Bar-graph

20dotsBar-graph type:straight line or arc-shaped type

Trend-graphtime series display of each elements（160sampling points）
Vertical: 50dots
Horizontal: 1h、3h、6h、12h、24h
demand time × 2 for demand Watt and demand Amp

Performance

Environment and Structure

Item

Tolerance

Specification
Current
Nphase Current
Voltage
Active power
Reactive power
Apparent power
Power factor
Frequency
Watt demand
Amp demand
Active energy
Reactive energy
Operating time
Current THD
Voltage THD
Residual current

Item

±0.5％
±3.0％
（only 3P4W）
±0.5％
±0.5％
±1.0％
±1.0％
±3％
±0.5％
±1.0％
±1.0％
±2.0％
±2.5％
±1h
±1.0％
±1.0％
±1.0％
（Option）

Specification

Operating temp

−10〜55℃

Storage temp

−20〜70℃

humidity

Under 85%RH
case Flame resisting ABS

Structure

cover Flame resisting ABS
Terminal cover polycarbonate
Terminal screw brass（M3.5、
M3）

Effect of Temperature±0.3％ / 10℃

Response time

About 1second ※1）

Insulation resistanceOver 100MΩ 500VDC

Withstand voltage

AC2000V for 1minuteImpulse test

6kV 1.2 / 50μs

Vibration & ShockVibration 10〜55〜10㎐ 0.15㎜
Shock 490m/s2 XYZ positive and negative each 3times※1）The response time of volfage THD and Current THD is : about 4seconds

4

WeightAbout 580g

Display element

LCD

Protecion rating

IP40

Type Name And Spec No.

TMW−□□−□−□□−□
Input
No.

Specification

31

1P2W / 1P3W / 3P3W
110/220V, 5A

32

1P2W / 1P3W / 3P3W
440V, 5A

33

1P2W / 1P3W / 3P3W
110/220V, 5A with a residual current input

34

1P2W / 1P3W / 3P3W
440V, 5A with a residual current input

35

1P2W / 1P3W / 3P3W
current input only

41

3P4W
110/√3‾/220/√3‾V, 5A

42

3P4W 440/√3‾V, 5A

45

3P4W current input only

99

Other

Auxiliary power supplyNo.

Specification

1

DC19〜31V

2

AC80〜264V, DC80〜143V

9

Other

Out put
No.

Specification

00

None

11

1-5V 4ch Analog output

12

4-20mA 4ch Analog output

21

1-5V 4ch Analog output + 2ch Pulse output

22

4-20mA 4ch Analog output + 2ch Pulse output

31

1-5V 4ch Analog output + 2ch Alarm output

32

4-20mA 4ch Analog output + 2ch Alarm output

41

1-5V 4ch Analog output + Pulse output + Alarm output

42

4-20mA 4ch Analog output + Pulse output + Alarm output

51

1-5V

52

4-20mA 4ch Analog output +RS-485

61

RS-4854ch Analog output +RS-485

Viewing direction
No.

Specification

E

Instrument screen of viewing angle to 6 o'clock

ED

Instrument screen of viewing angle to 12 o'clock

Plase consult with our company for detailed spec.

Items to be specified at the time of order
1. Type name

2. Input

3. Auxiliary power supply

4. Output

5. Viewing direction

TMW

−□□

−□

−□□

−□

【Example】TMW-31-2-22
CT100A, VT3300V, Demand time 15minutes
CH1 … Active power
CH2 … Current R phase
CH3 … Voltage RS phase
CH4 … Frequency
Pulse CH1 … Watt-hour / 10kWh / 1Pulse
Pulse CH2 … Lag Varh / 10kvarh / 1Pulse
Input 3P3W, 110V, 5A（Note） The internal parameters can also be specified at the time of order. The unit
is shipped with the specified values set.
The setting items that can be specified are CT ratio, VT ratio, and Demand
time limit.
For the specifications with analog output, the elements of each output
can be specified. For the specifications with pulse, the pulse elements andmultiplying factor can be specified.

5

Terminal cover

Parts name and accessories

W / V / A Key

Fitting bolt

＋ Key
SET Key

GRAPH Key− Key

LCD display

Measurement/display operation procedure
The operation of the switch used in measurement mode and the operation procedure are described below.
The measurement display screen can be selected from the following three types of screens according to the number of display elements.
Number of display element

Graph display

Key operation

Display1

1

Trend graph

Key

Display2

4

Bar graph

Key

Display3

10

−

Key

Use

Item

Trend graph Main display Time scale

key to switch the display screen.

①Display screen 1
An arbitrary one of the measurement elements is displayed.
The most recent 160 points are indicated on the trend graph with thedigital representation of the measurements.
The display time of the trend graph can be selected from 1h, 3h, 6h, 12h,and 24h.
(During demand display, the display time is twice the demand time limit.)
For measurement scaling, the scaling set for the bar graph is applied.
Note 1: If VT, CT, the trend graph display time, or the bar graph scaling
Measurement Lower setting
Upper setting
is changed, the trend graph is cleared once and the display starts again
scale
point
point
from 0h.
Note 2: The trend graphs displaying active energy, reactive energy, and operating time are "Active power", "Reactive power",and "S phase current", respectively.
Note 3: The trend graph is not the four-quadrant type.
Pressing the
key displays the element list on the bottom of the screen. Also, the measurement element currently displayed
is highlighted.
The display elements are switched using the
key andkey.
The
key is used for switching the elements in the forward direction. The
key is for switching the elements in thereverse direction.
Pressing the
key again deletes the element list.
【Change of measurement element】
3P4W

Line-line voltage（RS、ST、TR）→Phase voltage（R、S、T）→Current（R、S、T、N）→Active power→Reactive power→Apparent power→Powerfactor→Frequency→Watt demand（Inst、Max、Min）→Amp demand（Inst、Max、Min）→Voltage THD（RS、ST、TR）→Current THD（R、S、T）→Incomming Wh→Out going Wh→LAG varh→LEAD varh→operating time ………

3P3W

Line-line voltage（RS、ST、TR）→Current（R、S、T）→Active power→Reactive power→Apparent power→Power-factor→Frequency→Watt demand（Inst、Max、Min）→Amp demand（Inst、Max、Min）→Voltage THD（RS、ST、TR）→Current THD（R、S、T）→Incomming Wh→Out going Wh→LAG
varh→LEAD varh→operating time ………

1P3W

Line-line voltage（RN、TN、RT）→Current（R、N、T）→Active power→Reactive power→Apparent power→Power-factor→Frequency→Watt demand（Inst、Max、Min）→Amp demand（Inst、Max、Min）→Voltage THD（RN、TN、RT）→Current THD（R、N、T）→Incomming Wh→Out going Wh→LAG
varh→LEAD varh→operating time ………

1P2W

Voltage（RN）→Current（R）→Active power→Reactive power→Apparent power→Power factor→Frequency→Watt demand（Inst、Max、Min）→Amp
demand（Inst、Max、Min）→Voltage THD（RN）→Current THD（R）→Incomming Wh→Out going Wh→LAG varh→LEAD varh→operating time ………

6

②Display screen 2
An arbitrary four of the measurement elements are displayed. Also, the elements of the main display are displayed on a bar
graph at the same time.
The bar graph can be selected from the straight type and arc-shaped type.
(The elements to be displayed on the subdisplay and type of the bar graph can be selected in the setting mode.)

sub-disp１st
Main bar-graphsub-disp２nd
sub-disp３rd

main-disp

main-disp

sub-disp１st
sub-disp２nd

Main bar-graph

Straight bar-graphsub-disp３rd

Arc-shaped bar-graph【Switching elements】
Pressing the
key displays the element list on the bottom of the screen. Also, the elements currently displayed are highlighted.
The display elements are switched using the
key andkey.
The
key is for switching the elements in the forward direction. The
key is for switching the elements in the reverse
direction.
The order of switching the elements is the same as that of the Display screen 1.
Pressing the
key again deletes the key operation screen.
The elements displayed on the subdisplay are fixed. However, the elements to be displayed can be selected arbitrarily in thesetting mode.
(See setting item 2 "Display measurement item setup.")
The bar graph can also be selected from the straight type and arc-shaped type in the setting mode.
(See setting item 3 "Bar graph setup.")
Note: The bar graph is not the four-quadrant type.

③Display screen 3

Unit、multiplying factor

Item

Ten elements are displayed.
All the elements can be displayed by scrollingthe screen using the
key andkey.
Scrolling direction
measured values

All the measurement elements are displayed. However, only ten elements are displayed at one time.
The elements not displayed can be displayed by pressing the
key orkey to scroll the screen.

④Mask of main display elements
On the Display screen 2, elements that need not be mainly displayed can be masked by setting.
The masked elements are skipped when switching the display.
On the Display screens 1 and 3, all the elements are displayed regardless of the mask setting.

⑤Display of lower digits of active energy, reactive energy, and operation time
The digits lower than the normal display are displayed for active energy, reactive energy, and operation time.
This function is used to quickly check the operation of the unit.
①Display active energy, reactive energy, and operation time.
②Press the
key and
key together. While the keys are pressed, the lowest digit of the normal display and the further
lower three digits are displayed.
When the keys are released, the normal display appears again.

7

Setting item
No.

setting item

Explanation

1

The setup of VT or CT

Setup of standard VT,CT ratio or arbitrary VT,CT ratio.

2

Display measurement item setup

Mask of measurement item on the main display and select of measurement item on subdisplay.

3

Bar-graph setup

Selection of bar-graph type and setting bar-graph scale.

4

Setup of setting point

The display is blinked when the input signal exceeds setting point.

5

Minimum value setup

Setting minimum range of voltage and current.

6

Demand setup

Selection of demand calculation type, setting demand time reset and adjustment of demand.

7

Setting of alarm output

Setting alarm output item, alarm value, and return time.

8

Setting of analog output

Setting analog output item and output range.

9

Setting of pulse output

Setting pulse output item and multiplier.

10

Setting of digital output

Selection of mode, baudrate, parity and address.

11

Display setup

Setting the interval of display, wh multiplier and the phase display.

12

Setup of dead band

Setting of the dead band of each items.

13

Back-light setup

Selection of back-light off mode.

14

Trend-graph setup

Setting the display time range.

15

Wh reset

Resetting wh,varh,operating time.

16

initial setup

It returns to the setting when it is shipped at the factory.

17

Setup of input specification

Selection of input circuit and input voltage.
Underlined item
is valid

Setting item
Underlined item
is valid

Current setting

Current setting

Operating
instructions

Set menu display

Setting value of factory shipments

Example of setting item
（Bar-graph setup）（Without Current Spec）

Item

Setting value

Display screen

Disp screen No.１（Trend-graph）
Measuring item：Active power

VT ratio

3 phase : 6600V
1 phase : 100VCT ratio

3 phase : 100A
1 phase : 100A

Main-display element

Item

Setting value

Alarm output

CH1：Watt demand 960kW、manual reset
CH2：Amp demand 80.0A、manual reset

Back-light

Auto off mode
Bright：max（6）Contrast：140

All element displays

Analog output

Sub-display element

1st : Active energy
2nd : Active power
3rd : S Phase current

CH1：S phase current
CH2：Active power
CH3：RS phase voltage
CH4：Frequency

Pulse outoput

CH1：Incoming 1kWh/pulse
CH2：LAG 1kvarh/pulse

Bar-graph

Voltage : deviation scale of V unit
Current : real scale (A)Active power : real scale(W)Reactive power : real scale(var)Power factor : -0%〜100%〜0%Frequency : 45〜65Hz

Communication
paramenter

Baudrate：9600
Parity：None
Address：01
Mode：ASCII
Data size：2word
Date type：BCD
LRC type：Type1
Multiplier of Wh：1kWh

Display

Display interval : 0.5S
Phase : R、S、T
Wh multiplier : Auto
Reactive energy : Valid on incomming
Trend-graph time：12h

Dead band

0.2％ of the rated

Setting point

Max voltage value : 7260V（3phase）, 110.0V（1phase）
Min voltage value : 5940V（3phase）, 90.0V（1phase）
Other elements : OFF

Minimum value of
range

Voltage：1.0％ of max rated
Current：2.0％ of rated

DemandDemand type：thermal instrument
Demand time：30 minutes

Manual alarm reset
If manual recovery is selected as the alarm output setting recovery mode, the alarm continues until the alarm reset operation is
performed. The alarm reset operation can be performed by using the keys as described below.
Item
Alarm reset

key
operation

Explanation
・On pushing・Pushing

key operation guide is displayed on the screen.
key reset alarm output and return to measurement mode.

8Description of internal operation①Internal block diagram
P1

VT

Input

P2
P3

3S

ＭＰＸ

Ａ／Ｄ
Converter

1L

Circuit1S

CTdisplay

3L

ＣＰＵ
ＲＯＭ
ＲＡＭ

Switch

OutputCircuit

S1

Power supply
S2
G

Note: The diagram above indicates the structure of 3P3W. In 3P4W, the number of input VT and CT is diﬀerent.

②Overview of operation①A voltage input and current input are insulated by the small VT and CT in TMW respectively and detected as signals proportional to each input in the
input circuit.
②The input signals are sampled respectively by the MPX (multiplexer) and A/D converter at a high speed and provided for the CPU as digital values.
③The measured quantities are computed respectively in the operation part that consists of the CPU, ROM, and RAM, and the results are displayed on
the LCD display.
In some specifications, they are output to the outside as analog output and digital output.

③Measurement principle①Voltage and current
The values sampled at a high speed in eight input periods are squared and integrated. Then the square root of the result is extracted. This allows
correct measurement of effective values even when the input waveform is distorted.

②Active power
The power value is obtained by multiplying the values obtained by sampling the voltage input and current input at a high speed and integrating themfor the eight input periods.
The total power value is obtained by adding up the active power of each phase according to the two-wattmeter method for 3P3W and the threewattmeter method for 3P4W.

③Reactive power
As with power value measurement, the sampling values of the voltage input and current input are multiplied. At this time, the values are multiplied
after shifting the current input period by 90°.
As a result, the reactive power value is obtained. As with active power, the total reactive power value is obtained by adding up the reactive power of
two phases for 3P3W, and the reactive power of each phase for 3P4W.

④Apparent power
The apparent power is calculated from the active power and reactive power value by using the following formula.

VA＝√W²￣+var²⑤Power factor
The power factor is calculated from the active power and reactive power value by using the following formula.

PF＝W/√W²￣+var²

Note that the power factor value may vary with measuring instruments having different operating principles.

⑥Frequency
The period of the voltage input waveform is detected by the counter and the frequency is computed.

⑦Watt demand Amp demand
For Watt demand and Amp demand, two types of demand values, thermal demand and arithmetic mean type demand, are provided. The thermal demandvalue is obtained by taking an index moving average of the power or current value described above.
The arithmetic mean type demand value is obtained by calculating the arithmetic mean of the power or current value within the demand time.
Also, for the arithmetic mean type demand, the demand value is automatically reset to 0 after the demand time has passed and then integrated again.
(The maximum and minimum demand values are reset to 0 after the power is turned off.)⑧Active energy and reactive energy
Active energy and reactive energy are obtained by integrating the active power value or reactive power value described above at a constant timeinterval.
Also, power transmission and power reception are integrated separately for corresponding to the power flow. For reactive energy, LAG and LEAD
are integrated separately.
Active energy and reactive energy are stored in the internal nonvolatile memory and held even after the power is turned off.
(The internal nonvolatile memory ensures that data is held for ten years or more after power outage.)⑨Operating time
If a current exceeding the value set as the minimum current is input to any of the phases, the energizing time is integrated.
The integration unit is h (hour). The operating time is stored in the internal nonvolatile memory and held even after the power is turned off. (Theinternal nonvolatile memory ensures that data is held for ten years or more after power outage.)
Integration of the energizing time by phase voltage input is possible if specified. Please consult us.

⑩Current distortion rate and voltage distortion rate
The values are obtained by conducting DFT processing for the values sampled at a high speed in eight periods, calculating the effective values of theentire harmonics of the orders from 2 to 15, dividing them by the effective value of the fundamental, and expressing them as a percentage.

9

Installation method and precautions for use①Installation method and precautions for use
Checking product to be used
The specifications of input, auxiliary power, and output are indicated on the product. Check that they conform to the specifications required.

②Installation environment
The installation environment directly affects the performance and life of the product. Refer to the following when selecting the installation environment.
①Ambient temperature and humidity
Avoid high temperature, high humidity, and their sudden changes as much as possible when storing, transporting, and using the product.。
②Avoid places where corrosive gases such as sulfidizing gas and ammonia gas are generated and places where oil, water, etc. is splashed.
③Avoid continuous vibration and shock when using the product.
④Consult us in advance when using the product in other special environments.

③Installation①Installation position
This product is equipped with a liquid crystal display.
On the liquid crystal display, the contrast changes depending on theviewing angle. Therefore, two types of liquid crystal displays areprepared for this product.
Refer to the figure on the right when selecting the display andinstallation position.
The installation position "High" type should be installed at a position
slightly higher than your eye level to obtain a good contrast. The
installation position "Low" type should be installed at a position
slightly lower than your eye level.
Leave a clearance in the depth direction for pulling the cable.

30°
60°
viewing angle to upper

60°
30°

②Installation

45°

Refer to the panel cut on the dimensional outline drawing whenforming the installation hole. This product is designed to be installedwith two screws on the diagonal line.
When installing the product adjacently to another, arrange them witha clearance of 115 mm or more in the left direction and 125 mm ormore in the vertical direction.

45°

viewing angle to lower（side view）（Top view）

Fine visible area

③Dimensional outline drawing

110

99.5

（129.1）

Ｍ5
W/V/A
etc

110

（107.5）45±0.5

45
2−6φ

10

2 ±1

45

Ｍ3.5TERM.SCR（21.6）

Terminal cover45±0.5GRAPH

Ｍ3TERM.SCR

Pannel cut-out

1045±0.5SET

④Connection
Connect the product correctly according to the connecting diagram. Precautions for connection are described below:①Slide the terminal cover in the direction of the arrow to remove. On completion of connecting work, mount the terminal cover again.
②Prepare M4 terminals for the input terminal and power terminal,
Input,power supply andoutput terminal
and M3 terminals for the output terminal.
Remote input terminal

8.2㎜
MAX

6㎜
MAx

③Especially in the high voltage circuit, ground one side of input-side CT and VT for safety (see the connecting diagram).
④Be sure to ground the grounding terminal (11th terminal) for safety and stable operation.
⑤For the product with 24 VDC auxiliary power, the auxiliary power terminal has polarity.
If it is connected with polarity reversed, the product cannot operate.
・­For the products with the power specifications 19 to 31 VDC, the 9th terminal is (+) and 10th terminal is (-) (see the connecting diagram).
・­For the products with the power specifications 80 to 264 VAC and 80 to 143 VDC, the power terminal does not have polarity. The products operate
normally regardless of the connecting position.
⑥Use a cable with a wire diameter having sufficient capacity.
It is necessary to select the cable by taking excess current into consideration, especially connecting it to the current input.
⑦For the specifications with output, separate the wiring to the output signal from the input-side wiring, wiring to the power source, power line, etc.,
and use shielding wire and twisted pair wire as necessary.
⑧The external switching input is activated by applying a voltage.
TMW
Prepare an 80 to 264 VAC or 80 to 143 VDC power source.
12
It can be shared with the supply power source to the auxiliary power.
The internal structure is as shown in the left figure.
DC
ACThe external switching input can be left open if it is not used.
The consumption current at the switching input is about 1 mA for 100 VAC/100 VDC, and13
about 2 mA for 200 VAC.

TMW

24,26

Load
AC
DC

⑨The structure of the pulse output is as shown in the left figure. Use at a voltage andcurrent within the rating.
When driving an inductor, relay, etc., be sure to take measures to prevent excessive voltage,
such as a surge absorber.

25,27
TMW

24,26

Load
AC

⑩The structure of the alarm output is as shown in the figure on the left.
Use at a voltage and current within the rating.
When driving an inductor, relay, etc., be sure to take measures to prevent excessive current.

DC

25,27
⑪Do not use unused terminals as relay terminals. If the output terminal is not used, leave it open and do not connect anything.
For the specifications with current output, it is not necessary to short-circuit the output when it is not used. Leave it open.
Also for the products with digital transmission output, leave the output open if it is not used.
⑫When connecting the terminals, be sure to check that the screws are tightened securely and mount the terminal cover again.
Slide the terminal cover into the main body.

⑤Troubleshooting
ProblemCause/Solution

The display is difficult to see.

①This product is equipped with a liquid crystal display. The liquid crystal display may be hard to see
depending on the viewing direction. It is designed so that it can be seen easily when viewed from thefront of the display or in the direction of looking up the display. Note that, on the other hand, thedisplay is a little bit difficult to see when viewed in the direction of looking down on the product.
②The contrast of the liquid crystal becomes poor in an environment with high ambient temperature(exceeding 45℃). It is recovered when the temperature falls.
③When the front cover is dirty, wipe it with a soft cloth.
Do not wipe with a chemical cloth, benzine, thinner, etc. Deformation or discoloration may occur.

The display flashes.

If the input exceeds the setting point of the setting guideline, the display flashes.
Check the setting point.

The backlight went off.

Is the backlight turned on when the
key is pressed? If so, there is no problem.
The lighting type of the backlight can be selected from the following at the initial setting:・­It is on at all times.
・­It is not used.
・­It is on for three minutes after key operation and then turned off automatically.
When the backlight is dim, the brightness can be adjusted.
See setting item 13 Backlight when changing the setting.

A message "ERR01" appears on thedisplay and the unit does not operate.

An error is found in the RAM in the unit.
It cannot be used in this state. Arrange for repair.

A message "ERR02" appears on thedisplay and the unit does not operate.

An error is found in the program in the unit.
It cannot be used in this state. Arrange for repair.

A message "ERR03" appears on thedisplay and the unit does not operate.

An error is found in the internal nonvolatile memory data in the unit.
Resetting is required. Please contact us.

11Connection diagram
Input connection diagram

Input connection diagram for current spec.

３Ｐ４Ｗ

３Ｐ４Ｗ

S2

2S

15
2L

3S

3L

1S

1L

EXT1 EXT2

10

12

EXT.
SW
（＋
〜）

（＋） （−）AUX.
SUPPLY

G

13

11

S1

9

S1

9

G

11

14

S2

10

AUX.
SUPPLY（−〜）

３Ｐ3Ｗ, 1P3W

2S

15
2L

3S

3L

EXT1 EXT2

12

EXT.
SW
（＋
〜）

13

（−
〜）

３Ｐ3Ｗ, 1P3W
SOURCE

LOAD

1 2 3

LOAD

1 2 3

SOURCE

14

8

6
1L

7

5
1S

6

4
P0

5

3
P3

8

2
P2

LOAD

7

1
P1

SOURCE

1230

LOAD

1230

SOURCE

6
5

8

5

6

7

8

1S 1L ZCTS ZCTL 3S 3L

1S

1L

3S

3L

(Note)

EXT1 EXT2S210（＋） （−）AUX.
SUPPLY

12

EXT.
SW
（＋
〜）

G

13

11

S2

10

AUX.
SUPPLY（Note）
Residualcurrent is option.

（−
〜）

S1

9

S1

9

G

11

14 15

7

3
2
1
P1 P2 P3

1P2W

12

EXT.
SW
（＋
〜）

13

（−
〜）

1P2W
SOURCE

LOAD

1

LOAD

1

SOURCE

EXT1 EXT2

2

2
S2

10

（＋） （−）AUX.
SUPPLY

EXT1 EXT2

12

EXT.
SW
（＋
〜）
（−
〜）

G

11

13

S1

9

S1

9

G

11

14 15

(Note)

S2

10

AUX.
SUPPLY（Note）
Residualcurrent is option.

12

6

6
5

1S 1L ZCTS ZCTL

5

2
1
P1 P2

1S

1L
EXT1 EXT2

12

EXT.
SW
（＋
〜）
（−
〜）

13

Output connection diagram

Analog output ４CH

16

17

18

19

20

21

22

23

＋

−

＋

−

＋

−

＋

−

Analogoutput 1

Analogoutput 2

Analogoutput 3

24

25

26

27

28

29

30

Analogoutput 4

Analog output ４CH + Pulse output 2CH

16

17

18

19

20

21

22

23

＋

−

＋

−

＋

−

＋

−

Analogoutput 1

Analogoutput 2

Analogoutput 3

Analogoutput 4

24

25

Pulse
output 1

26

27

28

29

30

Pulse
output 2

Analog output ４CH + Alarm output 2CH

16

17

18

19

20

21

22

23

＋

−

＋

−

＋

−

＋

−

Analogoutput 1

Analogoutput 2

Analogoutput 3

Analogoutput 4

24

25

Alarm
output 1

26

27

28

29

30

Alarm
output 2

Analog output ４CH + Pulse output + Alarm output

16

17

18

19

20

21

22

23

＋

−

＋

−

＋

−

＋

−

Analogoutput 1

Analogoutput 2

Analogoutput 3

Analogoutput 4

24

25

Pulse
output

26

27

28

29

30

27

28

29

30

＋
−
RS−485

SL

Ter

Ter

26

27

28

29

30

＋
−
RS−485

SL

Ter

Ter

Alarm
outputAnalog output ４CH + RS−485

16

17

18

19

20

21

22

23

＋

−

＋

−

＋

−

＋

−

Analogoutput 1

Analogoutput 2

Analogoutput 3

24

25

Analogoutput 426

RS−485

16

17

18

19

20

21

22

23

24

25

13

Direction of connection

Assign of terminal
Input terminal

Input termNo.

Output terminal

Direction of input

2

10

3

11
12
13

15

25

18
19

5

20

7

24

17

4

6

14

16

Direction of output

17

T phase voltage

18 CH2 analog output（+）

4

N phase voltage

19

27

6
7
8

30

23

S phase voltage

3
5

29

22

9

8

10
11

Input is connected from left side.
Output is connected from right side.

Function

16 CH1 analog output（+）

2

26

28

21

No.

1 R phase  voltage19Function

output term

12
13

（−）
（−）

20 CH3 analog output（+）

R phase current

（−）

21

22 CH4 analog output（+）

T phase current

（−）

23

Auxiliary power supply
GND

24
25

Pulse output or alarm output

26 Pulse output,alarm  
27 output or RS-485（＋）,（−）

Remote input

14 S phase current or Residual
15 current

28

SL

29

Ter（RS-485 terminal
register（internal））

30

Symbol table of measurment items
Item's symbol for measurment mode
SymbolItem
ＲＳ phase voltage

VRS

Unit

Item

Unit

V

IR−D

MAＸ

Maximum Ｒ phase Amp demand

A

IR−D

MＩＮ

Minimum Ｒ phase Amp demandA

IS−DEMANDor IS−DEM

Sphase Amp demand

A

IS−D

MAＸ

Maximum Sphase Amp demand

A

IS−D

MＩＮ

VST

ST phase voltage

VVTR

TR phase voltage

V

VRN

RN phase voltage （for 1P3W）

V

VTN

TN phase voltage （for 1P3W）

V

VR

R phase voltage （for 3P4W）

V

VS

S phase voltage （for 3P4W）

VT
IR

SymbolMinimum Sphase Amp demand

A

V

IT−DEMANDor IT−DEM

Tphase Amp demandA

T phase voltage （for 3P4W）

V

IT−D

MAＸ

Maximum Tphase Amp demandA

R phase current

A

IT−D

MＩＮ

Minimum Tphase Amp demandAIS

S phase current

A

VRS−THDＲＳ phase voltage THD%

IT

T phase current

A

VST−THDST phase voltage THD%

IN

N phase current （for 3P4W）

A

VTR−THDTR phase voltage THD%

W

Active power

W

IR−THDＲ phase current THD%

ＶＡＲ

Reactive powervar

IS−THDS phase current THD%

VA

Apparent power

VA

IT−THDT phase current THD%

PFPower factor%+WH

Incomming active energy

Wh

Hz

Frequency㎐−WH

Outgoing active energyWh

LAG reactive energy

varh
varh

P−DEMANDor P−DEM

Watt demandW

LAG orLAG VARH

P−D

MAＸ

Maximum Watt demand

W

P−D

MＩＮ

Minimum Watt demand

W

LEAD orLEAD VARH

LEAD reactive energy

Ｒ phase　 Amp demand

A

LOAD

Operation time

IR−DEMANDor IR−DEMhItem's symbol for setting mode
SymbolItem

Ref.

Symbol

Item

Ref.

V−all

All L-L voltage

Alarm

Vavg

L-L average voltage

AnalogVn−allAll L-N voltage

Alarm

Vmax

L-L maximum voltage

AnalogI−all

All phase current（without N phase current）

Alarm

Vmin

L-L minimum voltage

AnalogId−allAll phase demand current

Alarm

Vnavg

L-N average voltage

AnalogVnmax

L-N maximum voltage

AnalogVnmin

L-N minimum voltage

AnalogIavg

Average all phase current

AnalogImax

Maximum all phase current

AnalogImin

Minimum all phase current

AnalogVthd−al All phase voltage THD

Alarm

Ithd−al All phase current THD

Alarm

14

Precautions

Precautions in safety· The handling of this product shall be carried out persons who havesufficient knowledge and skill to correctly use this.
· Connect all wiring's without any wrong connection after sufficiently
identifying this connection diagram.
· Tighten screws surely. Slackening of screws may cause to generate heatand burning.
· Do not use this at any value exceeding the rated specification. It may
cause a failure and an accident.
· Do not touch to the live part. Always cut out the circuit when maintained
and inspected it.

TOYO KEIKI CO.,LTD
Head Office

3-10-17, Shimosinjyou, Higashiyodogawa-Ku, Osaka, Japan.
〒533-0021
TEL. 06(6329)2441 FAX 06(6328)4112

Tokyo Office.

8-47-27, Shin-Yoshidahigashi, Kohhoku-Ku, Yokohama.
〒223-0058
TEL. 045(542)8201 FAX.045 (541)3989

Nagoya Office

SI Bldg.6F, 1-7-32, Nishiki, Naka-Ku, Nagoya.
〒460-0003
TEL. 052(219)7780 FAX. 052(219) 7781

Osaka Factory

3-10-17, Shimosinjyou, Higashiyodogawa-Ku, Osaka, Japan.
〒533-0021
TEL. 06(6328)1700-5 FAX 06(6328)4112

Toyama Factory

2-6-1, Yasuuchi, Yatsuo-machi, Toyama-Shi, Toyama.
〒939-2366
TEL. 0764(55)2003 FAX. 0764(55)2005

Tokyo Factory.

8-47-27, Shin-Yoshidahigashi, Kohhoku-Ku, Yokohama.
〒223-0058
TEL. 045(542)3453 FAX. 045(541)9989

		Please consult with our Foreign Trade Dept.

TEL 81+6-6329-2441
FAX 81+6-6328-4112