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R3-WT1

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: 

+81(6)6659-8510  E-mail: [email protected]

EM-8388  Rev.3  P. 2 / 5

COMPONENT IDENTIFICATION

 FRONT VIEW

RUN LED

ERR LED

1

2

3

4

5

6

7

8

9

10

 SIDE VIEW

ON

8

7

6

5

4

3

2

1

SW1

SW2

ON

8

7

6

5

4

3

2

1

SW3

ON

4

3

2

1

 

SIDE DIP SW

(*) Factory setting
Be sure to turn off the power supply to the module when-
changing settings. Reset the count after setting changes.

• 

SW1, SW2

  Count Reset Enable : Back to 0 at overflow

Disable : Halt at 999 999 999

  Power Factor may start hunting around 1.

SW

FUNCTION

0 : OFF(

*

)

1 : ON

SW1-2

active energy count reset

disable

enable

SW1-3

active energy

bidirectional current

disable

enable*

1

SW1-6

active energy count reset

disable

enable

SW1-7

active energy

bidirectional current

disable

enable*

1

SW2-1 power factor LEAD polarity

normal

inverted

*1.  Both active energy count reset and reactive energycount re-

set are fixed at ‘disable.’ 

 

The count stops at ±999 999 999. 

 

When the bidirectional current computation is enabled,the 
outgoing active energy and the LEAD reactive energy be-
come 0.

Power Factor Polarity

0

-1.0

1.0

COS

q

DEG

90

-90

-180

(LEAD)

180

(LAG)

Inverted

Normal

• 

SW3

The maximum available active energy count is 10

9

.

SW

0 : OFF(

*

)

1 : ON

SW3-1

----

count reset

How to Reset

Set the SW3-1 to ON and turn on the power supply.  Wait 
until the RUN LED (red) starts flashing and the ERR LED
(green) turns on. Then turn the power supply off and reset
the SW3-1 to OFF.  

Turn all switches off other than the above.

 

STATUS INDICATOR LED

RUN indicator

: Bi-color (red/green) LED;

Red when the bus A operates normally;
Green when the bus B operates normally;
Amber when both buses operate normally.

ERR indicator

: Bi-color (red/green) LED;

Red with the input abnormality;
Green in normal operating conditions.

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