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EAR70

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-4885  P. 5 / 8

SETTING AT ABNORMALLY LOW INPUT

 

Abnormally low input (in case of the CCW.)

The unit detects the abnormally low input when the input signal is lower than 1.48 mA DC (±0.4 mA DC).
(0.37 V DC (±0.1 V DC ) for voltage input.)
The unit also automatically judges the abnormally low input if the input signal is suddenly fallen to the lower of the set value 
from 20 mA position or middle position. 

SELECTABLE BY

ORDERING INFROMATION

POSITION OF SW1 & SW2

OPERATION

(POSITION OF THE OUTPUT STEM)

N

1
234

ON

Stem hold at input failure

S

1
234

ON

Stem stop at full-shut

O

1
234

ON

Stem stop at full-open

Note: Black squares in the above figures show the position of the DIP switch.

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Factory Setting

Wiring Section

Summary of Contents for EAR70

Page 1: ...hock or electric leakage due to dew condensation A fuse is installed on the top side of the control PWB in side the unit for safety It is 250 V 2 A slow blow type A spare fuse is secured on the base p...

Page 2: ...necting surface is high temperature or its radiated heat is high If the temperature of the unit rises by a heat con ducted or radiated from external it may cause a failure ENVIRONMENT The unit does n...

Page 3: ...12 sq Manual Operation Stem 8 sq Control PWB Terminal BOX Cover Screw Earth Symbol Earth Screw 2 G3 4 Conduit Port 2 G1 2 Conduit Port Motor Capacitor Plate Specifications POWER VOLTAGE INPUT OUTPUT F...

Page 4: ...operation stem cannot be operated Shape of the manual operation stem is 8 mm square Use an adequate wrench Moving the output stem to the direction of full open turn the manual operation stem to the r...

Page 5: ...atically judges the abnormally low input if the input signal is suddenly fallen to the lower of the set value from 20 mA position or middle position SELECTABLE BY ORDERING INFROMATION POSITION OF SW1...

Page 6: ...T STEM Viewing from indicator OUTPUT SW 4 mA DC Open 90 Turn Counter Clockwise OPEN O 4 mA DC 1 2 3 4 ON 20 mA DC Shut 0 Trun Clockwise SHUT S 20 mA DC VOLTAGE INPUT CCW INPUT POSITION OF OUTPUT STEM...

Page 7: ...of full open position Operation direction of output stem differs according to the rotation direction of each adjuster as following 20mA DC input full open 90 SPAN approx 5 approx 4 SPAN ZERO ZERO max...

Page 8: ...stallation during operation tactile No deterioration and changes of the packing and O ring between the mechanism and the cover and on the inner surface of the lid of the BOX visual NO NECESSARY CHECKI...

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