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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. 4 / 8

TERMINAL CONNECTIONS

3

4

6

5

1

2

(U)

(V)

POWER SUPPLY

+

+

E

INPUT (4 - 20 mA DC)

OUTPUT (4 - 20 mA DC)

OUTPUT STEM OPERATION

20mA DC input

Full-open

90 °

 

DESCRIBING THE CASE OF CCW.

4mA DC input

Full-close

 0 °

(Approx. 7°)

(Approx. 6°)

Mechanical Stopper

Mechanical Stopper

OPERATING MANUAL OPERATION STEM

 

PROCEDURE

• Turn off the power.  With power on, the manual 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 right viewing from the top of 

the cover.

• Rotate the manual operation stem while visually checking the indicator (O-S) and the pointer on the top of the cover, and 

confirming the direction, and the angle (90° to 0°).

• A mechanical stopper is provided inside the machinery to prevent excessive movement when using the manual operation 

stem.  Continuing turning the manual operation stem strongly even though it has hit the mechanical stopper, the inside 
the machinery may cause malfunction.

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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