Incremental

Type

Absolute

Type

191

Detector

Push

Slide

Rotary

Encoders

Power

Dual-in-line

Package Type

TACT Switch

TM

Custom-

Products

Test circuit

5V DC

R

Terminal A

R

Terminal B

R

Terminal C

Test condition

 Rotation speed

Terminal D

ABC switch

360°

/s

Product Specifications

5V DC

RR

Terminal B

Terminal A

Terminal C

Encoder

Test circuit

tt

ON

ON

OFF

Output waveform

Sliding direction

t : Masking time to avoid chattering

Measurement condition：Rotation speed 360˚/s

B

CCW

CW

C

0˚

A

At R

＝ 5kΩ

Chattering : 3ms max.

Bounce

: 2ms max.

EC11B

EC11E/EC11G/EC11J/EC11K

EC111/EC11E

EC11B

EC11E/EC11G/EC11J/EC11K

EC111/EC11E

Output Wave

Sliding Noise

At R

＝ 5kΩ

Chattering : 2ms max.

Bounce

: 2ms max.

EC20A

5V DC

RR

Terminal B

Terminal A

Terminal C

Encoder

Test circuit

tt

ON

ON

OFF

Output waveform

Sliding direction

t : Masking time to avoid chattering

Measurement condition：Rotation speed 360˚/s

At R = 5k

Ω

Chattering: 8ms max.

Bounce

: 5ms max.

At R = 5k

Ω

Chattering: 5ms max.

Bounce

: 5ms max.

EC11EH

A signal

B signal

Detent stabillity point

OFF

ON

ON

OFF

The stable detent position cannot be identified in phase B.

EC11E 18 detents 9 pulse

EC11E 36detents 18 pulse

EC11J, EC11K

CW direction

Attached Parts

Hexagonal nut

11

M7×0.75

2

0.5

¿12

¿7.1

EC11B Series

Unit:mm

Flat washer

A signal

B signal

Detent stabillity point

OFF

ON

ON

OFF

EC11B, EC11E, EC11G

30 detents, 15 pulse

CW direction

Shaft rotational Direction

The dotted lines indicate detent positions

Clockwise

ON

A（Terminal AÐC）

A（Terminal AÐC）

B（Terminal BÐC）

B（Terminal BÐC）

Signal

Output

Counter-clockwise

OFF

ON

OFF

ON

OFF

ON

OFF

EC20A

A signal

Detent position

CW direction

B signal

C signal

OFF

ON

OFF

ON

OFF

ON

EC11EH

11mm and 20mm Size Metal Shaft Encoders