11mm and 20mm Size Metal Shaft Encoders
Product Specifications
Output Wave
EC11B
EC11E/EC11G/EC11J
EC111
EC20A
Detector
Push
（
（
（
（
）
）
）
）
EC11B, EC11E, EC11G
30 detents, 15 pulse
The stable detent position cannot be identified in phase B.
Slide
CCW
CW
0˚
EC11E 18 detents 9 pulse
EC11E 36 detents 18 pulse
EC11J
OFF ON
A signal
Rotary
Encoders
Power
OFF ON
OFF ON
A signal
B signal
OFF ON
B signal
B
A
C
Detent stabillity point
Detent stabillity point
CW direction
CW direction
Dual-in-line
Package Type
Multi Control
Devices
TACT SwitchTM
Custom-
Products
Sliding Noise
EC11B
EC11E/EC11G/EC11J
EC111
EC20A
V1
＝V ＝1.5V max.
2
V1＝V2＝1.5V max.
Test circuit
Output waveform
Test circuit
Output waveform
5V DC
R
5V DC
t
t
t
t
R
R
R
Incremental
Type
V1
V2
V1
V2
Terminal A
Terminal B
Terminal A
Terminal B
Absolute
Type
Encoder
Encoder
ON OFF ON
Sliding direction
ON OFF ON
Sliding direction
Terminal C
Terminal C
Measurement condition：Rotation speed 360˚/s
t : Masking time to avoid chattering
Measurement condition：Rotation speed 360˚/s
t : Masking time to avoid chattering
At R ＝ 5kΩ
Chattering
Bounce
At R ＝ 5kΩ
Chattering
Bounce
At R = 5kΩ
:
:
2ms max.
2ms max.
:
:
3ms max.
2ms max.
Chattering
Bounce
:
:
8ms max.
5ms max.
195
ALPS [ ALPS ELECTRIC CO.,LTD. ]
