rev.

page

date

DESCRIPTION: modular incremental encoder

2 of 5

01/2009

20050

phone 503.612.2300 fax 503.612.2383

PART NUMBER: LME

A

B

Z

Tz

T

A

B

Z

X2

X1

OUT

OUT

OUT

OUT

OUT

OUT

Line driver output

Q

Q

AM26LS31

Q = A.B.Z

Q = A.B.Z

H

L

H

L

H

L

H

L

H

L

H

L

Voltage output

VCC

0V

Output

20

Ω

A

B

Z

X2

X1

Tz

T

OUTPUT WAVEFORM

A

B

Z

X4

X3

X2

X

Tz

T(TD)

•Square-wave accuracy:

•Pitch error of period:

±0.01T

•Pitch error of phase position: ≤ 1/18T

).

..

T

4

/

1

,

T

2

/

1

,

T

1

(

T

4

/

1

=

z

T

:

e

s

a

h

p

Z

•

•Period of pulses:

T=360° /N (N: output pulses)

•Signal accuracy:

Xn=1/4T ± 1/12T (n=1, 2, 3, 4)

A leads B clockwise when viewing the encoder shaft end.

The position of Z phase against A, B phase is not specified.