maxon Product Range 2026/27

Encoder HEDL 9140 500 CPT, 3 channels, with line driver RS 422

Cycle C = 360°e

Pulse P = 180°e

U High U Low U High U Low U High U Low

Channel A

90°e

Phase shift

Channel B

Channel I

(Index)

s 3

s 4

s 1

s ∆ 45°e < s 2 s = 90°e 1..4

Direction of rotation cw (definition cw p. 100)

Stock program Standard program Special program (on request)

Part numbers

cable outlet axial cable outlet radial

386051 386053

386001 386002

Type

Counts per turn Number of channels Max. operating frequency (kHz) Max. speed (rpm)

500 100 3

500 100 3

12 000

12 000

overall length

overall length

RE 50, 200 W 291 RE 50, 200 W 291 RE 65, 250 W 292 RE 65, 250 W 292 Modular system + Motor Page

+ Gearhead

+ Brake Page

Page

Overall length [mm] / • see Gearhead

170.4 183.4 •

RE 50, 200 W 291 GP 52, 4 - 30 Nm 386

AB 44 480

RE 50, 200 W 291 GP 52, 4 - 30 Nm 386 AB 44 480

187.5 205.5

AB 44 480

Technical data Supply voltage V CC  Typical current draw Output signal driver used: Phase shift Φ 

Pin allocation Encoder Cable white = Cable brown = Cable green = Cable yellow =

Connection example

5 V ± 10% 55 mA DS26LS31 90°e ± 45°e

Line receiver Recommended IC's:

GND V CC

V CC 5 VDC Channel A Channel A GND Channel B Channel B

EIA Standard RS 422

- MC 3486 - SN 75175 - AM 26 LS 32

Cable grey Cable pink Cable blue Cable red

= = = =

Channel A

Signal rise time (typically, at C L = 25 pF, R L = 11 k Ω , 25 °C) Signal fall time (typically, at C L = 25 pF, R L = 11 k Ω , 25 °C)

R

180 ns 40 ns 90°e

Channel I (Index) Channel I (Index)

Channel A

Cable size 8 × 0.25 mm 2 Motor Cable white = Cable brown = Cable size 2 × 1.0 mm 2

Channel B

Index pulse width Operating temperature range  Moment of inertia of code wheel  Max. angular acceleration  Output current per channel 

R

Motor + Motor -

-40…+85 °C ≤ 0.6 gcm 2 250 000 rad s -2

Channel B

Channel I

± 20 mA

R

Channel I

Protection to

IP54

The index signal I is synchronized with channel A or B.

Terminal resistance R = typical 120 Ω

434 maxon



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