maxon Product Range 2025/26

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. 90)

Stock program Standard program Special program (on request) Counts per turn Number of channels Max. operating frequency (kHz) Max. speed (rpm)

Part numbers

137959

Type

500 3 100 12 000

overall length

overall length

Modular system + Motor

+ Gearhead

+ Brake Page

Page

Page

Overall length [mm] / • see Gearhead

RE 40, 150 W 163

125.1

RE 40, 150 W 163 GP 42, 3 - 15 Nm 439 RE 40, 150 W 163 GP 52, 4 - 30 Nm 443

• • • • • • • • • • • • • •

RE 40, 150 W 163

AB 28 587-588

135.6

RE 40, 150 W 163 GP 42, 3 - 15 Nm 439 AB 28 587-588 RE 40, 150 W 163 GP 52, 4 - 30 Nm 443 AB 28 587-588

EC 45, 150 W 273

126.8

EC 45, 150 W 273 GP 42, 3 - 15 Nm 439 EC 45, 150 W 273 GP 52, 4 - 30 Nm 443

EC 45, 150 W 273

AB 28 588

135.6

EC 45, 150 W 273 GP 42, 3 - 15 Nm 439 AB 28 588 EC 45, 150 W 273 GP 52, 4 - 30 Nm 443 AB 28 588

EC 45, 250 W 274

159.6

EC 45, 250 W 274 GP 42, 3 - 15 Nm 439 EC 45, 250 W 274 GP 52, 4 - 30 Nm 443-444 EC 45, 250 W 274 GP 62, 6.2 - 38.5 Nm 445

EC 45, 250 W 274

AB 28 588

168.4

EC 45, 250 W 274 GP 42, 3 - 15 Nm 439 AB 28 588 EC 45, 250 W 274 GP 52, 4 - 30 Nm 443-444 AB 28 588 EC 45, 250 W 274 GP 62, 6.2 - 38.5 Nm 445 AB 28 588

EC 60, 400 W 275 EC 60, 400 W 275 EC 60, 400 W 275 GP 81, 15.4 - 92.3 Nm 446 EC 60, 400 W 275 GP 81, 15.4 - 92.3 Nm 446 AB 41 AB 41

177.3 214.9 •

590 590

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

Pin allocation

Connection example

5 V ± 10% 55 mA DS26LS31 90°e ± 45°e

Cable white = 2 V CC 5 VDC Cable brown = 3 GND Cable green = 5 Channel A Cable yellow = 6 Channel A Cable grey = 7 Channel B Cable pink = 8 Channel B Cable blue = 9 Channel I (Index) Cable red = 10 Channel I (Index) Cable size 8 × 0.25 mm 2

Line receiver Recommended IC's:

GND V CC

EIA Standard RS 422

- MC 3486 - SN 75175 - AM 26 LS 32

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 A

Channel B

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

R

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

Channel B

Channel I

R

± 20 mA

Channel I

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

Terminal resistance R = typical 120 Ω

540 maxon sensor 

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