Encoder HEDL 5540 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) Counts per turn Number of channels Max. operating frequency (kHz) Max. speed (rpm) Shaft diameter (mm)
Part numbers
110518
Type
500 3 100 12 000 8
RE 50, 200 W 291 RE 65, 250 W 292 Modular system + Motor Page
+ Gearhead
+ Brake Page
Page
Overall length [mm] / • see Gearhead
128.7 157.3 •
RE 50, 200 W 291 GP 52, 4.0 - 30.0 Nm 387
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
1 N.C. 2 V CC 3 GND 4 N.C.
Line receiver Recommended IC's:
GND V CC
EIA Standard RS 422
- MC 3486 - SN 75175 - AM 26 LS 32
5 Channel A 6 Channel A 7 Channel B 8 Channel B
Channel A
Signal rise time (typically, at C L = 25 pF, R L = 2.7 k Ω , 25 °C) Signal fall time (typically, at C L = 25 pF, R L = 2.7 k Ω , 25 °C)
R
180 ns 40 ns 90°e
Channel A
9 Channel I (Index) 10 Channel I (Index) Pin type DIN 41651/ EN 60603-13 flat band cable AWG 28
Channel B
Index pulse width Operating temperature range Moment of inertia of code wheel Max. angular acceleration
R
-40…+100 °C ≤ 0.6 gcm2 250 000 rad s-²
Channel B
Channel I
© 2026 maxon. All rights reserved. April edition. Subject to change. ±20 mA The index signal I is synchronized with channel A or B. Output current per channel
R
Channel I
Terminal resistance R = typical 120 Ω
maxon 433
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