Product Information

LS 373LS 383
Incremental Linear Encoders

06/2022

LS 300 series(46)

8880
74

32135.30.05/13 AP

5.5 ±50 ±0.3

M4 40.1/80 F K

0.1 F K
0.03

KP

35.5 ±5K

1812A

1853

K 1 ±0.3

CL

ML+1055.5(ML+94) ±0.4 K
0.1 F KPP

65 ±20LS 3732)

LS 383

Measuring standard
Coefficient of linear expansion

Glass scale–6 –1
Þtherm  8 · 10 K

Accuracy grade±5 µm

Measuring length ML*in mm

70770

Reference marks

LS 3x3: One reference mark in the middle3)LS 3x3 C: Distance-codedInterface

 1 VPP

Signal period

20 µm

Integrated interpolation–

1-fold5-fold10-fold

20-fold

Measuring step–

5 µm

1 µm

0.5 µm0.25 µm

Supply voltage
Without load

5 V ±0.25 V/< 150 mA

Electrical connection

PUR connecting cable and PUR cable with metal armor; cable outlet to the right on the mounting block

Cable length

3 m, 6 m

Connecting element

15-pin D-sub connector (male)
15-pin D-sub connector (female)
12-pin M23 connector (male)

Traversing speed 60 m/min

Required moving force5NVibration 55 Hz to 2000 Hz
Shock 6 ms

 100 m/s
 200 m/s2

Operating temperature

0 °C to 50 °C

Protection IEC 60529

IP53

Mass without cable

0.3 kg + 0.57 kg/m of measuring length

12K56

4C

4.8SW8
4.3

0.1/80 F

4.50 ±2

SW816.3
4(26.3)640 ±201)

Specifications

MLLS 477 (C), LS 487 (C)Available on short notice as a replacement device
Scanning-unit dimensions may vary

LS 3x3 (C)Starting value for version with distance-codedreference marks between 0 mm and 3200 mm

8.588CL

7.3F= Machine guideway
ML = Measuring length
P= Measuring points for alignment= 0 to ML
C = Connecting cable
CL = Cable length
K= Required mating dimensions

PUR cable

4Cable with metal armor

1256
97.5
115

PUR cable withmetal armor
127

120
820

170
870

220920270	 320	 370	 420 470
970
1020 1140 1240

520

570

620

670

720

 TTL

15-pin D-sub connector (male)
9-pin D-sub connector (male)
12-pin M23 connector (male)2* Please select when ordering1)
The LS 487 is available as a replacement device through the HEIDENHAIN Service department on short notice2)
The LS 477 is available as a replacement device through the HEIDENHAIN Service department on short notice3)
Starting value for version with distance-coded reference marks between 0 mm and 3200 mm

2

Product Information LS 373/LS 383    06/2022

Product Information LS 373/LS 383    06/2022

3Pin layoutTTL① 9-pin D-sub connector (male)② 15-pin D-sub connector (male)Power supply

Incremental signals③ 12-pin M23 connector (male)

Other signals

①771)

661)

2

345

98///②4122

10193

11147135/6/8

15③

122

10115681

34

7/9UP

Sensor
UP0V

Sensor
0V

Ua1¢

Ua2£

Ua0¤

¥VacantReserved,3)
do not assign

GreenYellow

PinkRedBrown

GrayBlue/Ecru

BlackWhite2)

Cable shield connected to housing; UP = Power supply voltage
Sensor: The sense line is connected in the encoder with the corresponding power supply line.
Vacant pins or wires must not be used!
1)

Only ID 617513-xx, ID 626015-xx
No connection: ID 309783-xx, ID 309784-xx, ID 310196-xx, ID 310199-xx
3)Conversion from TTL to 11 µAPP for PWT; otherwise not assigned2)

1 VPP① 15-pin D-sub connector (male)② 15-pin D-sub connector (female)Power supply③ 12-pin M23 connector (male)

Incremental signals

Other signals1)

①4122

10

1

93

1114

75/6/8

1315

②

192

113

4

6

710

12

13/14/
15

8

5

③

122

10

115

68

1

3

4/

79UP

Sensor
UP0V

Sensor
0V

A+

A–

B+

B–

R+R–

Black

WhiteGreen

YellowPinkRedBrown

Gray

Vacant Reserved, Reserved,
do notdo notassign2)
assign3)/BlueEcru

1)

No connection: ID 310196-xx
Serial interface (clock)3)
Serial interface (data)2)       
    

4

Product Information LS 373/LS 383    06/2022

1338233 · 00 · C · 02 · 06/2022 · PDF

This Product Information document supersedes all previous editions, which thereby
become invalid. The basis for ordering from HEIDENHAIN is always the Product
Information document edition valid when the order is placed.

More information:To ensure proper and intended use, comply with the specifications in the following
document:• Brochure: Digital Readouts / Linear Encoders:
208864-xx