Product Information

KCI 1319
KBI 1335
Absolute Inductive
Rotary Encoders
without Integral Bearing
With additional measures
suitable for safety-related
applications with up to SIL311/2022

KCI 1319, KBI 1335
Rotary encoders for absolute position values• Robust inductive scanning principle• Consisting of a scanning unit and a rotor unit

2.35 ±0.3   43.3 ±0.5  A0.2 A

2 ±0.2

Z
  Z



3:1





Mating shaft
SteelAluminum

0.08 A 0.1 AT
 5.5
 7.5

 ± 0.1

B3x

M2

 0.1 A

 1.7
   

 0.35 ±0.5   

1.5 ±0.15

All drawings are shown with brakes released

A0.2 A  21 43.3 ±0.5
 39 ±0.3
 35 ±0.3







6.8 ±0.2(5.3)
3.3 ±0.2

A

Z
 25

Z

 0.2 B

 7.3

Rotor fastening via press-fitted hub      



3x

 25h6 









(25.25)  37






0.35 ±0.5  24.75

 

0.05 A

Rotor fastening via three axial countersunk head screws(

    

 2.4 ± 0.1 C  .2
 0 
 30
 .5





0.05 A 
 0.1 BA

1

4:1
Total height Tolerance= Bearing of mating shaft
Circular scale (screw9.8= Required mating dimensionsfastened version)± 1.2
AE KxI 13xx
= Measuring point for operating temperature
Disk/hub assembly
14.6= 15-pin PCB connector(press-fitted version)= Cylinder head screw: ISO 4762 M3x10 – 8.8 MKL (4x)= Ensure space for cable= Direction of shaft rotation for ascending position values= Additional and optional orientation possibility= TK/TKN, separate, with different versions possible; for mounting, see the respective dimension drawing=	Mounting clearance between circular scale surface and flange surface; compensation of mounting tolerances and thermal expansion;
dynamic motion permitted over entire range(with use of ATS software for mounting inspection, the display value for the mounting clearance is shown as 1 mm)
8 = Ensure space for electronics; see also the mating dimensions model
9 = Flange surface; ensure full-surface contact!
10 = Chamfer at start of thread is mandatory for material bonding anti-rotation lock3452

Product Information KCI 1319, KBI 1335    11/2022

km
1234567

Product Information KCI 1319, KBI 1335    11/2022

k
1
2678

= Bearing of mating shaft= Required mating dimensions= Scanning unit, separate; different versions possible=	Mounting clearance between circular scale surface and flange surface of scanning unit;
compensation of mounting tolerances and thermal expansion;
dynamic motion permitted over entire range= On the fine track ( 35.5 mm to  42.4 mm) after screw-fastening/press-fitting= For press-fitting parameters, see the Mounting Instructions=	
Steel shaft: Countersunk head screw: M2x6 ISO 14581-A2-70;
Aluminum shaft: Countersunk head screw: M2x8 ISO 14581-A2-70;
protrusion of screw head not permitted= Distance between scanning unit flange surface and circular scale surface= Circular scale surface= Use material bonding anti-rotation lock (at least medium strength)

3Specifications

KCI 1319 singleturnKBI 1335 multiturn

Functional safetyfor applications with up toAs a single-encoder system for monitoring functions and control-loop functions:• SIL 2, as per EN 61508 (further basis for testing: IEC 61800-5-3)• Category 3, PL d, in accordance with EN ISO 13849-1:2015
With additional measures as per document 1000344, suitable for safety-related applications with up toSIL 3 or Category 4, PL e
Safe in the singleturn range

PFH1)

SIL 2:  15 · 10–9 (probability of dangerous failure per hour)
SIL 3:  2 · 10–9

Safe position2)

Encoder: ±0.88° (safety-related measuring step SM = 0.35°)
Mechanical coupling: 0° (fault exclusion for the loosening of the shaft coupling and stator coupling,
designed for accelerations on the stator:  400 m/s2; on the rotor:  600 m/s2

Interface

EnDat 2.2

Ordering designation

EnDat22

Position values per revolution

524 288 (19 bits)

Revolutions–Calculation time tcal
Clock frequency≤ 5 µs≤ 16 MHz

System accuracy±90”

Electrical connection

15-pin PCB connector (with connection for external temperature sensor)

Cable length 100 m (see the EnDat description in the Interfaces of HEIDENHAIN Encoders brochure)Supply voltage

DC 3.6 V to 14 V

Power consumption3)(maximum)At 3.6 V: ≤ 650 mW
At 14 V: ≤ 700 mW

Current consumption (typical)

At 5 V: 95 mA (without load)

Normal operation at 5 V: 95 mA (without load)
Backup battery: 200 µA (rotating shaft)4)
20 µA (at standstill)

Part number

AE KCI 1319 scanning unit
1314405-01
Circular scale (screw-fastened version)
1314410-01
Disk/hub assembly (press-fitted version)
1314409-01

AE KBI 1335 scanning unit
1314406-01
Circular scale (screw-fastened version)
1314410-01
Disk/hub assembly (press-fitted version)
1314409-01

65 536 (16 bits)

Rotary encoder UP: DC 3.6 V to 14 V
Backup battery UBat: DC 3.6 V to 5.25 VSpecifications

KCI 1319 singleturn

KBI 1335 multiturnRotor*

Circular scale with inside hub diameter of 25 mm (press-fitted version)
Circular scale with circular hole pattern diameter of 30.5 mm (screw-fastened version)

Shaft speed 10 000 rpm

Moment of inertia

Disk/hub assembly: 6.3 · 10–6 kgm2
Circular scale: 1.16 · 10–6 kgm2

Angular acceleration of rotor1)

 1 · 105 rad/s2

Axial motion of measured shaft  ±0.5 mm
Vibration 55 Hz to 2000 Hz2)
Shock 6 ms

Stator: ≤ 400 m/s ; rotor: ≤ 600 m/s (EN 60068-2-6)≤ 2000 m/s2 (EN 60068-2-27)

22Operating temperature–40 °C to 115 °C

Trigger thresholdfor exceeded temperatureerror message

130 °C (measuring accuracy of internal temperature sensor: ±1 K)

Relative humidity

 93% (40 °C/21 d as per EN 60068-2-78), condensation excluded

Protection rating EN 60529

IP00 (read about insulation under General electrical informationin the Encoders for Servo Drivesbrochure)

Mass

AE + TK  0.03 kg
AE + TKN  0.05 kg* Please select when ordering
1)
With multiturn functionality in normal operation; maximum permissible acceleration in backup-battery mode upon request
2)
10 Hz to 55 Hz, constant over 6.5 mm peak to peak (stator), 10 mm peak to peak (rotor)

1)

For use at  1000 m above sea level ( 6000 m above sea level upon request)
Further tolerances may arise in the downstream electronics after position value comparison (contact mfr.)
3)
See General electrical information in the Interfaces of HEIDENHAIN Encoders brochure or at www.heidenhain.com
4)
At T = 25 °C; UBat = 3.6 V2)

4

Product Information KCI 1319, KBI 1335    11/2022

Product Information KCI 1319, KBI 1335    11/2022

5Mounting

The press-fitting process may be
performed only once for each disk/hub
assembly. For press-fitting, adhere to thematerial properties and conditions for themating surface stated in the relevant
documents for proper use. These
requirements must be followed, evenwhen new disk/hub assemblies are press-The KCI 1319/KBI 1335 is mounted eithervia screw-fastening of the circular scale orthrough press-fitting of the disk/hub
assembly, followed by mounting of thescanning unit. The disk/hub assembly isthereby either press-fitted onto the shaft,or the circular scale is screw-fastened to
the given shaft with three screws. The
scanning unit is aligned and mounted via
four holes on the customer’s mounting
surface.

fitted onto customer shafts that havealready been used. Once the lower limit of
the press-fit force has been exceeded, thepress-fit force being applied must remain
within the specified range for the rest of
the procedure, including until the final
position is reached.

Mounting accessories
ScrewsScrews (fastening screws) are not included in delivery; the M3x10 screw with material
bonding anti-rotation lock can be ordered separately.
KCI 1319
KBI 1335

ScrewsQuantity

Screw for fastening thescanning unit

ISO 4762 – M3×10 – 8.8 – MKL1) ID 202264-87 10 or 100

Fastening screw forcircular scale with a steel
mating shaft

ISO 14581 – M2×6 – A2 – 702)––Fastening screw forcircular scale with analuminum mating shaft

ISO 14581 – M2x8 – A2 – 702)––1)	With coating for material bonding anti-rotation lock (for information on use, see theEncoders for Servo Drives brochure)2)	Without anti-rotation lock; use at least a medium-strength material bonding anti-rotationlock

The following material properties and conditions must be complied with for the customer-side mounting design:
Mating stator

Mating shaft

Material

Aluminum

Steel

Aluminum

Mounting aid
To avoid damage to the cable, use the mounting aid to connect and disconnect the cable
assembly. Apply pulling force only to the connector of the cable assembly and not to thewires.

Tensile strength Rm≥ 220 N/mm2≥ 600 N/mm2≥ 220 N/mm2

ID 1075573-01

Yield strength Rp0.2 oryield point Re–≥ 400 N/mm2–

For more mounting information and mounting aids, see the Mounting Instructions
and the Encoders for Servo Drives brochure. The installation can be inspected with
the PWM 21 and the ATS software (see document 1082415).

Shear strength τm

130 N/mm2≥ 390 N/mm2≥ 130 N/mm2

Interface pressure PG≥ 250 N/mm2≥ 660 N/mm2≥ 250 N/mm2

Modulus of elasticity E(at 20 °C)

70 kN/mm2 to75 kN/mm2

200 kN/mm to215 kN/mm2

270 kN/mm2 to75 kN/mm2

Coefficient of thermal expansion therm(at 20 °C)≤ 25 · 10

Screw-fastened version:
10 · 10–6K–1 to17 · 10–6K–1

Screw-fastened version:≤ 25 · 10–6 K–1

Press-fitted version:
10 · 10–6K–1 to12 · 10–6K–1

Press-fitted version:
Not available

–6

K–1

Surface roughness RZ≤ 16 µm

Friction values

Lubrication at the joint surfaces is recommended. Mounting surfaces must be clean andfree of grease. Use screws and washers from HEIDENHAIN in their condition as delivered.

Tightening procedure

Use a signal-emitting torque wrench as per DIN EN ISO 6789, with an accuracy of ±6%

Mounting temperature

15 °C to 35 °C

6Product Information KCI 1319, KBI 1335    11/2022

Product Information KCI 1319, KBI 1335    11/2022

7

Electrical connection

CablesPin layout for KCI 13192

Output cables inside the motor housing with TPE single wires (8 × 0.16 mm ) and net sleeve without shield

8-pin M12 coupling or flange socket

Output cable with 15-pin PCB connector and8-pin M12 straight flange socket (male) with TPE
single wires for temperature sensor (2 × 0.16 mm2)

ID 1119952-xx

Output cable with 15-pin PCB connector and8-pin M12 straight flange socket (male)

ID 804201-xx

Output cable with 15-pin PCB connector and TPE
single wires for temperature sensor(2 × 0.16 mm2), and stripped cable end

ID 1119958-xx

Power supply1)

Output cable inside the motor housing with TPE single wires (8 × 0.16 mm2) and heat shrink tubing without a shield
Output cable with 15-pin PCB connector andstripped cable end

ID 640055-xx1)

1)

Serial data transmission

Other signals

82513476//

131114127891056UP

SensorUP0VSensor
0VDATA

DATA

CLOCK

CLOCK

T+T–Brown/
GreenBlueWhite/
GreenWhite

Gray

Pink

VioletYellowBrown

Green

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

Output cable for HMC 6:  3.7 mm EPG 1 × (4 × 0.06 mm2) + 4 × 0.06 mm2
Output cable with 15-pin PCB connector andcontact insert for 6-pin HMC 6 hybrid connecting
element (male) with TPE single wires fortemperature sensor (2 × 0.16 mm2),with cable clamp for shield connection

15-pin PCB connector

ID 1072652-xx

Pin layout for KBI 1335
8-pin M12 flange socket

15-pin PCB connector

Connecting element must be suitable for the maximum clock frequency used

Power supply
Further information:
For connecting cables and adapter
cables, see the Cables and Connectors
brochure.

Serial data transmission

Other signals

13111412789105682513476//

UPUBAT0 V1)

0 VBAT1)

DATA

DATA

CLOCK

CLOCK

T+T–Brown/
GreenBlueWhite/
GreenWhite

Gray

Pink

VioletYellowBrown

Green

UP = Power supply; UBAT = External buffer battery (false polarity can result in damage to the encoder)
Vacant pins or wires must not be used!
1)
Connected inside encoder

DR. JOHANNES HEIDENHAIN GmbH
Dr.-Johannes-Heidenhain-Str. 583301 Traunreut, Germany +49 8669 31-0
 +49 8669 32-5061
info@heidenhain.dewww.heidenhain.com

8

Product Information KCI 1319, KBI 1335    11/2022

1357027 · 02 · A · 02 · 11/2022 · 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:
Comply with the requirements described in the following documents to ensure correctand intended operation:• Operating Instructions
1357580• Technical Information Safety-Related Position Measuring Systems
596632-xx• Implementation in a safe control or inverter
533095-xx• Supplementary Catalog of Measures (SIL 3, PLe)
1000344-xx