Product Information

KCI 1319
KBI 1335
Absolute Inductive
Rotary Encoders without
Integral Bearing

11/2021KCI 1319, KBI 1335
Rotary encoders for absolute position values• Robust inductive scanning principle• Consisting of an AE scanning unit and a rotor unit

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



2 ±0.2

Z  Z

 

3:1

Required mating dimensions for AE KxI 13xx







 ± 0.1

B0.08 A
 0.1 A3x

M2 0.1 A 1.7   

1.5 ±0.15

All drawings with brakes released

A0.2 A  21



AZ
 25Z





6.8 ±0.2(5.3)
3.3 ±0.2

 43.3 ±0.5
 39 ±0.3
 35 ±0.3

   

 0.35 ±0.5

 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= Bearing of mating shaft
Circular scale (screw9.8= Required mating dimensions
fastened version)
AE KxI 13xx
= Measuring point forM3x10
operatingtemperature(4x)Disk/hub assembly
14.6= 15-pin PCB connector(press-fitted version)= M3x10 cylinder head screw (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 the circular scale surface and the 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 lock
km12345672Tolerance
1.2±±1.2

Product Information KCI 1319, KBI 1335    11/2021

k12345678= Bearing of mating shaft= Required mating dimensions= AE, separate, with different versions possible (KCI 1319/KBI 1335)=	Mounting clearance between the circular scale surface and the AE flange surface;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= Countersunk head screw: M2x6 ISO 14581-A2-70, protrusion of screw head not permitted= Distance between AE flange surface and circular scale surface= Circular scale surface= Use material bonding anti-rotation lock (at least medium strength)

Product Information KCI 1319, KBI 1335    11/2021

3

Specifications

KCI 1319 singleturnInterface

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

KBI 1335 multiturn65 536 (16 bits)

Specifications

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

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

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)

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

Operating temperature–40 °C to 115 °C

Supply voltage

DC 3.6 V to 14 V

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

Power consumption1) (max.)

At 3.6 V: ≤ 650 mW
At 14 V: ≤ 700 mW

Trigger thresholdof temperature exceedance
error messageRelative humidity 93 % (40 °C/21 d as per EN 60068-2-78), condensation excluded

Current consumption (typical)

At 5 V: 95 mA (without load)

Protection rating EN 60529

IP00

Mass

AE + TK  0.03 kg
AE + TKN  0.05 kg

Part number1)
2)

4

AE KCI 1319 scanning head
1314403-01
Circular scale (screw-fastened version)
1314410-01
Disk/hub assembly (press-fitted version)
1314409-01

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

Normal operation at 5 V: 95 mA (without load)
Backup battery: 200 µA (rotating shaft)2)
20 µA (at standstill)
AE KBI 1335 scanning head
1314404-01
Circular scale (screw-fastened version)
1314410-01
Disk/hub assembly (press-fitted version)
1314409-01

22* Please select when ordering1)
With multiturn functionality in normal operation; maximum permissible acceleration in backup-battery mode upon request2)
10 Hz to 55 Hz, 4.9 mm constant peak to peak

See General electrical information in the Interfaces of HEIDENHAIN Encoders brochure or at www.heidenhain.com
At T = 25 °C; UBat = 3.6 V

Product Information KCI 1319, KBI 1335   

11/2021

Product Information KCI 1319, KBI 1335   

11/20215

Mounting

The press-fitting process may be performed
only once for each disk/hub assembly. For
the press-fit, comply with the material
properties and conditions for the mating
surface stated for proper use in the relevant
documents. These requirements must befollowed, even when new disk/hub

The KCI 1319/KBI 1335 is mounted either
via screw-fastening of the circular scaleor through press-fitting of the disk/hub
assembly and mounting of the scanningunit. The disk/hub assembly is thereby
either press-fitted onto the shaft, or thecircular scale is screw-fastened to thegiven shaft with three screws. The
scanning unit is aligned and mounted via
four holes on the customer’s mounting
surface.

assemblies are press-fitted onto customer
shafts that have already been used. Oncethe lower limit of the press-fit force has
been exceeded, the press-fit force being
applied must remain within the specified
range for the rest of the procedure until theend 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

ISO 14581-M2×6-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-rotation
lock

The following material properties and conditions must be complied with for thecustomer-side mounting design:

MaterialTensile strength Rm

Mating stator

Mating shaft

AluminumSteel2≥ 220 N/mm

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.
ID 1075573-01

2≥ 600 N/mm

For more mounting information and mounting aids, see the Mounting Instructions
and the Encoders for Servo Drives brochure. The mounting quality can be inspectedwith the PWM 21 and the ATS software (see Document 1082415).

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

Shear strength τm

130 N/mm2≥ 390 N/mm2

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

Modulus of elasticity E(at 20 °C)

70 kN/mm2 to75 kN/mm2

200 kN/mm to215 kN/mm2

Coefficient of thermal expansion therm ≤ 25 · 10–6 K–1(at 20 °C)

Screw-fastenedversion:
10 · 10–6K–1 to17 · 10–6K–1

2

Press-fitted version:
10 · 10–6K–1 to12 · 10–6K–1
Surface roughness RZ≤ 16 µm

Friction values

Mounting surfaces must be clean and free ofgrease. Use screws and washers fromHEIDENHAIN 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    11/2021

Product Information KCI 1319, KBI 1335    11/2021

7

Electrical connection

CablesPin layout for KCI 1319
2Output 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 and 8-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 x 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 endID 640055-xx1)

1)

Serial data transmission

Other signals

82513476//

131114127891056UPSensor
UP0VSensor
0VDATA

DATA

CLOCK

CLOCK

T+T–Brown/
GreenBlueWhite/
GreenWhite

Gray

Pink

VioletYellow

Brown

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), withcable 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

GrayPink

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       
   
 

8Product Information KCI 1319, KBI 1335   

11/20211335661 · 01 · C · 02 · 11/2021 · 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.
Further information:
Comply with the requirements described in the following documents to ensure correctand intended operation:• Brochure: Encoders for Servo Drives
208922-xx• Brochure: Cables and Connectors
1206103-xx• Brochure: Interfaces of HEIDENHAIN Encoders
1078628-xx• Mounting Instructions: AE KCI 1319, KBI 1335
1335452-xx• Mounting Instructions: TK KxI 13xx, TKN KxI 13xx1343368-xx