Encoders for Elevators
HEIDENHAIN Corporate Group solutions for your requirements

HEIDENHAIN AMO RENCO

Solutions with additional benefits fortoday’s elevator requirements
Our encoders ensure full-elevator safety and comfort by monitoring the main motor,
door motor and shaft copying system. The HEIDENHAIN, AMO and RENCO brands
are specialists for your elevator applications, serving conventional and upcomingelevator technologies.

Main motor
 High signal quality
 Online self-diagnosis
 High reliability

Shaft copying andspeed monitoring Absolute position measurement
 Large permissible axial and radial loads
 High signal quality

Door motor Compact form factor
 Electronic adjustment
 Easy integration

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Main motor– Condition monitoring– Brake monitoring

Next-generation elevator technology
The demands on elevator complexity and travel height are growing. Today’s elevators havebecome high-tech passenger transport systems, a far cry from the simple hoists of previousgenerations.

Shaft copying andspeed monitoring

Door motor

Safety and comfort are non-negotiable requirements in modern elevators. Vital to meetingthese requirements are elevator encoders from HEIDENHAIN, AMO and RENCO. Installedon the main motor, door motor and shaft copying system, our encoders work tirelessly toensure smooth travel, correct arrival and efficient door operation. Beyond their extreme
reliability in these applications, our encoders can also monitor other elevator functions.
The biggest factor in an elevator’s speed, comfort and overall performance is its motor
control system. More advanced elevator motors, such as gearless designs, require carefully
selected encoders and other motion control components. Rotary encoders are also essential
in elevator door motors and digital shaft copying systems. With an extensive range ofproducts, HEIDENHAIN, AMO and RENCO offer the optimal solutions for your elevator
control needs.

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Key requirements for today’s elevators:
 Optimal ride comfort
 Accurate car arrival Smooth starting and stopping
 Impeccable reliability
 Speed control
 Compatibility with different travel heights

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High-performance motor feedback
Robust, reliable and high-resolution
These qualities make HEIDENHAIN andAMO rotary encoders trusted solutions formain motor feedback on conventional traction
elevators.
High-resolution rotary encoders are the go-to choice forposition feedback on main elevator motors. Rotary encoders
from HEIDENHAIN and AMO deliver excellent signal quality
and high accuracy for exact positioning and high-quality
speed control. A rich selection of form factors, mounting
types and scanning technologies make them suitable for avariety of motor types, including disc motors, internal rotor
motors and external rotor motors.
Rotary encoder requirements for optimal motion control: High positioning accuracy
 Rigid connection to the shaft
 High natural frequency or wide runout tolerances
for the coupling Easy installation
 Rugged design
 High-performance data interfaces

67Rotary encoders for your elevator motor:
Analog or serial, with added monitoring data

KCI 419 Dplus: position feedback andbrake monitoring
The KCI 419 Dplus inductive rotary encoder does more than provide
position feedback on traction elevator motors. It also tracks the braketemperature and detects the brake stroke, all without the help ofmicroswitches, making it an alternative for brake monitoring. The
encoder’s robust EnDat interface relays the extra brake data to
downstream electronics, where the brake status (released or engaged)
and the level of brake wear can be determined.
Your operation and maintenance benefits:
The KCI 419 Dplus provides elevator operators with greater system
availability and reliability, as well as significantly less maintenance,cabling and installation work.
ERN 400/1300, ECN 400/1300

AEF 1300

KCI 419 Dplus

Rotary encoders withanalog output signals

Rotary encoder withpurely serial output signals

Rotary encoder with purely serial
output signals and brake monitoring

Area of application• Main-motor control

Area of application• Main-motor control

Area of application• Main-motor control

Characteristics• Absolute 1 VPP interface or analog 1 VPP output signals• High signal quality• Stator coupling for easy axial mounting or forcompensation of axial error

Characteristics• Absolute interface with purely serial output signals• Superb EMC robustness thanks to purely serial datatransmission• External and internal temperature measurement• Stator coupling for easy axial mounting or forcompensation of axial error

Characteristics• Absolute interface with purely serial output signals• Brake release monitoring• Brake wear monitoring• Temperature monitoring• Online self-diagnosis• Digital data transmission

Specifications• Position values per rev.
• Operating temperature• Interface		

Specifications• Position values per rev.
• Measured axial brake stroke• Operating temperature• Interface

Specifications• Measuring steps per rev.	23 bits after interpolation• Operating temperature–40 °C to +100 °C• Interface
1 VPP, EnDat01

823 bits–40 °C to +100 °C
EnDat22Extra functionality: operating data fordownstream electronics
 Position feedback Functional safety
 Online diagnostics
 Sensor information
 Electronic ID label
 Datum shift Production data

19 bits
0.5 mm to 1.6 mm–40 °C to +100 °C
EnDat229

ERN 100, ECN 100

KCI 100/1300, KBI 100/1300

WMK 3010S/WMR 3010A

Absolute rotary encoders
for large shafts

Absolute inductive rotary encoders
for large shafts

Incremental inductive rotary encoders withadditional operating data

Area of application• Main-motor control

Area of application• Main-motor control

Area of application• Main motors installed in the elevator shaft

Characteristics• Absolute interface with purely serial output signals or
absolute 1 VPP interface oranalog 1 VPP output signals• High signal quality• Hollow shaft sizes: 25 mm and 50 mm• Stator coupling

Characteristics• Absolute interface with purely serial output signals• Compact modular design for easy integration• Hollow shaft sizes: 25 mm, 30 mm and 40 mm• Immune to magnetic fields and contamination

Characteristics• Integrated operating data collection• Measuring-ring diameter range: 60 mm to 163 mm• Compact form factor• Immunity to magnetic fields and contamination

Specifications• Position values per rev.
• Axial motion of motor shaft• Operating temperature• Interface			Specifications• System accuracy		• Operating temperature• Interface			Specifications• Measuring steps per rev. Up to 23 bits after interpolation• Operating temperature–40 °C to +100 °C• Interface			
1 VPP, EnDat01, EnDat22

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Up to 20 bits
≤ ±0.5 mm–40 °C to +115 °C
EnDat22±25 µm–10 °C to +110 °C
1 VPP

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Shaft copying and speed monitoring

Rotary encoders for door motors

Measuring an elevator car’s exact position in the shaft, and relaying this data
to the controller, is essential for guaranteeing smooth braking and accurate carpositioning. This is the job of shaft copying systems, which benefit greatly from
HEIDENHAIN absolute rotary encoders. Here’s why:

Elevators don’t wait as long at their destinations, and can therefore carry more
people throughout the day, if their doors open and close with maximum speed
and accuracy. This requires accurate and dynamic position measurement on thedoor motor. HEIDENHAIN rotary encoders for door motors deliver the positionfeedback and compact form factor needed in these applications. All of thesemodels have an outside diameter of less than 40 mm.

 The car’s absolute position isn’t lost after a power outage
 Always knowing the car’s absolute position enables steady control right up
to its arrival point

ECI 1118
Absolute inductive rotary encoder
Area of application• Door motors
Characteristics• Absolute interface with purely serial output signals• Easy-to-integrate design• Compact form factor• Immunity to magnetic fields and contamination
Specifications• Position values per rev.
• Axial motion of motor shaft• Operating temperature• Interface			ExN 400

R35iL

Rotary encoder unit
for high bearing loads

Incremental rotary encoder
for block commutation

Area of application• Shaft copying

Area of application• Door motors

Characteristics• Absolute multiturn rotary encoder for position feedback• High signal quality• Bearing unit for high axial and radial loads

Characteristics• Feedback system for stepper and BLDC motors• High signal quality thanks to OPTO-ASIC technology• Electronic commutation adjustment• Compact design (height: 8.6 mm)

Specifications• Measuring steps per rev. Up to 25 bits
• Revolutions			
4096• Operating temperature–40 °C to +100 °C• Interface			
EnDat01, EnDat22• Bearing load			Axial 150 N, radial 350 N

1218 bits≤ ±0.4 mm–20 °C to +115 °C
EnDat22Specifications• Signal periods per rev.
Up to 10 000• Commutation		U, V and W signal tracks forup to 32 motor pole pairs• Operating temperature–30 °C to +115 °C

13Ready for tomorrow’s cableless,horizontal elevators

HEIDENHAIN: LINA 200
Absolute linear encoder for cableless elevators

AMO: WMKA
Switch between vertical and horizontal travel

Freed from the constraints of a cable, future elevators will be able to travel both vertically and horizontally.
HEIDENHAIN has already developed an absolute inductive linear encoder for these applications: the LINA 200.
The absolute position is calculated based on different signal periods arising from two scale tracks within theencoder’s graduation carrier.

Future cableless elevators will switch between vertical and horizontal travel at in-shaft swivel joints driven by
high-power torque motors. These motors can be controlled using the position feedback provided by WMKA
modular angle encoders from AMO or exposed linear encoders such as the LIC series from HEIDENHAIN.

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LINA 200WMKA

Absolute inductive linear encoder

Absolute modular angle encoder

Area of application• Main-motor control (linear actuator)

Area of application• Swivel joints in cableless elevators

Characteristics• Absolute encoder for linear motor control• High signal quality for superb passenger comfort• Wide runout tolerances thanks to bearingless design

Characteristics• Measuring-ring diameter range: 82 mm to 650 mm• Compact form factor• Universal scanning head design

Specifications• Resolution			• Operating temperature• Interface			Specifications• Resolution			• Operating temperature• Interface			18 bits after interpolation+5 °C to +45 °C
EnDat22

18 bits to 25 bits
–10 °C to +85 °C
EnDat2215

HEIDENHAIN specializes in high-accuracy
measurement and control technology

RENCO

RENCO is known for its flat-profile,easy-to-mount rotary encoders

AMO

AMO develops highly robust inductive
encoders for linear and rotary
applications

Discover more about our solutions
 elevator.heidenhain.com
 heidenhain.com/rotary-encoders
 structural-monitoring.heidenhain.com

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

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

AMO Automatisierung Messtechnik Optik GmbH
Nöfing 4A-4963 St. Peter am Hart, Austria +43 7722 658 56-0
| +43 7722 658 56-11
office@amo.at

www.heidenhain.com

www.heidenhain.com
www.renco.com

www.amo-gmbh.com

1413512-20 · 1 · 06/2023 · CD · Printed in Germany