General Catalog

Precision Graduations

Linear Encoders

Length Gauges

Angle Encoders

Rotary Encoders

Contouring Controls

3-D Touch Probes

Digital Readouts

December 2004

DR. JOHANNES HEIDENHAIN GmbH

Develops and manufactures linear and angular encoders, rotary encoders, digital readouts, and numerical controls. HEIDENHAIN supplies its products to manufacturers of machine tools, and of automated machines and systems, in particular for semiconductor and electronics manufacturing. HEIDENHAIN is represented in 43countries—mostly with wholly owned subsidiaries. Sales engineers and service technicians support the user on-site withtechnical information and servicing.This General Catalog offers you an overview of the HEIDENHAIN product program.

Contents

Precision Graduations—the Foundation for High Accuracy

Length Measurement

Sealed Linear Encoders

Exposed Linear Encoders

Length Gauges

Angle measurement

Angle Encoders

Rotary Encoders

Machine Tool Control

Contouring Controls for Milling Machines and Machining Centers

Programming Station

Tool and Workpiece Setup and Measurement

Tool Touch Probe

Workpiece Touch Probes

Measured Value Acquisition and Display

Digital Readouts

Measured Value Displays for Length and Angle

Counter Cards
 

Fundamentals and Processes
 

The high quality of HEIDENHAIN products
depends on special production facilities and
measuring equipment. Masters and
submasters for scale manufacturing are
produced in a clean room with special
measures for temperature stabilization and
vibration insulation. The copying machines
and the machines required for the
manufacture and measurement of linear
and circular graduations are largely
developed and built by HEIDENHAIN.
Linear scale inspection station Measuring
 machine for linear scales.

Our competence in the area of linear and
angular metrology is reflected by a large
number of customized solutions for users.
These include in particular the measuring
and inspection devices developed and built
for standards laboratories as well as angle
encoders for telescope projects and
satellite receiving antennas. Of course the
products in the standard HEIDENHAIN
product program profit from the knowledge
gained.

  Precision Graduations—
the Foundation for High Accuracy

The heart of a HEIDENHAIN encoder is its
measuring standard, usually in the form of
a grating with typical line widths of 0.25 µm
to 10 µm. These precision graduations are
manufactured in a process invented by
HEIDENHAIN (e.g. DIADUR or AURODUR)
and are a decisive factor in the function and
accuracy of encoders. They consist of lines
and gaps at defined intervals with very little
deviation, forming structures with very high
edge definition. These graduations are
resistant to mechanical and chemical
influences as well as to vibration and
shock. They have a defined thermal behavior.
Phase grating with approx. 0.25 µm grating height
DIADUR and AURODUR graduations on various carrier materials

Phase gratings

Special manufacturing processes make it
possible to produce three-dimensional
graduation structures, possessing special
optical characteristics. The structure widths
are in the range of a few microns down to
quarters of a micron.

SUPRADUR

Graduations manufactured with the
SUPRADUR process act optically like
three-dimensional phase gratings, but they
have a planar structure and are therefore
particularly insensitive to contamination.

MAGNODUR

Thin magnetically active layers in the
micron range are structured for very fine,
magnetized graduations.
DIADUR

DIADUR precision graduations are
composed of an extremely thin layer of
chromium on a substrate—usually of glass
or glass ceramic. The accuracy of the
graduation structure lies within the micron
and submicron range.

AURODUR

AURODUR graduations consists of highly
reflective gold lines and matte etched gaps.
AURODUR graduations are usually on steel
carriers.

Length Measurement

Sealed linear encoders are available with
_ Full-size scale housing
For high vibration rating in up to 30 m
measuring length
_ Slimline scale housing
For limited installation space in up to
1240 mm measuring length, up to
2040 mm with mounting spar
The aluminum housing of a HEIDENHAIN
sealed linear encoder protects the scale,
scanning carriage, and its guideway from
chips, dust, and fluids. Downward-oriented
elastic lips seal the housing. The scanning
carriage travels in a low-friction guide within
the scale unit. It is connected to the
external mounting block by a coupling that
compensates unavoidable misalignment
between the scale and the machine
guideways.
Coupling Scanning unit DIADUR scale Housing
Sealing lips Mounting block Adapter cable Sealing lips
Exposed linear encoders
Exposed linear encoders from
HEIDENHAIN operate with no mechanical
contact between the scanning head and
the scale or scale tape. Typical areas of
application for these encoders include
measuring machines, comparators
and other precision devices in linear
metrology, as well as production and
measuring equipment, for example in
the semiconductor industry.
_ Accuracy grades of ± 0.5 µm and better
_ Measuring steps to 0.001 µm (1 nm)
_ Measuring lengths up to 30 m (100 ft)
_ No friction between scanning head and
scale
_ Small dimensions and low weight
_ High traversing speed
Sealed linear encoders
Sealed linear encoders from HEIDENHAIN
are protected from dust, chips and splash
fluids and are ideal for operation on
machine tools.
_ Accuracy grades as fine as ± 0.2 µm
_ Measuring steps as fine as 0.1 µm
_ Measuring lengths up to 30 m (100 ft)
_ Fast and simple mounting
_ Large mounting tolerances
_ High acceleration load capacity
_ Protection against contamination

With incremental linear encoders, the
current position is determined by starting at
a datum and counting measuring steps, or
by subdividing and counting signal periods.
Incremental encoders from HEIDENHAIN
feature reference marks, which must be
scanned after switch-on to reestablish the
datum. This process is especially simple
and fast with distance-coded reference
marks. After traverse of no more than
20 mm (LS, LF) or 80 mm (LB), the display
value is shown with respect to the datum
as it was last defined.
Absolute linear encoders from
HEIDENHAIN require no previous traverse
to provide the current position value. The
encoder transmits the absolute value
through the EnDat interface or another
serial interface.
Length gauges
Length gauges from HEIDENHAIN feature
integral guideways for the plunger. They
are used to monitor measuring equipment,
in industrial metrology, and also as position
encoders.
_ Accuracy grades as fine as ± 0.1 µm
_ Measuring steps to 0.005 µm (5 nm)
_ Measuring lengths up to 100 mm
_ High measuring accuracy
_ Available with automated plunger drive
_ Simple mounting

Sealed Linear Encoders Series Page
The recommended measuring steps listed
in the table refer primarily to position
measurements. Smaller measuring steps
are possible in particular for applications in
rotational speed control, e.g. on direct
drives. The sinusoidal output signals make
it possible to attain higher interpolation
factors up to 4096.
8
LC, LF, LS, LB Sealed Linear Encoders
with full-size scale housing
Linear encoders with full-size scale
housing are available for measuring
lengths up to 30 m (100 ft). They are
characterized particularly by high tolerance
to vibration.
The incremental encoders of the LF type
feature measuring standards with relatively
fine grating periods. This makes them
particularly attractive for applications
requiring very high repeatability.
Linear encoders of the LC and LS types
serve as standard encoders for use on
machine tools, but are also designed for
measuring and inspection tasks.
Absolute linear encoders of the LC product
family provide the absolute position
value. They also output incremental
signals. Because of their high accuracy and
defined thermal behavior, LC absolute
linear encoders, like the LS 100 series
linear encoders, are especially well suited
for NC applications. The LS 600 series
incremental linear encoders are used for
simple positioning tasks, for example on
manual machine tools.
The LB type of incremental linear encoders
were conceived for very long measuring
lengths up to 30 meters (100 ft). Their
measuring standard—a steel tape with
AURODUR graduation—is delivered as a
single piece, and after the housing sections
have been mounted, is pulled into the
housing, drawn to a defined tension and
fixed at both ends to the machine casting.
LF 183
_ For very high repeatability
_ Thermal behavior similar to steel or cast
iron
_ High vibration rating
_ Two mounting attitudes
LC 182
_ For absolute position measurement
_ Additional incremental signals _1 VPP
_ Defined thermal behavior
_ High vibration rating
_ Two mounting attitudes
LS 100 series
_ For NC machines
_ Defined thermal behavior
_ High vibration rating
_ Two mounting attitudes
LS 600 series
_ Typical for manual machines
_ Easy mounting
LB 382
_ For large measuring lengths up to
30 m (100 ft)
_ Defined thermal behavior
_ High vibration rating
_ Two mounting attitudes
9
Incremental Absolute
LF 183 LS 186
LS 176
LS 623
LS 603
LB 382 LC 182
LC 192
Measuring standard DIADUR phase grating on steel
DIADUR glass scale
DIADUR glass scale
AURODUR steel scale
DIADUR glass scale
Incremental signals
1 VPP LS 186:_1 VPP
LS 176:_TTL
LS 623:_TTL
LS 603:_11 µAPP
_1 VPP _1 VPP
Signal period 4 µm 20 µm
LS 176:4 µm/2 µm
20 µm 40 µm 20 µm
Data interface – EnDat1)/
Fanuc/Mitsubishi
Accuracy grades ± 3 µm, ± 2 µm ± 5 µm, ± 3 µm ± 10 µm ± 5 µm ± 5 µm, ± 3 µm
Recommended
measuring steps
1 µm to 0.1 µm 1 µm and 0.5 µm 10 µm and 5 µm 10 µm to 0.1 µm 1 µm to 0.1 µm
Meas. lengths (ML) 140 to 3040 mm 170 to 3040 mm 440 to 30040 mm 140 to 3040 mm
Reference mark One or distance-coded –
1) PROFIBUS-DP via gateway
10
LC, LF, LS Sealed Linear Encoders
with slimline scale housing
Sealed linear encoders with slimline scale
housing are primarily used where
installation space is limited. They are
available in up to 1240 mm measuring
length, up to 2040 mm with mounting spar.
The incremental encoders of the LF type
feature measuring standards with relatively
fine grating periods. This makes them
particularly attractive for applications
requiring very high repeatability.
Linear encoders of the LC and LS types
serve as standard encoders for use on
machine tools, and also for measuring and
inspection tasks.
Absolute linear encoders of the LC type
provide the absolute position
value—without any previous traverse
required. Incremental signals are also
provided. Like the LS 400 series linear
encoders, their high accuracy and defined
thermal behavior make them especially
well suited for NC applications. The
LS 300 series incremental linear encoders
are used for simple positioning tasks, for
example on manual machine tools.
Simple installation with mounting spar
The use of a mounting spar can be of great
benefit when mounting slimline linear
encoders. They can be fastened as part of
the machine assembly process, so that
later the encoder can be easily clamped as
a final step. Easy exchange also facilitates
servicing.
The mounting spar is optional for
measuring lengths up to 1240 mm. For
larger measuring lengths up to 2040 mm,
the mounting spar is included in delivery.
Clamping spring
Scale housing
Scanning unit
Mounting spar
Stop
LF 481
_ For very high repeatability
_ High resolution
_ Thermal behavior similar to steel or cast
iron
LC 481
_ For absolute position measurement
_ Complementary incremental signals
_1 VPP
_ Defined thermal behavior
LS 400 Series
_ For NC machines
_ Defined thermal behavior
LS 300 Series
_ Typical for manual machines

Sealed Linear Encoders Series Page
with full-size scale housing For absolute position measurement
For very high repeatability

LC 100
LF 100
LS 100
LS 600
LB 300
8
with slimline scale housing For absolute position measurement
For very high repeatability
For NC machines
Typically for manual machines

LC 400
LF 400
LS 400
LS 300
10
Exposed Linear Encoders Accuracy grades better than ± 1 µm
For two coordinates
Accuracy grades to ± 3 µm

LIP
PP
LIDA, LIF
12
13
14
Length Gauges Accuracy ± 0.1 µm
Accuracy ± 0.2 µm
Accuracy to ± 0.5 µm
Accuracy ± 1 µm
HEIDENHAIN-CERTO
HEIDENHAIN-METRO
HEIDENHAIN-METRO
HEIDENHAIN-SPECTO

_________________
Incremental Absolute
LF 481 LS 486
LS 487
LS 476
LS 323
LS 303
LC 481
LC 491
LS 476:_TTL
LS 323:_TTL
LS 303:_11 µAPP _1 VPP
Signal period 4 µm 20 µm
LS 476:4 µm/2 µm
20 µm 20 µm

Data interface EnDat1) Fanuc/Mitsubishi
Accuracy grades ± 5 µm, ± 3 µm ± 10 µm ± 5 µm, ± 3 µm
Recommended measuring steps:

1 µm to 0.1 µm 1 µm and 0.5 µm 10 µm and 5 µm 1 µm to 0.1 µm
Meas. lengths (ML) 50 to 1220 mm 70 to 2040 mm2) 70 to 1240 mm 70 to 2040 mm2)
Reference mark One or distance-coded

1) PROFIBUS-DP via gateway;
2) Over ML 1240 mm only with mounting spar and only in accuracy grade ± 5 µm

LIP Exposed Linear Encoders
Accuracy grades better than ±1 µm
The exposed linear encoders of the LIP
type are characterized by small measuring
steps together with high accuracy. The
measuring standard is a phase grating
applied to a substrate of glass or glass
ceramic.

LIP encoders are typically used for:
_ Measuring machines and comparators
_ Measuring microscopes
_ Ultra-precision machines such as
diamond lathes for optical components,
facing lathes for magnetic storage disks,
and grinding machines for ferrite
components
_ Measuring and production equipment in
the semiconductor industry
_ Measuring and production equipment in
the electronics industry
LIP 300 Series
_ For very high resolution with
measuring steps to 1 nanometer
_ Very high repeatability through an
extremely fine signal period
_ Defined thermal behavior thanks to a
measuring standard on Zerodur® glass
ceramic

Incremental
LIP 382
LIP 372
LIP 481
LIP 471
Thermal expansion coefficient:
DIADUR phase grating on Zerodur® glass ceramic
_therm _ 0 ppm/K

DIADUR phase grating on glass or
Zerodur® glass ceramic
_therm _ 8 ppm/K (glass) or
_therm _ 0 ppm/K (Zerodur®)

Output signals LIP 382:_1 VPP
LIP 372:_TTL
LIP 481:_1 VPP
LIP 471:_TTL

Signal period LIP 382:0.128 µm
LIP 372:0.004 µm
LIP 481:2 µm
LIP 471:0.4 µm/0.2 µm

Accuracy grades ±0.5 µm1) ±1 µm; ±0.5 µm1)
Recommd. meas. steps 1 nm 1 µm to 0.005 µm
Measuring lengths (ML) 70 to 270 mm 10 to 420 mm
Reference mark None One

Other accuracy grades available on request

LIP 400 Series
_ Small dimensions
_ Measuring steps to 0.005 µm
_ Scale available with various thermal
expansion coefficients

LIP 500 Series
_ For measuring lengths to 1440 mm
_ Measuring steps to 0.05 µm
ML = 70mm

PP Exposed Linear Encoders

Two-Coordinate Encoders

The PP two-coordinate encoders feature as
measuring standard a planar phase-grating
structure on a glass substrate. This makes
it possible to measure positions in a plane.

Applications include:
_ Measuring and production equipment in
the semiconductor industry
_ Measuring and production equipment in
the electronics industry
_ Extremely fast X-Y tables
_ Measuring machines and comparators
_ Measuring microscopes

LIP 581
LIP 571
DIADUR phase grating on glass therm _ 8 ppm/K

LIP 581:_1 VPP
LIP 571:_TTL
LIP 581:4 µm
LIP 571:0.8 µm/0.4 µm
± 1 µm
1 µm to 0.05 µm
70 to 1440 mm
One or distance-coded Incremental

PP 281
PP 271

Measuring standard
Thermal expansion
coefficient:
DIADUR phase grating on glass
_therm _ 8 ppm/K

Output signals PP 281:_1 VPP
PP 271:_TTL
Signal period PP 281:4 µm
PP 271:0.8 µm/0.4 µm
Accuracy grades ± 2 µm
Recommd. meas. steps To 0.01 µm
Measuring range 68 mm x 68 mm,
(other measuring ranges upon request)
Reference mark One per coordinate
ML _ 120 mm

LIDA, LIF Exposed Linear Encoders
Accuracy grades to ± 3 µm
The LIDA and LIF exposed linear encoders
are characterized by easy installation. They
are typically used in:
_ Coordinate measuring machines
_ Inspection machines
_ PCB assembly machines
_ PCB drilling machines
_ Precision handling devices
_ Position and velocity measurement on linear motors

LIDA linear encoders use AURODUR steel
scale tape as measuring standard. They are
ideal for high traversing speeds up to
8 m/s. Their special scanning method
makes them highly tolerant to scale
contamination and unevenness of the
mounting surface.

A phase grating on glass, manufactured in
the SUPRADUR process, serves as
measuring standard for LIF linear encoders.
Its small signal period permits a high
repeatability.

LIF 400 Series
_ Fast, simple scale fastening with
HEIDENHAIN PRECIMET® adhesive film
_ Relatively insensitive to contamination
thanks to SUPRADUR graduation
_ High repeatability
_ Defined thermal behavior
_ Short mounting times
_ Position detection through limit switches
and homing track

LIDA 101 Series
_ One-piece steel scale
_ For high traversing speed

LIDA 407 Series
_ Fast, simple mounting of the scale tape
carrier with HEIDENHAIN PRECIMET®
adhesive film
_ For high traversing speed
_ One-piece AURODUR steel scale tape
guided in scale-tape carriers
_ Fastening of scale center guarantees
defined thermal behavior

_ LIDA 400 series with integrated limit
switches

LIDA 405 Series
_ For large measuring lengths up to
30 m (100 ft)
_ For high traversing speed
_ One-piece AURODUR steel scale tape
guided in scale-tape carriers
_ Scale is drawn to a defined tension and
fixed at both ends to the machine base

_ LIDA 400 series with integrated limit
switches

Incremental
LIF 481
LIF 471
LIDA 181
LIDA 171
LIDA 485
LIDA 475
LIDA 487
LIDA 477

Measuring standard Thermal expansion coefficient:
SUPRADUR

phase grating on glass
_therm _ 8 ppm/K

AURODUR
steel scale tape
_therm _ 10 ppm/K
Output signals LIF 481:_1 VPP
LIF 471:_TTL
LIDA 181:_1 VPP
LIDA 171:_TTL
LIDA 48x:_1 VPP
LIDA 47x:_TTL

Signal period LIF 481:4 µm
LIF 471:0.04 µm/0.08 µm/
0.2 µm/0.4 µm/0.8 µm
LIDA 181:40 µm
LIDA 171: 4 µm/8 µm
LIDA 48x:20 µm
LIDA 47x: 0.2 µm/0.4 µm/2 µm/4 µm
Accuracy grades ± 3 µm ± 5 µm, ± 3 µm ± 5 µm ± 15 µm

Recommended measuring steps
1 µm to 0.1 µm 1 µm to 0.1 µm 1 µm to 0.1 µm 1 µm to 0.1 µm
Meas. lengths (ML) 70 to 1020 mm2) 220 to 2040 mm 140 to 30040 mm 240 to 6040 mm
Reference mark One

LIDA 1x1:One or distance-coded
1) From ML 270 mm: DIADUR phase grating 2) Larger measuring lengths up to 3040 mm available upon request
LIDA 485
LIDA 487
LIDA 181

HEIDENHAIN-CERTO Length Gauge
Accuracy ± 0.1 µm Incremental

CT 2501 CT 2502 CT 6001 CT 6002
Measuring standard DIADUR phase grating on Zerodur® glass ceramic
Therm. expansion coefficient: _therm _ 0 ± 0.1 ppm/K
Output signals _11 µAPP
Signal period 2 µm
System accuracy ± 0.1 µm
± 0.03 µm2)
± 0 1 µm
± 0 05 µm2)

Recommended measuring steps
0.01 µm and 0.005 µm with ND 281B measured value display unit
Measuring range 25 mm (1 in.) 60 mm (2.4 in.)
Plunger actuation Motor driven Via coupling Motor driven Via coupling
Reference mark One

1) at 19 to 21 °C; permissible temperature fluctuation during measurement: ± 0.1 K
2) With linear length error compensation in the ND 281B display unit
Plunger actuation

The plunger of the CT 2501 and CT 6001 is
extended and retracted by an integral
motor. It can be actuated by the associated
switch box, which can also be controlled by
external signal.

The CT 2502 and CT 6002 have no plunger
drive. The freely movable plunger is
connected by a separate coupling with the
moving machine element.
Mounting

The CT 2500 length gauge is fastened by
its 16-mm diameter clamping shank. The
CT 6000 is fastened with two screws on a
plane surface.


HEIDENHAIN-CERTO length gauges
feature a large measuring range, provide
high linear accuracy and offer resolution
in the nanometer range. They are used
predominantly for production quality control
of high-precision parts and for the
monitoring and calibration of reference
standards. Length gauges reduce the
number of working standards required to
calibrate gauge blocks.
Accuracy

The total error of HEIDENHAIN-CERTO
length gauges lies within ± 0.1 µm. After
linear length error compensation in the
evaluation electronics of the ND 281B, for
example, HEIDENHAIN guarantees
accuracy of ± 0.03 µm for the CT 2500 and
± 0.05 µm for the CT 6000. These accuracy
grades apply over the entire measuring
range at ambient temperatures between
19 and 21 °C and with a temperature
variation of ± 0.1 K during measurements
for which the CS 200 gauge stand for
HEIDENHAIN-CERTO is used.


HEIDENHAIN-METRO Length Gauge
Accuracy ± 0.2 µm
Incremental
MT 1201 MT 1271 MT 1281
MT 1287
MT 2501 MT 2571 MT 2581
MT 2587

Measuring standard DIADUR phase grating on Zerodur® glass ceramic
Therm. expansion coefficient: _therm _ 0 ± 0.1 ppm/K
Output signals _11 µAPP _TTL _1 VPP _11 µAPP _TTL _1 VPP
Signal period 2 µm 0.4 µm or
0.2 µm
2 µm 0.4 µm or
0.2 µm
2 µm
System accuracy ± 0.2 µm
Recommended measuring steps:
0.5 µm to 0.05 µm

Measuring range 12 mm (0.47 in.) 25 mm (1 in.)
Plunger actuation MT 12x1/MT 25x1:by cable-type lifter or freely movable
MT 1287/MT 2587:pneumatic
Reference mark One

With their high system accuracy and small
signal period, the HEIDENHAIN-METRO
MT 1200 and MT 2500 length gauges are
ideal for precision measuring stations and
testing equipment. They feature ball-bush
guided plungers and therefore permit high
radial forces.

Plunger actuation
The length gauges of the MT 12x1 and
MT 25x1 series feature a spring-tensioned
plunger that is extended at rest. In a special
version without spring it exercises
particularly low force on the measured
object.

In the pneumatic length gauges MT 1287
and MT 2587, the plunger is retracted to its
rest position by the integral spring and is
extended to the measuring position by the
application of compressed air.

Mounting
The MT 1200 and MT 2500 length gauges
are fastened by their 8h6 standard
clamping shank. A mounting bracket is
available as an accessory to mount the
length gauges to plane surfaces or to the
MS 200 from HEIDENHAIN.

HEIDENHAIN-METRO Length Gauge
Accuracy to ± 0.5 µm
Incremental
MT 60M MT 60K MT 101M MT 101K
Measuring standard DIADUR graduation an glass ceramic
Output signals _11 µAPP
Signal period 10 µm
System accuracy ± 0.5 µm ± 1 µm
Recommended measuring steps

1 µm to 0.1 µm
Measuring range 60 mm (2.4 in.) 100 mm (3.94 in.)
Plunger actuation Motor driven Via coupling Motor driven Via coupling
Protection IP 50
Reference mark One

Large measuring ranges together with
their high accuracy make the MT 60 and
MT 101 HEIDENHAIN-METRO length
gauges attractive for incoming inspection,
production monitoring, quality control, or
anywhere parts with very different
dimensions are measured. But they are
also easy to mount as highly accurate
position encoders, for example on sliding
devices or X-Y tables.

Plunger actuation
M version length gauges feature an
integral motor that retracts and extends the
plunger. While the MT 101M operates at a
constant gauging force, the MT 60M
allows you to select from three gauging
force levels.

K version gauges have no integral plunger
actuation. The plunger is freely movable. It
can be connected to moving elements
such as linear slides and X-Y table by a
coupling.

Mounting
The length gauges are mounted onto a flat
surface by two screws. The M versions can
also be mounted in the accessory MS 100
and MS 200 gauge stands.

HEIDENHAIN-SPECTO Length Gauge
Accuracy ± 1 µm
Incremental
ST 1208
ST 1207
ST 1278
ST 1277
ST 1288
ST 1287
ST 3008
ST 3007
ST 3078
ST 3077
ST 3088
ST 3087

Measuring standard DIADUR glass scale
Output signals _11 µAPP _TTL _1 VPP _11 µAPP _TTL _1 VPP
Signal period 20 µm 4 µmor 2 µm 20 µm 4 µmor 2 µm 20 µm
System accuracy ± 1 µm
Recommd. meas. steps 1 µmor 0.5 µm
Measuring range 12 mm (0.47 in.) 30 mm (1.2 in.)
Plunger actuation ST 12x8/ST 30x8:by measured object
ST 12x7/ST 30x7:pneumatic
Protection IP 64
Reference mark One

Thanks to their quite small dimensions,
the HEIDENHAIN-SPECTO length gauges
are the product of choice for multipoint
inspection apparatus and testing
equipment.

Plunger actuation
The length gauges of the ST 12x8 and
ST 30x8 series feature a spring-tensioned
plunger that is extended at rest.
In the pneumatic length gauges ST 12x7
and ST 30x7, the plunger is retracted to its
rest position by the integral spring and is
extended to the measuring position by the
application of compressed air.
Mounting

The HEIDENHAIN-SPECTO length gauges
are fastened by their 8h6 standard
clamping shank.

Angle measurement Rotary encoders

Rotary encoders from HEIDENHAIN serve
as measuring sensors for rotary motion,
angular velocity and also, when used in
conjunction with mechanical measuring
standards such as lead screws, for linear
motion. Application areas include electrical
motors, machine tools, printing machines,
woodworking machines, textile machines,
robots and handling devices, as well as
various types of measuring, testing, and
inspection devices.

_ Line counts of typically 50 to 5000
_ Accuracy from ± 12" (depending on the
line count)

_ Measuring steps as fine as 0.001° The
sinusoidal incremental signals can be
interpolated up to 4096-fold for digital
speed control.
Angle encoders

HEIDENHAIN angle encoders are
characterized by high accuracy values in the
arc second range and better. These devices
are used in applications such as NC rotary
tables, swivel heads of machine tools,
dividing apparatuses, high-precision angle
measuing tables, precision devices in
angular metrology, antennas and
telescopes.

_ Line counts typically 9000 to 90000
_ Accuracy from ± 5" to ± 0.4"
_ Measuring steps as fine as 0.000 01° or
0.035" (incremental) or 27 bits, i.e.
approx. 134 million positions per
revolution (absolute)

Mounting variants

In angle encoders and rotary encoders with
integral bearing and stator coupling, the
graduated disk of the encoder is connected
directly to the shaft to be measured. The
scanning unit is guided on the shaft via ball
bearings, supported by the stator coupling.
During angular acceleration of the shaft, the
stator coupling must absorb only that
torque resulting from friction in the bearing,
thereby minimizing both static and dynamic
measuring error. Moreover, the coupling
mounted on the stator compensates axial
motion of the measured shaft. Other
benefits of the stator coupling are:

_ Easy mounting
_ Short overall length
_ High natural frequency of the coupling
_ Hollow through shaft is possible

Angle encoders and rotary encoders with
integral bearings that are conceived for a
separate shaft coupling are designed with
a solid shaft. The recommended coupling
to the measured shaft compensates radial
and axial tolerances. Angle encoders for
separate shaft couplings permit higher
shaft speeds.

Angle encoders and rotary encoders
without integral bearing operate without
friction. The two components the
scanning head and the scale disk, drum, or
tape are adjusted to each other during
assembly. The benefits are:

_ For limited installation space
_ Large hollow-shaft diameter
_ For high shaft speeds
_ No additional starting torque

With incremental angle encoders and
rotary encoders, the current position is
determined by starting at a datum and
counting measuring steps, or by
subdividing and counting signal periods.
Incremental encoders from HEIDENHAIN
feature reference marks, which must be
scanned after switch-on to reestablish the
datum.

Incremental rotary encoders with
commutation signals supply the angular
shaft position value—without requiring
previous traverse—with sufficient accuracy
to correctly control the phases of the
rotating field of a permanent-magnet
three-phase motor.

Absolute angle encoders and rotary
encoders require no previous traverse to
provide the current position value.
Singleturn encoders provide the current
angular position value within one revolution,
while multiturn encoders can distinguish
between revolutions.

Absolute angle encoders and rotary
encoders from HEIDENHAIN provide the
position values over an EnDat, SSI,
PROFIBUS-DP or other serial data
interface. The EnDat PROFIBUS-DP
bidirectional interfaces enable automatic
configuration of the higher-level electronics
and provide moitoring and diagnostic
functions.

With programmable rotary encoders, the
user can adjust various encoder functions
and parameters from a PC with provided
software.

Angle Encoders Series Page
With integral bearing and integrated
stator coupling
Incremental Absolute (singleturn)

RON, RPN
RCN

With integral bearing, for separate shaft coupling
Incremental ROD 200's

Without integral bearing Incremental ERP, ERO, ERA, ERM 25, 26
Rotary Encoders
With integral bearing, for mounting by
stator coupling
Incremental

absolute (singleturn)
Absolute (multiturn)

ERN
ECN
EQN

With integral bearing, for separate
shaft coupling
Incremental

absolute (singleturn)
Absolute (multiturn)

ROD
ROC
ROQ

Without integral bearing Incremental
absolute (singleturn)
Absolute (multiturn)
ERO
ECI
EQN

Because of their high static and dynamic
accuracy, the RCN, RON and RPN angle
encoders with integral bearings and stator
couplings are the preferred units for
high-precision applications such as rotary
tables and tilting axes. For the units with
stator coupling, the specified accuracy
includes the error caused by the coupling.
For angle encoders with separate shaft
coupling, the coupling error must be added
to find the system accuracy.
RCN, RON, RPN Angle Encoders
with integral bearing and integrated stator coupling

RON/RCN 200 Series
_ Compact dimensions
_ Sturdy design
_ Typically used with rotary tables, tilting
tables, for positioning and
synchronization monitoring
_ Measuring steps as fine as 0.0001°
_ Versions in stainless steel (e.g. for
antennas) available on request

RON/RCN 700 and RON/RPN/RCN 800
Series
_ Large hollow-shaft diameter up to

_ Measuring steps to 0.00001° with
system accuracy grades of ± 2" and ± 1"
_ Typically used on rotary and angle
measurement tables, indexing fixtures,
measuring setups, image scanners
_ Versions in stainless steel (e.g. for
antennas) available on request

RON 785
RON 905

_ Very high-accuracy angle encoder
_ Measuring steps as fine as 0.00001°
_ System accuracy ± 0.4"
_ Used with high-accuracy measuring
devices, antennas, and for the inspection
of measuring equipment

RON/RCN 700
RON/RPN/RCN 800


Incremental Absolute

RON 225 RON 275 RON 285 RON 287 RCN 226 RCN 223F/RCN 223M
Incremental signals _TTL x 2 _TTL x 5
_TTL x 10
_1 VPP _1 VPP –
Line count 9000 18000 16384 –
System accuracy ± 5" ± 2.5" ± 5"/± 2.5"
Absolute position
values
– EnDat1) Fanuc/ Mitsubishi
Position values/rev. – 67108864 (26 bits) 8388608 (23 bits)
Recommended measuring steps

0.005° 0.001°
0.0005°
0.0001° Approx. 0.000006°
_ 0.02" (absolute)
Approx. 0.00004°
_ 0.15"
Mech. perm. speed 3000 rpm 3000 rpm
1) PROFIBUS-DP via gateway

Incremental Absolute

RON 786
RON 785
RON 886 RPN 886 RCN 727
RCN 827
RCN 723F/RCN 723M
RCN 823F/RCN 823M
Incremental signals _1 VPP _1 VPP

Line count 18000
360002)
36000 90000 32768 –
System accuracy ± 2" ± 1" RCN 72x:± 2"
RCN 82x:± 1"
Absolute position values
EnDat1) Fanuc/ Mitsubishi

Position values/rev. – 134217728 (27 bits) 8388608 (23 bits)
Recommended measuring steps

0.0001° 0.00005° 0.00001° Approx. 0.000003°
_ 0.01" (absolute)
Approx. 0.00004°
_ 0.15"
Mech. perm. speed 1000 rpm 1000 rpm

1) PROFIBUS-DP via gateway 2) Only RON 786
Incremental
RON 905

Incremental signals _11 µAPP
Line count/
System accuracy
36000/± 0.4"

Recommended measuring step
0.00001°
Mech. permissible
speed 100 rpm

ROD angle encoders with solid shaft for
separate shaft coupling are particularly
attractive for applications where high
shaft speeds and large mounting
tolerances are required. The precision
shaft couplings allow axis motion up to
± 1 mm.

For angle encoders with separate shaft
coupling, the angular measuring error
caused by the shaft coupling must be
added to determine the system accuracy.
ROD Angle Encoders

with integral bearing, for separate shaft coupling
ROD 200 Series

_ Compact dimensions
_ Sturdy design
_ Typically used with rotary tables, tilting
tables, for positioning and
synchronization monitoring
_ Measuring steps as fine as 0.0001°

ROD 780 and ROD 880

_ High accuracy
± 2" (ROD 780) or
± 1" (ROD 880)

_ For measuring steps as fine as 0.00005°
_ Ideal for angle measurement on
high-precision rotary tables, dividing
apparatuses or measuring machines
Incremental

ROD 260 ROD 270 ROD 280

Incremental signals _TTL _TTL x 10 _1 VPP
Line count/
System accuracy1)
18000/± 5"

Recommended measuring step
0.005° 0.0005° 0.0001°
Mech. perm. speed 10000 rpm
1) Without coupling

Incremental

ROD 780 ROD 880
Incremental signals _1 VPP _1 VPP
Line count/
System accuracy1)
18000/± 2"
36000/± 2"
36000/± 1"

Recommended measuring step
0.0001°/0.00005° 0.00005°
Mech. perm. speed 1000 rpm
1) Without coupling

The HEIDENHAIN ERP and ERO angle
encoders without integral bearing are
intended for integration in machine
elements or components. They operate
without friction and permit high accuracy.
This makes them particularly attractive for
high-precision angle measuring tables and
precision devices in angular metrology.
The attainable system accuracy depends
on the eccentricity of the graduation to the
drive shaft bearing, as well as the radial
runout and wobble of the bearing.
ERP, ERO Angle Encoders
without integral bearing

ERP 880

_ Very high accuracy
_ Low error within one signal period
thanks to the interferential scanning
principle
_ Housing with connecting cable as
accessory Mounting the ERP
ERP 880 with housing

ERO 785

ERO 785
_ High accuracy
_ DIADUR graduation on glass disk
Incremental
ERO 785
Incremental signals _ 1 VPP
Line counts 36000
System accuracy1) ± 4.2" ± 3" ± 2.2"
Diameter D1/D2 47.2 mm/130 mm 102.2 mm/182 mm 155.1 mm/256.9mm
Rec. meas. step 0.0001°
Mech. perm. speed 8000 rpm 6000 rpm 4000 rpm
1) Before installation. Additional error is caused by imprecise mounting and the bearing.
Incremental

ERP 880
Incremental signals _ 1 VPP
Line counts 90000 (180000 signal periods)
System accuracy1) ± 1"
Recommended
measuring step
0.00001°
Mech. perm. speed 1000 rpm
1) Before installation. Additional error is caused by imprecise mounting and the bearing.

ERA 700 and ERA 800 Series
_ For very large diameters up to 10 m
_ AURODUR steel scale tape
_ High accuracy even at the junction of the
scale-tape ends

ERA 700 Series
Scale tape is placed in a slot on the inside
circumference of the machine element
_ ERA 780C: Full-circle version
_ ERA 781C: Circle-segment version

ERA 800 Series
Scale tape is fastened on the outside
circumference of the machine element

_ ERA 880C: Full-circle version

_ ERA 881C: Circle-segment version, scale
tape secured with tensioning elements

_ ERA 882C: Circle-segment version, scale
tape without tensioning elements

ERA 781C, ERA 881C, ERA 882C:
Segments with 5000, 10000 or 20000
grating periods for various diameters and
segment angles

ERA 180
_ High shaft speeds up to 40000 rpm
_ Sturdy design with solid steel scale drum
_ Axial motion of drive shaft permissible up
to ± 0.5 mm
_ Typically used for direct mounting on
high-speed spindles and ball screws.

ERA 780C
ERA 880C
ERA, ERM Angle Encoders
without integral bearing
The HEIDENHAIN ERA angle encoders
without integral bearing are intended for
integration in machine elements or
components. They are designed to meet
the following requirements:
_ Large hollow shaft diameter (up to 10 m
with scale tape)
_ For high shaft speeds up to 40000 rpm
_ No additional starting torque from shaft
seals

The attainable system accuracy depends
on the eccentricity of the graduation to the
drive shaft bearing, as well as the radial
runout and wobble of the bearing.
The ERM modular encoder from
HEIDENHAIN consists of a magnetized
scale drum and a scanning unit with
magnetoresistive sensor. Typical
applications include machines and
equipment with large hollow shaft
diameters in environments with large
amounts of airborne particles and liquids,
for example on the spindles of lathes or
milling machines.

ERM 280
_ For large shaft diameters up to
295 mm
_ High degree of protection IP 67
through magnetoresistive scanning
principle

ERM 280

Incremental
ERA 780C ERA 880C
Incremental signals/
Signal period
_1 VPP
40 µm (on circumference)
Line count/
System accuracy1)
36000/
± 3.5"
45000/
± 3.4"
90000/
± 3.2"
36000/
± 3.5"
45000/
± 3.4"
Diameter D1 458.62 573.20 1146.10 458.04 572.63
Recommended measuring step
0.0001° to 0.00002°
Mech. perm. speed 500 rpm 100 rpm
1) Before installation. Additional error is caused by imprecise mounting and the bearing.

ERA 880

ERA 780

ERM 280

Output signals _1 VPP
Line counts 600 900 1024 1200 1400 2048 2600
Mech. perm. speed 40000 rpm 26000 rpm 22000 rpm 18000 rpm 15000 rpm 10000 rpm 7000 rpm
Drum
Inside diameter D1
Outside diameter D2
_ 40 mm
_ 75.44 mm
_ 70 mm
_ 113.16 mm
_ 80 mm
_ 128.75 mm
_ 120 mm
_ 150.88 mm
_ 130 mm
_ 176.03 mm
_ 180 mm
_ 257.5 mm
_ 295 mm
_ 326.9 mm


ERA 180
Incremental signals _1 VPP
Line count/
System accuracy1)
6000/
± 7.5"
9000/
± 5"
18000/
± 4"
Diameter D1/D2 40 mm/
80 mm
80mm/
130mm
120 mm/
180 mm
180 mm/
250 mm
Recommended
measuring step
0.0015° to 0.0005°
Mech. perm. speed 40000 rpm 25000 rpm 18000 rpm 13000 rpm
1) Before installation. Additional error is caused by imprecise mounting and the bearing.


HEIDENHAIN ERN, ECN and EQN rotary
encoders with integral bearing and
mounted stator coupling are characterized
by simple mounting and short overall
length. Possible applications range from
simple measuring tasks to position and
speed control on servo drives. The hollow
shaft of these encoders is slid directly onto
and fastened to the shaft to be measured.
During angular acceleration of the shaft, the
stator coupling must absorb only that
torque caused by friction in the bearing.
Rotary encoders with stator coupling
therefore provide excellent dynamic
performance and a high natural frequency.
ERN, ECN, EQN Rotary Encoders
with integral bearing and mounted stator coupling
IP 64 degree of protection

ERN 1000 Series
_ Miniaturized version
_ Blind hollow shaft with 6-mm inside
diameter
_ Housing outside diameter: 36.5 mm
_ Natural frequency of the encoder stator
coupling: _ 950 Hz
_ Mechanically permissible speed:
10000 rpm

ERN/ECN 100 Series
_ For large shaft diameters
_ Hollow through shaft with: 20-mm,
25-mm, 38-mm, 50-mm inside
diameters D
_ Housing outside diameter: 87 mm
_ Natural frequency of the encoder stator
coupling: _ 1100 Hz
_ Mechanically permissible speed:
6000 rpm (D 30 mm)
4000 rpm (D > 30 mm)

ERN/ECN/EQN 400 Series
_ Compact dimensions
_ Blind hollow shaft with 12-mm inside
diameter
_ Housing outside diameter: 58 mm
_ Natural frequency of the encoder stator
coupling: _ 1250 Hz
_ Mechanically permissible speed:
12000 rpm (EQN: 10000 rpm)
ERN 4x0: L = 47.2 ± 0.5 mm
ECN 413: L = 56.4 ± 1 mm
EQN 425: L = 63.2 ± 1 mm
EQN 425 prog: L = 73 ± 1 mm
ERN/ECN 100
ERN 1000
ERN/ECN/EQN 400

Incremental

ERN 1020 ERN 1030 ERN 1080 ERN 1085
Incremental signals _TTL _HTL _1 VPP
Line counts 100 to 3600 512 or 2048
Commutation signals – 1 sine and 1 cosine
signal with 1 period
per revolution
(Z1 track)
Power supply 5 V 10 to 30 V 5 V
Operating temperature Max. 100 °C Max. 70 °C Max. 100 °C
Incremental Absolute
ERN 420 ERN 430 ERN 460 ERN 480 ECN 413 EQN 425 EQN 425
programmable

Incremental signals _TTL _HTL _TTL _1 VPP _1 VPP
Line counts 250 to
5000
1000 to
5000
512 or
2048
512

Absolute position values – EnDat1) or SSI SSI
Position values per rev. – 8192 (13 bits) Up to 8192 (13 bits)
programmable
Distinguishable
revolutions 4096 (12bits)
Up to 4096 (12 bits)
programmable
Power supply 5 V 10 to 30 V 5 V EnDat:5 V
SSI:5 V or 10 to 30 V
10 to 30 V
Operating temperature Max. 100 °C Max. 70 °C Max. 100 °C 5 V:max. 100 °C
10 to 30 V:max. 85 °C
Max. 70 °C
1) PROFIBUS-DP via gateway

Incremental Absolute
ERN 120 ERN 130 ERN 180 ECN 113
Incremental signals _TTL _HTL _1 VPP _1 VPP
Line counts 1000 to 5000 2048
Absolute position values – EnDat1) or SSI
Position values per rev. – 8192 (13 bits)
Power supply 5 V 10 to 30 V 5 V 5 V
Operating temperature Max. 100 °C Max. 100 °C (UP 15 V)
Max. 85 °C (UP 30 V)
Max. 100 °C Max. 100 °C
1) PROFIBUS-DP via gateway

ERN, ECN, EQN 1100 Series
_ Miniaturized version
_ Blind hollow shaft _6mm
_ Housing outside diameter 36.5 mm
_ Stator coupling in two versions for
location holes with inside diameters
– of 45 mm
– of 37 mm (only ECN 1113/EQN 1125)
_ Natural frequency of the encoder stator
coupling: _ 1500 Hz
_ Mech. perm. speed 12000 rpm

ERN/ECN/EQN 1300 Series

_ Compact dimensions
_ 1:10 taper shaft with 9.25 mm functional
diameter for extremely stiff connection
_ Housing outside diameter 58 mm The
stator coupling is suited for location bores
with 65 mm inside diameter
_ Natural frequency of the encoder stator
coupling: _ 1750 Hz
_ Mech. perm. speed
– ERN/ECN: 15000 rpm
– EQN: 12000 rpm
_ IP 30 protection when not mounted

ERN 1300,
ECN 1313: L = 55 ± 1 mm
EQN 1325: L = 63 ± 1 mm

ERN, ECN, EQN Rotary Encoders
with integral bearing and mounted stator coupling
IP 40 degree of protection

The HEIDENHAIN ERN, ECN and EQN
rotary encoders with IP 40 degree of
protection are specially designed for
integration in motors. Bearings and
mounted stator coupling are integrated.
Absolute rotary encoders and versions with
commutation tracks are available for
synchronous motors. The taper shaft or the
blind hollow shaft is fastened directly to the
shaft to be measured. This ensures an
extremely stiff coupling that permits
exceptionally high dynamic performance of
the drive. The stator coupling is designed to
be fastened in a location bore and permits
fast, simple mounting while enabling a
mechanical fine adjustment of the
commutation.

ERN/ECN/EQN 1300
ERN 1100

Incremental Absolute
ERN 1120 ERN 1180 ERN 1185 ECN 1113 EQN 1125
Incremental signals _TTL _1 VPP _1 VPP
Line counts 1024 2048 3600 512 or 2048 512
Commutation signals – 1 sine and 1 cosine
signal with 1 period
per revolution (Z1track)

Absolute position values – EnDat1)
Position values per rev. – 8192 (13 bits)
Distinguishable
revolutions
4096 (12 bits)
Power supply 5 V 5 V
Operating temperature Max. 100 °C Max. 115 °C Max. 115 °C
1) PROFIBUS-DP via gateway
Incremental Absolute
ERN 1321 ERN 1326 ERN 1381 ERN 1387 ECN 1313 EQN 1325
Incremental signals _TTL _1 VPP _1 VPP
Line counts 1024 2048 4096 512
2048
4096
2048 512 or 2048
Commutation signals – 3 block
commutation
tracks with 90°
or 120° mech.
phase shift
– 1 sine and 1 cosine
signal with 1 period
per revolution
(Z1 track)
–
Absolute position values – EnDat1)
Position values per rev. – 8192 (13 bits)
Distinguishable
revolutions
– – 4096 (12 bits)
Power supply 5 V 5 V
Operating temperature Max. 120 m Max. 115 °C
1) PROFIBUS-DP via gateway


ROD 1000 Series

_ Miniaturized dimensions for installation
in small devices or in limited installation
space

_ Mounting by synchro flange
_ Shaft diameter 4 mm
ROD, ROC, ROQ Rotary Encoders
with integral bearing, for separate shaft coupling
ROD, ROC and ROQ rotary encoders from
HEIDENHAIN have their own bearings and
are sealed, providing IP IP 64 to IP 67
protection, depending on the version.
They are robust and compact. These
encoders are coupled by the rotor to the
measured shaft through a separate
coupling that compensates axial motion
and misalignment between the encoder
shaft and measured shaft.

ROD/ROC/ROQ 400 Series

_ Industrial standard for dimensions and
output signals
_ Degree of protection
IP 67 at housing
IP 64 at shaft end (IP 66 available
on request)
_ Mounting by synchro flange or clamping
flange
_ Shaft diameter
6 mm with synchro flange
(except ROC 415/417: _ 10 mm)
10 mm with clamping flange
_ Preferred types with fast delivery (see
Rotary Encodersbrochure or ask HEIDENHAIN)
 

Incremental Absolute
Singleturn

Synchro flange ROD 426 ROD 466 ROD 436 ROD 486 ROC 410 ROC 412
Clamping flange ROD 420 – ROD 430 ROD 480 –
Incremental signals

_TTL _HTL _1 VPP _1 VPP
Line counts/
Signal periods
50 to 5000
ROD 426/466:Up to 100002)
1000 to
5000
512
Absolute
position values
– SSI
Positions per
revolution
– 1024 (10 bits) 4096 (12 bits)
Distinguishable
revolutions
– –
Power supply 5 V 10 to 30 V 5 V 5 V or 10 to 30 V
Max. operating
temperature
100 °C 70 °C (158 °F) 100 °C 5 V: 100 °C
10 to 30 V: 85 °C
1) PROFIBUS-DP via Gateway 2) Signal periods over 5000 are generated through signal doubling in the encoder
Synchro flange
Clamping flange

Multiturn Programmable

ROC 413 ROC 415 ROC 417 ROQ 425 ROQ 425
ROC 413 – – ROQ 425 ROQ 425

_1 VPP – _1 VPP _1 VPP – _1 VPP
512 – 8192 512 – 512
EnDat1) SSI PROFIBUSDP
EnDat1) EnDat1) SSI PROFIBUSDP
SSI

8192 (13 bits) 32768
(15 bits)
131072
(17 bits)
8192 (13 bits) Up to 8192 (13 bits)
programmable
– – 4096 (12 bits) Up to 4096 (12 bits)
programmable

5 V 5 V or
10 to 30 V
10 to 30 V 5 V 5 V 5 V or
10 to 30 V
10 to 30 V 10 to 30 V
100 °C 5 V:100 °C
10 to 30 V:
85 °C
60 °C 80 °C 100 °C 5 V:100 °C
10 to 30 V:
85 °C
60 °C 70 °C

Incremental
ROD 1020 ROD 1030 ROD 1080

Incremental signals _TTL _HTL _1 VPP
Line count 100 to 3600
Mech. perm. speed 10000 rpm
Power supply 5 V 10 to 30 V 5 V
Operating
temperature
Max. 100 °C Max. 70 °C Max. 100 °C
With clamping flange With synchro flange

ERO 1400 Series

_ Miniaturized modular rotary encoder
for measured shafts up to _8mm
_ Special integral mounting aid
_ With cover cap

ERO 1200 Series
_ Compact dimensions
_ For shaft diameters up to 12 mm

ERO 1300 Series
_ For large shaft diameters up to 30 mm
_ Lateral mounting of scanning unit possible
with through shaft

ECI, EQI, ERO Rotary Encoders
without integral bearing
The inductive rotary encoders ECI/EQI 1300
are mechanically compatible with the
photoelectric encoders ExN 1300: the shaft
is fastened with a central screw. The stator
of the encoder is clamped by an axially
tightened screw in the location hole.
The photoelectric ERO modular rotary
encoders from HEIDENHAIN consists of a
graduated disk with hub and a scanning
unit. They are particularly well suited for
limited installation space or for
applications for which there must be no
friction.

ERO 1400
ECI/EQI 1300 Series

_ Mechanically compatible with
ECN/EQN 1300

_ Taper shaft or blind hollow shaft
ECI/EQI 1300



Incremental

ERO 1420 ERO 1480
Output signals _TTL _1 VPP
Line counts 512 1000 1024
Mech. perm. speed 30000 rpm
Shaft diameter D _ 4, 6, 8 mm

Incremental
ERO 1225 ERO 1285 ERO 1324 ERO 1384
Output signals _TTL _1 VPP _TTL _1 VPP
Line counts 1024 2048 1024 2048 5000
Mech. perm. speed 25000 rpm 16000 rpm
Shaft diameter D _ 10, 12 mm _ 20, 30 mm

Absolute
ECI 1317 EQI 1329
Incremental signals _1 VPP; 32 lines
Absolute position values EnDat
Position values per rev. 131072 (17 bits)
Distinguishable
revolutions
4096 (12 bits)
Mech. perm. speed 15000 rpm 12000 rpm
Shaft ____ ____ __ !___" ____# ____

Machine Tool Control

Contouring controls for milling, drilling,
boring machines and machining centers
TNC contouring controls from
HEIDENHAIN for milling, drilling, boring
machines and machining centers cover
the whole range of applications: From
the simple, compact TNC 310 three-axis
control to the iTNC 530 (up to 11-axis
spindle)—there’s a HEIDENHAIN TNC
control for nearly every application.
Besides these TNCs, HEIDENHAIN also
supplies controls for other areas of
application, such as lathes.
HEIDENHAIN TNCs are versatile, featuring
both shop-floor programming, and offline
programming, and are therefore ideal for
automated production.
They handle simple milling tasks just as
reliably as the iTNC 530, for example, can
perform high speed cutting—with
especially jerk-free path control—or 5-axis
machining with swivel head and rotary
table.

TNC part programs have long lives because
they are upwardly compatible. Programs
from older TNCs can also run on the new
models. When moving up to a more
advanced TNC, the user merely builds on
what he already knows.

Shop-Floor Programming

HEIDENHAIN controls are workshop
oriented, which means that they were
conceived to be programmed by the
machinist right at the machine.
Thanks to its conversational
programming, the user need not learn G
codes or special programming languages.
The control “speaks” with him with easily
understandable questions and prompts.
Ease of use is also promoted by clear,
unambiguous key symbols and names.
Each key has only one function.
The easy-to-read screen displays
plain-language information, dialog guidance,
programming steps, graphics, and a
soft-key row. All texts are available in all
major languages.

Frequently recurring machining sequences
are saved as fixed cycles.
Graphic illustrations simplify
programming and provide valuable
diagnostic aid during test runs.
The new smarT.NC operating mode
makes programming even easier. With
the well-thought-out input forms, you can
create your NC program even faster.
Of course you’ll be aided by help graphics.
As always, HEIDENHAIN has placed great
value on compatibility. At any time, you can
switch from smarT.NC to conversational
and back. But not only can you write
programs with smarT.NC—you can test
them and run them as well.

HEIDENHAIN controls excel not only
through their conversational programming.
You can also write programs in ISO 6983
(DIN 66025) or download and run them
through the data interface.
HEIDENHAIN Contouring Controls Series Page
For milling, drilling, boring machines
and machining centers

For simple milling, drilling and boring machines
Up to 11 axes and spindle
3 axes and spindle
iTNC 530
TNC 310

Accessories Electronic handwheels
Programming station
HR
iTNC

Graphic support
smarT.NC: Programming made simple
Conversational programming
Key symbols

iTNC 530 Contouring Control
for milling, drilling, boring machines and machining centers
The iTNC 530 from HEIDENHAIN is a
versatile, workshop-oriented contouring
control for milling, drilling and boring
machines as well as machining centers.
It features an integrated digital drive control
with integrated inverter, which enables it to
produce a highly accurate workpiece
contour while machining at high velocity.
The iTNC 530 controls up to 9 axes and
spindle. The block processing time is
0.5 ms. A hard disk serves as program
memory medium.

In the hardware option with two
processors, the iTNC 530 is also equipped
with the Windows 2000 operating system
as user interface, which enables the user to
simultaneously run standard Windows
applications.

High speed milling with the iTNC 530
The iTNC 530’s special drive strategies
enable very high machining speeds with
the greatest possible contouring accuracy.
High contour accuracy at high feed rates
The control loop of the iTNC 530 is fast and
it “looks ahead.” Like all TNC contouring
controls from HEIDENHAIN, the iTNC 530
features velocity feedforward control,
which means that it can machine with a
very small following error of only a few
microns.

The integrated motor control has further
improved contour accuracy, both through
digital control technology and the additional
acceleration feedforward capability. This
also improves the machine’s dynamic
performance, with following error
approaching zero. The benefit to you is
dramatically improved geometrical
accuracy, particularly when milling small
radii at high speeds.

Machining 2-D contours or 3-D surfaces
at high feed rates

The iTNC 530 provides the following
important features for machining contours:
_ The iTNC’s ability to limit and reduce jerk
ensures smoother acceleration and
optimum motion control—both during
workpiece approach, on the contour, and
at corners.

_ When running long programs from the
hard disk, the iTNC has a short block
processing time of only 0.5 ms. This
means that the iTNC can even mill
contours made of 0.1 mm line segments
at feed rates as high as 12 meters per
minute.

_ The iTNC looks ahead up to 256 blocks
into the part program to ensure a steady
traversing speed even over a large
number of very short contour elements.
_ The iTNC can automatically smoothen
discontinuous contour transitions—and
you define the desired tolerance range.
The iTNC mills smoother surfaces
without risking dimensional tolerances.
High speed spindle speeds
High surface-cutting speeds require
accordingly high spindle speeds.
The iTNC 530 can digitally control rotational
speeds up to 40000 rpm.

Digital drive control
High surface definition, high contouring
accuracy of the finished workpiece, and
short machining times—these
requirements can be met only with digital
drive concepts. For integrated drive
control, HEIDENHAIN offers the iTNC 530.
Either compact or modular inverters are
available, depending on the type of
machine.

The compact inverters contain the power
stage for up to 3 axes or 4 axes plus
spindle with spindle power ratings up to
15 kW.

With modular inverters, various power
modules are available for axes and
spindles, and power supply units with
22 kW to 55 kW. The modular inverters
are suitable for machines with up to 9 axes
and a spindle with maximum power of
35 kW.

Feed motors of 1.5 Nm to 44 Nm and
spindle motors of 5.5 kW to 30 kW are
available for connection to HEIDENHAIN
inverters.
iTNC 530
with modular inverter and
motors

TNC Contouring Controls iTNC 530
Axes Up to 11 and spindle or 10 and 2 spindles
Interpolation

Linear interpolation In max. 5 axes (with Tool Center PointManagement)
Circular interpolation In max. 3 axes with tilted working plane
Spline interpolation In max. 5 axes
Helical interpolation Yes
Cylinder surface Yes1)
Rigid tapping Yes1)

Program entry HEIDENHAIN conversational, with smarT.NC and according to ISO
Program memory Hard disk

Position data coordinates Nominal positions in Cartesian or polar coordinates,
dimensions absolute or incremental, in mm or inches; actual position capture
Input resolution and display step To 0.1 µm or 0.0001°
Block processing time2 0.5 ms

High speed cutting Motion control with minimum jerk
FK free contour programming HEIDENHAIN conversational with graphical support
Tilting the working plane With the powerful PLANE function
Fixed cycles For drilling and milling; data input with graphical support
Touch probe cycles For tool measurement, workpiece alignment, workpiece measurement and
datum setting

Graphics For programming and program verification
Cutting data tables Yes

Parallel operation Program run and programming with graphics
Data interface _ RS-232-C/V.24 and RS-422/V.11 (max. 115200 bauds)
_ Ethernet 100BaseT

Remote control and diagnosis TeleService
Visual display unit 15-inch or 10.4-inch color flat-panel display (TFT)
Axis control _ Feedforward control or following error
_ Integrated digital drive control with integrated inverter
Integral PLC Approx. 16000 logic commands
Accessories _ Electronic handwheel

_ Triggering 3-D touch probe TS 220 or TS 640 and TT 130
Option: Dual-processor version With additional Windows 2000 operating system as user interface
1) This feature must be implemented by the machine tool builder; 2) 3-D straight line without radius compensation at 100% PLC utilization

TNC 310 Contouring Control

for simple milling, drilling and boring machines
The TNC 310 is a workshop-oriented,
compact contouring control for milling,
drilling and boring machines with three or
four controlled axes. The user programs it
directly at the machine in HEIDENHAIN
plain-language dialog, with practice-oriented
fixed cycles. Graphical illustrations on the
screen provide additional guidance during
programming.

TNC 310

Axes 3 and spindle S
Interpolation Linear In max. 3 axes
Circular In max. 2 axes
Helical Yes

Program entry HEIDENHAIN conversational
Program memory Approx. 6000 blocks in max. 64 programs
Position data coordinates Nominal positions in Cartesian or polar coordinates,
dimensions absolute or incremental, in mm or inches
Input resolution and
display step
1 µm or 0.001°

Block processing time 40 ms1)
Fixed cycles For drilling and milling;
data input with graphical support
Touch probe cycles For datum setting and workpiece alignment
Graphics For programming and program verification
Parallel operation Yes, without graphics
Data interface RS-232-C/V.24
Visual display unit Monochrome 8.9-inch flat-panel display
Integral PLC Approx. 1700 logic commands
Accessories Electronic handwheel,
TS 220 or TS 632 workpiece touch probe system
1) 3-D straight line without radius compensation at 100% PLC utilization

With the iTNC programming station you
have the capability to program in plain
language just as you do at the machine, but
away from the noise and distractions of the
shop floor.

Program creation

Programming, testing and optimizing
HEIDENHAIN conversational or ISO
programs for the iTNC 530 with the
programming station substantially reduces
machine idle times. You do not need to
change your way of thinking. At the
programming station you program on the
same keyboard as at the machine.
Program archiving

Although the iTNC 530 features a hard disk
with a generous program memory capacity,
you should also back up your programs on
an external system.
Training with the iTNC Programming
Station

Since the iTNC programming station is
based on the software of the iTNC 530, it
is ideally suited for apprentice and
advanced training.

TNC training in schools

Because it can be programmed in ISO as
well as in conversational format, the iTNC
programming station is ideal for use in
schools for TNC programming training.
With the electronic handwheel from
HEIDENHAIN, you can use the feed drive
to make very precise movements in the
axis slides in proportion to the rotation of
the handwheel.

HR 410 and HR 420 portable handwheels
The axis keys and certain functional keys
are integrated in the housing. It allows you
to switch axes or setup the machine at any
time—and regardless of where you happen
to be standing. The HR 420 also features a
display for the position value, the feed rate
and spindle speed, the operating mode and
other functions, as well as an override
potentiometer for feed rate and spindle
speed.

Accessories

Electronic Handwheels
HR 130 for integration in the machine
operating panel

iTNC Programming Station
HR 130 and HR 150 panel-mounted
handwheels

HEIDENHAIN also offers panel-mounted
handwheels, which are integrated in the
machine operating panel or can be built-in
at another location on the machine. Up to
three HR 150 electronic handwheels can
be connected through an adapter.

HR 420 HR 410
SE 640
TS 220
TS 640

Tool and Workpiece Setup and Measurement
TS Workpiece Touch Probes
The TS 3-D touch probes from
HEIDENHAIN are used to probe workpieces.
They expand the capabilities of your
machine tools by enabling them to perform
setup, measuring and inspection functions.
They can also be used to digitized 3-D
surfaces.

The TS 220/TS 230, TS 440 and TS 640
3-D touch probes approach the workpiece
until the stylus is deflected. This releases a
trigger signal in the TS that is transmitted to
the control either through a cable (with TS
220/TS 230) or as an infrared light signal (TS
440/TS 640). Within microseconds, the
control saves the actual position value for
subsequent use.

TS 220/TS 230 TS 440/TS 640
Probe repeatability 2 _ ± 1 µm at a probing velocity of 1 m/min
Permissible stylus deflect.
(for stylus length 40 mm)
Approx. 5 mm in all directions
Power supply TS 220: 5 V ±5%from the NC
TS 230: 10 to 30 V from the NC
Two 3.6 V lithium batteries
Interface to NC Control TS 220: TTL signal levels
TS 230: HTL signal levels
HTL signal levels

over SE 640 transceiver unit
Signal transmission Via cable Via infrared beam with 360°
transmission
Probe velocity Max. 3 m/min
Styli Ball-tip styli in various diameters and lengths
Protection (IEC 60529) IP 55 IP 67

TS 440
45
TT 130
TT tool touch probe

The TT 130 is a 3-D touch trigger probe for
tool setting and inspection. The trigger
signal is generated through a wear-free
optical switch that ensures high reliability
The standard disk-type probe contact
assures protection against collision since
the diameter of the touch probe housing is
smaller than the disk diameter.
With its rugged design and high IP 67 class
of protection, the TT 130 can be installed
TT 130

Probe repeatability < ±1 µm
Permissible deflection
of the probe contact
Approx. 5 mm in all directions
Power supply 10 to 30 V from the NC
Interface to NC control

HTL signal levels
Probe contact Hardened steel disk, _ 40 mm
Protection (IEC 60529) IP 67
on the machine table within the work
envelope. The tool can be measured for
length and diameter, and checked for
breakage or wear directly on the machine
with the tool in the spindle.
The TT 130 is attached to the machine
table by a bolt through its mounting base
into a T-slot. No adjustment is required,
since the probe contact is pre-adjusted to
the mounting face.

Measured Value Acquisition and Display
Digital Readouts

Position display units serve to visualize the
values measured with linear encoders,
length gauges, rotary encoders or angle
encoders. Areas of application include:
_ Measuring and inspection equipment
_ Dividing apparatuses
_ Monitoring of measuring equipment
_ Manual machine tools
_ Measuring machines

Position displays from HEIDENHAIN are
designed to be highly user-friendly.

Typical characteristics are:
_ Highly readable, alphanumeric display
_ Simple, logically arranged keypad
_ Ergonomically designed push-button keys
_ Splash-protected front panel
_ Sturdy die-cast housing

Most position display units feature a data
interface for further processing in the
higher-level electronics or simply to print
out the measured values.

Counter cards

Counter cards for installation in PCs or
subsequent electronics simplify the
realization of customized solutions such
as measuring electronics, controls or
automation devices.

HEIDENHAIN Digital Readouts
for manually operated machine tools
Increased productivity with
HEIDENHAIN digital readouts
Digital readouts from HEIDENHAIN
increase the productivity of manually
operated machine tools or measuring
equipment. They save time, increase the
dimensional accuracy of machined parts,
and enhance operating ease. Regardless
of whether they are installed on new
equipment or are retrofitted to machines
already in operation, HEIDENHAIN ND or
POSITIP display units with the appropriate
LS or LB linear encoders are easily fitted to
any model of machine or type of
equipment, whatever the application and
number of displayed axes.
Fast

HEIDENHAIN’s digital readouts save time.
The distance-to-go display feature allows
the user to approach the next nominal
position quickly and reliably, simply by
traversing to a display value of zero.
Datums can be set wherever needed. This
simplifies positioning, especially for
workpieces with complicated dimensions.
Cycles help the user mill or drill hole
patterns and rectangular pockets. The
positions are approached directly using the
distance-to-go display.

On lathes, the sum display feature for
saddle and top slide contributes to more
accurate positioning. If taper dimension
data are not complete, the display will help
the user to calculate the angles.

The POSITIP is ideal for small-batch
production, because repetitive machining
sequences can be stored as programs and
then used as often as required.

Reliable

A highly readable display shows the
measured positions with respect to the
selected datum. As a result, the probability
of error is reduced and machining becomes
more reliable.

POSITIP’s graphic positioning aid improves
the speed and reliability of the
distance-to-go display. Input of geometric
data is made easy with the graphic display
function.

Accurate

On older machine tools, precise machining
in the range of 0.01 mm (0.0005 in.) is a
matter of luck. Worn machine elements
make exact dial and vernier settings
impossible. Linear encoders from
HEIDENHAIN sense machine slide
movement directly. The backlash caused
by mechanical transfer elements such as
lead screws, racks and gears therefore has
no influence. By determining the slide
position directly, you achieve higher
machining accuracy and reduce scrap rates.
Position displays for manually operated machine tools Series Page
For up to six axes For positioning devices, milling machines, and lathes POSITIP 48
For two and three axes For positioning devices, milling machines, etc.
For lathes

ND 700
ND 700
Measured value display units For length and angle ND 200B 50
Counter card For PCs IK 220 51

POSITIP, ND Position Display Units
for up to 6 axes

A digital readout (DRO) consists of one or
more linear encoders for traverse
measurement and a display unit for position
values. DROs are typically fitted or
retrofitted on:

_ Machine tools such as milling, drilling and
boring machines, lathes, electrical
discharge machines, grinding machines
_ Measuring machines

Features:
_ User-friendly functions for easier
operation of manual machines and
equipment

_ Problem-free installation,
maintenance-free operation
_ Fast payback with economical use
KT Edge Finder

The 3-D edge finder is a triggering probe.
Used together with the HEIDENHAIN
display units ND 720/ND 760 and POSITIP,
the KT simplifies workpiece locating and
speeds datum setting.

POSITIP 880
POSITIP 880

Display with conversational guidance and
contextual help on a flat screen,
graphic features, program memory
Applications Primarily for milling machines Primarily for
lathes

Axes Up to 6 axes from
A to Z
Up to 6 axes from
A to Z and Z0, ZS
Display step 5 µm, 1 µm or finer
Datums 99 1
Tool data For 99 tools
Functions Probing functions for datum setting,
primarily with the KT edge finder:
“Edge,” “Centerline“ and “Circle
Center”

_ Radius/diameter display
_ Separate or sum display
Distance-to-go display with nominal position input in absolute
or incremental values
Calculation and display of hole
pattern positions and rectangular
pockets with graphical display
Oversize allowance during
positioning, multipass turning
cycle
Cutting data calculator Taper calculator
Programming and storage of max. 999 program blocks
per program
Interface RS-232-C/V.24; Centronics


ND 700 Series

Displays with conversational guidance
Primarily for milling machines Primarily for
lathes

ND 710: X, Y
ND 750: X, Y, Z
ND 720: X, Y
ND 760: X, Y, Z
ND 730: X, Z
ND 770: X, Z0, Z
5 µm or 1 µm 5 µm, 1 µm or finer
2 (switchable to 9) 1
For 1 tool For 9 tools
Probing functions for
datum setting with the
tool:

“Edge,” “Centerline“ and
“Circle Center”
Probing functions for
datum setting, primarily
with the KT edge finder:
“Edge,” “Centerline“ and
“Circle Center”
_ Radius/diameter
display
_ Separate or sum
display for Z and Z0
(only ND 770)

Distance-to-go display with nominal position input in absolute or incremental values
Calculation and display of positions for
circular and linear hole patterns
–
– Taper calculator
– –
– RS-232-C/V.24 –

ND 760

ND 200B Measured Value Display Units
for length and angle

The ND 281B and ND 282B offer functions
for sorting and tolerance checking or finding
the minimum and maximum values from a
series of measurements. Their switching
inputs and outputs suit them also for use in
equipment with simple automated tasks.
The ND 231B with sum/difference display
allows you to connect two encoders.
The ND 281B can be switched to
display angular position in degrees or
degrees/minutes/seconds.

The ND 200B series serves to display
measured values from one length gauge,
linear encoder, or angle encoder with
sinusoidal output signals (11 µAPP).
The ND 281B display unit can also be
connected with one linear or angle encoder
with 1 VPP signals.

Display units with serial RS-232-C data
output or parallel BCD data output are
available for measuring and inspection
stations at which the results of
measurement are transmitted to a
printer or a PC for further processing.
ND 221B ND 281B ND 282B ND 231B with
2 signal inputs

Display step
Length 10 µm, 5 µm, 1 µm and finer
Angle – 1° to 0.0001°
or 1”

Signal input _11 µAPP _11 µAPP
or
_1 VPP
(switchable)
_11 µAPP 2 ×_11 µAPP
Data interface RS-232-C/V.24 BCD RS-232-C/V.24
Functions – Sorting and tolerance checking,
Min./max. evaluation
Sorting and tolerance
checking Sum/difference display
Switching inputs, switching outputs


IK Counter Card
IK 220
PC Counter Card

The IK 220 is an expansion board for
AT-compatible PCs for recording the
measured values of two incremental or
absolute linear or angle encoders. The
subdivision and counting electronics
subdivide the sinusoidal input signals to
generate up to 4096 measuring steps. A
driver software package is included in
delivery.

IK 220

Input signals
(switchable)
_1 VPP _11 µAPP EnDat SSI
Encoder inputs 2 D-sub connections (15-pin) male
Input frequency (max.) 500 kHz 33 kHz –
Cable length (max.) 60 m 10 m
Signal transmission
(signal period: meas. step) Up to 4096-fold
Data register for measured
values (per channel)
48 bits (44 bits used)
Internal memory For 8192 position values
Interface PCI bus (plug and play)
Driver software
and demonstration
program

For Windows 95/98/NT/2000/XP
in VISUAL C++, VISUAL BASIC and BORLAND DELPHI
Dimensions Approx. 190 mm × 100 mm


Length Measurement
Angle Measurement
Brochure
Sealed Linear Encoders
Contents:
Incremental Linear Encoders
LB, LF, LS
Absolute Linear Encoders
LC
Brochure
Length Gauges
Contents:
HEIDENHAIN-SPECTO
HEIDENHAIN-METRO
HEIDENHAIN-CERTO
Brochure
Angle Encoders
Contents:
Incremental Angle Encoders
ERA, ERM, ERO, RON, RPN, ROD
Absolute Angle Encoders
RCN
Brochure
Rotary Encoders
Contents:
Incremental Rotary Encoders
ERN, ROD
Absolute Rotary Encoders
ECN, EQN, ROC, ROQ
Brochure
Exposed Linear Encoders
Contents:
Incremental Linear Encoders
LIP, PP, LIF, LIDA
Brochure
Position Encoders
for Servo Drives
Contents:
Rotary Encoders
Angle Encoders
Linear Encoders

HEIDENHAIN is represented by
subsidiaries in all important industrial
nations. In addition to the addresses listed
here, there are many service agencies
located worldwide. For more information,
visit our Internet site or contact
HEIDENHAIN in Traunreut, Germany.

Automation and Metrology is a distributor for Heidenhian USA