Product Information

ROD 200
ROD 700
ROD 800
Incremental Angle Encoders
with Integral Bearing for
Separate Shaft Coupling

07/2022

ROD 200 series• For a separate shaft coupling• System accuracy: ±5”

Incremental
ROD 270



Radial cable (can also be used axially)
A = BearingÀ = Position of the reference mark signal ±5°Á = Direction of shaft rotation for output signals as per the interface description

ROD 280

Measuring standard

DIADUR circular scale with incremental track

Line count

18 000

System accuracy±5”

Position error per signalperiod

 ±0.7”

Interface« TTL» 1 VPP

Integrated interpolation
Output signals/rev

10-fold
180 000–
18 000

Reference mark*One

ROD 280: One
ROD 280 C: Distance-coded

Cutoff frequency –3 dB
Output frequency
Edge separation a– 1 MHz 0.22 µs

 180 kHz––

Elec. permiss. shaft speed

 333 rpm

–Electrical connection*

Cable (1 m), with or without a12-pin M23 coupling (male)

Cable length1)

 100 mSupply voltage

DC 5 V ±0.5 V/ 150 mA (without load)

Shaft

Solid shaft D = 10 mm

Mech. permissible speed 10 000 rpm

Starting torque 0.01 Nm at 20 °C

Moment of inertia of rotor

20 · 10–6 kgm2

Shaft load

Axial: 10 N
Radial: 10 N at shaft end

Vibration 55 Hz to 2000 Hz
Shock 6 ms

 100 m/s2 (EN 60068-2-6)
 200 m/s2 (EN 60068-2-27)

Operating temperature

Frequent flexing:
Stationary cable:

Protection EN 60529

IP64

Mass

 0.7 kg

18 000 150 m

–10 °C to 70 °C–20 °C to 70 °C* Please select when orderingWith HEIDENHAIN cable1)

2

Product Information ROD 200/700/800    07/2022

Product Information ROC 200/700/800    07/2022

3

ROD 780/ROD 880• For a separate shaft coupling• System accuracy: ±1” or ±2”

Incremental
ROD 780

ROD 880

Measuring standard

DIADUR circular scale with incremental track

Line count*

18 00036 00036 000

System accuracy

±2”

±1”

Position error per signal
period

18 000 lines:  ±0.7”
36 000 lines:  ±0.35”

 ±0.35”

Interface» 1 VPP

Reference mark*ROD x80: One
ROD x80 C: Distance-coded

Cutoff frequency –3 dB

 180 kHzElectrical connection*

Cable (1 m), with or without a12-pin M23 coupling (male)

Cable length1)

 150 mSupply voltage

DC 5 V ±0.5 V/ 150 mA (without load)

Shaft

Solid shaft D = 14 mm

Mech. permissible speed

 1000 rpm

Starting torque 0.012 Nm at 20 °C

Moment of inertia of rotor

0.36 · 10–3 kgm2

Shaft load

Axial: 30 N
Radial: 30 N at shaft end

Vibration 55 Hz to 2000 Hz
Shock 6 ms

 100 m/s2 (EN 60068-2-6)
 200 m/s2 (EN 60068-2-27)

Operating temperature

0 °C to 50 °C

Protection EN 60529

IP64Mass

 2.4 kg* Please select when orderingWith HEIDENHAIN cable1)

Radial cable (can also be used axially)
A = Bearing
1 = Position of the reference mark signal ±5°
2 = Direction of shaft rotation for ascending position values

4

Product Information ROD 200/700/800    07/2022

Product Information ROC 200/700/800    07/2022

5

MountingK 03 diaphragm coupling
ID 200313-04

Angle encoders of the ROD product family
require a separate coupling for connection
to the drive shaft. The shaft coupling
compensates for axial movement andmisalignment between the shafts, thereby
preventing excessive encoder bearing
loads. For realizing high accuracies, it isnecessary that the shaft of the angle
encoder be optimally aligned with the shaftof the machine. The HEIDENHAIN productportfolio includes diaphragm couplings andflat couplings designed for connecting theshaft of the ROD angle encoder to thedrive shaft.
Mounting
ROD angle encoders have an integral
mounting flange with a centering collar.
The encoder shaft is connected to themachine shaft by means of a diaphragm
coupling or flat coupling.

Rotary table

Additional
protection
against fluids

K 18 flat coupling
ID 202227-01

Mounting example
for the ROD 880
RODCentering collar

Shaft couplings
The shaft coupling compensates for axial
movement and misalignment between theencoder shaft and the drive shaft, thereby
preventing excessive encoder bearing
loads.
Radial offset l

Shaftcoupling

ROD 880

K 01 diaphragm coupling
ID 200301-02

Flat coupling

Mounting an ROD
with a flat coupling

Angular error a
Axial offset d

K 15 flat coupling
ID 255797-01

ROD 200 series

ROD 700 series, ROD 800 series

Shaft coupling

K 03
K 18
Diaphragm coupling Flat coupling

K 01
K 15
Diaphragm coupling Flat coupling

Hub bore

10 mm

14 mm

Kinematic transfer error±2”±3”
At l  0.1 mm and a  0.09°±1”±0.5”At l  0.05 mm and a  0.03°

Torsional rigidity

1500 Nm/rad

1200 Nm/rad

4000 Nm/rad

6000 Nm/rad

Permissible torque

0.2 Nm

0.5 NmPerm. radial offset l 0.3 mm

Perm. angular error a 0.5°

 0.2°

 0.5°

Perm. axial offset d 0.2 mm

 0.1 mm

 1 mmMoment of inertia (approx.) 20 · 10–6 kgm2
Permissible shaft speed

10 000 rpm

75 · 10–6 kgm2

200 · 10–6 kgm2

1000 rpm

3000 rpm

1000 rpm

2.5 Nm

1.2 Nm

180 g

250 g

Tightening torque of1.2 Nmclamping screws (approx.)
Mass

6100 g

117 g

K 16
Flat coupling4000 Nm/rad

K 16 flat coupling
ID 258878-01

400 · 10–6 kgm2410 g

Product Information ROD 200/700/800    07/2022

Product Information ROC 200/700/800    07/2022

7Interfaces» 1 VPP incremental signals« TTL incremental signals

Pin layout

Pin layout

12-pin M23 coupling

12-pin M23 connector

12-pin M23 coupling

12-pin M23 connector

15-pin D-sub connector
for HEIDENHAIN controls and the IK 220

15-pin D-sub connector
at the encoder or for the PWM

15-pin D-sub connector
for HEIDENHAIN controls and the IK 220

15-pin D-sub connector
at the encoder or for the PWM

Power supply

Incremental signals

Other signals

Power supply

Other signals3)

1221011568134

97/

122

1011568134

7/

91

92

1134

67

1012

5/8/13/15

14/

192

113

4

67

10

12

14

8/13/15

54

122

101

93

1114

7

5/6/8/15

13/4

122

101

93

1114

713

5/6/8

153)

UPSensor1)
UP0V

Sensor0V

A+A–

B+B–R+R–

VacantUPSensor1)
UP0V

Sensor0V

Ua1¢Ua2£

Ua0¤¥

VacantVacantBrown/
GreenBlueWhite/
GreenWhiteBrown

GreenGrayPink

RedBlack/Brown/
GreenBlueWhite/
GreenWhiteBrown

GreenGrayPink

RedBlackViolet/Yellow

1)

Vacant Vacant
VioletYellow

Cable shield connected to housing; UP = Power supply voltage
Sensor: The sense line is connected in the encoder with the corresponding power line.
Vacant pins or wires must not be used!
1)
LIDA 2xx: Vacant

www.heidenhain.com

Product Information ROD 200/700/800    07/20221)

2)

Cable shield connected to housing; UP = Power supply voltage
Sensor: The sense line is connected in the encoder with the corresponding power line.
Vacant pins or wires must not be used!
1)
2)
LIDA 2xx: Vacant/ERO 14xx: Vacant3)
Exposed linear encoders: Conversion from TTL to 11 µAPP for the PWT, otherwise unassigned

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

8

Incremental signals

1385973 · 00 · A · 02 · 07/2022 · PDF

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

More information:
Comply with the requirements described in the following documents to ensure correctand intended operation:• Brochure: Angle Encoders with Integral Bearing			 591109-xx• Brochure: Interfaces of HEIDENHAIN Encoders			1078628-xx• Brochure: Cables and Connectors						1206103-12
For brochures and Product Information documents, visit www.heidenhain.com.