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Heidenhain: Absolute modular rotary encoder ECI 1118

Heidenhain: Absolute Modular Rotary Encoder (singleturn) with inductive scanning without integral bearing ECI 1118

Heidenhain

Price : $296.00

Availability: Subject to availability
Order #: 728563-01

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Description

Specifications and Drawings

Heidenhain: Absolute Modular Rotary Encoder (singleturn) with inductive scanning without integral bearing ECI 1118

Measuring angles with rotary encoders

Mounting variants

In 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:

Simple mounting
Short overall length
High natural frequency of coupling
Hollow-through shaft possible

Rotary encoders with integral bearing that are conceived for 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.

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:

Large diameter of hollow shaft
For high shaft speeds
No additional starting torque

Rotary encoder without integral bearing

In addition to the system accuracy, the mounting and adjustment of the scanning head normally have a significant effect on the accuracy that can be achieved with rotary encoders without integral bearings. Of particular importance are the mounting eccentricity and radial runout of the measured shaft.

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.

ECI/EBI/EQI 1100 series

Absolute rotary encoders without integral bearing

High axial tolerance of up to ±0.4 mm
Blind hollow shaft
Robust inductive scanning
Positioning accuracy of down to ±120"
524 288 positions/rev.
Multiturn with up to 65 536 revolutions
Max. operating temperature: 115 °C
Interface: EnDat
Housing diameter ≈ 35 mm

ID	728563-01
Part Name	ECI 1118 EnDat22

Description	ECI 1118 Absolute modular rotary encoder (singleturn) with inductive scanning without integral bearing Positions per revolution: 262144 Data interface: EnDat22 Output code: Binary Power supply: 3.6 V ... 14 V Flange version: Synchro flange Ø 36.83 mm, overall length 9.9 mm, centering collar Ø 36.83 mm, length 2.45 mm Shaft: Blind hollow shaft for axial fastening, diameter 6 mm, depth 2.8 mm Degree of protection: IP00 (EN60529) Operating temperature: -20/+115 °C Electrical connection: Bent plug connector, double-row, 15-pin Pin configuration: D740561 Connecting direction: radial Included part: Screw M3 x16 -A2 ISO 4762 with Tuflok Please pay attention to the product documentation!