Encoders for Servo Drives - 112 Pages

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Catalogue excerpts

Encoders for Servo Drives

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This catalog is not intended as an overview of the HEIDENHAIN product program. Rather it presents a selection of encoders for use on servo drives. Brochure Rotary Encoders In the selection tables you will find an overview of all HEIDENHAIN encoders for use on electric drives and the most important specifications. The descriptions of the technical features contain fundamental information on the use of rotary, angular, and linear encoders on electric drives. The mounting information and the detailed specifications refer to the rotary encoders developed specifically for drive technology. Other rotary...

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Overview Explanation of the selection tables Rotary encoders for integration in motors Rotary encoders for mounting on motors Rotary encoders and angle encoders for integrated and hollow-shaft motors Exposed linear encoders for linear drives Technical features and mounting information Rotary encoders and angle encoders for three-phase AC and DC motors Linear encoders for linear drives Safety-related position measuring systems Measuring principles Measuring accuracy Mechanical designs, mounting and accessories General mechanical information Specifications ECN/EQN 1100 series Rotary encoders with...

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Encoders for servo drives Controlling systems for servo drives require measuring systems that provide feedback for the position and speed controllers and for electronic commutation. The properties of encoders have decisive influence on important motor qualities such as: • Positioning accuracy • Speed stability • Bandwidth, which determines drive command-signal response and disturbance rejection capability • Power loss • Size • Noise emission • Safety Digital position and speed control Rotary encoder (actual position value, actual speed value, commutation signal) Position controller Current controller HEIDENHAIN...

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All the HEIDENHAIN encoders shown in this catalog involve very little cost and effort for the motor manufacturer to mount and wire. Encoders for rotary motors are of short overall length. Some encoders, due to their special design, can perform functions otherwise handled by safety devices such as limit switches. Motor for “digital” drive systems (digital position and speed control) Rotary encoder Angle encoders Linear encoders

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Explanation of the selection tables The tables on the following pages list the encoders suited for individual motor designs. The encoders are available with dimensions and output signals to fit specific types of motors (DC or AC). Rotary encoders for mounting on motors Rotary encoders for motors with forced ventilation are either built onto the motor housing or integrated. As a result, they are frequently exposed to the unfiltered forced-air stream of the motor and must have a high degree of protection, such as IP64 or better. The permissible operating temperature seldom exceeds 100 °C. In the selection...

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Rotary encoders, modular encoders and angle encoders for integrated and hollow-shaft motors Rotary encoders and angle encoders for these motors have hollow through shafts in order to allow supply lines, for example, to be conducted through the motor shaft—and therefore through the encoder. Depending on the conditions of the application, the encoders must either feature up to IP66 protection or—for example with modular encoders using optical scanning—the machine must be designed to protect them from contamination. In the selection table you will find: • Angle encoders and modular encoders with the...

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Selection guide Rotary encoders for integration in motors Protection: up to IP40 (EN 60 529) Overall dimensions Mechanically permissible speed Natural freq. of stator connection Maximum operating temperature Voltage supply Rotary encoders with integral bearing and mounted stator coupling ECN/EQN/ ERN 1100 Rotary encoders without integral bearing ECI/EQI 1100

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Signal periods per revolution Distinguishable revolutions Further information 3 block commutation signals 3 block commutation signals – Z1 track for sine commutation

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Rotary encoders for mounting on motors Protection: up to IP64 (EN 60 529) Overall dimensions Mechanically permissible speed Natural freq. of stator connection Maximum operating temperature Voltage supply Rotary encoders with integral bearing and mounted stator coupling ECN/ERN 100 Stator coupling Universal stator coupling With two shaft clamps (only for hollow through shaft): 12 000 rpm Stator coupling:  1500 Hz Universal stator coupling:  1400 Hz Stator coupling 6000 rpm With two shaft clamps (only for hollow through shaft): 12 000 rpm Stator coupling:  1500 Hz Universal stator coupling:...

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Signal periods per revolution Distinguishable revolutions Further information Catalog: Rotary Encoders Catalog: Rotary Encoders

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Rotary encoders for mounting on motors Protection: up to IP64 (EN 60 529) Overall dimensions Mechanically permissible speed Natural freq. of stator connection Maximum operating temperature Voltage supply Rotary encoders with integral bearing and mounted stator coupling ECN/EQN/ERN 1000 Rotary encoders with integral bearing and torque supports for Siemens drives EQN/ERN 400

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Signal periods per revolution Distinguishable revolutions Further information Catalog: Rotary Encoders 3 block commutation signals

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Rotary encoders for mounting on motors Protection: up to IP64 (EN 60 529) Overall dimensions Mechanically permissible speed Natural freq. of stator connection Maximum operating temperature Voltage supply Rotary encoders with integral bearing for separate shaft coupling ROC/ROQ/ROD 400 RIC/RIQ Synchro flange Rotary encoders with integral bearing for separate shaft coupling ROC/ROQ/ROD 1000 Functional safety on request After integral 5/10-fold interpolation Only clamping flange

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Signal periods per revolution Distinguishable revolutions Further information Catalog: Rotary Encoders Catalog: Rotary Encoders

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Rotary encoders and angle encoders for integrated and hollow-shaft motors Series Overall dimensions Mechanically permissible speed Natural freq. of stator connection Maximum operating temperature Angle encoders with integral bearing and integrated stator coupling RCN 2000 Modular angle encoders with optical scanning ERA 4000 Steel scale drum ERA 7000 For inside diameter mounting ERA 8000 For outside diameter mounting Modular angle encoders with magnetic graduation ERM 2200 Signal period of approx. 200 µm ERM 2400 Signal period of approx. 400 µm ERM 2400 Signal period of approx. 400 µm ERM 2900...

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