Siemens SLI-5310 Betriebsanleitung PDF herunterladen (Seite 7)

Rotary encoders, modular rotary 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 IP 66 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 ﬁ nd

• Angle encoders and modular encoders with the measuring

standard on a steel drum for shaft speeds up to 42 000 min

–1

• Encoders with integral bearing, with stator coupling or modular

design

• Encoders with high quality absolute and/or incremental

output signals

• Encoders with good acceleration performance for a broad

bandwidth in the control loop

For selection table see page 14

Linear encoders for linear motors

Linear encoders on linear motors supply the actual value both for

the position controller and the velocity controller. They therefore

form the basis for the servo characteristics of a linear drive. The

linear encoders recommended for this application:

• Have low position deviation during acceleration in the measuring

direction

• Have high tolerance to acceleration and vibration in the lateral

direction

• Are designed for high velocities

• Provide absolute position information with purely digital data

transmission or high-quality sinusoidal incremental signals

Exposed linear encoders are characterized by:

• Higher accuracy grades

• Higher traversing speeds

• Contact-free scanning, i.e., no friction between scanning head

and scale

Exposed linear encoders are suited for applications in clean

environments, for example on measuring machines or production

equipment in the semiconductor industry.

For selection table see page 16

Sealed linear encoders are characterized by:

• A high degree of protection

• Simple installation

Sealed linear encoders are therefore ideal for applications in

environments with airborne liquids and particles, such as on

machine tools.

For selection table see page 18

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