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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
infl uence 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
Position
controller
Speed
controller
Decoupling Inverter
Current
controller
Speed
calculation
Rotary encoder ( actual position value,
actual speed value,
commutation signal)
HEIDENHAIN offers the appropriate
solution for any of a wide range of
applications using both rotary and linear
motors:
• Incremental rotary encoders with and
without commutation tracks, absolute
rotary encoders
• Incremental and absolute angle
encoders
• Incremental and absolute linear
encoders
• Incremental modular encoders
Rotary encoder
Antriebsgeber_en_2013.indd 4 12.11.2013 06:53:51
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