User guide
Avago Technologies Motion Control Encoders in Electrical Motor Systems: Design Guide
10
Avago’s multi-turn absolute encoders are recognized
for their reliability and consistency in providing highly
accurate absolute information for multiple revolutions.
These encoders have a true mechanical system which
eliminates the need of a battery back-up in the event
of power failures or sudden stoppage. The absolute
multi-turn encoders come in a choice of 12 and 14-bits
for applications in a wide range of industries. They are
commonly used in industries requiring linear positioning,
such as the X&Y Positioning Tables found in medical
institutions and hospitals.
5.2 Encoders for BLDC Motor System:
By Operating Temperature
In choosing encoders for specic applications, one of the
main criteria to consider is the temperature conditions
where the encoder will be exposed. In many industrial
motor systems, the operating temperature can rise to
extreme levels. Using a low temperature encoder is not
suitable in such an environment. Avago oers encoders
with a wide range of temperature options to suit the need
for dierent operating conditions.
5.2.1 Extended temperature range
Encoders in the extended temperature category are
specically designed to tolerate operating temperatures
up to 140ºC, depending on the type of encoders selected.
They provide an integrated feedback solution within the
motor-housing and reduce system space requirements.
Applications include servo motors and certain industrial
automation systems.
Avago’s range of extended temperature encoders provide
highly reliable solutions that meet or exceed the standards of
performance demanded by industries. In addition, the price
competitiveness and features enable overall cost savings.
5.2.2 Standard temperature range
Encoders classied under the standard temperature
category can tolerate operating temperatures up to 85ºC,
depending on the encoders selected. Encoders here meet
the standard automation requirements in most industrial
automation applications. Applications include factory
automation systems, semiconductor equipments, oce
automation and consumer applications.
Design engineers have the option of choosing between
modular units (encoder alone) or integrated solutions
complete with customized housing that meet
specic requirements.