These days servo and stepper are two options in industries for motion control. How to decide which one to use in our required job, so decision can be made based upon
following specification table.
|
Servo
|
Stepper
|
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It is close
loop system which eliminates any chances of missing the commanded
position
|
Open loop
system lacks accuracy
|
|
Has high
torque at high speed
|
Has low
torque at high speed
|
|
Power is
required only when command is processed
|
Always
requires power to be at position commanded
|
|
It is
independent system
|
It requires
drivers for support
|
|
High speed
more than 3000 rpm
|
Only for
medium speed 1000-3000 rpm
|