Mitsubishi Electronics A171SH Sleep Apnea Machine User Manual


 
Positioning Control The World of Positioning Control 1
1-3
Stepping motor
Positioning mechanism is simple.
If load is heavy, motor may step out and
displacement can occur.
Motor capacity is small.
Precision is poor at high speed.
DC servo system
Positioning precision is good.
Maintenance is required for motor
brushes.
It is not suitable for rotation at high
speed.
General purpose inverter and general
purpose motor
Multi-speed positioning is available
using high-speed counter.
High precision positioning is not
available.
Large torque is not available at start.
(Specialized inverter is required)
AC servo system
Precision is good.
Maintenance is not required.
Positioning address can be easily
changed.
It is compact, and offers high power.