Mitsubishi Electric MELSEC FX Series - Clutch Brake; Stepping Motor

Actuators for positioning The Basics of Positioning Control
FX Positioning Control Systems 1 - 3
1.2.3 Clutch brake
Features and Drawbacks
● Frequent positioning is possible.
● Life of friction plate is limited.
● Change in positioning is difficult.
(When optical sensors or limit switches are used for stop)
1.2.4 Stepping motor
Features and Drawbacks
● Simple positioning mechanism.
● If load is heavy, motor may step out and displacement can occur.
● Motor capacity is small.
● Precision is poor at high speed.
Fig. 1-3: Schematic drawing
Clutch Brake
120030da.eps
Fig. 1-4: Schematic drawing
Stepping motor
120040da.eps
Motor
Clutch brake
unit
Speed reducer
Optical
sensor
Constant
quantity
feed hopper
Stepping
motor
Controller