MPB3021ATModelModel

Spindle

Actuator

1

 

0

 

MPB3032ATT Model

 

Spindle

Actuator

2

 

1

 

0

 

MPB3052AT Model

 

Spindle

Actuator

4

 

3

 

2

 

1

 

0

 

MPB3043AT Model

 

Spindle

Actuator

3

 

2

 

1

 

0

 

MPB3064AT Model

 

Spindle

Actuator

5

 

4

 

3

 

2

 

1

 

0

 

Figure 2.2 Configuration of disk media heads

(3)Spindle motor

The disks are rotated by a direct drive Hall-less DC motor.

(4)Actuator

The actuator uses a revolving voice coil motor (VCM) structure which consumes low power and generates very little heat. The head assembly at the edge of the actuator arm is controlled and positioned by feedback of the servo information read by the read/write head. If the power is not on or if the spindle motor is stopped, the head assembly stays in the specific CSS zone on the disk and is fixed by a mechanical lock.

C141-E045-02EN

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Image 28
Fujitsu MPB3021AT, MPB3054AT, MPB3032AT, MPB3052AT manual MPB3043AT Model, Configuration of disk media heads