Fujitsu MAB3091SC Product Manual - Page 23

MAB3091

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(1) Disks The disks have an outer diameter of 95 mm (3.74 inch) and inner diameter of 25 mm (0.98 inch). The disks are good for at least 10,000 contact starts and stops. Each model contains following number of disks. MAA3182:10 MAB3091, MAC3091:5 MAB3045, MAC3045:3 (2) Heads The MR (Magnet - Resistive) of the CSS (contact start/stop) type heads are in contact with the disks when the disks are not rotating, and automatically float when the rotation is started. Figure 1.7 shows the configuration of disks and heads MAA3182 MAB3091, MAC3091 MAB3045, MAC3045 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 6 6 7 7 12 8 13 9 14 15 16 17 18 Head No. Figure 1.7 Disk/head configuration (3) Spindle motor The disks are rotated by a direct-drive hall-less DC motor. The motor speed is controlled by a feedback circuit using the counter electromotive current to precisely maintain the speed at ±0.5% of the specified speed. 1 - 8 C141-E035-03EN

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C141-E035-03EN
1 - 8
(1)
Disks
The disks have an outer diameter of 95 mm (3.74 inch) and inner diameter of 25 mm (0.98
inch).
The disks are good for at least 10,000 contact starts and stops.
Each model contains
following number of disks.
MAA3182:10
MAB3091, MAC3091:5
MAB3045, MAC3045:3
(2)
Heads
The MR (Magnet - Resistive) of the CSS (contact start/stop) type heads are in contact with the
disks when the disks are not rotating, and automatically float when the rotation is started.
Figure 1.7 shows the configuration of disks and heads
Figure 1.7
Disk/head configuration
(3)
Spindle motor
The disks are rotated by a direct-drive hall-less DC motor.
The motor speed is controlled by a
feedback circuit using the counter electromotive current to precisely maintain the speed at
±0.5% of the specified speed.
MAB3045, MAC3045
MAB3091, MAC3091
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
12
13
14
15
16
17
18
MAA3182
Head No.
0
1
2
3
4