Fujitsu MAG3182FC, MAG3091FC, MAF3364FC manual Disk/head configuration

(1)Disks

The disks have an outer diameter of 84 mm (3.31 inch) and inner diameter of 25 mm (0.98 inch). The disks are good for at least 15,000 contact starts and stops. Each model contains following number of disks.

MAF3364:10

MAG3182:5

MAG3091:3

(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 1.5 shows the configuration of disks and heads.

MAF3364	MAG3182	MAG3091
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 1.3	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.

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