Seagate Medalist 1640, Руководство по эксплуатации продукта

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1.7.2 Power-down sequence
Caution. Do not move the drive until the motor has come to a complete
stop.
1. The power is turned off.
2. Within 3 seconds, the motor begins to spin down.
3. The read/write heads automatically move to the shipping zone, which
is inside the maximum data cylinder.
4. The actuator-lock mechanism locks the arm. This completes the
power-down sequence.
1.7.3 Auto-park
Upon power-down, the read/write heads automatically move to the
shipping zone. The heads park outside the maximum data cylinder and
the locking mechanism engages. When power is applied, the heads
recalibrate to track 0.
1.8 Power specifications
1.8.1 Power consumption
The drives supports Active, Idle, Standby and Sleep power-management
modes. The power-management commands the drive supports are listed
in the table on page 27. The table on page 10 shows the average typical
power consumption rates for each power-management mode. Each
mode is defined in the section following the table.
All measurements were taken at the drive’s power connector. A true RMS
meter is used to measure all modes except Standby. A DMM is used for
Standby measurements.
Medalist 1640 and 2140 Product Manual, January 1996 9