Power-Up Sequence; Power-Down Sequence; Auto-Park; Power Specifications - Seagate Medalist 2520 Product Manual

Medalist 2520 Product Manual, Rev. A

1.9 Power-up sequence

1. Power is applied to the drive.
2. The spindle motor typically reaches operating speed in about 5
seconds.
3. The magnetic actuator-lock releases the actuator.
4. The drive synchronizes to servo pattern.
5. Calibration routines are performed.
6. The heads move back to track 0 and the drive is ready.

1.9.1 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. The read/write heads automatically move to the landing zone, which
is inside the maximum data cylinder.
3. The magnetic actuator-lock mechanism locks the arm. This completes
the power-down sequence.
4. Within 5 seconds, the drive spindle stops rotating.

1.10 Auto-park

During power-down, the read/write heads automatically move to the
landing zone. The heads park inside the maximum data cylinder and the
magnetic actuator-lock engages. When power is applied, the heads
recalibrate to track 0.

1.11 Power specifications

1.11.1 Power management

The drive supports Active, Idle and Standby power-management modes.
The power-management commands that the drive supports are listed in
the table on page 29. The table on page 11 shows the average typical
power consumption rates for each power-management mode. The test
criteria for each mode is defined below. The Idle and Standby timers are
disabled by default at the factory.
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