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

Medalist Pro 2520/2160 Product Manual, Rev. C

1.9 Power-up sequence

1. Power is applied to the drive.
2. When power is applied, the LED stays on for about 1 second.
3. The spindle motor reaches operating speed in about 4 seconds.
4. The magnetic actuator-lock releases the actuator.
5. The drive achieves final speed-control lock.
6. The heads position over 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. Within 15 seconds, the drive spindle stops rotating.
3. The read/write heads automatically move to the landing zone, which
is inside the maximum data cylinder.
4. The magnetic actuator-lock mechanism locks the arm. This completes
the power-down sequence.

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 the drive supports are listed in the
table on page 27. 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
at the factory.
All measurements were taken at the drive power connector. A true RMS
9