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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 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.
Medalist Pro 6450/6451 Product Manual, Rev. B 9