Seagate Elite 9 Guía de instalación descargar pdf (Pagina 16)

14 Elite 23 Installation Guide, Rev. A

Table 2: DC power requirements

Measured with an average reading DC ammeter. Instanta-

neous +12V current peaks will exceed these values.

A –10% tolerance is permissible during initial start of the spin-

dle but must return to ±5% before reaching 5400 r/min. The

±5% must be maintained after the drive signifies that its

power-up sequence has been completed and that the drive is

able to accept selection by the host initiator.

See the +12V current profile in the

Elite 23 Product Manual

(publication number 83329140).

This condition occurs when the Motor Start option is enabled

and the drive has not yet received a Start Motor command.

See “Conducted noise immunity” in the

Elite 23 Product Man-

ual.

The specified voltage tolerance is inclusive of ripple,

noise, and transient response.

Single-ended Differential

+5V

± 5%

+12V

± 5%

+5V

± 5%

+12V

± 5%

Voltage regulation

Amps

Maximum starting current

Peak DC

3, 6, 9

1.0 4.8 1.05 4.8

Delayed motor start (max)

1, 4

.85 .1 .85 .1

Peak operating current

Typical DC

Maximum (peak)

.98

1.1

1.6

2.8

1.2

1.95

1.6

2.8

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 47 48

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Seagate Elite 9 Guía de instalación Pagina 16

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