Seagate ST446452W Manuel D’Utilisation

16

Elite 47 Installation Guide, Rev. B

1

Measured with an average reading DC ammeter. Instanta-
neous +12V current peaks will exceed these values.

2

A –10% tolerance is permissible during initial start of the spin-
dle but must return to ±5% before reaching 5,357 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.

3

See the +12V current profile in the 

Elite 47 Product Manual

(publication number 83329280).

4

This condition occurs when the Motor Start option is enabled
and the drive has not yet received a Start Motor command.

5

See “Conducted noise immunity” in the 

Elite 47 Product Man-

ual. The specified voltage tolerance is inclusive of ripple,
noise, and transient response.

6

At power-up, the motor current regulator limits the +12V cur-
rent to an average value of less than 4.8A, although instanta-

Maximum starting current

Peak DC

 3, 6, 9

1.0

4.8

Delayed motor start (max)

.85

.1

Peak operating current

Typical DC

Maximum (peak)

.98
1.1

1.6
2.8