6.0Physical/electrical specifications

This section provides information relating to the physical and electrical characteristics of the drive.

6.1AC power requirements

None.

6.2DC power requirements

The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive connector. Notes are shown following table 3.

Table 2: DC power requirements for ST3400755FC model

 

 

 

 

 

 

 

1 Gbit

 

2 Gbit

 

4 Gbit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes

(Amps)

(Amps)

(Amps)

(Amps)

(Amps)

(Amps)

 

 

 

 

 

 

 

 

 

Voltage

 

 

+5V

+12V [2]

+5V

+12V [2]

+5V

+12V [2]

 

 

 

 

 

 

 

 

 

Regulation

 

[5]

±5%

±5% [2]

±5%

±5% [2]

±5%

±5% [2]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[1] [7]

0.70

0.35

0.72

0.35

0.78

0.35

Avg idle current DCX

 

 

 

 

 

 

 

 

 

 

 

Maximum starting current

 

 

 

 

 

 

 

 

(peak DC) DC

3σ

[3]

0.82

1.67

0.84

1.67

0.90

1.67

(peak AC) AC

3σ

[3]

1.09

3.20

1.17

3.23

1.15

3.24

 

 

 

 

 

 

 

 

 

Delayed motor start (max) DC

3σ

[1] [4]

0.59

0.03

0.61

0.04

0.67

0.04

 

 

 

 

 

 

 

 

 

Peak operating current:

 

 

 

 

 

 

 

 

 

 

 

 

[1] [6]

0.72

0.66

0.75

0.67

0.81

0.67

Typical DCX

 

 

Maximum DC

3σ

[1]

0.74

0.73

0.76

0.74

0.83

0.74

Maximum (peak) DC

3σ

 

1.34

2.58

1.36

2.62

1.46

2.52

 

 

 

 

 

 

 

 

 

 

 

 

 

Cheetah NS FC Product Manual, Rev. A

23

Page 33
Image 33
Seagate ST3400755FC, ST3300955FC manual Physical/electrical specifications, AC power requirements, DC power requirements