2.8.6.1Operating sweep sine vibration

The following lists the maximum operating sweep sine vibration levels that the drive may experience while meeting the performance standards specified. It consists of a forward and backward sweep from 10 Hz to 500 Hz to 10 Hz. The drive operates without a hard error while being subjected to the following vibration levels.

10 Hz to 500 Hz @ 2 oct/min

1.0 Gs (0 to pk). Maximum displacement may apply below 10 Hz.

2.8.6.2Operating random vibration

The test consists of 30 minutes of random vibration using the power spectral density (PSD) levels specified in the table below. The vibration test level is 0.67 Gs RMS. The drive operates without a hard error while being subjected to the following vibration levels.

Table 4:

Operating random vibration profile

 

 

 

 

 

Frequency (Hz)

 

G2/Hz

 

 

 

 

 

17

 

1.1 x E-03

 

 

 

 

 

45

 

1.1 x E-03

 

 

 

 

 

48

 

8.0 x E-03

 

 

 

 

 

62

 

8.0 x E-03

 

 

 

 

 

65

 

1.0 x E-03

 

 

 

 

 

150

 

1.0 x E-03

 

 

 

 

 

200

 

5.0 x E-04

 

 

 

 

 

500

 

5.0 x E-04

 

 

 

 

2.8.6.3Nonoperating sweep sine vibration

The following table lists the maximum nonoperating sweep sine vibration levels that the drive may experience while meeting the performance standards specified. It consists of a forward and backward sweep from 5 Hz to 500 Hz to 5 Hz. The drive does not incur any physical damage when subsequently put into operation.

10 Hz to 500 Hz @ 0.5 oct/min

5.0 Gs (0 to pk). Maximum displacement may apply below 22 Hz.

 

 

5 Hz to 10 Hz

25.4 mm peak to peak displacement.

 

 

12

Lyrion Series IDE Product Manual, Rev. B

Page 18
Image 18
Seagate ST760211DE manual Operating sweep sine vibration, Operating random vibration profile, Frequency Hz G2/Hz