114 Chapter
5
Planning for Installation and Operation
5.7.5
Vibration and Shock Tolerances
Table 5.21 lists the vibration and shock tolerance data for the 9900 subsystem. The 9900 can
be subjected to vibration and shock up to these limits and still perform normally. The user
should consider these requirements if installing the 9900 near large generators located on
the floor above or below the 9900 subsystem. Generators or any other source of vibration, if
not insulated or shock-mounted, can cause excessive vibration that may affect the
subsystem.
Table 5.21 Vibration and Shock Tolerances
Condition Operating
Nonoperating
Shipping or Storage
Vibration
0.01” (0.25 mm), 5~10 Hz
0.05
g
, 10~300 Hz
0.1” (2.5 mm), 5~10 Hz
0.5
g
, 10 to 70 Hz
0.002” (0.05 mm), 70~99 Hz
1.0
g
, 99 to 300 Hz
0.5
g
, 15 min.
*1
At four most severe resonance frequencies
between 5 to 200 Hz
Shock
—
- 8
g
, 15 ms
Horizontal: Incline Impact 4 ft (1.22 m)
*2
Vertical: Rotational Edge 0.3 ft (0.1 m)
*3
*1
: See ASTM D999-86, Standard Methods for Vibration Testing of Shipping Containers.
*2
: See ASTM D880-86, Standard Methods of Incline Impact Test for Shipping Containers.
*3
: See ASTM D775-80, Standard Methods for Drop Test for Loaded Boxes.
g
= acceleration equivalent to gravity (9.8 m/sec
2
)
Summary of Contents for 9900 Series
Page 1: ...Hitachi Freedom Storage Lightning 9900 User and Reference Guide ...
Page 2: ......
Page 6: ...vi Preface ...
Page 14: ...xiv Contents ...
Page 42: ...28 Chapter 2 Subsystem Architecture and Components ...
Page 132: ...118 Chapter 6 Troubleshooting ...
Page 134: ...120 Appendix A Unit Conversions ...