Specifications
WD Scorpio ML160M
8
RELEASED 1/16/09 (WD CONFIDENTIAL)
2679-701205-A00
2.4.2
Input Voltage Requirements
The input voltage requirement for these drives is +5.0V ± 5%.
2.4.3
Ripple
2.5
Environmental Specifications
2.5.1
Shock and Vibration
Table 2-1. Shock and Vibration
Operating Vibration
Drives are tested by applying a random or swept sinusoidal excitation in each linear axis, one
axis at a time. The drive incurs no physical damage and no hard errors while operating and
subjected to continuous vibration not exceeding the level listed in Table 2-1. Operating
performance may degrade during periods of exposure to continuous vibration.
Non-Operating Vibration
Note
: This specification applies to handling and transportation of unmounted drives.
Drives are tested by applying a random or swept sinusoidal excitation in each linear axis, one
axis at a time. The drive incurs no physical damage when subjected to continuous vibration not
exceeding the level listed in Table 2-1.
Drive Generated Vibration
Drives are tested by supporting a single drive horizontally in a free-free state and measuring
the side-to-side vibration. Self vibration may not exceed the level listed in Table 2-1.
Rotational Shock Non-Operating
Drives are tested by applying a rotational force centered around the actuator pivot. The drive
incurs no physical damage when subjected to the rotational force specified in Table 2-1.
Packaged Shock and Vibration
The shipping packaging is designed to meet the National/International Safe Transit
Association (N/ISTA) standards for packaged products. The drive incurs no physical damage
when subjected to the N/ISTA standards.
+5 VDC
Maximum
Frequency
100 mV (double amplitude)
0-30 MHz
Shock
Operating (2 ms)
300G
Non-operating (1 ms)
900G
Note: Half-sine wave, measured without shock isolation and without non-recoverable errors.
Vibration
Operating
0.00459 g2/Hz (10-500 Hz)
Non-operating
0.05102 g2/Hz (10-500 Hz)
Drive Generated Vibration
Operating
0.15 gm-mm average with the drive in an unconstrained condition
Rotational Shock Non-Operating
Amplitude
30K rad/sec
2
Duration
2 ms
