Datasheet

7.2 DC power requirements
Connection to the drive should be made in a safety extra low voltage (SELV) circuit.
6200 mA200 mA
Startup (maximum RMS in
10 ms windows)
20 mA 20 mAStandby
5215 mA200 mASeek average
260 mA 250 mA Write
4230 mA220 mARead
84 mA 65 mA Low power idle average
3170 mA150 mAPerformance idle average
Population mean Population mean
Supply current (nominal
condition)
2±5%±5%Tolerance
1100 mV p-p max.70 mV p-p max.
Power supply ripple
(0-20Mhz)
+5 Volt+3.3 VoltsNominal supply
Notes+5V power supply case+3.3V power supply casePower supply
Notes
1. The maximum fixed disk ripple is measured at 3.3 / 5 V input of the drive.
2. The drive shall not incur damage for an over voltage condition of +25% (maximum duration of 20 ms)
on the 3.3 / 5 Volt nominal supply.
3. The idle current is specified at an inner track.
4. The read/write current is specified based on three operations of 63 sector read/write per 100 ms.
5. The seek average current is specified based on three operations per 100 ms.
6. The worst case operating current includes motor surge.
Figure 14. DC power requirements.
7.3 Reliability
7.3.1 Load/unload cycles
The drive will meet the specified error rates after the following Load/Unload cycles:
y 300,000 cycles (Load/Unload to be controlled by the drive microcode)
y 20,000 cycles (Emergency unloads)
7.3.2 Warranty
The warranty will be covered by contracts.
7.3.3 Life
To be discussed separately.
7.3.4 Preventive maintenance
None required.
Hard disk drive specification for DSCM-11000/-10512/-10340
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