Hitachi HUS103036FL3600, HUS103030FL3800 Current transition for +12V, Start and Stop time

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4.2Power supply current

+12V Current

[A]

3.0

2.0

1.0

0

0

 

 

10

20

Time[S]

 

 

 

 

 

 

 

 

T0

T1

 

T2 T3

 

T0-T1: Power up

 

T0: Power on

 

 

 

T1-T2: Spin-up

 

T1: Accept start unit command or Auto Spin-up

 

T2-T3: Servo initialize

T2: Ready

 

 

 

T3-T4: Upload Code etc

 

 

 

 

T1-T4: Start up

 

 

 

 

 

Fig 4.1 Current transition for +12V

Note: A retry Spin-up operation may be attempted during the Start up process.

4.3Spindle Start and Stop

4.3.1Start and Stop Time

Table 4.2 Start and Stop time

Item

Typical

 

unit

Start

25

Note 1

s

Stop

25

Note 2

s

Note 1. Start time means that the time of becoming ready, after DC power has been applied in the case of Enable Auto Start mode, or after Start Unit command (immed=0) has accepted in other case. If internal retry is executed during the Start-up operation, the Start time may exceed typical value. It is recommended to have 60 seconds for the Start time. In the case of a spindle start-up failure, the time of an internal retry operation is 130 seconds maximum.

Caution

Note 2. Beginning of stop time is basically decided by +12v DC power off.

In case of +5v DC power off only, stop time is 65sec(typ). Do not move the drive until motor stop completely.

Stop time means that the time to stop the spindle rotation, after DC power has been shut off, or after stop operation has started.

Drawing No. Sheet No. Revision

K6610091

16/43

2005/2/23

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Contents Hitachi Global Storage Technologies K6610091 2005/2/23 Headline of safety caution General cautions for safetyInfluence for environment Safety cautions for this product Warranty and Limited Liability Table of Contents Page Features ModelsStandards and Related Documents Characteristics DescriptionEnvironmental conditions and reliability ConditionsVibration test direction Shock test direction Power measurement Operating DC power Interface DC Power RequirementCurrent transition for +12V Start and Stop timePage Connecting Methods Cabling layout Wide LVD drivePage Scsi Interface Page Scsi Commands Supported Mounting and Handling OrientationsHDA upper surface Spacer PCB parts side 25/43 2005/2/23 Temperature Limits unit C Temperature Measurement PointsPrecautions for handling Maintenance Interface connectors Physical interfaceInterface cable WIDE, Single-ended mode Interface cable WIDE, LVD modeConnector Layout Wide LVD drive Connector Layout SCA-2 LVD drive Connector Signal Name Contact Conductor Pin assignmentPin assignment of Scsi Bus Connector C1 WIDE, LVD mode Diffsens Pin assignment of Scsi Bus Connector C1 SCA-2, LVD mode ATN +ATNPin assignment of Auxiliary Connector C4 Wide LVD drive Pin assignment of Option Jumper Connector C3 Wide LVD driveJumper Socket setting Jumper connector layout Wide LVD driveScsi ID Wide LVD Wide LVD Enable Delayed Start Scsi bus Terminator Power Extension connector Jumper socket