Honeywell BR3E4 Manuals

Manuals and User Guides for Honeywell BR3E4. We have 1 Honeywell BR3E4 manual available for free PDF download: Operation Manual

Honeywell BR3E4 Operation Manual (237 pages)

Mass Storage Unit

Brand: Honeywell | Category: Computer Hardware | Size: 10.07 MB

Table of Contents
8
General Description
12
General
14
Assembly Location
14
Introduction
14
Top Cover Assembly
17
AC Power Supply
17
Logic Chassis
17
Equipment Identification
18
Operation
20
Introduction
22
Controls and Indicators
22
Write Circuits
24
Operating Instructions
26
Power Application
26
Power down
29
Disk Pack Handling
29
Disk Pack Installation
29
Disk Pack Removal
30
Head Alignment Card
30
Preparation for Use
30
Off Line Tester
30
Operating Procedures
34
Error Detection
34
Seek Operations
34
Off Line Tester Switch Functions
34
Head Selection
36
Read Operations
36
Write Operations
37
Theory of Operation
42
Electromechanical Functions
45
Introduction
45
Power Supply
45
General
45
Local/Remote Control
45
Power Distribution
45
Blower System
45
Local Control
46
Remote Control
46
Power on Sequence
46
Emergency Retract and Data Protection
51
Loss of AC Power 3-D
52
Control Interlock Opening 3-!J
52
Loss of Speed
52
Loss of DC Power
52
Power off Sequence
53
Power off Timing
53
Logic Chassis Assembly
54
Deck Assembly
54
General
54
Drive Motor
54
Hysteresis Brake
55
Spindle Assembly
56
Actuator
56
Head Loading
58
Transducers
60
First Seek Interlock
60
Blower System
60
Speed Detection
60
Disk Pack
62
Logic Functions
63
Introduction
63
Device Level Interface
63
Commands
63
Command Execution
63
Drive Block Diagram
64
Sector Circuit
64
Device Level Interface Lines
65
Command Decode
66
Signal Lines
68
Commands
72
Summary Status Request
77
Seek Operations
86
General
86
Servo Circuit Operation
88
Basic Seek Operations
90
Introduction
90
Accelerate Phase
90
Servo Circuit Simplified Signals
92
Coast Phase
93
Stop Phase
93
Short Seeks
94
Types of Seeks
94
Introduction
94
First Seek (Load)
94
Direct (Forward/Reverse)Seek
97
Direct Seek Flow Chart
98
Return to Zero Seek
104
End of Travel Detection
104
Seek Status and Error Conditions
108
General
108
Normal Status Conditions
108
Device Level Interface Errors
108
Device Fault Conditions
109
Track Servo Circuit
109
General
109
Track Servo Signal Generation
111
Cylinder Pulse Generation
112
General
113
Clock Generation
113
Dibits Detect
114
Write Clock
116
Machine Clock Circuit
116
Index Detection Circuit
117
Sector Circuit
117
Read/Write Operations
117
General
117
Head Selection
117
Write Operations
117
Index Detection Circuit
118
Read/Write Circuits Block Diagram
120
Track Format
121
Head Selection Circuit
122
Disk Surface Recording
124
General
124
Write Timing
128
General
129
Write Compensation Circuit
131
Write Compensation
132
Mfm
133
Writing Address Marks
133
Write Fault Detection
133
General
135
Read Circuits
137
AGC Amplifier Stage
137
Level Detection Circuit
139
Time Constant Control Circuit
140
Data Latch Circuit
141
Phase Lock Oscillator Circuit
142
Data Separator Circuit
142
Serdes Read Circuit
146
General
148
Sense Operations
148
General
149
Fault Detection
149
Diagnostic Operations
149
Device Pault Logic
149
Diagnostic Mode Logic
153
Introduction
168
O Panel Assembly
182
Circuit Breaker Box Assembly
185
Top Cover Asseably
187
Control Panel Assemb~Y
190
Deck Assembly
194
Power Supply Assembly
214
Logic Chassis Assembly
221
Sensing Board Assembly
231

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Honeywell BR3E4 Operation Manual (237 pages)

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