Table Of Contents - Honeywell BR3C9 Operation Manual

CONTENTS
1. GENERAL DESCRIPTION
Power Off Sequence
3-11
General
1-1
Logic Chassis Assembly
3-11
Assembly Location 1-1
Deck Assembly
3-11
Introduction 1-1
General
3-11
Top Cover Assembly 1-4
Drive Motor
3-11
Deck Assembly
1-4
Hysteresis Brake
3-11
AC Power Supply
1-4
Spindle Assembly
3-13
Logic Chassis- 1-4
Actuator
3-13
Equipment Identification
1-5
Transducers
3-17
2.
OPERATION
First Seek Interlock
3-17
Introduction
2-1
Blower System
3-17
Operating Instructions
Disk Pack
3-19
2-4.1
Power Application
2-4.1
3B. LOGIC FUNCTIONS
Power Down
2-6
Introduction
3-20
Disk Pack Handling
2-6
Device Level Interface
3-20
Disk Pack Installation
2-6
Commands
3-20
Disk Pack Removal 2-7
Command Execution
3-20
Head Alignment Card
2-7
Seek Operations
3-41
Ofr Line Tester
General 3-41
Preparation for Use 2-7
Servo Circuit Operation
3-43
Operating Procedures
2-11
Basic Seek Operations
3-45
Error Detection 2-11
Introduction
3-45
Seek Operations 2-11
Accelerate Phase
3-45
Head Selection 2-13
Coast Phase
3-48
Read Operations 2-13
Decelerate Phase
3-48
Write Operations 2-14
Stop Phase
3-48
Short Seeks
3-49
THEORY OF OPERATION 3.
Types of Seeks
Introduction
3-49
Introduction
3-49
3A. ELECTROMECHANICAL FUNCTIONS
First Seek (Load)
3-49
Introduction 3-1
Direct (forward/reverse)Seek
3-52
Power Supply
3-4
Return to Zero Seek
3-59
General
3-4 End of Travel Detection
3-59
AC
foe
Distribution
3-4 Seek Status and Error Conditions
3-63
Local/Remote Control
3-4
General
3-63
Normal Status Conditions
3-63
General 3-4
Device Level Interface Errors
3-63
Local Control
3-4.1
Device Fault Conditions
3-64
Remote Control
3-4.1
Track Servo Circuit
3-64
Power On Sequence
3-4.1
General
3-64
Emergency Retract and Data Protection
3-8
Dibit Gating
3-66
Loss of AC Power
3-D
Track Servo Signal Generation
3-56
Control Interlock Opening
3-!J
Cylinder Pulse Generation
3-68
Loss of Speed
3-9
~Iachine Clock Circuits
3-68
Loss of DC Power
3-9
General 3-68
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