Control Data Corporation MAGNETIC PERIPHERALS FINCH 9410 Quick start guide

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&J 1:'\ CONTI\OL DATA
\::I r:I CORfO~TION
CONTROL DATA·
TM
FI NCH DISK DRIVE
MODEL 9410
GENERAL DESCRIPTION
OPERATION
77653532
INSTALLATION AND CHECKOUT
MAGNETIC PE~PHE~LS INC.
II/fj I:!\ • wbsIdw Y 01
• ., CONT~ DIITACOIU'QIVoTION
VOLUME 1
HARDWARE INSTALLATION/OPERATION MANUAL

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A14-ES8-F
'1M
9410 FINCH Disk Drive
INSTALLATION/OPERATION MANUAL VOLUME 1
REVISION
RECORD
R
E
DATE
SHEETS AFFECTED
V
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10
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I, 4/14
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B S,j.J.
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DfCI~
COPYRICHT <5> 1981
MACNETIC PERIPHERALS INC.
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Printed in the United States of AlMrica
All Rights Reserved
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MANUAL/SECTION REVISION STATUS
CHANGE
4 I • 7 • • 10
11
12
AUTHORITY
MDtJ'nAhll,. .... "",.
C>
PL 32103
PL32147
,'-
Address all comments concerning this
publication to the distributor or use
the enclosed user comment sheet located
in the back of this publication.
77653532-C

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TABLE' OF"CONTENTS
SECTION
.............................................................
PREFACE
EMI NOTICE
..........................................................
GENERAL DESCRIPTION
...............................................
1.1 INTRODUCTION ·
............................................... .
1. 2 GENERAL DESCRIPTION
1.2.1 Standard Features
1. 2•2 Optional Features
.........................................
......................................
........................................
1. 2. 3 Accessories
.............................................
1.2.4 Major Components
•••••••••• eo ••••••••••••••••••••••••••••
OPERATION
2.1
2.2
INTRODUCTION ·................................................
OPERATING AND PRELIMINARY DIAGNOSIS PROCEDURE .........
2.2.1 Operating Instructions
INSTALLATION AND CHECKOUT ..................................
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
· ............................................... .
INTRODUCTION
UNPACKING ....................................................
OPERATING ENVIRONMENT .....................................
SPACE ALLOCATION AND MOUNTING REQUIREMENTS ••••••••••••
MOUNTING ORIENTATIONS .....................................
3.5.1 Vertical Orientation Mounting
............................
3. 5.2 Horizontal Orientation Mounting
DRIVE CABLING
UNIT SELECTION
................................................
..............................................
INSTALLATION PROCEDURE/INITIAL CHECKOUT AND STARTUP
PROCEDURE ....................................................
PAGE
iii
iii
1-1
1-1
1-1
1-1
1-1
1-2
2-1
2-1
2-1
3-1
3-1
3-1
3-2
3-4
3-4
3-5
3-7
3-9
3-12
iv
77653532-C
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PREFACE
This Manual provides the information needed to install and operate the CDC Model
9410 FINCH™ Disk Drive (BJ9A1-A) and is intended to serve customer engineers
and operators.
The total content of the Manual is compri~ed of three sections, each having a
unique publication number, and is contained in one volume. The manual's publica-
tion number, (77653532) along with the unit series code number, should be used
when making reference to the FINCH Disk Drive Installation/Operation Manual.
The following table identifies the content of this manual:
SECTION NUMBER TITLE
1
2
3
EMI NOTICE
General Description
Operation
Installation and Checkout
PUBLICATION NO.
77653596
77653597
77653598
NOTICE: This equipment has been designed as a: component to high standards
of design and construction. The product, however, must depend on receiving
adequate power and environment from its host equipment in order to obtain
optimum operation and to comply with applicable industry and governmental
regulations. Special attention must be given by the host manufacturers in the
areas of safety, power distribution, grounding, shielding, audible noise control,
and temperature regulation of the device to insure specified performance and
compliance with all applicable regulations. This equipment is a component sup-
plied without its final enclosure and therefore is not subject to standards imposed
by FCC Rules for Electro-Magnetic Interferance (EMI). Federal Docket 20780/FCC
80-148 Part 15.
77653532-C .
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1.2.4
MAJOR COMPONENTS
(~he major components of the FINCH are shown in Figure 1-I.
CAUTION
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1-2
NEVER disassemble the FINCH. This exploded view is for
intormation
only. Servicing items in the upper sealed environ-
mental enclosure (heads, media, actuator, etc.) requires special
facilities. Only the printed-circuit boards, brake and motor
external to the sealed area can be replaced without special
facilities.
READ/WRITE
PWA
ABSOLUTE
RECIRCULATION
FILTER
ENY I ROIIMENTAL
ENCLOSURE
ROTARY VOICE COIL, BEARING
BLOCK, AND ROTARY ARM
(ACTUATOR ASSEMBLY)
FRONT
HtAD ASSEMBLI ES
MAIN DECK
READ TIMING
ROTARY ARM
SHIPPING LOCK
OBSERVATION
WINDOW
'--i'---- ENVIRONMENTAL
COIto1AND CABLE
REAR
ENCLOSURE
GASKET
6-32 UNC 2B
(OPTIONAL SYSTEM
GROUND PO I NT )
DATA CABLE
FIGURE 1-1. FINCH MAJOR COMPONENTS
77653596-B
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GENERAL DESCRIPTION
1
1.1
INTRODUCTION
The CDC 9410 FINCHlMDisk Drive is a small, low-cost, medium-performance,
random-access rotating-disk, mass-memory device designed to record and
recover data on up to two rigid eight-inch non-.removeable fixed disk media.
The FINCH uses low-mass flying read/write heads attached to a precisely con-
trolled rotary positioner. It has an unformatted data storage capacity of 8,24 or
32 megabytes, depending upon configuration.
1.2
1.2.1
GENERAL DESCRIPTION
STANDARD FEATURES
The following are standard features of the Model 9410 FINCH Disk Drive:
• Full dat~ recovery circuitry
• Sealed disk. head, and actuator chamber
• No preventive maintenance required
• LSI circuitry for high reliability
• Low audible noise for office environments
• Vertical (side) or horizontal (bottom) mounting
• Low power consumption
• Rotary voice-coil actuator
• Terminators
1.2.2
OPTIONAL FEATURES
The following optional features (factory-installed only) are available for the
FINCH: .
• 8,24 or 32 megabytes rigid fixed-disk data storage capacity
1.2.3
ACCESSORIES
The following accessories are available for the FINCH and must be ordered and
shipped separately:
• Shock mounts, horizontal and vertical.
• Front panel
• Power supply - includes five-foot power cable
• Hardware Maintenance Manual, 77711000.
• Application
Note, Diagnostics for Model 9410 FINCH Disk Drive, 77653374
• Application Note, Interfacing a 9406 Flexible Disk Drive with a 9410 FINCH
Disk Drive, 77653461
77653596-C
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OPERATION
2
2.1
INTRODUCTION
There is only one mechanical function required of the operator: to ensure that
power is applied. During routine computer operations t the operator should,
of course, note any malfunctions or problems and report them.
2.2 OPERATING AND PRELIMINARY DIAGNOSIS PROCEDURE
Due to the sophisticated design and special equipment required to repair the
FINCH, most repairs may only be effected at a properly equipped and staffed
depot service and repair facility. These repair facilities will be capable of
performing all warranty and routine repair activities.
Because there are no lamps for error or fault indication and no operator / drive
interaction is required, operating systems must contain sufficient error report-
ing information to allow the operator to make preliminary diagnosis of problems.
In other words, software must adequately inform the operator if any technical
difficulties arise. In multi-unit installations, logical and physical identification
are necessary for the oerator to identify a defective unit.
2.2.1
OPERATING INSTRUCTIONS
1.
2.
3.
4.
The following conditions must be met to initiate operation of the disk drive.
a. The DC power cable from the power supply must be connected.
b. Rotary-arm shipping lock must be in operating position.
The operating temperature of the drive is 50
0
to 1040 F (100 to 40
0
C) with
a maximum temperature change of 18
0 F (100
C) per hours.
Additional information on the drive can be found in the Hardware Installation /
Operation Manual 77653532.
In case of a malfunction the unit is to be serviced only by trained personnel.
77653597-B
2-1/2-2

3.3 OPERATING ENVIRONMENT
( The envoronmental conditions required for optimum performance of the disk drive
are, in general, the same as those in an office environment with minimum or no
environmental control. These conditions are:
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50
0
to 1040 F (100 to 40
0
C)
20% to 80%
Temperature
Humidity
Altitude
-983 to +6,562 feet (-300 to +2,000 meters)
The room temperature should not change more thant 180 F (100 C) per hour.
Relative humidity should be kept between" 20% and 80% . Avoid high relative
humidity as much as possible since it can cause condensation in the drive. Very
low relative humidity should also be avoided because it can lead to particle
attraction and accumulation by static electricity.
3.4 SPACE ALLOCATION AND MOUNTING REQUIREMENTS
Figure 3-2 shows overall dimensions of the drive for determining space allocation
and mounting requirements.
3-2
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DIMENSION
INCHES
A 4.62
.0.02
8
0.80 '0.02
C 8.00 '0.04
0 4.62
to.03
E 2.49
to.02
F 0.50 HOMI HAL .
G 0.06
_INAL
H
8.56 'D.02
I
7.30.0.06
J 0.25 '0.02
K 14.00
.0.06
L 11.65
.0.04
M 2.05
to.03
N 0.63
.0.02
&. OPTIONAL FRONT PANEL
8-32 lIftC 28 (FOR SHOCK I«lUNTING)
0.40 DEEP
4 PLACES
K
BOTTOM VIEW
MILLIMETERS
117.35.0.51
20.32 .0.51
203.2 >1.02
117.35 to. 76
63.25 .0.51
12.70 NOMINAL
1.52 NOMINAL
217 .42 :to.51
125.42 :t1.52
6.3S :to. 51
355.6 .1.52
295.91 d.02
52.07 ±0.76
16.00
'0.51
&. NOMINAL SHOCKS OR SPACER PROTRUSION
·1
8-32 UNC 28
0.25 DEEP
4 PLACES
1/0 AND POWER
COIINECTORS
FIGURE 3-2.
MOUNTING DIMENSIONS
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77653598-A
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INSTALLATION AND CHECKOUT
3.1 INTRODUCTION
This section provides the information and procedures necessary to install anj4
check out the CDC Model 9410 FINCH Disk Drive. The FINCH is designed,
manufacture~, and tested with a "Plug-in and Play" installation philosophy.
Basically, this philosophy minimizes the requirements for a highly trained
person to integrate a FINCH into their system.
3.2 UMPACKING
3
Visually inspect the shipping container for any obvious damage. During unpack-
ing, exercise care so that any tools being used do not cause damage to the unit.
As the drive is unpacked, inspect it for possible shipping damage. All claims
of this type should be filed promptly with the transporter involved. If a claim
is filed for damages, save the original packing materials.
(~c:)
CAUTION
Do not disengage the rotary-arm shipping lock
illustrated in Figure 1-1. Figure 3-1 shows the
rotary arm shipping lock in the locked and operating
positions. To prevent damage to the read/write
heads or the disk itself, move the rotary-arm ship-
ping lock to the operating position only after in-
stallation has been completed.
ROTARY ARM
LOCKING PIN
LOCKED
OPERATING
ROTARY ARM
SHIPPING LOCK
FIGURE 3-1. ROTARY ARM SHIPPING LOCK POSITION
... ;~
After the drive is unpacked, inspect the drive for any visual internaJ damage
(circuit boards, actuator assembly, and read /write heads). Compare all parts 'Cr", __ ,',','..'
listed on the shipping bill with the received equipment. Discrepancies or
damage should be reported to the Sales Representative. Save the
packing materials; they can be used for reshipment.
77653598-C 3-1

3.5 MOUNTING ORIENTATIONS
CAUTION
The drive should never be shipped or moved
without
the rotary-arm shipping lock locked to
prevent damage to the disk and/or heads.
There are only two mounting orientations: disks in a horizontal plane and disks in a
vertical plane. In either the horizontal or vertical mounting, the uppermost casting
surface should be in a level position or drive performance may be affected.
3.5.1
VERTICAL ORIENTATION MOUNTING
In the vertical orientation, the drive must be mounted so that the heads are above
the spindle as shown in Figure 3-4 and 3-5. This is to ensure that the read/write
heads will return to the head landing area when power is removed.
Shock mounting in a vertical orientation is accomplished through the use of an
optional plate and shock mounts. This plate is mounted to the side of the drive
and the shock mounts are attached to the plate and to the cabinet. This configuration
and mounting
dimensions are shown in Figure 3-5.
Two tapped holes are provided on each side of the drive for securing the drive to
the enclosure (cabinet). The drive may be bolted to an overhead member in a
(uspended mount and/or bolted from below ina supportive mount (Figure 3-3).
Jcrews with 8-32 threads and sufficient length to allow several threads of engage-
ment in the casting after passing through the cabinet mounting member should be
used.
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3-4
77653598-A

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Two mounting configurations are possible: either side-by-side in the upright
horizontal position or in the vertical position with the nameplate to the top. 0
Figure 3-3 shows these two mounting configurations. Detailed drive orientation
information is contained in the Subsection 3.6, Drive Cabling.
The FINCH is designed for multiple unit installation in a standard 19-inch
rack. Since the FINCH is a fixed. drive, slides are not provided, but tapped
holes are placed at various locations on the base casting for mounting in
the enclosure. A maximum of two units can be mounted adjacent to each other
hOrizontally,or three units if using the vertical mounting configuration.
THE FINCH has an internal blower for cooling the Main PWA, Motor Control PWA.
and mechanical components. This blower pulls air in through the hole in the
Main PWA. For this reason, air flow to this blower shall not be restricted. If
the drive is mounted to 'a solid mounting plate on the PWA side of the drive (hori-
zontal mounting), the gap G (Figure 3-2) is the minimal allowable space for air
flow. It is preferred that this gap be larger and/or the mounting plate have
openings fo~ air flow to the blower.
A sometimes overlooked consideration when mounting several drives in the
same enclosure is heat dissipation. Because power supplies, for example, are
typically heavy and produce large amounts of heat, they are usually mounted
in the bottom of an enclosure. This heat rises to the top of the cabinet or en-
closure and the temperature can increase drastically. Cabinet ventilation,
either by natural convection or forced cooling, must be provided to keep the
internal air temperature around the disk drive within the limits specified by
the manufacturer.
C
···\·
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IWIEPlATE
PIIA
PIIA
CABLE
CONNECTORS
FIGURE 3-3. MOUNTING CONFIGURATIONS
77653598-A 3-3
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3-6
IWIE PLATE
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REAR
CABINETRY
NUT OR SCREW
..... ________ 6 __________ ...,
,---- ...
~ .. I
St«lCK 11)00
DR SPACER
(4 PLACES)
DIMENSION
A
B
C
D
E
F
G
H
1
J
K
INCHES
14.00 REF
8.56 REF
0.12
0'.50
0.50
0.50
12.70
14.30
4.62
REF
0.25
4.00
MILLIMETERS
355.60 REF
217.42 REF
3.05
12.70
12.70
12.70
322.58
363.22
117.35
REF
6.35
101.60
FIGURE 3-5. VERTICAL SHOCK MOUNTING
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FRONT
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77653598-A

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3.5.2
HORIZONTAL ORIENTATION MOUNTING
As shown in Figure 3-2, four 8-32 tapped holes are provided in the base of the
main deck casting to facilitiate mounting in the horizontal position.
The FINCH may be mounted with optional shock mounts or spacers directly to the
rack using 8-32 thread screws. If shock mounts or spacers are used, screw the
four mounts into their respective threaded holes as shown in Figure 3-6. Place
the drive in the rack or cabinet and secure it with screws with sufficient length
to ensure adequate thread engagement.
IWIEPLATE
o
FRONT
M ~~~AC~~T "'lIlTING PLATE
I (4 PLACES) (OPTIONAL)!
WI'\\\W' ~:aiN~~~' \\\\ \\\\\\ \\\\\ \\ \\ \\\\\\\\\\\\\VI'mi
a.....-. 8.32 SCREW II!
e- (4 PLACES) e
FIGURE 3-4.
VERTICAL MOUNTING
'77653598-A 3-5

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FIGURE 3-7. POWER AND SIGNAL CABLE ORIENTATION
{
3-8
77653598-C

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I I
.....
I I
UP
f CABINETRY
FRONT
~ SHOCK IIlUNT OR
SPACER (4, PLACES)
~ NUT OR SCREW
FIGURE 3-6. HORIZONTAL MOUNTING
3.6 DRIVE CABLING
The FINCH's digital interface is intended to utilize a single controller design
capable of controlling both a FINCH and a flexible disk drive (FDD).
The required connections to the drive are power and signal cables. All input I
output cables exit at -the rear of the disk drive. The signal cables consist of a
command
interface and a data interface. Figure 3-7 shows the orientation of
the command, DC power and data connectors ..
77653598-B
3-7
.. "'.... L
-
C'
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IIlST aJIITRDU.£R
DATA
aJItWfD
DATA
CIMWtD
DATA
aJlMllNO
DATA
alIIIANO
IW
..!.
...r.'
W
...r.J ..!. ...r.J
FINCH FINCH FINCH FINCH
VIEW A
NOST aJIITROLLER
J
DATA COi't!AND DATA DATA
DATA
h
COItWIO
C,"",NO C,"",NO
'C.(
I-J. W H W H
.2.1
IIlJ 1l!J
112..1
FINCH
FINCH FINCH FINCH
VIEW B
HOST CONTROLLER
C,"",NO
DATA DATA
r.
I-
C_O
~ COItWID
~
t:'a
")'i
H
1l!..J 1l!..J
FDD
FDD FINCH FINCH
VIEW C
NOTE I: T INDICATES TERMINATOR RESISTOR PACK. FINCH DATA CABLES ARE
PERMANEHTL Y TERMINATED.
IIOTE 2: A FINCH IllST BE THE LAST DRIVE IN THE DAISY ClWN.
ll.
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llOTE 3: TOTAL CCItIAND CABLE LENGTH
MT NOT EXCEED 20 FEET
(6.10 m). EACH DATA CABLE
LENGTH MUST NOT EXCEED 20
FEET (6.10.. ).
I
NOTE 3: TOTAL COItWIO CABLE LENGTH
MUST HOT EXCEED 20 FEET
(6.10 R1). EACH DATA CABLE
LENGTH IllST HOT EXCEED 20
FEET (6.IOm).
I
NoTE 3: TOTAL COItWID CABLE LENGTH
MUST NOT EXCEED 20 FEET
(6.IOm). EACH DATA CABLE
LENGTH MUST NOT EXCEED 20
FEET (6.1001).
FIGURE 3.8 . INTERFACE CABLING OPTIONS
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3-10 77653598-B

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Figure 3-8 shows the intercabling and terminator placement for the various drive
connection arrangements. Shown are radial-cabled and daisy-chained system
configurations. A single drive would be connected as shown for the radial
configuration.
Terminator resistor packs are included in each drive. The terminators consist
of a DIP resistor module which is plugged into a DIP socket in each drive. An
. equivalent terminator must be provided in the controller on each input signal
line from the FINCH to the controller.
View A of Figure 3-8 shows each drive interfaced to its own Command cable,
Which, in turn, allows interfacing of more than four drives and a variety of
system operational techniques. Each drive has its Data cable and Command cable
radially connected to the host controller. The length of .each individual cable
must not exceed 20 feet (6.1 meters). Terminator resistors must be installed
in the host controller for each Data cable and for each Command cable. If
instead of all FINCH's there are FDD's plus FINCH's, then a terminator resistor
pack also would be installed in each FDD for its Data ICommand cable.
A daisy-chain configuration incorporates parallel interfacing of the disk drives
on a common Command cable. A maximum of four drives may be daisy-chained on
the Command cable. Only the drive which is selected by the host system has
its control and data signals enabled through this common interface. View B of
Figure 3-8 consists only of FINCH's. Terminator resistors are required in the
host controller for each Data cable. Only the last FINCH in the daisy chain re-
quires a terminator resistor pack for the Command cable; the others must be /\
removed. The total combined Command cable length (from the controller to the
first drive, to the second and subsequent drives) must not be more than 20
feet (6.1 meters).
View C of Figure 3-8 consists of a common controller for both FINCH's and FDD's.
A maximum of four drives (any combination of FDD's plus FINCH's) may be daisy-
chained on the Command cable. Terminator resistors are required in the control-
ler and in the last drive in the daisy chain for the Command cable. Terminator
resistor packs for the Command cable of other drives would be removed. A term-
inator resistor is required in the controller for each Data cable. The total
combined Command cable length (from the controller to the first drive, to the
second and subsequent drives) must not be more than 20 feet (6.1 meters). A
FINCH
must be the last drive in the daisy chain to ensure FINCH-unique lines
are terminated.
3.7 UNIT SELECTION
Logical unit designation is accomplished at the time of installation by selecting the
appropriate jumper plug located on the baseboard assembly.
Unit selection is performed by installing a keyed jumper plug, onto the Unit Select
header (J3). The plug can be installed in one of four possible orientations and
will display the unit selected number to the rear of the drive (see Figure 3-9).
77653598-B
3-9