Control Data Corporation Finch 9410-4 User manual

@
5
CONTROL
DATA
77715816
CORPORATION
CONTROL DATA®
™
FINCH DISK DRIVE
MODEL 9410-4
GENERAL DESCRIPTION
OPERATION
INSTALLATION
AND
CHECKOUT
@ @ MAGNETIC PERIPHERALS.INC.
a Control Data Company
VOLUME 1
HARDWARE
INSTALLATION/OPERATION
MANUAL

@5
CONTROL
DATA
77715816
CORPORATION
CONTROL DATA®
™
FINCH DISK DRIVE
MODEL 9410-4
GENERAL
DESCRIPTION
OPERATION
INSTALLATION
AND
CHECKOUT
@ @ MAGNETIC PERIPHERALS.INC.
a Control Data Company
VOLUME 1
HARDWARE
INSTALLATION/OPERATION
MANUAL

9410-4 FINCH Disk Drive
A14-ES8-F
INSTALLATION/OPERATION
MANUAIL
VOLUME
1
REVISION
RECORD
R
MANUAL/SECTION
REVISION
STATUS
CHANGE
E
DATE
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AUTHORITE
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COPYRIGHT () 1982
MAGNETIC PERIPHERALS [NC.
Printed in the United States of America
All Rights Reserved
i
Address all comments concerning this
publication to the distributor or use
the enclosed user comment sheet located
in the back of this publication.
77715816-A

PREFACE
e e e e e e Py R R e Y e I R TR T T
This Manual provides the information needed to install and operate the CDC
Model 9410-4 FINCH ™Disk Drive (BJ9A2-A) and is intended to serve customer
engineers and operators.
The total content of the Manual is comprised of three sections, each having
a unique publication number, and is contained in one volume. The manual's
publication number, (77715816) 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 PUBLICATION NO.
1 General Description 77715817
2 Operation 77715818
3 Installation and Checkout 77715819
EMI NOTICE
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 Interference (EMI). Federal Docket 20780/FCC
80-148 Part 15.
77715816 -A iii

TABLE OF CONTENTS
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SECTION PAGE
PREFACE
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GENERAL DESCRIPTION
1.1
INTRODUCTION
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3.3
OPERATING
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REQUIREMENTS
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iv
77715816-A

GENERAL DESCRIPTION 1
e s e s e =T
1.1 INTRODUCTION
The CDC 9410-4 FINCH™Disk Drive, hereinafter called FINCH, 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-removable fixed disk media. The FINCH uses low-mass flying read/write
heads attached to a precisely controlled rotary positioner. It has an unfor-
matted data storage capacity of 8.24, 32 or 40 megabytes, depending upon
configuration.
1.2 GENERAL DESCRIPTION
1,2.1 STANDARD FEATURES
The following are standard features of the FINCH Disk Drive:
e Full data recovery circuitry
® Sealed disk, head, and actuator chamber
e No preventive maintenance required
e LSI circuitry for high re]iabilit’y
e Low audible noise for office environments
e Vertical (side) or horizontal (bottom) mounting
e Low power consumption
e Rotary voice-coil actuator
e Terminators
1.2.2 OPTIONAL CAPACITIES
The
following
optional
capacities
(factory-installed
only)
are
available
for
the
FINCH:
e 8, 24, 32 or 40 megabytes rigid fixed-disk data storage capacity
77715817-A
1-1

OPERATION 2
e o nesEe— e e e e e e e e
2.1 INTRODUCTION
There is only one mechanical function required of the operator: to ensure that
power is applied. During routine computer operations, 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 installation, logical and physical identifications
are necessary for the operator to identify a defective unit.
2,2.1 OPERATING INSTRUCTIONS
1. 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.
2. The operating temperature of the drive is 50° to 104° F (10° to 40° C) with
a maximum temperature change of 18° F (10° C) per hours.
3. Additional information on the drive can be found in the Product Specification,
77653332.
4. In case of a malfunction the unit is to be serviced only by trained personnel.
77715818-A
2-1/2-2

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INSTALLATION AND CHECKOUT 3
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3.1 INTRODUCTION
This section provides the information and procedures necessary to install
and check out the FINCH Disk Drive. The FINCH is designed, manufactured,
and tested with a "Plug-in and Play" installation philosophy. Basically, this
philosophy minimizes the requirements for a highly trained person to inte-
grate a FINCH into their system.
3.2 UNPACKING
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.
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 installation has
been completed.
ROTARY ARM N
eI N LOCKED POSITIO
|— OPERATING POSITION
ROTARY ARM
SHIPPING LOCK
| — —L[=,UJ
FIGURE 3-1, ROTARY ARM SHIPPING LOCK POSITION
Goaoe
(Cstmee 3
77715819-A 3-1

After the drive is unpacked, inspect the drive for any visual internal damage
(circuit boards, actuator assembly, and read/write heads). Compare all parts
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.
3.3 OPERATING ENVIRONMENT
The environmental 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:
Temperature 50° to 104° F (10° to 40° C)
Humidity 20% to 80%
Altitude -983 to +6,562 feet (-300 to +2,000 meters)
The room temperature should not change more than 18° F (10° 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
par-
ticle 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 alloca-
tion and mounting requirements.
3-2
77715819-A

8-32 UNC 2B
" 0.25 DEEP
6 PLACES
"1 |“ 0.5 in MAX. CABLE EXTENSION
A -+ -
+
— —
8-32 UNC 2B (FOR SHOCK MOUNTING
0.40 DEEP QR SPACER)
4 PLACES SHOCK MOUNTING OR SPACER
I K (OPTIONAL)
~ 4 PLACES
-
®
i M
BOTTOM VIEW
=
ITOTTMOoOOmE
O
=Z=Zrr
X
INCHES MILLIMETERS
4.62 +0.02 117.35 #0.51
0.80 £0.02 20,32 £0.51
8.00 +0.04 203.2 +1.02
4.62 +0.03 117.35 +0.76
2.49 0,02 63.25 £0.51
0.50 NOMINAL 12.70 NOMINAL
0.06 NOMINAL 1.52 NOMINAL
8.56 20.02 217.42 +0.51
7.30 +0.06 125.42 1,52
14.00 *0.06 355,6 #1.52
11.65 +0.04 295,91 1.02
2.05 +0.03 52,07 #0.76
0.63 £0.02 16.00 #0.51
12.90 +0.02 327.66 +0.51
1.55 +0.02 39.37 #0.51
77715819-A
NOMINAL SHOCK OR SPACER PROTRUSION
I/0 AND POWER
CONNECTORS
FIGURE 3-2., MOUNTING DIMENSIONS
3-3

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.
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
(horizontal 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 for 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 manu-
facturer.
3-4
'
77715819-A

- caBLE
CONNECTORS
" ]
A = |
'\\
NAMEPLATE
——— —
Fr24%a_)
PUWA
FIGURE 3-3. MOUNTING CONFIGURATIONS
77715819-A
3-5

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 Figures 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 shock mount plate. The drive is mounted to the shock mount plate and
the shock mount plate to the cabinet. This configuration and mounting dimen-
sions are shown in Figures 3-4 and 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 suspended mount and/or bolted from below in a supportive mount (Figure 3-3).
Screws 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.
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.
3-6 77715819-A

TOP NAMEPLATE
N\
FRONT
|
'( — =—_ J{}s
T — =
~+——MOUNTING PLATE (OPTIONAL)
wjm\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\wim—wm
&
b
=5
S [0y
FIGURE 3-4., VERTICAL MOUNTING
77715819-A
3-7

8-32 SCREW
o~ (4 PLACES)
DIMENSION INCHES MILLIMETERS
A 14.56 369.82
1l B 9.50 241.30
€ 13.50 342,90
D 4.28 108.71
£ 3.10 77.70
F 0.50 12.70
i G 0.56 14.22
( )
o
jt———— D
(CFF239 )
FIGURE 3-5, VERTICAL SHOCK MOUNTING
77715819-A
3-8

up
FRONT
[
SHOCK MOUNT OR
SPACER (4 PLACES)
© CABINETRY g_\ )
T
NUT
OR
SCREW
~ -
FIGURE 3-6., HORIZONTAL MOUNTING
—r——
b
baa
Py
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/
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.
77715819-A
3-9