Wang 2272 User manual

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:.WA·NG
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Digital Drum Plotter
Model: 2272
Customer Engineering
Product Maintenance Manual
3313
741-0455

3313
PR ff ACE
The purpose of this manual is to provide the Wang-trained Customer
Engineer <CE> with instructions to operate, troubleshoot and repair the
Digital Drum Plotter.
Information Service Notice no. 120 is located at the back of the manual .
Second Edition <Aug~984l
This reprint edition is the converted number for and obsoletes docum~nt
number 729-0455. It also incorporates Immediate Service Notice <ISN> P/N
729-0457. This edition of the manual may be used only for the purpose stated
in the Preface. Updates and/or changes to this document will be published as
Publications Update Bulletins <PUB's> or subsequent editions.
This document is the property of Wang Laboratories, Inc. All information
contained herein is considered company proprietary, and its use is restricted
solely to assisting the Wang-trained CE in servicing this Wang product.
Reproduction of all or any part of this document is prohibited without the
prior consent of Wang Laboratories, Inc.
©copyright WANG Labs., Inc.
1976, 1984
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TABLE OF CONTENTS
SECTION 1 INTRODUCTION
1.1 SCOPE
1. 2 DESCRIPTION
1.3 MODEL 2272 TECHNICAL CHARACTERISTICS
SECTION 2 INSTALLATION
2.1 SITE CONSIDERATION
2.2 UNPACKING PROCEDURE
2.3 UNIT INSPECTION PROCEDURE
2.4 OPERATOR CONTROLS AND INDICATORS
2.4.1 CONTROL PANEL
2.4.2 REAR OF UNIT
2.4.3 PLOTTER DRUM
2.5 DYNAMIC CHECKOUT
SECTION 3 OPERATION
3.1
CONTROL PANEL
3.1.1
RUN LAMP
3.1.2
PEN Sh.£TCH
3.1.3
HOME SWITCH
3.1.4
CLEAR SWITCH
3.1.5
PLOT AXIS SELECTION
3.1.6
SET HOME/LIMITS MODE
SWITCH
3.1. 7
SLEW MODE SWITCH
3.1.8
PLOT MODE SWITCH
3.2
OPERATION OF 2272 VIA 2200
CPU
3.2.1
PLOT STATEMENT
3.2.2
2272 DIAGNOSTIC
3.2.3
SPECIAL PLOT CODES
3.2.3.1
Pen Selection HEX(El), HEX(E2),
HEX(E3)
3.2.3.2
Set Home HEX(E4)
3.2.3.3
Power On/Set Home HEX(E5)
3.2.3.4
Binary Plot Vector (EO), Short
Binary
Plot Vector (E6)
3.2.3.5
Hex Code For Pen Up (HEX(OE)), Pen
Down
{HEX(OF)), Reset (HEX(FA))
3.2.3.6
Slewing
3.2.3.7
Selection of
Left and Right
Limits, Home
SECTION 4 THEORY OF OPERATION
(INFORMATION TO FOLLOW)
1-1
1-1
1-4
2-1
2-1
2-1
2-2
2-2
2-4
2-4
2-4
3-1
3-1
3-1
3-1
3-1
3-2
3-2
3-4
3-5
3-5
3-5
3-6
3-6
3-6
3-7
3-8
3-9
3-10
3-14
3-14

SECTION 5 ADJUSTMENT, REt-OVAL AND REPLACEMENT PROCEDURES
5.1 IN'i'RODUCTION
5. 2 ELECTRICAL ADJUSTMENTS
5. 3 MECHANICAL AND ELECTROMECHANICAL ADJUSTMENT, REMOVAL/
REPLACEMENT INDEX
5.3.1 ADJUSTMENT GUIDE
5.3.2 PAPER GUIDE
5.3.3 PEN AXIS INCREMENT ADJUSTMENT
5.3.4 PAPER DRIVE ASSEMBLY
5.3.5 PAPER SPROCKET AND SPROCKET C.OVER ASSEMBLIES
5.3.6 PHOTOCELL/HOME POSITION ALIGNMENT
5. 3. 7 CARRIAGE ASSEMBLY
5.3.8 CARRIAGE DRIVE ASSEMBLY
5.3.9 CARRIAGE ARM ASSEMBLY
5.3.10 PEN/SOLENOID ASSEMBLY
5.3.11 ELECTRICAL CHASSIS REMOVAL/REPLACEMENT
5.3.12 SIDE COVER REMOVAL/REPLACEMENT
SECTION 6 MAINTENANCE
6.1
INTRODUCTION
6.2
DIAGNOSTIC
6.2.1 DIAGNOSTIC HOME POSITION SETUP
6.2.2
OUTPUT SYSTEM DIAGNOSTIC
6.2.3
2272 DIAGNOSTIC
6.3
PREVENTIVE MAINTENANCE
6.3.1 VISUAL CliECKS
6.3.2 ADJUSTMENTS
6.4 TROUBLESHOOTING
SECTION 7 ELECTRICAL SCHEMATICS
7.1 INTRODUCTION
7.2 LIST OF ELECTRICAL SCHEMATICS
7.3 SIGNAL RUN LIST
SECTION 8 MECHANICAL ASSEMBLY DRAWINGS
8.1 INTROCUTION
APPENDIX A ASCII CHART OF PLOTTER CONTROL CODES
APPENDIX B PLOTTER MNEMONICS
5-1
5-1
5-2
5-3
5-4
5-5
5-7
5-9
5-10
5-13
5-15
5-17
5-19
5-21
5-21
6-1
6-1
6-1
6-2
6-2
6-2
6-2
6-2
6-2
7-1
7-1
7-1
8-1
A-1
B-1
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1.1 SCOPE
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SECTION 1
INTRODUCTION
This manual describes the Model 51/53/51M/53M Digital Drum Plotter
manufactured by Wang Laboratories, Inc.
General i11formation, detailed theory of operation and maintenance
routines are included to enable Customer Engineering personnel to ma:l.n-
tain the plotter.
Tite manual is arranged in the following manner:
SECTION 1 - INTRODUCTION: Provides the reader with the scope of
this manual and a general description of the plotter.
SECTION 2 - INSTALLATION: Contains unpacking and installation
instructions for the plotter.
SECTION 3 - OPERATION: Describes the function of all operator
controls and indicators including the basic 2200 CPU
operations for outputting data.
SECTION 4 - THEORY OF OPERATION: Contains descriptions of the
mechanical assemblies and the printed ci~cuit board
electronics.
SECTION 5 - ADJUSTMENTS, REMOVAL AND REPLACEMENT PROCEDURES.
SECTION 6 - MAINTENANCE: Includes di.agnostics, preventive main-
tenance and troubleshooting tables.
SECTION 7 - ELECTRICAL SCHEMATICS: Contains a complete set of
schematics, wiring and interconnection diagrams.
SECTION 8 - MECHANICAL ASSEMBLY DRAWINGS: Allows the user to iden-
tify any part of the plotter.
1.2 DESCRIPTION (~EE FIGURE 1-1)
'lbe Digital Drum Plotter is available in the following configurations:
1-1

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MODEL
DESCRIPTION
MARKETED AS
51
SINGLE PEN
ENGLISH
UNITS
2272-1
53
TRIPLE PEN
ENGLISH UNITS
2272-2
SlM
SINGLE
PEN
METRIC UNITS
2272-lM
53M TRIPLE PEN
METRIC UNITS
2272-2M
Tile Digital Drum Plotter provides point, line and alphanumeric
plotting capacity to any ?>bdel 2200 System that has plot capability .
'nle drum plotter is conL,olled by an 8080 microprocessor, which
includes a 512 byte RAM memory that is used to buffer plot information
sent from the Model 2200 CPU. Vectors take 5 bytes; alphanumeric
characters and plot control characters are stored as is.
The manual control panel on the Digital Drum Plotter provides a
number of convenient control functions which include: manual slewing
of the pen and paper, four quadrant axis rotation selection, conveniently
setable HOME position (X = O, Y = 0 origin) and pen and paper movement
limits to any position on the plotting surface, plot interrupt and
automatic return facility, and pen up override •
Plotting is controlled with the 2200 BASIC language PLOT statement.
The plotter has an input buffer which allows a number of plot vectors
and alphan\DD.eric plotting data to be stored prior to plotting, thus
providing overlap between plotting and CPU processing. The Model 2272
Plotter has built-in alphanumeric character generation capability
which plots a standard 64 character ASCII set in 15 selectable character
sizes. A zero reference parameter {HOME) permits quick resetting of
the pen and paper position to any manually set origin, either under
nanual or program control. Additional plot codes are available to
allow efficient plotting of prestored plot information, special·
lettering and symbols via binary plot vectors and to perform plot
initialization functions under program control.
Manual controls permit setting the home position coordinate axis
to one of four orientations acconunodating plots of many shapes. Manual
controls also permH slewing the pen position as desired, placing the
pen in the 'up' position and clearing the plotter buffer.
l-3

Both English and metric versions plot with interchangeable pens;
the Model 2271-1 (-lM) has a single pen assembly anri the Model 2272-2
(-2M) has an optional three pen r.arria~L' assembly. The 16 inch (40. 6
cm) plotting axis is covered by a cable driven pen assembly; the 160
inch (406 cm) axis is operated by the pinfeed paper mechanism. The
English version drum plotter supports approximately 3200 i,,,..remPnts
of pen movement in the left-right direction (16 inches x 200 steps/
inch) and 16383 increments of paper movement in both the forward and
reverse direction if HOME position is not reset; there is no restriction
on paper movement if HOME position is reset. The metric plotter has
approximately 4064 increments in the left-right direction and 16383
increments of paper in the forward-reverse direction if HOME position
is not reset.
The standard plotter (metric or English) is 100% compatible with
the 2212 protocol except that 64 ASCII plotting characters are supported
instead of 48. Options will include a three pen carriage assembly,
additional microcode (PROM) chips to support expanded built-in plotting
functions and an automatic paper roll feed handler which will 100unt on
the rear of the plotter.
The plotter connector is designed to connect to the 2221W 1/0
controller board in the 2200 chassis. The plotter drum supports 18
inch (45.72) wide platen fed paper [17 1/2" (44.45 cm) pin to pin]
which rolls forward and backward over the drum.
1.3 MODEL 2272 TECHNICAL CHARACTERISTICS
Plotting Rate:
(English)
Plotting Rate:
(Metric)
Plotting Area:
1.5 inches/sec to 4.5 inches/sec
vertical or horizontal
1.5 inches/sec to 6.4 inches/sec
diagonal
3 cm/sec to 9 cm/sec vertical or
horizontal
3 cm/sec to 12.7 cm/sec diagonal
16 inches (40.6 cm) wide by unlimited
length
1-4
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AlphantDDeric Plotting:
Programmable Control Codes:
Plotting Increment:
Plotting Accuracy:
Paper Dimensions:
Pen:
Manual Plotter Controls
and Indicators:
Dimensions:
Operating Temperature:
Humidity:
64 UASCII Characters, 15 Selectable
Character Sizes and Variable inter-
character spacing
See Append ix A
.005 inch per step
.01 cm per step
.01 inch + .1% per inch of plotting distance
cm + .1% per cm of plotting distance
Continuous perforated roll paper (18" edge
to edge, 400 ft)
Ball point, fiber tip, technical ~nk pens.
On -Off switch
Mode Selection -3 pushbuttons (PLOT,
SLEW, SET HOME/LIMITS)
Manual Slew Control - 5 pushbuttons
(+, ~. +, +, HOME)
Axis Rotation Selection -4 pushbuttons
Pen Up Override -1 pushbutton
Clear -1 pushbutton
Run Indicator Light
Height:
Width:
Depth:
10.2 inches (26 cm)
33 inches (84 cm)
14 inches (36 cm)
50° to 90°F" (10° to 32°C)
30 to 80% Relative, non-condensing
1-5

Power Source:
Weight (Approx.):
Storage Temperature:
Storage Humidity:
50/60 Hz ~ 1/2 cycle
115 or 230 VAC +10% 230 WATTS
Internal Selection (See Section 6)
90 lbs. (41 kg)
-40° to 130°F (-40 to 55°C)
0 to 90% Relative, non-condensing
1-6
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