NCR 5635
Spray Currency Dispenser
Service Manual
B006-6280-A000
April 2002
NCR — CONFIDENTIAL AND PROPRIETARY
Use pursuant to Company Instructions
The product described in this book is a licensed product of NCR Corporation.
It is the policy of NCR Corporation (NCR) to improve products as new technology, components,
software, and firmware become availabl e. NCR, t herefore, r eserves the right to ch ange spec ifications
without prior notice.
All features, functions, and operations described herein may n ot be marketed by NCR in all parts of
the world. In some instances, photogr aphs are of equipment prototy pes. Therefore, b efore using this
document, consult wi th your NCR representat ive or NCR office for information t hat is applicable an d
current.
To maintain the quality of our publications, we need your comments on the accuracy, clarity,
organization, and value of this book.
Address correspondence to:
NCR Financial Solutions Division Ltd
Information Solutions
Kingsway West
Dundee, Scotland
DD2 3XX
© 2002
By NCR Corporation
Dayton, Ohio U.S.A.
All Rights Reserved
NCR - CONFIDENTIAL AND PROPRIETARY
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Canadian Cl a ss A
Device Declaration
Federal Communications Commission (FCC) Radio Frequency Interference Statement
Note: This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipme nt is
operated in a commercial environment. Th is eq uipment
generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to
correct the interference at his own expense.
This digit al apparatus doe s not exceed the Class A limits for radio
noise emis sions from digital ap p aratus set out in the Radio
Interfe rence Regula tions of the Canadian Department of
Communications.
Le présent appareil numérique n’émet pas de bruits
radioélectriques dépassant les limites applicables aux appareils
numériques de la classe A prescrites dans le Réglement sur le
brouillage radioélectr ique édic té par le ministèr e des
Communications du Canada.
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NCR 5635 Spray Currency Dispenser Service Manual iii
Information to User
This equipment must be installed and used in strict accordance with
the manufacturer’s instructions. However, there is no guarantee
that interference to radio communications will not occur in a
particular commercial installation. If this equipment does cause
interference, which can be determined by turning th e eq ui pment off
and on, the user is e ncou raged to consult an NCR ser vi ce
representative immediately.
Caution
NCR Corporation is not resp onsible for any radio or televi sion
interference caused by unauthorised modifications of this
equipmen t or the substitution or attach me nt of connecti ng cables
and equipment other than those specified by NCR. Such
unauthori zed modif ica tion s, su bstit uti ons, or attac hme nts may void
the user’s authority to operate the equipment. The correction of
interference caused by such unauthorized modifications,
substitutions, or attachments wi ll be the responsibility of the u ser.
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iv NCR 5635 Spray Currency Dispenser Service Manual
Revision Record
Date Page Descriptio n of Chan g e
April
2002
All First issue of manual.
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5635 Spray Currency Dispenser Service Manual
v
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vi 5635 Spray Currency Dispenser Service Manual
Purpose
Audience
Organisation
About This Manual
Preface
Preface
This man ual conta ins the info r ma t i o n re qu ir e d t o mai nt ain
the 5635 Currency Dispenser. It includes a functional
description of the dispenser, adjustment procedures,
calibration procedures, internal cabling, connector pinouts,
strapping details, power requirements, and mechanical
instal la tio n in th e host.
This manual is intended for design engineers who will be
designing a host cabinet for the dispenser and for service
engineers who will be maintaining the dispenser.
The manual is organised into four chapters and one appendix
as follows:
Chapter 1 - Functional Description
Containers description, cassette identification, security levels,
specif ication currency media, path of notes t hrough
dispenser, arrangement of sensors, power up/reset
initialisation, and singularity detection.
Chapter 2 - Installation
How to mount the dispenser in a host.
Chapter 3 - Operating Instructions
How to load cassettes into the dispenser, and clear jams
Chapter 4 - Maintenance Instructions
Calibrating procedures, adjustment procedures, interpreting
level 0 di ag n ost ic s, pr e ve n t iv e m a in ten a n ce pro ce dures and
module replacement procedures.
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NCR 5635 Spray Currency Dispenser Service Manual
vii
About This Manual
Preface
Related Information Products
Appendix A - Specifications
Detail ed sp e cif ica t ions for the d isp e ns e r: e nvironm e nta l,
physical dimensions, media, weight, power supply, interface
and cablin g (EM C)
Other NCR publications relating to the 5635 currency
dispenser are:
z
NCR 5635 Spray Currency Dispenser - Owner’s Guide
A000). Aimed at the person who will be responsible for the day
to day running of the dispenser, this book describes the
replenishment tasks of loading currency cassettes and clearing
jams.
z
NCR 5635 Spray Currency Dispenser - Programmer’s Manual
(B006-6283-A000 ). This book contains details of the command
set, message protocol, and communications interfaces,
necessary to write an application to control the dispenser.
(B006-6279-
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viii NCR 5635 Spray Currency Dispenser Service Manual
Table of Contents
Contents
About This Manual
Purpose ...............................................................................................vii
Audience.............................................................................................vii
Organisation.......................................................................................vii
Relate d In f o rm a ti o n P ro ducts .. ....... .. ... .............. ... .. ............... .. ... ... viii
Chapter 1
Dispenser Functional Description
Introduction............................................................................................1-1
Currency Cont ainers.......... ....... .. ... ....... .. ... .............. ... .. ............... .. ... ....1-3
Currency Cas set te s ... .............. ... .. ............... .. ... ....... .. ... .............. ... .. .. 1-3
Purge Bin............................................................................................1-8
Pick Modules........................................................................................1-10
Currency Cassette Guides and Latch ..........................................1-11
Cassette Identity Sensors...............................................................1-11
Pick Module Keyplate.................................................................... 1-11
Pick Action.......................................................................................1-11
Pick Mechanism Operation...........................................................1-12
Pick Sensor.......................................................................................1-14
Cassette Low Sensor.......................................................................1-14
Pick Module Transport ..................................................................1-14
Presenter ...............................................................................................1-15
Dispenser Motor and Transport...................................................1-16
Main Timing Disk...........................................................................1-16
Linear Variable Displacement Transducer (LVDT)...................1-16
Divert Gate ......................................................................................1-17
Exit Sen s or ....... .. ........ .. ... .............. ... .. ............... .. .. ........ .. ... ..............1-17
Contro l Bo a rd.. ... .............. ... .. ....... ... .. ............... .. ... .............. ... .. ....... ... ..1-18
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NCR 5635 Spray Currency Dispenser Service Manual
ix
Table of Contents
Firmw a re D e sc riptio n ..... ... .. ........ .. .. ............... .. ... .............. ... .. ........ .. .. 1-20
Dispense Operation ............................................................................ 1-22
Chapter 2
Installation
Mount in g D i s p en s e r....... ... ....... ... .. ............... .. .. ............... .. ... ....... ... .. .... 2 - 1
Left Side Mounting Locations ........................................................ 2-1
Right Side Mounting Locations...................................................... 2-3
Power Requirements/Connections.................................................... 2-5
AC Power .......................................................................................... 2-5
DC Power .......................................................................................... 2-5
Power Connections .......................................................................... 2-6
Interf a ce Connec tio n... .............. ... .. ....... ... .. ............... .. ... .............. ... .. .... 2 - 7
Electr ica l Co nnect ions ....... .. ... .............. ... .. ............... .. .. ........ .. ... ...... 2-8
Electrical Characteristics of Interfaces........................................... 2-9
Chapter 3
Operating Instructions
Preparation of Cu rrenc y........... .. ... ....... ... .. ............... .. .. ............... .. .. 3-1
Empty in g th e Curren cy P u rge Bin ... .. ... ....... .. ... .............. ... .. ........ .. .. 3-10
Stand a rd Curren cy P u rge Bin ........ ... .. ............... .. ... ....... .. ... ......... 3-10
Latch Fast Currency Purge Bin .................................................... 3-11
Clearing Currency Dispenser Jams .................................................. 3-13
Chapter 4
Maintenance Instructions
Casset t e Ad justm e nts ........ .. ... .............. ... .. ....... ... .. ............... .. ... ........... 4- 2
Casset t e Ide ntific a ti o n Co de...... ... .............. ... .. ........ .. .. ............... .. .. 4-2
Currency Dim e ns i ons Adjus t me nt.......... .. ... .............. ... .. .............. 4-6
Currency Width Adjustment........................................................ 4-17
Matching Cassette Bodies And Lids............................................ 4-25
Note Low Sensing Adjustment .................................................... 4-25
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x NCR 5635 Spray Currency Dispenser Service Manual
Table of Contents
Currency Sing u la rity.. ........ .. .. ............... .. ... .............. ... .. ............... .. ... .. 4-27
Singula rity ....... ............... .. .. ........ .. ... .............. ... .. ............... .. .. .......... 4-27
Internal Compensation Factor ......................................................4-27
Condition of Currency...................................................................4-27
Calibrating the Dispenser..............................................................4-28
Establishing Singularity and Size.................................................4-29
Diagnostic Tests...................................................................................4-30
Start- Up Te s ts....... .. ... .............. ... .. ............... .. ... ....... .. ... .............. ... ..4-31
Automa t i c Te s t s .......... ... .. ....... ... .. ....... ... .. ............... .. ... .............. ... ..4-31
Manua l Te s ts ... .. ... .............. ... .. ........ .. .. ............... .. ... .............. ... .. .....4- 3 3
Adjust me nts .. .. ... .............. ... .. ....... ... .. ............... .. ... .............. ... .. ....... ... ..4-36
Pick Module Timing.......................................................................4-36
Dispenser Motor Drive Belt Tension ...........................................4-45
Preve nt i ve Ma i nt e n a nc e...... .. ............... .. ... ....... ... .. ............... .. .. .......... 4-46
Pick Modules...................................................................................4-46
Currency/M e di a Co nt ainers ........ ....... .. ... ....... .. ... .............. ... .. .....4-47
Lubrica t i o n ......... ....... .. ... .............. ... .. ............... .. ... ....... .. ... .............. ... ..4-48
Lubricant Type................................................................................4-48
General Instructions .......................................................................4-48
Spray M o du le....... .. ... .............. ... .. ....... ... .. ............... .. ... .............. ... ..4-49
Pick Module.....................................................................................4-49
Cleaning................................................................................................4-50
Repla ce m e n t In s tr u ct ions.. .. ....... ... .. ............... .. ... ....... .. ... .............. ... ..4-51
Replacing the Control Board.........................................................4-51
Replacing the 5635 Spray Presen ter.............................................4-53
Replacing a 5635 Dispenser Pick Module................................... 4-54
Configuration........................................... ............................................ 4-55
RS232 Comms..... .................. ...................................... .......... ...........4-55
Bill Singularity ................................................................................4-55
Connector Pin-outs..............................................................................4-56
AC Connector..................................................................................4-56
RS232 Connector.......... .......... ..................................... ........... .........4-56
DC Connector..................................................................................4-57
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NCR 5635 Spray Currency Dispenser Service Manual xi
Table of Contents
Appendix A
Specifications
Currency...........................................................................................A-1
Currency Cas set te s..... ... .. ............... .. ... ....... .. ... .............. ... .. ............. A-1
Rejec t Bin ......... ... ....... .. ... ....... ... .. ............... .. .. ............... .. ... ....... ... .. ... A-1
EMC...... ... .. ............... .. .. ............... .. ... ....... ... .. ............... .. .. ............... .. . A- 2
Power Requirements.......................................................................A-2
Acou st ic No i s e ..... ... .. ............... .. .. ........ .. ... .............. ... .. ............... .. .. . A -3
Weigh t.. ............... .. ... .............. ... .. ....... ... .. ............... .. ... .............. ... .. ... A-3
Dimen s io n s . ........ .. ... .............. ... .. ............... .. .. ........ .. ... .............. ... .. ... A-3
Envir on me n t ........... .. .. ............... .. ... ....... ... .. ............... .. .. ............... .. . A-4
Index ....... .. ....... ... .. ............... .. ... .............. ... .. ....... ... .. ............... .. ... ... Inde x- 1
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xii NCR 5635 Spray Currency Dispenser Service Manual
Table of Contents
Dispenser Functional Description
Chapter 1
Dispenser Functional Description
Introduction 1-1
Currency Co ntai ne rs 1-3
Curren cy Ca s set te s 1-3
The Cassette Lid 1-5
The Cassette Body 1-5
The Cassette Base 1-6
Cassette Operation 1-7
Purge Bin 1-8
Pick Modules 1-10
Currency Cassette Guides and Latch 1-11
Cassette Identity Sensors 1-11
Pick Modu le Keyplate 1-11
Pick Action 1-11
Pick Me chanism Operation 1-12
Pick Sensor 1-14
Cassette Low Sensor 1-14
Pick Module Transport 1-14
Presenter 1-15
Dispenser Motor and Transport 1-16
Main Timing Disk 1-16
Linear Variable Displac e ment Transducer (LVDT) 1-16
Divert Gate 1-17
Exit Sensor 1-17
Control Boa rd 1-18
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NCR 5635 Spray Currency Dispenser Service Manual
Table of Contents
Dispenser Functional Description
Firmw a re D e sc riptio n 1-20
Dispense Operation 1-22
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NCR 5635 Spray Currency Dispenser Service Manual
Dispenser Functional Description
Introduction
A
Introduction
The 5635 Spray Currency Dispenser dispenser is designed to take
currency bills from a secure storage, check them, and present them
to the cardholder. The term
the dispenser presents the bills in a continuous stream, or spray,
rather than bunching them together and presenting the bills as a
single bundle.
The dispenser operates as an intellig en t d evice under the control of
its own on-board microproc e ssors. It commu nicates with the PC
core over an RS-232-C serial in terface.
spray
is used to de scribe the wa y tha t
1
The d isp e nser consists of th e f ol l owin g m o du l e s :
●
Curre ncy Co nt a i ne r s
●
Pick Modules
●
Presenter
●
Control Board.
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NCR 5635 Spray Currency Dispenser Service Manual 1
-1
Dispenser Functional Description
Introduction
The dispenser consists of from one to four pick modules hung
beneath a spray presenter module to allow one, two, three or fo u r
pick positions. Pick position number 1 is immediately below the
spray module, number 2 is below number 1, number 3 below
number 2, and 4 below 3.
Cassettes containing the currency are latched into the pick modules
and the currency is dispe nsed from the cassettes and tran sp orted to
the exit slot to be collected by the cardholder. Misfed or fault y
currency is diverted into a purge bin.
The path of notes through the dispenser is shown in the following
diagram.
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1-2 NCR 5635 Spray Currency Dispenser Service Manual
Dispenser Functional Description
Currency Containers
Currency Cassettes
Currency Containers
Currency in the dispenser is held in currency cassettes which can
also be used to transport currenc y between a central loading area
and the location of the Automated Teller Unit (ATM). Security is
provided by a seal on the cassette lid latch.
Rejected currency is diverted to the purge bin in the dispenser. This
bin can be just an open area fitted with a sealable flap or can be a
conta i ne r that lat ches in t o the disp e n s e r.
Both the currency cassettes and the purge bin remain seal fast
secure when the ATM is opened
Currency cassettes are moulded in high impact polycarbonate in
1
three parts: the lid, the body and the base.
1
There are two types of cassette used with the 5635 dispenser;
Standard and Tamper Indicating. The Tamper Indicating cassette
has a counting mechanism in the base that counts the number of
times the cassette is inserted into the dispenser up to a maximum of
six. This feature provides additional security in the handling and
movement of cassettes.
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NCR 5635 Spray Currency Dispenser Service Manual 1-3
Dispenser Functional Description
Currency Containers
Spacers and note g u ides in the cassette are adjusted t o ho ld a single
currency denomination within the range of sizes of bills dispensed
by the currency dispenser. This range is as follows:
Minimum Maximum
Width Leng th Width Length
62mm
(2.44in)
120mm
(4.72in)
95mm
(3.74i n)
172mm
(6.77in)
The illustration below shows an open currency cassette looking
from the rear (handle) en d towards the front (truck door) end.
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1-4 NCR 5635 Spray Currency Dispenser Service Manual
Dispenser Functional Description
Currency Containers
The Cassette Lid
The cassette lid h ooks int o locat in g slot s at the fro nt of the body and
is latched at the rear. A bank seal can be used to secure the latch.
The Cassett e Bo d y
The cassette body holds th e st ack of c urr ency und er pre ssur e f rom a
spring - loaded pusher mec hanism. The fr ont of the cassette is
formed by a roller type truck door which is opened only when the
cassette is inserted into the dispens er pick module . As notes are
taken from the stack at thi s open end the pusher moves towards the
front. A magnet attach ed to the pusher operates a reed switch in the
pick module to si gn a l a low c urrency co n dition w h en the stack ha s
almost all been dispensed.
Other magn e ts, under a cover o n the side of the cass ette, in
combination with reed switches on the pick module, produce a
binary code that is used to identify the cassette type to the dispenser
softwa re, and , theref or e , the value o f the curr en cy i t co nt ains. A
cassette can be put in a pick module in any position and its type wil l
be recogn ised from the magne t code. More than one cassette of a
particular type can be installed. The dispenser treats all cassettes
with th e sa me ty p e a s one logi c al cass e tt e .
1
1
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NCR 5635 Spray Currency Dispenser Service Manual 1-5
Dispenser Functional Description
Currency Containers
The Cassett e Base
The following illustration shows the components inside the cassette
base.
The ba se o f the cassette ho lds the truck door and its r e tr actio n
mechanism, the pusher ratchet slide and lever. The external shape
of the base forms rails which slide into the cassette guides in the
pick module.
1
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1-6 NCR 5635 Spray Currency Dispenser Service Manual
Dispenser Functional Description
Currency Containers
Cassette Operation
The above illustration shows the components of the dispenser pick
module which mate with the cassette. When the cassette is inserted
into the dispenser the prongs of the pick module keyplate enter the
holes in the base of the cassette and push against locking pawls on
the truck door. T he doo r is push ed into th e c asset te ba se, leavi ng the
front open to permit the currency to be picked from the cassette and
dispensed.
1
Removal of the casse tt e from t he di spen ser a utoma tica lly clo ses an d
latches the f ront door and the int e rior of the cassette can only be
reached by opening the top access lid.
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NCR 5635 Spray Currency Dispenser Service Manual 1-7
Dispenser Functional Description
Currency Containers
Purge Bin
The purge bin is located in the presenter module just where the
1
currency exits from the dispenser. If a fault is detected during a
dispense (say, double or damaged bills) then the reject gate is
operated to deflect the bills in to the purge b in.
There are two types of bin in the 5635 dispenser:
●
Standard
●
Latch fast.
The standard bin consis ts simply of a space below the presen te r
transport fitted with a flap door that can be sealed.
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1-8 NCR 5635 Spray Currency Dispenser Service Manual
Dispenser Functional Description
Currency Containers
The latch fast bin is located in the same area but has a similar
mechani sm to the currency cassettes in th at it is latched into place
and keyplate prongs open a slot in the top of the bin to accept the
rejected currency. Currency is removed from the latch fast purge bin
through a door that can be sealed. A microswitch in the presenter
informs the f irmware that th e latchfast bin is in pl ace.
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NCR 5635 Spray Currency Dispenser Service Manual 1-9
Dispenser Functional Description
Pick Modules
Pick Modules
The pick modules pick bills from the currency cassettes and
transport them to the spray presenter. The movement of items
throu g h the tra ns p ort is mo n i to r e d . P ick mod ul e s ca n be ei ther
single or d oubl e (can hold one or two cass ettes ) an d are fitt ed below
the presenter to give one, two, three, or four cassette p ositions. Pick
position s are numbered top to bo ttom with 1 at the top.
1
The table below lists the func tions of the pick mod ule and the
components responsible for achievin g the function :
Pick Module Funct ions Components Responsible
Hold a currency cassette Cassette guides and latch
mechanism
Identify the inserted cas se tte Cassette identi ty sensor s
Open the front of the cas s ette Pick modu le keyp l ate
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1-10 NCR 5635 Spray Currency Dispenser Service Manual
Dispenser Functional Description
Pick Module Funct ions Components Responsible
Pick Modules
Currency Cassette Guides and Latc h
Cassette Iden ti ty Sensors
Pick Module Keyplate
Pick bills one by one from the
cassette
Detect when currency is running low Cassette low sensor
Transport the bills to the next pick
module abo ve or to the spra y
presenter.
Pick arms and suction cups
Pick solenoids and timing disks
Pick sensor
Belt and gear driven transport
mechanism
The currency cassette rests on rails in the side frames of the pick
module. Upper guides on the side frames and a spring loaded cat ch
1
hold the cassette firmly in position.
A PCB on the side of the pick module car ries four (or eight on the
double pick module) encapsulated reed switches. These switches
1
are influenced by small permanent magnets housed on the side of
the cassette. The magnets can be moved within the cassette housing,
or left ou t, so that a given combination of switches is activated. This
creates a binary code (see Chapter 4) which is used to identify the
cassette to the firmware on the control board and thus to the
terminal’s application software which is then able to dispense bills
of a specifi c den omination.
When the cassette is inserted into the dispenser the prongs of the
pick mod u le keyplate enter the holes in its base. Th e cassette door is
1
pushed into the cassette base, leaving the front open to permit
access to the currency. On removal of the cassette, the keyplate
draws the cassette door closed and secures the currency within the
cassette.
Pick Action
Each pick module carri es one pick sole noid, a vacuum system
1
connected to the vacuum pump in the presenter, and a pick
mechanism. The pick solenoid is energized to cause the vacuum to
be applied to the suction cups. The pick solenoid stays energized
when multiple bills are picked from the same cassette. For each pick
cycle one bill is picked and fed into the transport mechanism.
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NCR 5635 Spray Currency Dispenser Service Manual 1-11
Dispenser Functional Description
Pick Modules
Pick Mechanism Operation
In the case of a failure to pick a bill, the pick solenoid stays
energized for an additional three or four cycles. After the first
failure to pick, the firmware searches for another cassette of the
same curre ncy denomina tion. The search order is from cassette
position 1 downw ar ds. If the pic k sens or still do es no t dete ct a bill,
there is a delay of o ne second, to allow the v a cu um to build up, and
then another pick attempt is made. If this fails, there is a further
delay of t en se cond s and on e mor e att empt i s mad e to pi ck a bill. I f a
bill has not been picked after three attempts of four or five pick
cycles, a status code identifying the pick failure is sent to the PC
core.
After receipt of a valid dispense command, the dispenser motor is
switched on to drive all the dispenser transport sections, swing the
1
pick arms back and forth, and drive the vacuum pump.
A plastic disk printed with timing marks is attached to the drive
cam that imparts the oscillat ing mot ion to the pick arms . A cut out
section of the disk forms a timing arc which is detected by an optical
switch and is used (ANDed with a signal from the currency
dispenser control board) to produce the electrical pulses that
energize and de-energize the pick solenoid valve. The solenoid
valve is ene rg ized followin g a tr ansition throu g h sen sor clear to
senso r b l o ck e d and it re mains e n e rg ized wh i le the seg me nt on the
disk is obscuring the optical sensor. This time corresponds to the
time when the pick arms are just reversing away from the currency
in the cassette until they are above the pick wheels of the transport.
When the solenoid valve is de-energized it closes off the pump
secti on of tub in g . Th e tu bi n g to the pi ck a rm v e nt s to atm os p he re
via backflow through the de-energ ized solenoi d. The note d rops off
the suction cups and is gripped by the pick and pressure wheels.
The letter D a nd numbe rs 1, 2, 3, and 4 printed on the timing disk
are used to set and che ck th e timing of indi vidual p ick mod ules and
this adjustme nt is described in the “Adjustments” section of
Chapte r 4.
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1-12 NCR 5635 Spray Currency Dispenser Service Manual
Dispenser Functional Description
Pick Modules
The following list summarises a single pick operation cycle:
●
As the pick arm suction cups are about to touch the bills in the
cassette, the pick solenoid energizes and the vacuum is applied
to the su c tion c up s
●
The pick arm suction cups then hit and hold the end bill within
the cassette
●
The pick arms swing up and a way from the cassette, removing
the bill through the door opening and pos ition ing it just above
the pick wheels
●
The bill is taken up between the pick and p ressu re whe els and
fed into the tr a n sp o rt sec tion.
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NCR 5635 Spray Currency Dispenser Service Manual 1-13
Dispenser Functional Description
Pick Modules
Pick Sensor
Cassette Low Sensor
The above pick and feed operation repeats until the bill count of
good bills at the pick sensor equals the number given by the
dispen se command.
A photosensor, mounted between the pick mec hanism and the
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transport section, detects that a bill has been picked from the
cassette. The pick sen sor consists of two assemblies hard wired to
the pick harn e ss. A photo-transistor is on one a sse mbly and an
infra-red light emitting diode is on the other. The light emitting
diode is in the same assembly as the cassette low sensor. The pick
sensor and the LED are attached so that they “look” across the path
of the notes so that when a note blocks the light path, it is detected.
The pick sensor output is converted into note width by monitoring
the number of interrupts while the sensor is blocked with the
interrupts generat e d b y t he mai n transport ti ming disk on the
presenter. A difference of plus 5 or minus 5 timing wheel ticks in
width fr om th e kn o wn wid th of the curre ncy (st o re d i n N VRAM)
will cause the note to be rejected to the purge bin and the pick to be
attempted th re e mo re ti m e s .
The casse tt e low s en sor co ns ists of a r eed swi tch att ached to the p ick
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module keyplate. The reed switch is held on a bracket which
projects into the open door of the cassette. It operates when a
permanent magnet attached to the currency pusher mechanism
approaches the front of the cassette. In the plastic cassette, the
position of this magnet can be set to actuate the switch when either
±±
75 50 or 200 50 bills are left.
The vertical transport of the pick modules on the 5635 dispense r
Pick Module Transport
consists of t hree belts s tretc hed between an upper driven shaft an d a
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lower idler shaft. Smooth plastic skid plates project between the
centre belt and the two outer belts. The belts press the centre and
ends of the not e s b e yond the top surface of the skid plates so that
the notes are held in pinch and adopt a shallow W-shape as they ar e
driven upwards into, either, the tran sp ort of a higher pick module,
or the spray presenter transport.
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Use pursuant to Company Instructions
1-14 NCR 5635 Spray Currency Dispenser Service Manual
Dispenser Functional Description
Presenter
Presenter
The spray presenter is mounted above the uppermost pick module.
It receives bills passed up to it from the pick modules and transports
them to the exit slot of the Cash Dispenser terminal. If damaged or
double bills are detecte d, the diver t gate in the spr ay presen te r is
operated to deliver the currency into the purge bin. The dispenser
motor is housed in the presenter and, via gearing and drive belts, it
drives the transports of the presenter and all the pick modules.
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The spray presenter houses the following assemblies:
●
Dispenser motor and transpor t se ction
●
Main timin g d isk
●
Linear Variable Displacement Transducer
●
Exit sensor
●
Divert gate
●
Purge bin.
NCR - CONFIDENTIAL AND PROPRIETARY
Use pursuant to Company Instructions
NCR 5635 Spray Currency Dispenser Service Manual 1-15
Dispenser Functional Description
Presenter
Dispenser Motor and Transport
Main Timing Disk
Linear Variable Displacement Transdu cer (LVDT)
The spray presenter is supplied with eith er a 120 V or 240 V
induction type motor. T his motor dri ves the pr esenter tran sport and
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also, via toothed timing belts and gear trains, the transports and
pick arms of the pick modules. It also powers the pick vacuum
system.
In the presenter transport the bills are gripped between an upper
and a lower be lt and driven through plastic guides to the dispen ser
exit.
The main tim in g d isk is incorporated in the pr es e nter tra n sp o rt
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attached to the LVDT reference wheel shaft. The beam of an optoelectronic sensor is chopped by the segments of the disk to create
timing pulses. These timing pulses are used to measure the
movement of the bills and as a reference in the measurement of bill
width. The interval between each pulse represents a distance
travelled by the bill of approximately 2 mm.
The term “singularity” describes the parameters used by the
dispenser to recognize a singl e curren cy bill . In the 5635 dispenser
the detec tion of singularity of the curr ency is related to the crosssectional area of the bills. This is measured by the Linear Variable
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Displacement Transducer assembly shown in the illustration below.
NCR - CONFIDENTIAL AND PROPRIETARY
Use pursuant to Company Instructions
1-16 NCR 5635 Spray Currency Dispenser Service Manual
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