NRI G-13.mft MDB/S1 User manual

Technical documentation
National Rejectors, Inc. GmbH • Zum Fruchthof 6 • D-2 6 4 Buxtehude
Phone: [phone] • Fax: [phone] • e-mail: [email protected] • Internet: www.nri.de
CRANE
.03 Wis/ds
Edition .
BA.G 3MFTEMPMDB-GB
Electronic Coin Validator
G-13.mft (ECV and MDB model)
Operatin instructions

G- 3.mft TABLE OF C ONTENTS
National Rejectors, Inc. GmbH, Buxtehude 3
Table of contents
1 Introduction 7
General information about these instructions 7
General information about the coin validator G- 3.mft 8
Advantages 8
Models 9
ECV model 9
MDB model 9
Top and Front entry 0
2 Safety instructions 11
3 Construction 12
Switching block 4
Return lever 5
Interfaces 6
Interfaces ECV model – machine 6
Coin signal lines/external inhibit signal lines 6
Return signal line 6
External common inhibit signal line 7
Interface MDB model – machine 7
Interface – configuration (WinEMP/PalmEMP2) 8
Interface – external sorting device 8
Label 9

TABLE OF C ONTENTS G- 3.mft
National Rejectors, Inc. GmbH, Buxtehude
4
4 Function 20
Measuring principle of the coin validator and
coin acceptance 20
Coin channels 2
Accepted coin sensor 22
ECV standard variant and MDB model 22
Casino variant 22
Transfer of coin values by means of coin impulses via
coin signal lines (not with the MDB model) 23
Coin impulse length (not with the MDB model) 23
Controlling external sorting of accepted coins
(not with Casino variant) 24
Sorting time of an external sorting device 24
Do not accept coin types 25
ECV model 25
External common inhibit 25
External inhibit of single coin types 25
Internal inhibit of single coin types/coin type groups 25
MDB model 26
External inhibit of all/single coin types 26
Internal inhibit of single coin types/coin type groups 26
5 Startin up 27
Starting up in the machine 28
Starting up at the tester (not with the MDB model) 29
Installation at the PC 29
Device environment for ECV model 29
Device environment for MDB model 30
Connection to a Palm Handheld 30
6 Operation 31
Inhibit coin channels 3
Teach mode 33
Assignment of DIL switches to coin channel
(in teach mode) 33
Teach coin channels 33

G- 3.mft TABLE OF C ONTENTS
National Rejectors, Inc. GmbH, Buxtehude 5
7 Which functions can be set usin WinEMP/
PalmEMP2? 35
ECV model 36
MDB model 36
8 Technical data 37
CE Certification 38
Pin allocation and connection diagrams 40
ECV model 40
MDB model 42
Programming plug 44
G- 3.mft – external sorting device 45
Mounting dimensions 46
Standard model 46
View from front 46
View from rear 46
View from above 47
View from below 47
View from the side 48
Front plate model without front plate 49
View from front 49
View from rear 49
View from above 50
View from below 50
View from the side 5
Front plate model with MIDI front plate 52
View from front and rear 52
View from right 53
Front plate model with MINI front plate 54
View from front and rear 54
View from right 55
Cleanin 56
Index 57
Glossary 60

G- 3.mft INTRODUCTION
National Rejectors, Inc. GmbH, Buxtehude 7
1 Introduction
General information about these instructions
These operating instructions describe the design and operation of the ECV
and MDB models of electronic coin validator G- 3.mft. Chapters 5 und 6
explain the necessary steps for starting and operating the coin validator. The
index and glossary reduce the search for specific explanations.
To make it easier for you to navigate within these instructions and to operate
the device, the following markings were used within the text:
•Safety instructions, which have to be taken note of in order to
protect operators and equipment, have been written in bold and given
the pictogram .
• Special notes, which are to facilitate the use of the coin validator, have
been written in italics and also been given a pictogram .
• Requests to perform an action are given sequential numbers ( ., 2., 3.
etc.).
To configure and test the coin validator reference is made to the separate
operating instructions of the NRI PC software "WinEMP" and the NRI Palm
Handheld software "PalmEMP" (refer also to Chap. 7 "What functions can
be set using WinEMP/PalmEMP"):
• WinEMP – The configuration and diagnostics program for NRI coin
validators, operating instructions for the G- 3.mft
• PalmEMP2 – Operating instructions for configuration of coin validator
G- 3.mft
• Tester G- 9.0594/4 for G- 3 ECVs
If these instructions are not available to you, they can be
downloaded at any time from the NRI homepage (www.nri.de) in a
compressed PD format.

INTRODUCTION G- 3.mft
National Rejectors, Inc. GmbH, Buxtehude
8
General information about the coin validator G-13.mft
The electronic coin validator G- 3.mft (Multi-Frequency-Technology) in
standardized 3 /2" format is based on the tried and tested features of the
G- 3.6000. Due to its modular and compact design, the G- 3.mft -is ideally
suited for amusement, vending and service machines.
The Multi-Frequency-Technolo y is new in the G- 3.mft. It provides
more flexibility for the measuring sensors, multiple scanning of the coins
inserted for optimum material recognition and evaluation of 24 measuring
parameters for reliable acceptance of genuine coins and separating out of
false coins. Thanks to the coin validator’s Flash-Technolo y software
downloads to adapt the measuring technology, coin data and control
software can be executed quickly and simply. The G- 3.mft has 32 coin
channels which are managed in a single memory block.
To be able to react as quickly as possible to new false coins and to enable
you to make your individual adjustments, in future the coin validator will be
connected to a PC programming station which is made up of the configuration
and diagnostics software WinEMP including card reader and the tester
G- 9.0594/4 (for ECVs) or G-55.0338 (for MDB). With the aid of the Palm
Handheld software "PalmEMP2" you can configure the coin validator directly
at the machine independently of the PC.
Old currency and new coins being added to a currency which have not been
taken into consideration at the manufacturer can be programmed in the
optional teach mode directly at the coin validator by inserting coins.
Advanta es
• Acceptance speed of 2 coins per second
(Casino model: 6 coins/sec.)
• 32 coin channels which can be inhibited individually or in groups
• Teach mode for 6 coin channels
• Operating and manipulation safety thanks to optical accepted coin
sensor and sorting control in coin outlet area
• Interface for connection to a programming station which makes
immediate reaction to the use of false coins possible
• Multi-Frequency-Technology for reliable coin recognition
• Flash-Technology for uncomplicated and time saving software
adjustments

G- 3.mft INTRODUCTION
National Rejectors, Inc. GmbH, Buxtehude 9
Models
The G- 3.mft is available as an ECV (electronic coin validator) and as an
MDB (multi drop bus) model. A totalizer model is being developed. Of the
ECV model you have at your disposal the proven standard and casino
variant.
ECV model
The G- 3.mft as an ECV model communicates with the machine via a
parallel interface. It is used whenever coins inserted into a machine have to
be checked for certain coin properties.
Coins inserted into the coin validator pass inductive and optical sensors
which check the coins and there they generate individual measurement
values. Due to a special construction and arrangement of the sensors, each
coin is checked for its material properties and dimension. If the measurements
of the coins inserted agree with the values stored in the coin validator, the
coin is accepted for payment; if they do not agree, they are rejected.
The ECV model is available as
• Standard ECV and
• Casino variant for fast coin acceptance (e.g. gambling machines)
MDB model
The G- 3.mft as an MDB model communicates with the machine, as
opposed to the ECV, via a serial MDB interface. The machine operates as
a master and the G- 3.mft as a slave. The G- 3.mft MDB is used whenever
coins inserted in a machine have to be checked for certain coin properties,
exactly like the ECV model.
The measuring and validating principle is the same as that of the ECV model.

INTRODUCTION G- 3.mft
National Rejectors, Inc. GmbH, Buxtehude
0
Top and Front entry
Both models of the G- 3.mft are available with top or front entry. The
G- 3.mft with front entry generally has a MIDI front plate or a MINI front plate
fitted to the left-hand side of the device (see Chap. 3 "Construction"). The
device is, however, also available as a front entry model without front plate.

G- 3.mft SAFETY INSTRUCTIONS
National Rejectors, Inc. GmbH, Buxtehude
2 Safety instructions
Series G- 3.mft coin validators are for use in the amusement, vending, and
service machines. They have been constructed in compliance with the state
of the art and the recognized safety regulations. Nevertheless this equipment
can be a source of danger. Therefore please observe the following safety
regulations.
Only use the coin validator for the above-mentioned purpose.
Under no circumstances can the manufacturer be held liable
for any dama e or loss resultin from improper use of the
device.
The coin validator may only be connected by a qualified
electrician.
The coin validator pcb is fitted with components which may be
dama ed beyond repair by electrostatic char es. Please
observe the handlin instructions for components at risk due
to static.
Pull out the vendin machine’s mains plu before you install,
clean or remove the coin validator.
Apply the correct supply volta e to the coin validator (refer to
label).
Ensure the correct potential equalization in the vendin
machine.
Never pull the connectin cable of the coin validator from the
vendin machine when a volta e is applied.
Contact NRI if you wish to alter the construction of the device
to a reater extent than that described in these instructions.
Keep water and other liquids away from the coin validator.
If the device is no lon er required please dispose of it
correctly.
Before installin the coin validator for the first time, please
read these instructions carefully at least once.
We reserve the ri ht to make technical modifications to the
device which are not covered by these instructions.

DESIGN G- 3.mft
National Rejectors, Inc. GmbH, Buxtehude
2
3 Construction
2
1
3
4
5
2
1
9
87
6
6Switching block
7Interface – external sorting device
8Interface –
PC programming station (WinEMP)/
Palm Handheld (PalmEMP2)
9Interface – machine/tester
1Return lever
2Coin insert funnel
3Mounting studs
4Coin outlet – return area
5Coin outlet – cash-box
Fi . 1a: Construction – G- 3.mft standard model
3
33
3
3

G- 3.mft CONSTRUCTION
National Rejectors, Inc. GmbH, Buxtehude 3
Fi . 1b: Construction – G- 3.mft front plate model with front plate
6Switching block
7Interface – external sorting device
8Interface –
PC programming station (WinEMP)/
Palm Handheld (PalmEMP2)
9Interface – machine/tester
1Return button
2Coin insert funnel
3Mounting studs
4Coin outlet – cash-box
5Coin outlet – return area
9
87
6
3
3
3
3
2
5
5
5
1
1
4
MIDI
MINI

DESIGN G- 3.mft
National Rejectors, Inc. GmbH, Buxtehude
4
Coins inserted into the coin validator pass through the coin insert funnel 2
into the measurement and validation area of the device, in which their coin
properties are compared with the values of the stored acceptance bands.
Coins rejected by the coin validator pass into the return area 4, Fig. a/5, Fig.
b, and coins accepted for sale leave the device through the coin outlet 5,
Fig. a/4, Fig. b, and are fed into the cash-box or an external sorting device.
(See Figs. a and b)
At the rear the coin validator has an interface 9 with the machine (tester) and
an interface 7 with an external sorting device, at the side via an interface 8
with the card reader of the PC programming station (WinEMP) or the Palm
Handheld (PalmEMP2) (see Figs. a and b).
Individual settings such as inhibiting various coin types can be made using
the switching block 6 on the rear of the device (see Fig. 2).
Switchin block
The coin validator has a switching block with eight DIL switches S –8 on the
rear (see Fig. 2).
DIL switch off on
S Coin channel (group) free Coin channel (group) inhibited
S2 Coin channel (group) free Coin channel (group) inhibited
.
.
S6 Coin channel (group) free Coin channel (group) inhibited
S7 Operating mode Teach mode
S8 Normal acceptance band Wide acceptance band
(in the teach mode) (in the teach mode)
Fi . 2: Switching block

G- 3.mft CONSTRUCTION
National Rejectors, Inc. GmbH, Buxtehude 5
Coin channels or the coin types assigned to the coin channels can be
inhibited via the first six DIL switches of the switching block. To do this the
DIL switches are assigned a coin channel randomly. A group of selected
coin channels can be assigned to a switch to inhibit a number of coin
channels (see section "Inhibit coin channels" in chapter 6 "Operation").
The seventh and eighth DIL switch is used to program coin types or tokens
in teach mode (see section "Teach mode" in chapter 6 "Operation").
Return lever
The return lever (1, Fig. a) on the top of the device is operated using the
return button on the vending machine if the coins which have already been
inserted are to be returned or a jam caused by coins which have become
stuck needs to be removed. Operating the return lever opens the
measurement and validation area of the coin validator so that all objects in
the coin validator are transported into the return area.
Devices with front entry through a front plate do not have a return lever. Here
the measurement and validation area is opened by pressing the return
button (1, Fig. b) on the front plate.

DESIGN G- 3.mft
National Rejectors, Inc. GmbH, Buxtehude
6
Interfaces
At the bottom right-hand side of the rear of the coin validator there is a 0-pole
connecting plug to the machine (tester) whilst on the left at the centre there
is a 3-pole JST plug for connecting an external sorting device. On the left-
hand side there is an interface with the programming station or Palm
Handheld. (See Figs. a and b)
Interfaces ECV model – machine
The coin validator is connected to the machine (tester) via the parallel
interface and a 0-pole cable.
Please refer to the section "Pin allocation and connection diagrams" in
chapter 8 "Technical data" for more details on pin allocation.
Coin si nal lines/external inhibit si nal lines
Usually the coin validator transmits one coin impulse for every accepted coin
to the vending machine via one of six coin signal lines (signal: low = active).
As a certain coin type is assigned to a certain coin signal line, the vending
machine can identify which type of coin has been inserted. Which coin type
generates an impulse on which signal line is set at the factory in accordance
with the customers’ specifications and can be re-configured with the
WinEMP PC software or PalmEMP2 at any time.
Coin types can be inhibited from the vending machine via the coin signal
lines (coin signal lines = external inhibit signal lines). Which of the six
external inhibit signal lines inhibits which coin type is set at the factory in
accordance with the customers’ specifications but it can also be defined in
WinEMP or PalmEMP2.
Return si nal line
When the return lever/return button is operated, the coin validator transmits
a return signal to the vending machine via the return signal line. By opening
the measurement and validation area the coins or objects in the coin
validator are returned via the return chute.
The return signal line can also be used to sort inserted coins (see
section "Control for external sorting of accepted coins" in chapter 4
" unction").

G- 3.mft CONSTRUCTION
National Rejectors, Inc. GmbH, Buxtehude 7
External common inhibit si nal line
If the common inhibit signal line from the machine is activated (signal: high
= active), coin acceptance is blocked. No coins are accepted.
Each coin type can be inhibited individually or in groups using the
DIL switches (see section "Inhibit coin channels" in chapter 6
"Operation").
Interface MDB model – machine
The coin validator is connected to the machine via the serial MDB interface
and a 0-pole cable via which it can receive information from the machine
or send information to the machine. The machine operates as a master and
the G- 3.mft as a slave. The master can communicate with several slaves
(e.g. coin and bill validator). To ensure unambiguous communication each
device has its own MDB address. The address of the G- 3.mft is "0 ".
The G-13.mft as an MDB model does not fulfil the MDB specification
on two counts, i.e. a specified voltage range and electrical isolation of
the communication lines.
If a supply voltage of 42 V max. and electrical isolation are desirable,
an MDB converter G-55.0360 can be ordered from NRI (ordering
code 23627).
You can obtain further information about the MDB interface
• in the "NAMA document MDB/ICP 2.0" (www.vending.org) and
• in the NRI specification for the G- 3.mft "G- 3.mft MDB
Communication Interface", which we will be pleased to place at your
disposal on request.
Please refer to the section "Pin allocation and connection diagrams" in
chapter 8 "Technical data" for more details on pin allocation.

DESIGN G- 3.mft
National Rejectors, Inc. GmbH, Buxtehude
8
Interface – confi uration (WinEMP/PalmEMP2)
To configure the coin validator the device is connected to a PC or a mobile
Palm Handheld. To do this the back of the G- 3.mft has on the right-hand
side a 0-pole interface (see Figs. a and b) which can be used to connect
the coin validator to the PC using cable, adapter, card reader and connecting
cable, or to a Palm Handheld via a connecting cable. The device is set by
means of the configuration and diagnostics software WinEMP or PalmEMP2
(see separate software instructions).
Please refer to the section "Pin allocation and connection diagrams" in
chapter 8 "Technical data" for more details on pin allocation.
Interface – external sortin device
There is a 3-pole JST plug (see Figs. a and b) in the middle on the left on
the rear of the device. This plug can be used to control sorting gates for
sorting inserted coins (see section "Pin allocation and connection diagrams"
in chapter 8 "Technical data").
The 3-pole sorting plug is made by the JST company and has the
type designation "ZH connector", 1.5 mm. You can obtain further
information about the plug at the Internet address www.JST.com.

G- 3.mft CONSTRUCTION
National Rejectors, Inc. GmbH, Buxtehude 9
Label
The label of the coin validator contains all the data defining the device such
as device series, device type and variant as well as customer specific
default values such as coin type or coin signal line:
or the MDB model of the G-13.mft there is no assignment of coin
signal lines to the coin types.
10 Ordering code
11 Order number
12 Device variant
Validator = ECV, Standard
Casino = ECV, Casino
MDB = MDB model
13 Device type
9V = Front entry wt. front plate for ECV, Standard
9B = Front entry wt. front plate for MDB model
8V = Front entry w. front plate MINI for ECV, Standard
8B = Front entry w. cover plate MINI for MDB model
7V = Front entry w. front plate MIDI for ECV, Standard
7B = Front entry w. front plate MIDI for MDB model
6V = Top entry for ECV, Standard
6C = Top entry for Casino variant
6B = Top entry for MDB model
Fi . 3: Label – Casino variant
2 3 4
670
2
3
59 8
1Currency and Coin type
2Coin signal line of the coin type
3DIL switch assignment:
Inhibit coin type
Activate channel with narrow
acceptance band
4Other coin types with individual
assignments
5Nominal voltage
6Barcode
7Date of manufacture
8Data block number
9Serial device number per order
number

FUNCTION G- 3.mft
National Rejectors, Inc. GmbH, Buxtehude
20
4 Function
This chapter describes how the coin validator works, using the route which
an inserted coin takes in the coin validator:
• Measuring principle and coin acceptance
• Coin channels
• Accepted coin sensors
• Coin impulses and signal lines (not with the MDB model)
• Control external sorting device
• Inhibit coin acceptance
Measurin principle of the coin validator and coin acceptance
Coins inserted into the coin validator pass inductive and optical sensors
which check the coins and there they generate individual measurement
values. Due to a special construction and arrangement of the sensors, each
coin is checked for its material properties and dimensions. An upper limit
and a lower limit are stored for each coin type, a so-called acceptance band
so that the coin validator knows whether to accept a coin or not. If the coin
values measured are within the acceptance band, the coin is accepted for
sale when it has passed the acceptance gate and accepted coin sensors,
but if they are outside the band, it is rejected and directed into the return area.
The limit values of the acceptance bands are programmed by the
manufacturer according to the customers’ specifications, but can be
adjusted with the WinEMP PC configuration software or PalmEMP2.
The casino variant also accepts coins which are inserted very
quickly one after the other. Depending on the length of the coin
impulse, the insertion speed can be up to 6 coins per second
without errors occurring or incorrect signals being transmitted. At the
same time as the coin impulses are triggered the acceptance gate
is controlled so that the next coin can be checked without delay
(there may be a continuous signal at the acceptance gate, but this
is not a problem).