wh Munzprufer Dietmar Trenner EMP 500 Series User manual

wh Münzprüfer Dietmar Trenner GmbH Teltower Damm 276 D - 14167 Berlin
- Version 1.5-
Technical Manual
ELECTRONIC COIN SELECTOR
EMP 500.xx v4

Technical Manual EMP 500.xx v4 wh Münzprüfer Dietmar Trenner GmbH, Germany
Version 1.51
Page 2/27 subject to technical modification EMP500.xx v4
0. Safety Precautions
You are advised to observe the safety information during operation, maintenance and repairing of
electronic coin selectors of the EMP 500 series. Failure to do so may result in warranty and other
claims being excluded.
Whilst every care has been taken in the preparation of information contained in this manual, wh
Münzprüfer will not be liable for any consequential loss or damage howsoever caused.
This manual is protected by copyright and all rights are reserved. Without prior authorisation by wh
Münzprüfer, no part of this manual may be reproduced in any form by photocopy, microfilm or other
processes nor may it be transmitted in any form usable by data processing. The rights of reproduction
by lecture are also reserved.
The Company would be very grateful if any accidental inaccuracies could be pointed out to us with
any other constructive criticism which might lead to a better understanding.

wh Münzprüfer Dietmar Trenner GmbH, Germany Technical Manual EMP 500.xx v4
Version 1.51
EMP8x0.00/04/13 v4 subject to technical modification page 3/27
Table of Contents
0. Safety Precautions........................................................................................................2
1. Introduction...................................................................................................................4
1.1. Technical Data.............................................................................................................4
1.1.1 The Connectors of the EMP 500.xx ........................................................................4
1.1.2 Technical Overview of the EMP 500.xx v4 ..............................................................6
2. Function of the Coin Selector.......................................................................................7
2.1. Introduction..................................................................................................................7
2.2. Programming of Coins.................................................................................................9
2.2.1. Calibration .........................................................................................................9
2.2.2. Cloning (Programming without Coins)..............................................................12
2.3. Coin Selector Output Signals................................................................................13
2.3.1. Inventory Impulse (Option /I)............................................................................14
2.4. Coin Blocking ............................................................................................................15
2.4.1. General Blocking (Option /M)...........................................................................15
2.4.2. Individual Coin Blocking via DIP switches........................................................15
2.5. Coin Values...............................................................................................................16
2.6. Slave Channels .........................................................................................................18
2.7. Coin Return ...............................................................................................................18
2.8. Safety Features.........................................................................................................18
2.8.1. Coin on a String (Strimming)............................................................................18
2.8.2. Coin Jam.........................................................................................................19
3. The Label ..................................................................................................................19
4. Maintenance..............................................................................................................20
5. EC Conformation Declaration ....................................................................................21
6. Appendix ....................................................................................................................22
7. Applications................................................................................................................26

Technical Manual EMP 500.xx v4 wh Münzprüfer Dietmar Trenner GmbH, Germany
Version 1.51
Page 4/27 subject to technical modification EMP500.xx v4
1. Introduction
The electronic coin selector EMP 500 has been especially designed for coin-
operated machines in which a mechanical coin selector has traditionally been
fitted. The mechanical dimensions fundamentally correspond to those of our
mechanical coin selector W2000. We offer a full range of front plates to ensure
that no alteration of the front-plate cut-out is required on the machine.
The electrical outputs of the EMP 500 have been especially designed to facilitate
the substitution of mechanical coin selectors, ensuring that only with minimal
technical amendments are required.
The coin selector has an operation voltage of 11 to 24 V AC or DC and is fitted
with switching outputs that – depending on version used – can totally replace the
micro switches or optocouplers of the mechanical coin selectors.
1.1. Technical Data
1.1.1 The Connectors of the EMP 500.xx
The EMP 500.xx v4 has 32 in-built coin channels and has 2 output lines. Coin
output assignment to the output lines can be freely programmed.
•EMP 500.00 v4
open collector outputs
30 V, 30 mA, UCEsat < 800 mV
•EMP 500.01 v4
solid state relay outputs
230 V AC, 600 mA
•EMP 500.04
galvanised separated infra-red optocoupler outputs, output transistors
closed in standby
35 V , 20 mA, UCEsat < 100 mV
maximum potential difference = 350 V DC
•EMP 500.12 v4
galvanised separated infra-red optocoupler outputs, output transistors
open in standby
35 V , 30 mA, UCEsat < 1 V
maximum potential difference = 350 V DC
There are 32 available coin channels – 16 master channels and 16 slave
channels. The slave channels can be freely linked to the master channels. They
then always have the same coin value and the same coin outputs as the master
channels. In general, they are used for the wide and narrow settings.
The programming of electronic coin selectors of the series EMP 500 is done via
the serial connector. Our Windows™ PC software wheasy2 or our software
whpocket for the Palm OS®organizer are available for this purpose.
Note: wh Münzprüfer maintains a policy of continuous research and
development and unconditionally reserves the right to technically
modify the EMP 500 v4 series coin selector and the wheasy 2
software / whpocket at any time.

wh Münzprüfer Dietmar Trenner GmbH, Germany Technical Manual EMP 500.xx v4
Version 1.51
EMP8x0.00/04/13 v4 subject to technical modification page 5/27
The electronic coin selector EMP 500.xx v4 is available with the following front
plates:
Front plate F503 117 x 60 mm (height x width)
Front plate F70.5 92,25 x 57 mm
Front plate F94.5 101 x 88,5 mm
EMP 500 with Front Plate F 70.5
EMP 500 with Front Plate F 503

Technical Manual EMP 500.xx v4 wh Münzprüfer Dietmar Trenner GmbH, Germany
Version 1.51
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1.1.2 Technical Overview of the EMP 500.xx v4
coin acceptance 32 coin channels, 16 master and 16 slave channels
coin blocking Individual coin or group of coins can be blocked through DIP
switches. The 16 switches can be freely assigned to each of the 32
coin channels. Each channel can be assigned two switches.
output signals Two coin output signals, open collector, optocoupler or solid state
relays. Each output line can be freely assigned to any of the 16
master coin channels through programming. Please note that the
number of coin pulses per coin can be freely programmed as well.
output pulse length 50 ms (±2%) to 10 seconds, programmable, pulse / pause interval
programmable.
supply voltage 11 V to 24 V AC / DC
power supply Maximum 0,6 W standby, during coin acceptance 4,5 W for approx.
100 ms
temperature range +10°C to +70 °C
humidity classification according to DIN 40040: F
max. coin sizes diameter: 30 mm
thickness: 3.3 mm
dimensions (without front plate)
height: 77.3 mm
width: 40 mm
depth: 125 mm
Options
/E extended temperature and humidity range
–20°C to +70°C, humidity classification E/D:
/I inventory impulse
/T teach mode (2 coin channels activated)
/U Potential free complete coin blocking via optocoupler to the machine
controller

wh Münzprüfer Dietmar Trenner GmbH, Germany Technical Manual EMP 500.xx v4
Version 1.51
EMP8x0.00/04/13 v4 subject to technical modification page 7/27
2. Function of the Coin Selector
2.1. Introduction
This chapter gives directions for preparing the EMP 500 v4 for programming.
Please conform to all safety precautions before making changes to the unit.
Please note that all setting / programming of our electronic coin selectors may be
carried out at the factory or by any authorised "wh Münzprüfer Service Centre."
Note: Coin operated machines, as well as coin selectors are dangerous
electrical devices. Always follow proper safety procedures when
working with electrical devices. Please turn the power off before
making or removing connections or otherwise performing work on the
unit.
This manual assumes that the wheasy 2 programming manual and the
programming software are available and that the operator is familiar with them.
References here to wheasy 2 software, are only made relative to its specific
application to the particular coin selector and its functions.
To power up the EMP 500 v4 and the associated PC interface, we strongly
recommend our N 780 power supply for this purpose. The power supply must be
set to the 12 V position for programming and testing the EMP 500 v4. The coin
selector is connected to the dongle (interface converter) with the cable provided
with the software to the N 780 power supply. The dongle is connected to an
available COM port. See figure 1.
As shown in figure 2, the coin selector may also be programmed whilst in situ and
powered by the vending machine. This procedure requires the use of the cable
K518/1800, which is not supplied with the standard wheasy kit.
Figure 1: Connection of the coin selector with the N 780 and the PC
N 780
EMP 500
N 780
K 517

Technical Manual EMP 500.xx v4 wh Münzprüfer Dietmar Trenner GmbH, Germany
Version 1.51
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Figure.2Connection between a coin operated machine (controller), an installed
coin selector and a PC
Note:Every coin selector is fully tested and configured at the factory and is
supplied ready for installation. Please make note of the factory
settings, or alternatively, read and store them on the hard disk before
making changes. The settings could be stored with a file name
incorporating the serial number. The coin selector must be “read out”
first and this procedure is explained in the wheasy 2 manual.
Please also note the information on the coin selector decal.
It is important that the coin selector be located in an upright stance
when programming. Similarly, the bottom surface of the coin selector
needs to be horizontal. This can often be achieved by mounting the
coin selector in the same manner that it is mounted in the vending
machine. Alternatively, wh Münzprüfer can provide you with a
purpose designed stand T 500.
The following sections detail each wheasy 2 related function of the coin selector.
Each function has its own chapter as listed in the table of contents in this manual.
controller
power
EMP 500
K 518

wh Münzprüfer Dietmar Trenner GmbH, Germany Technical Manual EMP 500.xx v4
Version 1.51
EMP8x0.00/04/13 v4 subject to technical modification page 9/27
2.2. Programming of Coins
There are a variety of ways in which the coin acceptance of the EMP 500 v4 may
be programmed.
The coin selector can “learn” new coin parameters, including individual tolerance
requirements, with the help of the Calibration Function. Calibration is carried out
either using the PC based wheasy 2 software or directly in the vending machine
using the Teach mode Function (see On site programming) or using whpocket for
the Palm OS®organizer.
Yet another alternative would be to transfer a previously prepared complete coin
parameter data set from the PC to the coin selector. This is commonly referred to
as the Cloning Function. This method is far less involved than calibration because
it dispenses with the time consuming task of inserting coins. A pre-requisite
however is that an approved and appropriate coin parameter data set is available.
These may be acquired via the internet from wh Münzprüfer.
The wheasy 2 cloning function also allows the transfer of a data set from a factory
set coin selector to any electronic coin selector in the same series. In this way
identical programming may be duplicated for all units, as required, especially for
new currencies.
2.2.1. Calibration
2.2.1.1. Calibration Using wheasy 2
Under the Edit pull down menu is the function “Calibration”. Pressing the <F4> key
can also directly access this window. This will bring up the following window:
Figure 3 Window for selecting the coin channel to be calibrated.
Next, a coin channel to be calibrated is selected. The coin value and currency
code for the selected channel is displayed provided that it has been written to the
file as being programmed to that channel. This is shown next to the channel
number.
Note: The coin description shown is taken from the loaded file for the
particular channel. Specifically, the correct description is shown only
if the correct file for the coin selector has also been loaded.
The calibration window is displayed only after a coin channel has been selected.
The calibration tolerance mode for the chosen channel is also shown, but this may
be changed at any time prior to pressing OK.

Technical Manual EMP 500.xx v4 wh Münzprüfer Dietmar Trenner GmbH, Germany
Version 1.51
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Figure. 4Calibration window for EMP 500 v4 coin selector
The calibration mode “fix” is intended for use with coins and coin channels for
which preset tolerance parameters are available. These parameter sets can be
seen by selecting the menu selection “Coin Overview”. Please refer to the wheasy
2 programming manual for more information, but as a general rule, “fix” provides
the best results when such information is already available.
The coin tolerances are automatically adjusted to the test coin set when “narrow”,
“average” or “broad” are chosen. This makes them particularly appropriate for the
calibration of new coins or tokens in the absence of coin data sets.
Each of the calibration ranges approximates coin acceptance as follows:
narrow approx. 95%,
average approx. 98%,
broad approx. 99%.
Obviously, the actual acceptance rate in a vending application may vary from the
figures above. The level of variation relates directly to just how the coin set used
for calibration is typical of the coins currently in circulation.
The number of inserted coins as well as the overall number of coins required is
shown in the calibration window. The total number of required coins is determined
by the data file. Calibration automatically ends once the required number of coins
have been inserted and the procedure may now be finished or another coin
channel selected for calibration.
2.2.1.2. Calibration Using the Teach Mode Function (Option /T)
The coin selector can be delivered with an optional teach mode function (on site
programming). The teach mode can be set up for a maximum of 14 channels at
the factory. No PC is required for the teach mode, since the necessary software is
built into the coin selector.
The teach mode is activated by setting the number 8 switch (left DIP switch block)
to “ON”. The number 7 switch of the same DIP switch block is used to set the
acceptance tolerance to “broad” or “narrow”. The “ON” setting selects a narrow
tolerance.
To start the calibration it is necessary to select a channel to be calibrated by
setting one channel switch to “ON”. The left DIP switch of the left DIP switch block
corresponds to channel 1 and right DIP switch of the right DIP switch block
corresponds to channel 16.