MEI Cashflow 690 series User manual

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Copyright Statement Engineer’s Quick Reference
2 ©, MEI., 2006
CashFlow
®
690 Series Changegiver Field
Service Engineer’s Quick Reference Guide
Part No. 722773004
Version: G4
Publication date: May 2006
Published by:
MEI
Internet: http://www.meigroup.com
©, MEI UK International Ltd., 2006
Except as permitted under the relevant local legislation, no part
of this publication may be copied, transmitted, transcribed, or
distributed in any form or by any means, or stored in a database
retrieval system, or translated into any language (natural or
computer), without the prior permission of MEI.
MEI reserves the right to change the product or the product
specifications at any time. While every effort has been made to
ensure that the information in this publication is accurate, MEI
disclaim any liability for any direct or indirect losses (howsoever
caused) arising out of use or reliance on the information included
in this Quick Reference Guide.
This document does not necessarily imply product availability.
For information about the availability of translated versions of
this Quick Reference Guide, please write to the Technical
Service Manager at the above address.
CashFlow
®
and the MEI device are registered trademarks.
Copyright MEI 2006.

Engineer’s Quick Reference Contents
©, MEI., 2006 3
Contents
Contents.................................................................3
Safety .....................................................................7
National and International Standards Conformance.......7
Rated Operating Voltage.................................................7
Dangerous Environments................................................7
Product Disposal .............................................................7
Fault Finding..........................................................9
Current Status .................................................................9
Amber Light...................................................................10
Amber LED Steady........................................................11
Amber Flash x 1 ............................................................11
Amber Flashes x 2.........................................................13
Amber Flashes x 3.........................................................14
Amber Flashes x 4.........................................................15
No LED On....................................................................15
Fuse Replacement ..............................................17
Changegiver Replacement ..............................19
Before You Begin ..........................................................19
Removing ......................................................................19
Installing ........................................................................19
Installation Checks......................................................... 20
Connecting..................................................................... 20

Contents Engineer’s Quick Reference
4 ©, MEI., 2006
Module Replacement ..........................................21
Coin Tube Cassette.......................................................21
Removing....................................................................... 21
Installing ........................................................................ 21
Acceptor/Separator........................................................22
Removing....................................................................... 22
Installing ........................................................................ 23
Keypad Assembly..........................................................23
Removing....................................................................... 23
Installing ........................................................................ 24
Transformer...................................................................24
Removing....................................................................... 24
Installing ........................................................................ 25
Dispenser ......................................................................26
Removing....................................................................... 26
Installing ........................................................................ 27
Service Procedures.............................................29
Float ..............................................................................29
Float Up......................................................................... 29
Float Down..................................................................... 29
Float Teach.................................................................... 29
Float Reset .................................................................... 29
Configure.......................................................................30
Enable or Inhibit a Coin.................................................. 30
Show Channel Details.................................................... 30
Select a Euro Transition Stage (1 to 4)........................... 30
Price Teach ...................................................................30
Cassette Set..................................................................31

Engineer’s Quick Reference Contents
©, MEI., 2006 5
Group 1 Cassette........................................................... 31
Group 2 Cassette........................................................... 31
Customise a Cassette.................................................... 31
Audit ..............................................................................31
Manually Filled Coin Tube.............................................32
Empty the Coin Tubes...................................................32
Setup Procedures ...............................................33
Procedural Overview .....................................................33
Setup Configuration Options .........................................33
Functions and Variants .................................................. 33
Configuration Options .................................................... 36
Product support ..................................................41

Contents Engineer’s Quick Reference
6 ©, MEI., 2006
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Engineer’s Quick Reference Safety
©, MEI., 2006 7
Safety
National and International
Standards Conformance
CashFlow 690 Series products operate at
Safety Extra Low Voltage Level (SELV) as
defined in IEC335/EN60335 ‘Safety of
Household and Similar Appliances’. They
may be designed into equipment complying
with IEC335/EN60335 or IEC950/EN60950
‘Safety of Information Technology
Equipment’.
CashFlow 690 Series products are of Class 2
construction.
Rated Operating Voltage
The operating voltage of a CashFlow 690
Series Changegiver is stated on the product.
The Changegiver must be used with any
power source other than that indicated.
Dangerous Environments
The CashFlow 690 Series Changegiver must
not be operated in the presence of flammable
gasses, fumes or water.
Product Disposal
Do not dispose of any part of a CashFlow
690 Series Changegiver by incineration.

Safety Engineer’s Quick Reference
8 ©, MEI., 2006
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Engineer’s Quick Reference Fault Finding
©, MEI., 2006 9
Fault Finding
Current Status
The current status of the Changegiver is
indicated by the colour of the LED on the
keypad.
Red/Amber/Green (alternating) –
occurs briefly when the Changegiver
is first switched on
Green -the Changegiver is working
correctly
Green (flashing) – occurs when the
keypad is in either the Service or
Setup mode
Amber –there is a fault with the
vending machine
Amber (flashing) – the Changegiver
has a fault that can be rectified,
possibly on site
Red – there is a fault with the
changegiver acceptor module
Red/Green (alternating) – there is a
serious hardware or software fault
and that the Changegiver must be
replaced
No LED on – possible power supply
problem

Fault Finding Engineer’s Quick Reference
10 ©, MEI., 2006
Amber Light
The amber light may be steady or flash in a
sequence of from one to four flashes. At the
same time, an error message is displayed on
the LCD display “A”.
The number of flashes identifies the problem
module as indicated below.
1 Discriminator 2 Acceptor
3 Separator 4 Dispenser
A LCD Display
x2
x3
x4
x1
A

Engineer’s Quick Reference Fault Finding
©, MEI., 2006 11
Amber LED Steady
Displayed message: “Inhibited by VMC”
Problem: vending machine not
communicating with the Changegiver
Effect: no coins accepted
Possible causes:
1Faulty connection to the vending
machine
2No merchandise available
3Jammed or faulty merchandise dispenser
4Vending machine controller problem
Action to take:
1Check the loom connecting the
Changegiver to the vending machine is
secure
2Reset the power
3If appropriate, replenish the vending
machine
Amber Flash x 1
Four messages can appear as follows:
Displayed message: ”Coin Jam”
Faulty module: discriminator
Effect: no coins are accepted
Possible cause: coin jam

Fault Finding Engineer’s Quick Reference
12 ©, MEI., 2006
Action to take:
1Check for a coin jam
2Check that the reject lever mechanism is
functioning freely
3Check there is clearance between the
Changegiver and vending machine
escrow levers
Displayed message: ”Clean-Me”
Faulty module: discriminator
Effect: coin acceptance decreased to below
an acceptable level
Possible cause: dirty coin paths
Action to take: clean the coin paths. On the
keypad, press Mode A✔
✔✔
✔Mode to stop the
LED flashing
Displayed message: ”Escrow pressed”
Faulty module: discriminator
Effect: No coins accepted
Possible cause: Escrow jammed open;
reject lever stuck
Action to take:
1Check flight deck
2Check Changegiver escrow lever is
functioning freely
3Check escrow mechanics of the vending
machine are functioning freely
4Check there is clearance between the
escrow lever on the Changegiver and the
lever on the vending machine

Engineer’s Quick Reference Fault Finding
©, MEI., 2006 13
Displayed message: ”Coin Sensor Error”
Faulty module: discriminator
Effect: no coins accepted
Possible cause: electronics error
Action to take:
Switch the power off and then on again. If the
fault does not clear, replace the Changegiver
Amber Flashes x 2
Message: ”AGM error”
Faulty module: acceptor (accept gate)
Effect: coins not accepted
Possible cause: coin jam or debris in the
accept gate area
Action to take:
1Open the acceptor and clear the jam
2Check the acceptor gate mechanism is
clean and there are no coins holding the
gate
3Close the acceptor – be sure to close it
fully

Fault Finding Engineer’s Quick Reference
14 ©, MEI., 2006
Amber Flashes x 3
Error message: ”Separator error x” (x can
be A, B, C or D)
Problem module: separator
Possible causes: coin jam at the top of a
coin tube; dirty cassette; cassette not
properly in place; dirt on the top-level sensor;
cassette not assembled correctly
Action to take:
If possible, remove the coin tube cassette,
clear the jam and/or clean the sensor, and
then replace the cassette
If you cannot remove the cassette, the cause
is likely to be a coin jam at the top of a tube.
To free the jam:
1Remove the Changegiver
2Lay the Changegiver on its back until the
jammed coin slides back into the
separator. You can then remove the
cassette to check there are no other
jammed coins
3Check the screws at the top of the coin
tubes are fully tightened
4Clean the top-level sensor if necessary
5Reinstall the cassette
6Reinstall the Changegiver

Engineer’s Quick Reference Fault Finding
©, MEI., 2006 15
Amber Flashes x 4
Error message: ”Dispenser error.x” (x can
be A, B, C or D)
Problem module: dispenser
Effect: no change given; faulty tube is
usually disabled
Possible cause: coin jam at the bottom of
the indicated coin tube; loom incorrectly fitted
Action to take:
1Remove the coin tube cassette
2Free the jam
3Check the loom is fitted correctly
4Press the Mode key twice to park the
dispenser arms
5Replace the cassette
No LED On
If the LED on the keypad does not come on
at all:
1Visually check the power supply to the
vending machine – there may be a
power-on light or other indication
If there appears to be a power supply
problem, tell the operator to contact an
electrical service engineer
2Check the cable connection between the
Changegiver and the vending machine is
secure

Fault Finding Engineer’s Quick Reference
16 ©, MEI., 2006
If the vending machine has power, and
the cable connection is satisfactory, the
Changegiver fuses may be blown - see
the following section.

Engineer’s Quick Reference Fuse Replacement
©, MEI., 2006 17
Fuse Replacement
1Remove the cassette
2Lower the acceptor/separator - steps A
and B below
3Push the fuse cover downwards to
unlatch it and then pull it forward – step
C
4Replace the fuse(s)
5Close the fuse cover
6Replace the acceptor/separator
7Replace the cassette
B
A
C

Fuse Replacement Engineer’s Quick Reference
18 ©, MEI., 2006
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Engineer’s Quick Reference Changegiver Replacement
©, MEI., 2006 19
Changegiver
Replacement
Before You Begin
1TURN OFF THE POWER SUPPLY TO
THE VENDING MACHINE
2Check the voltage of the replacement
Changegiver is the same as the vending
machine voltage
Removing
1Disconnect all the cables connecting the
Changegiver to the vending machine –
there may be comms and display cables
as well as the electrical cable
2Undo the single retaining screw, right-
hand position
3Lift the Changegiver off the location
screws or studs
Installing
1Locate the Changegiver on the screws or
studs
2Replace the retaining screw

Changegiver Replacement Engineer’s Quick Reference
20 ©, MEI., 2006
Installation Checks
1Check there is
clearance at
dimension X. The
Changegiver lever
must be able to lift to
its fully open position
2Check the alignment
of the coin chutes.
Insert two coins of
each type into the
vending machine
and check that
they cleanly enter
the Changegiver
acceptor and exit
from the
Changegiver into
the cash return cup
Connecting
1Plug in the power cable. Only one of the
end connectors will match the socket on
the vending machine. If there are sockets
for comms and display cables, there will
be cables with matching connectors fitted
to the Changegiver. Plug then in
2Tuck the unused cables away tidily.
Make sure they will not be trapped when
the vending machine door is closed
3Switch on the power and check that the
keypad LED settles to green. If it does
not, refer to Fault Finding on page 9.
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x