MEI CashFlow REFERENCE Series User manual

23174 G3143818044
The 520
REFERENCE SERIES
CHANGEGIVER
POCKET GUIDE
ROUTINE MAINTENANCE,
SAFETY, INSTALLATION &
TROUBLESHOOTING
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CashFlow®520 changegiver Pocket Guide
ii ,MEI., 1996
Published by :
MEI
Internet: http://www.meigroup.com
For information on translations in your country, please write to the
Technical Communications Manager at the above address.
CashFlow®520 changegiver Pocket Guide
©, MEI UK International Ltd., 1996. All rights reserved.
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 or retrieval system, or
translated into any language (natural or computer), without the prior written
permission of MEI.
MEI®, CashFlow®and the MEI device are registered trademarks.
©, MEI., 1996.
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 disclaims any liability
for any direct or indirect losses (howsoever caused) arising out of
use or reliance on this information.
This document does not necessarily imply product availability.
Part Number : 143818044
This Edition ( March 1996)

CashFlow®520 changegiver Pocket Guide
,MEI., 1996 iii
CONTENTS
Routine Maintenance
Replacing a Fuse
Using the Keypad
Troubleshooting
Using the MEIRoute Alpha 250
Terminal
Address Settings for the
MEI
Route Alpha 250 Terminal
Installing, Starting and Testing a Unit
Product Manuals and
Product Technical Training
Addresses of Regional Offices

CashFlow®520 changegiver Pocket Guide
iv ,MEI., 1996

,MEI., 1996 1
CashFlow®520 changegiver Pocket Guide
User Safety Notices
WARNING
Before cleaning, servicing, removing or replacing
CashFlow®units, ALWAYS SWITCH OFF or
ISOLATE the ELECTRICITY SUPPLY to the host
machine.
CAUTION
This guide is for use only by personnel trained to
carry out electrical installation.
Maximum Operating Voltage
Do not apply more than the voltage specified on the
unit.
Dangerous Environments
Do not operate the unit in the presence of
flammable gases or fumes, or after the entry of fluid
into the machine.
Disposal of Product
If necessary, always dispose of defective units
according to local regulations.
Conformanceto
International Standards
When installed and operated according to the
instructions provided for the particular unit,
CashFlow®products meet the applicable
international and national safety standards for any
country in which they are used.

CashFlow®520 changegiver Pocket Guide
2,MEI., 1996
Parked dispenser arms show here
Reject lever
Coin flap for manual filling
Top cover flap
Rejected coin exit
Keypad and LEDs
Coin entry cup
Acceptor module
Lid tab of acceptor
Labels showing the
coin tube positions
Coin storage cassette
release catches
Coin storage cassette
Movable float indicator
Label showing keypad functions
and operating voltage of unit
Hinge pin of acceptor
Dispenser base
Connection port for MEI
Route Alpha 250 terminal
CashFlow520 changegiver
Model number and
serial number of unit
Cashbox coins exit at rear
Coin slots for manual filling

,MEI., 1996 3
CashFlow®520 changegiver Pocket Guide
Routine Maintenance
WARNING
Switch off the power to the host
machine before cleaning the unit
Clean the coin pathway (shown shaded in the
figure) regularly with a soft moist cloth. Take care
that all the surfaces are dry before you close the lid
of the unit, particularly if you have had to clean the
unit after the entry of dirt or fluid.
Take care that no drops of water enter the unit
during cleaning.
Never use solvents or abrasive creams to clean the
unit. These will damage the surfaces.
NOTE: If you switch the machine on when
the lid of the acceptor unit is not fully closed,
coins will be rejected even if you then close
the lid.
If this happens, switch off the power to the
machine for at least 15 seconds,then close the
lid again. Make sure the lid snaps shut.
Switch the power on. Check coins are accepted.
Clean the
Lid
shaded areas

CashFlow®520 changegiver Pocket Guide
4,MEI., 1996
Cleaning the Dispenser Arms
Switch off the power to the host
machine before cleaning the unit
Squeeze together the two coin storage cassette
release catches and lift out the cassette.
Wipe the dispenser arms and their paths in the
dispenser base with a moist cloth.
Switch on power to the machine, press the mode
button twice to park the dispenser arms, and
replace the coin cassette.
Check that the two release catches snap shut.
You should only remove the dispenser and the
dispenser arms for cleaning if there is a heavy build
up of dirt or other matter in the dispenser.
Always refer to the Product Maintenance
Handbook before removing these parts.
Dispenser arms
in parked position
Clean the arms
and their paths

,MEI., 1996 5
CashFlow®520 changegiver Pocket Guide
Checking and Replacing a Fuse
Switch off the power to the host
machine before checking a fuse
Squeeze together the coin cassette release
catches and lift out the cassette.
Press down the blue release catch above the
acceptor with a small screwdriver. Pull the top of
the acceptor forward and downwards. Unplug the
exposed ribbon cable and lift out the acceptor.
The fuses are under a cover in the left hand side of
the unit. Always replace a blown fuse with one of
the same rating.
Acceptor
release catch
Coin cassette
release catches
Fuse box cover

CashFlow®520 changegiver Pocket Guide
6,MEI., 1996
Replace the acceptor onto its hinge slots,
reconnect the ribbon cable and press the acceptor
into place.
Park the dispenser arms and replace the coin
cassette.
Make sure that the release catches of the acceptor
and the cassette snap shut firmly.
Switch on power to the machine and check that the
red LED comes on.

,MEI., 1996 7
CashFlow®520 changegiver Pocket Guide
Using the Keypad
Use the keypad to park the dispenser arms,
dispense coins, set prices, float the coin tubes up or
down, and to re-set the tube counts to their pre-set
levels.
The keypad label summarises keypad functions.
Function Buttons
Dispense coins from tubes
Park the dispenser arms
Float up tubes automatically
Float down tube automatically
Reset tubes to pre-set levels
Set the vend prices
Cancel the accumulated credit
Correct voltage
for unit
Tube A
dispense Tube B
dispense
Yellow LED
Mode button
(YELLOW)
No function
Dispense
coins
Float up tube Re-set tubes
automatically
to pre-set level
Tube C
dispense
Set vend
prices
Red LED No function
A B C
or
,+
+A
+ +
A C
+ +
A B
+C
+ +
A A

CashFlow®520 changegiver Pocket Guide
8,MEI., 1996
Using the Keypad
Dispense Coins / Empty Tubes
Press a button once to dispense a coin from a
corresponding tube. If you press and hold for more
than three seconds, coins are dispensed
automatically until only a sufficient minimum (the
safe count) are left to operate the dispense
mechanism. To empty a tube or a cassette, you
may have to take out the last coins by hand.
Float-Up Tube Counts Automatically
Press the buttons, then feed tube coins through the
acceptor to refill the tubes to their pre-set float
level. When float levels are reached, further coins
are rejected. If automatic float is left by pressing B,
tube counts re-set to pre-programmed float levels.
Re-set Tube Counts
Press the buttons to force tube counts to be re-set
to their pre-set float levels. If there are not enough
tube coins to meet the pre-set levels, coin counts
remain incorrect until recalibration takes place.
Automatic Float Down to Pre-set Levels
If the unit is programmed for this function,
press the buttons to dispense coins until tube
counts reach their pre-set float levels. If the
numbers of coins already in the tubes are equal to
or below the float levels, no coins are dispensed.
Set the Vend Prices
Press the buttons. Insert coins equal to the lowest
price. Make a selection. A 45-second time-out
starts after each coin. More selections at the same
price can be made without inserting extra coins.
Add coins for the next highest price, and make a
selection. Continue until all prices are set. Press C
to cancel credit and to exit price teach.
+C
+A
+ +
A
+AC
B
ABC
, ,
+

,MEI., 1996 9
CashFlow®520 changegiver Pocket Guide
Troubleshooting
•Check cassette for coins
covering top-level sensors
•Check acceptor coin path
•Check for jams in separator
•Press Mode + Mode and
replace the cassette
•Blocker signal from
machine not present.
Check for blocker from
machine through to unit.
Check all looms.
•Is the red LED...
•Feedchangecoins
into acceptor
•Are coins routed to
the correct tubes?
•Does the red LED
stop flashing?
•Float up tubes to their
preset levels
•Press Ato return unit
to normal operation
•Is the unit’s
interface loom
firmly connected?
•Press A,B,C
•Are correct coins
dispensed?
FLASHING?
Y
N
OFF?
Y
Y
Y
Y
N
N
N
•Press Mode+Mode
•Does the yellow
LED flash?
•Press A,B,Cto
dispense coins
•Insert change coins
•Are change coins
accepted?
•Check fuses,
replace if blown
•Re-connect loom
and re-start unit
N
•Make a trial vend
to check the unit
•Check for sufficient change
coins in tubes, and for jams
in dispenser and tubes
•Press Mode twice to check
dispenser arm movement
•Check reject lever
•Refer to the
troubleshooting
table in this Guide
•Coins accepted
and red LED lit?
YN
•Make a trial vend
to check the unit

CashFlow®520 changegiver Pocket Guide
10 ,MEI., 1996
Problem Causes Actions
Red LED is on, except
when a vend is made Normal operation No action
Red LED is on but coins
are not accepted Coin jam in the changer mechanism
Lid of acceptor is open
Not enough reject lever clearance
Check for jams in the acceptor and in the tubes. Park the
dispenser arms before you replace the coin cassette.
Clear the jams, then dispense a coin to check operation. Switch
the power off, wait for at least 15 seconds, then switch on
again.
Check clearance is between 2-3mm, and adjust if necessary.
Red LED stays off No power to the vending machine
No power to the unit - loose loom or
blown fuse.
Check that the power supply to the unit is at the voltage shown
in the window on the keypad label.
Test the power supply by pressing the Mode button.
If the yellow LED flashes, the power is on.
If yellow LED stays off, switch off power to ythe machine,
and check power looms and fuses. Replace any blown fuses.
Restart the machine and check that red LED is on.
Troubleshooting

,MEI., 1996 11
CashFlow®520 changegiver Pocket Guide
Red LED stays off and all
coins are rejected No stock available for vending
Check for fault on vending machine
Blocker signal from the machine
LED or keypad fault
Faulty transformer
Check if the machine is out of stock.
If an Executive version, check the communications cable. Refer
to the Product Maintenance Handbook.
Check the keypad module. If faulty, refer to your MEI distributor.
Check the transformer. If faulty, refer to your MEI distributor.
Red LED is flashing Fault with the changegiver unit
A coin has covered the top level
sensors
A coin has jammed in the dispenser
module
Fault with the audit module
Coin cassette is unclipped
Press A,Band Cto check if coins are being dispensed. If the
red LED is still flashing, switch off the power to the machine,
wait at least 15 seconds and switch on again.
Remove the coin cassette and check the tops of the coin tubes.
Switch off the power to the machine, remove the cassette
and check the dispenser for jams. Clear any blockages and
check for damaged coins.
Check the Route Aplha audit addresses. Return unit to
distributorforrepairifnecessary.
Press the cassette into place firmly.
Problem Causes Actions

CashFlow®520 changegiver Pocket Guide
12 ,MEI, 1996
Red LED is flashing and
no coins are accepted Check Route Alpha addresses 340
to 349 for a description of the error
The cover of the acceptor is not
closed firmly
The acceptor loom is not connected
The coin path in the acceptor is dirty
Switch off power to the machine and open and close the lid
of the acceptor. Make sure the lid snaps shut firmly. Wait at
least 15 seconds and switch the power on again.
Check the acceptor loom and reconnect it if necessary.
Switch off the power to the machine and clean the acceptor.
Red LED is off, but
change coins are routed to
the cashbox and not to the
tubes
Mismatch between the true coin
count in a tube and the count being
registered by the unit
Press and hold down A,B and Cfor at least three seconds to
dispense coins down to the tube safe counts, then re-float the
tubes.
Press Mode + A + B, and insert change coins through the
acceptor until tubes reach their pre-set levels
Red LED is off
permanently, with no
other problems present
Faulty LED or keypad module Check and replace the keypad module if it is faulty. Refer to
your authorised MEI distributor.
Problem Causes Actions

,MEI., 1996 13
CashFlow®520 changegiver Pocket Guide
Yellow LED is off Normal operation No action
Yellow LED flashes when
coins are accepted Normal operation No action
Yellow LED remains off
when the Mode button is
pressed
No power supply to the vending
machine Switch off power to the machine, check all looms and check all fuses.
Replace blown fuses, following the instructions in this Pocket
Guide.
Yellow LED is flashing The changegiver is in shifted mode
because the Mode button has been
pressed
The keypad is available to change the functions of the unit.
(Press Mode or wait for 45 seconds to exit from shifted mode).
Yellow LED is off
permanently.
No other problems present
Faulty LED or keypad module Check the keypad module. If faulty, refer to your MEI distributor.
Problem Causes Actions

CashFlow®520 changegiver Pocket Guide
14 ,MEI., 1996
Poor coin acceptance Changegiver unit is not level
Modules are not mounted and
aligned correctly
Build-up of dirt in the acceptor
Blocked accept gate opto’s
Check and re-level the unit if necessary.
Check the coin entry and exit chutes of the machine are aligned
with the coin entry cup on the unit, and with the cash box on
the machine.
Adjust the modules until they are accurately aligned.
Switch off the power, check and clean the acceptor.
Check if the accept gate opto’s are blocked.
Refer to the Product Maintenance Handbook before
attempting to clean the opto’s.
Unit rejects one type of
coin or token Coin or token is inhibited
Coin or token is damaged or worn
A tube has reached its pre-set float
level, and further coins are rejected
because the unit is in float mode
Check that the coin or token is included in the coin set of the
changer, and has been enabled.
If necessary, enable the coin.
Discard the worn or damaged coin/token.
Press Ato leave float mode.
Check the tube levels, then make a vend to check that the
exact change is dispensed.
Problem Causes Actions

,MEI., 1996 15
CashFlow®520 changegiver Pocket Guide
High value coins are
rejected and the exact
change light is on
Too few coins in the change tubes,
leaving the low-level sensors
uncovered
Unit is in No overpay mode
Re-float the coin tubes through the acceptor so that the low-
level sensors are covered.
Check Route Alpha address 242.
Coins are accepted but
no credit is given Power loom is not inserted correctly
Strobes in the accept gate
mechanism are blocked or dirty
Coin jam in the separator module
(post gate strobes are covered)
Switch off power to the machine, and check the loom.
Refer to the Product Maintenance Handbook before
attempting to clean the strobes or the opto’s.
Switch off power to the machine, and check separator for
jams.
Coins are not routing
correctly The level of coins in a tube is
covering a top-level sensor
The top-level sensor loom or the
separator loom is not connected
correctly
Wrong acceptor or separator is fitted
A tube is disabled
Check tube counts. If they are above the pre-set float levels
and automatic tube inventory is set, press Mode + A + C to
float-down the coins in the tubes.
Switch off the power, remove the cassette and release the
acceptor. Check that the top-level sensor and separator looms
are fitted correctly. Replace the acceptor and cassette. Switch
on power to the unit, then insert coins and check routing.
Check that the acceptor and separator are the correct versions.
Use the Route Alpha terminal to enable the tube.
Problem Causes Actions

CashFlow®520 changegiver Pocket Guide
16 ,MEI., 1996
No coins are dispensed Levels of coins in the tubes are
below the safe count.
Dispenser loom not connected or
loose
Faulty dispenser unit
Check that change coins are available in the tubes. If
necessary, float up the tubes through the acceptor with the
correct change coins.
Switch off power to the machine and check that the
dispenser loom is fitted correctly. Refer to the Product
Maintenance Handbook.
Check that the dispenser module is operating correctly. Refer to
the Product Maintenance Handbook before you attempt to
service or replace the dispenser.
Incorrect change is
dispensed Insufficient change coins are
available
Incorrect coin values are set
If necessary, float up the tubes with the correct change coins.
Check and reset the coin values if necessary. Press A, B, and
Cto check if change coins can be dispensed.
Check that coins are being routed to the tubes correctly.
Problems in handling
coins persist after all
solutions have been tried
Faulty unit, or faulty modules Contact your MEI distributor. To help diagnosis, note the
symptoms, and the model and serial number of the unit for
reference. The numbers are on a label on the side of the unit.
Problem Causes Actions