Electronic Systems Design 110100-A Scheda tecnica

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ESDI Model 110100-A

MDB MultiPrice Water Vend Controller

Operation and Installation Manual

(Also see Programming & Service Manual)

WARNING ! ELECTRICAL SHOCK HAZARD !

AUTHORIZED PERSONNEL ONLY.

EXPOSED 120 VAC ON CIRCUIT BOARD.

THE CIRCUIT BOARD HAS MANY EXPOSED AREAS

THAT ARE AT 120 VAC. CONTACTING ANY OF THESE AREAS

CAN CAUSE BODILY HARM OR DEATH.

DISCONNECT POWER BEFORE SERVICING

AND MAKING ANY CONNECTIONS

December 01, 2020

By: M. A. Stern

Electronic Systems Design, Inc.

1010 North Maclay Ave., San Fernando, California 91340 USA

Phone: (818) 365-0864 Fax: (818) 365-1308 Web Site: www.esdi.net

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Table of Contents

OPERATING INSTRUCTIONS & FEATURES

1.0. General Description: Page 4

2.0. Controller Features: Page 4-5

2.1. Maximum Run Timer

2.2. Metered or Timer Controlled Vend

2.3. UV Flush Options

2.4. Pause Option

2.5. Bottle Rinse Option

2.6. Door (Nozzle Cover) Option

2.7. Lockout Option

3.0. Modes of Operation: Page 5-6

3.1. Water Vending Machine –The Basic Machine

3.2. Water Vending Machine –With Bottle Rinse Feature

3.3. Water Vending Machine –With Start / Pause Feature

3.4. Water Vending machine –With Door Feature

4.0. Payment Transaction: Page 6-8

4.1. Credit Accumulation

4.2. Display Activity

4.2.1. Idle State

4.2.2. Switch Echo

4.2.3. Vend Process

4.2.4. Change Payment

4.2.5. Use Correct Change LED

4.2.6. Power-Up and Reset Initialization

4.3. Internal Vend and Cash Counters

4.4. Free Vend

4.5. Switch Selections

INSTALLATION & WIRING

5.0. Electrical Specifications: Page 8

5.0.1. Coin / Bill Acceptor Interface

5.0.2. Relay Outputs

5.0.3. Water Sensor Interface

5.0.4. Vend Accuracy / Repeatability

5.0.5. Power Requirements

5.0.6. Circuit Board Assembly Size

5.0.7. Operating Temperature

5.0.8. Storage Temperature

5.0.9. Relative Humidity

5.1. Inputs: Page 8-10

5.1.1. Flow Meter Input

5.1.2. Low Water (Low Pressure) Input

5.1.3. Lockout Input (UV Shut Down)

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5.1.4. Vend Switch Input

5.1.4.1. Vend Switch with Pause Option

5.1.5. Bottle Rinse Switch Input

5.1.6. Selector Switch Inputs

5.1.7. Power Input

6.0. Outputs: Page 10-11

6.1. Pump Relay Output

6.2. Credit Lamp Relay Output

6.3. Bottle Rinse Valve Output

6.4. Door Relay Output

7.0. Connectors: Page 11-12

7.1. TB1 Control Inputs

7.2. TB2 Control Outputs

7.3. TB3 Power Input and Output –24VAC

7.4. Display Board

7.5. J5 Remote Display Board (Optional)

7.6. J3 Comm Port (Optional)

7.7. TB11 Slave Board Interface

SETUP & PROGRAMMING

8.0. Switches & Indicators: Page 12-14

8.1. Reset Switch

8.2. Free Vend Switch

8.3. No Vend Switch

8.4. Program Switch

8.5. Calibrate Switch

8.6. Vend Quantity Calibration Procedure

8.7. Program Mode

8.8. Power Indicator

8.5. System Status Display

9.0. Options (DIP Switch Selectable): Page 15

9.1. Flow Meter/Internal Timer Selection

9.2. UV Flush Cycle Option Enable

9.3. Rinse Bottle Option Enable

9.4. Door Option Enable

9.5 Pause Mode Option Enable

9.6 Lockout Mode

10.0. Trouble Shooting:

See separate ESDI Model 110100 Programming and Service Manual

Radiated Frequency Protection:

It is recommended that the controller board be shielded from radiated frequencies using a metal

cover. It is further recommended that service personnel or persons gaining access to the

internals of the machine, observe proper ESD control measures to prevent damage to the

machine. It may be necessary for the OEM to place a line filter in the machine if external or

internal sources cause conducted noise levels.

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MDB MultiPrice Water Vend Controller

ESDI Model 110100A Installation & Operation Manual

Operating Instructions & Features

1.0. General Description:

The ESDI Model 110100A MDB MultiPrice Water Vend Controller is an electronic assembly that

controls all of the functions necessary to operate an unsupervised bulk water vending machine. It

is designed to vend six (6) volumes of water, each having its own price. The six volumes are

easily set by the user during a calibration procedure. The Model 110100A interfaces to any

payment device that is in compliance with NAMA's "International Multi-Drop Bus Interface

Standard" (October 19, 1993), such as the COINCO 9302-GX coin changer, bill acceptors,

prepaid cards, and credit cards.

A display provides visual feedback to the customer through a four digit 7-segment LED’s, and two

discrete LED's that indicate "Use Correct Change", and "Make Alternate Selection". This display

is on a separate circuit board that mounts to the front of the machine.

An additional single digit display located on the ESDI 110100A control board provides feedback to

the technician on the operation and status of the controller.

The ESDI 110100A is expandable up to 12 products, and with the use of additional water vending

slave boards, can control up to 4 vend stations using a single coin mech and bill acceptor. Each

slave board vends an additional three products, so the 12 inputs can be grouped as 4 vendors,

each vending 3 volumes of water. Please see data sheet or web site for a variety of vending

possibilities & options.

2.0. Controller Features:

2.1. Maximum Run Timer:

The controller has an internal maximum run timer for the water vending only. It is factory set to

approx. 90 seconds beyond the normal vending time. If this time is exceeded, the controller will

stop vending, go "Sold Out", and will not accept coins. The Status Display will indicate "E". A

manual reset (power off, wait 5 seconds, then power on) will restart the controller.

If the Maximum run time is exceeded, and the Low Water switch is active at that time, the

controller will reset itself automatically 10 minutes after the Low Water switch has become

inactive.

2.2. Metered or Timed Controlled Vending Options:

This controller allows the option of using either an inline water flow sensor, or an on-board timer to

accurately control the amount of water. The board can accommodate many types of flow

sensors, however, the maximum pulse count for a single vend is 65,535 counts, and the

maximum vend time is 7 minutes.

By far the best method for achieving accurate vending is to use an inline water flow sensor.

However, it is possible to get accurate vending using the internal timer, as long as the water flow

remains constant throughout the entire vending cycle.

2.3. UV Flush Option (Hot Water Removal):

An optional UV flush cycle is provided to periodically discard hot water that is left standing in the

UV lamp assembly, and refresh the vending system in general. This water is discharged out the

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vend nozzle and into the drain. The flush cycle runs for a period of 3 seconds. When enabled, a

flush cycle will occur as follows:

Upon each power-up and manual reset.

Upon returning from a Low Water condition.

Upon returning from a Lockout condition.

Periodically, every 30 minutes after the last vend.

The flush cycle will not run if there is credit pending, if the system is in the process of vending

water, during a Lockout condition, a Low Water condition, or a UV Lamp failure. During the flush

cycle, the controller will go "Sold Out" and will not accept any coins. The Status Display will

indicate "F" during the flush cycle. The flush cycle runs for a period of 3 seconds.

2.4. Pause Option (Stop & Continue):

When the Pause option is selected, the Vend switch will also serve as a Pause switch. When this

option is selected, pressing the Vend switch during vending will cause the vending to stop for a

period of up to one minute. If the Vend switch is again pressed within one minute, vending will

continue. If one minute is exceeded, vending will terminate, and reset. The pause can be used

intermittently until the selected volume of water has vended.

2.5. Bottle Rinse Option:

The Bottle Rinse option provides the ability to offer your customers a Bottle Rinse prior to filling

their bottles. This Bottle Rinse switch becomes enabled after purchase credit has been received,

and the selection has been made. This switch will become disabled after the bottle rinse cycle has

completed, or after a vending cycle has begun.

Upon activating the Bottle Rinse switch, the Rinse valve relay will turn on and the pump will start.

The amount of water used for the rinse cycle is approx. equal to 1/16th of the selected volume of

water that is being purchased. The amount of 1/16th volume is automatically calculated for each

item during the calibration process and stored in memory. When using a separate Rinse Valve,

the AUX output will be used to control the Vend Valve. When not using a separate Rinse Valve,

the Vend Valve will connect to the pump output.

2.6. Door Option : (Not available on Model 110100A-Master/Slave Controller)

The Door option is for vending machines using a door to cover the water vend nozzle. If the Door

option has been selected, the door relay will activate two seconds before the pump starts, and

reset one second after the pump stops. This is not available on the Master control board, as that

board uses this output to set the calibration mode on the Slave boards.

2.7. Lockout Option :

This option works with the Lockout input. If selected, and a lockout condition occurs, the

controller will stop any vending immediately and go to lockout. The controller will NOT

automatically reset and will require a manual reset from a technician. This is normally the option

used when a UV Lamp, or Flood Switch controls lockout. This option is provided because a bad

UV lamp can flicker on and off many times thus becoming unreliable. The same can happen with

a Flood Switch, which can also open and close frequently.

3.0. Modes of Operation:

3.1. Water Vending Machine –The Basic Machine:

1. Customer deposits money.

2. Customer presses Selection Switch, selecting water volume and price.

3. Money balance is shown on display.

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4. The “Start Vend” switch will illuminate. (If used)

5. Customer presses the “Start Vend” switch. Without this switch, vending will begin

upon making selection.

6. The “Start Vend” switch illumination will turn off. (If used)

7. The Vend Valve & Pump will turn on and run until the proper amount of water has

vended.

8. If there is still a money balance, an additional selection can be made, or the coin return

button can return the balance in coins.

3.2. Water Vending Machine –With Rinse Feature:

1. Customer deposits money.

2. Customer presses Selection Switch, selecting water volume and price.

3. Money balance is shown on display.

4. “Rinse” switch and “Vend” switch will illuminate.

5. Customer presses one of these switches. “Rinse" if he wants to rinse out his bottle, or

“Vend” if he does not want a rinse and wants to proceed with the vending.

6. If Rinse is selected, the Rinse Valve & Pump will turn on and dispense an amount of

water equal to 1/16th the volume being purchased.

7. Customer swirls water around bottle and pours out into the drain. Or, a separate rinse

nozzle placed at the bottom will allow water to shoot up and automatically drain

when the bottle is placed upside down in the vending area.

8. Customer returns bottle to vend station & presses “Vend” switch to proceed with vend.

9. The “Rinse” and “Vend” switch illumination will turn off.

10. The Vend Valve & Pump will turn on until the proper amount of water has vended.

11. If there is still a money balance, an additional selection can be made, or the coin

return button can return the balance in coins.

3.3. Water Vending Machine –With Start/Pause Feature:

1. Customer deposits money.

2. Customer presses Selection Switch, selecting water volume and price.

3. Money balance is shown on display.

4. The “Start/Pause” switch will illuminate.

5. Customer presses the “Start/Pause” switch.

6. The “Start/Pause” switch illumination will turn off.

7. The Vend Valve & Pump will turn on and run until the proper amount has vended.

8. If during the vending cycle the customer presses the “Start/Pause” switch, the Vend

Valve & Pump will turn off and remain off for one minute before resetting.

9. The “Start/Pause” switch will again illuminate.

10. If during one minute pause the customer presses the “Start/Pause” switch, the Vend

Valve & Pump will turn on and run until the proper amount of water has vended.

11. The “Start/Pause” switch illumination will turn off.

12. This can be repeated multiple times until the proper amount of water has vended.

13. If there is still a money balance, an additional selection can be made, or the coin

return button can return the balance in coins.

3.4. Water Vending Machine –With Door Feature:

1. The nozzle door will open one (1) second before the pump starts, and will close three

(3) seconds after the pump stops. A Door Switch input provides feedback to

report the door is open and it is safe to vend.

4.0. Payment Transaction:

4.1. Credit Accumulation:

Credit may be accumulated through a coin changer, bill acceptor or card reader mechanism.

Card reader credit cannot be mixed with coin and bill credit during a single transaction or vend.

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Credit acceptance will be disabled when the accumulated credit equals or exceeds the highest

priced item. Cash box coins and bills are enabled on an individual basis according to the

inventory coins available. Cash box coins and bills will be enabled if the coinage currently held in

the changer's inventory tubes is greater than the coin or bill to be accepted, plus the credit

currently accumulated by the controller.

If all of the configured selections are sold out, credit acceptance will be disabled, “No Sale” will

flash on the display. If the amount of card credit available exceeds the maximum displayable

credit (dependent on the scale factor), the maximum credit will be displayed.

4.2. Display Activity:

4.2.1. Idle State:

The display will show “0000”when no switch or vend activity is present. Program switch must

be ON for coins to be manually ejected from changer tubes.

4.2.2. Switch Echo:

When a selection switch is pressed the display will show the price of the selected item.

4.2.3. Vend Process:

After a switch entry is made the controller will determine if sufficient credit is available and the

status of the selection. If the accumulated credit is greater than or equal to the selection price and

the selection is available, a selection attempt will be made for that selection. If credit is less than

the selection price, the price will be displayed for 3 seconds or until a new selection switch is

pressed. If the selection is not available “No Sale” will flash for 2 seconds along with the "Make

Alternative Selection" LED, or until a new selection is made.

4.2.4. Change Payment:

A least coin payout algorithm will be implemented. Program switch must be ON for coins to be

manually ejected from changer tubes.

4.2.5. Use Correct Change LED:

If the level of the changer's least value coin tube is below the lowest sensor, the "Use Correct

Change" LED will be illuminated continuously.

4.2.6. Power-Up and Reset Initialization:

Following a power-up, or reset condition, the display will test all of the LED segments by displaying

patterns. This will continue until the peripherals and controller have been initialized.

4.3. Internal Vend and Cash Counters:

Following a successful vend, the vend counter will be incremented by one and the cash counter

will be incremented by the price of the selection vended. Counter rollover occurs at 99,999,999

and $999,999.99 respectively. (Note: Test vends are not included in the counter totals.)

4.4. Free Vend:

The "free vend" option allows the customer to free vend items in the machine with no credit input.

The message "FrEE" will be shown on the display and all credit acceptance will be disabled

whenever the "free vend" option is enabled. Disabling the "free vend" option will return the

controller to the normal sales mode.

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Installation & Wiring

5.0 Electrical Specifications:

5.0.1. Coin / Bill Acceptor Interface: NAMA Multi-Drop Bus Protocol

COINCO 9302-GX, or equal

5.0.2. Relay Outputs (All): Any Voltage up to 120 VAC, 3 Amps Max.

5.0.3. Water Sensor Interface: GEMS Turbine Flow Sensor, FT-110,

Part No. 173935 (3800 Pulses per Gallon).

5.0.4. Vend Accuracy / Repeatability: 0.5 %.

5.0.5. Power Requirements:

Board & MDB Peripheral: 24 VAC, 60/50 Hz, 2.5 Amp Nominal.

(Note some MDB peripherals may require more current, up to 4 Amps max)

Vend Pump & Valves: 24-120 VAC 60/50 Hz, 3 Amps Max.

Operating Voltage Range: 22 VAC - 32 VAC, 50/60 Hz.

Power Transformer: 120VAC, 60/50 Hz Input, 24VAC Output

5.0.6. Circuit Board Assembly Size: 7.5" X 7.5".

5.0.7. Operating Temperature: 32° F to 150° F (0° to 65° C)

5.0.8. Storage Temperature: -22° F to 167° F (-30° to 75° C)

5.0.9. Relative Humidity: 20% to 95% non-condensing

5.0.10 Fuse (F1): Board Fuse, 3 Amp SloBlo, 24VAC, Type 5X20 mm.

5.1. Inputs:

All inputs must be isolated contact closures. DO NOT APPLY ANY EXTERNAL VOLTAGES TO

INPUTS, OR BOARD MAY BE DAMAGED.

5.1.1. Flow Meter/Sensor Input: (Leave open if not used)

Used for metered vend only. This input is for an external inline water flow sensor. As water

passes through the flow sensor it sends out pulses. The controller counts these pulses and

compares it to the calibrated amount predetermined in memory. The controller can accommodate

many different types of water meters, however, the maximum count per a single vend is 65,535

counts. One that works very well is the GEMS Turbine Flow Sensor, FT-110 Series, P/N 173935

(3800 Pulses per Gallon max). Power in the form of +5VDC is provided to power the flow sensor.

5.1.2. Low Water (Low Pressure) Input:

Is there water to vend? This input is connected to a water level sensor located at the lowest level

of the reservoir. We recommend that the level sensor be placed such that there is at least 5

gallons of water remaining. If a low water condition is detected when the controller is idle, the

controller will go to "No Sale", and will not accept coins. If a low water condition is detected while

vending, the controller will complete the vending and go "No Sale". The controller will

automatically reset when the low water condition is no longer present. An open circuit on this input

indicates a low water condition. If Option switch 8 "Option 2" is on, low water will shut down all

vend stations until water is present, otherwise only the Master board will shut down..

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5.1.3. Lockout Input (UV Shut Down):

Is UV lamp working? The lockout input allows an external device to disable the controller, such as

an external water purity monitor, a flood switch, UV lamp, or any other device supervising the

controller operation. A contact closure on this input will allow the controller to operate normally

and an open will disable the controller. If this input is not used, place a jumper between Lockout

and Common.

The Lockout mode switch controls how this input will operate.

In the OFF position: If a lockout condition occurs while the controller is vending, it will first

complete the vending and then go to lockout. If a lockout condition occurs when the controller is

idle, it will lockout immediately. The controller will automatically reset and be ready to vend when

the lockout is no longer present.

In the ON Position: If a lockout condition occurs, it will stop any vending immediately and go to

lockout. The controller will NOT automatically reset and requires a manual reset from a

technician. This is normally the position when a UV Lamp, or Flood Switch controls lockout.

When the controller is in lockout, it will go "Sold Out" and will not accept any coins. The Status

Display will indicate "U" when in lockout.

For UV lamp monitoring, choose a UV lamp assembly with an internal circuit that monitors the

lamp and has an isolated relay output to indicate a failure. This relay output should be connected

to the Lockout Input, or in series with any other lockout device. Contact closure = UV good.

5.1.4. Vend Switch Input:

The Vend Switch Input is connected to a switch on the front of the machine. This switch is used

to start vending. This switch becomes enabled after money is placed in the machine, and the

selection has been made. If you want the machine to vend immediately upon making the

selection, and do not want to use the Vend Switch, then simply turn ON Option switch "Option 1".

For calibration purposes, connect the "Vend SW" output located at TB11-1 on the rear of the

board to the "Vend Sw" input located on the front of the board. The Selection switch will act as

the vend switch during calibration, and vending will begin upon making selection. This connection

can remain in place. The Vend Switch is required for the Bottle Rinse Cycle and Pause options.

5.1.4.1. Vend Switch With Pause Option:

When the Pause option is selected, the Vend switch also serves as a Pause-Continue switch.

With the Pause option enabled, pressing the Vend switch during vending will cause the vending to

stop for a period of one minute. If the Vend switch is again pressed during the Pause, vending will

continue. If one minute is exceeded, vending will terminate, and will not continue. The pause can

be used intermittently until the selected volume of water has vended.

5.1.5. Bottle Rinse Switch Input: (Leave open if not used)

The Bottle Rinse Switch input is connected to a switch on the front of the machine. This switch is

used to start a rinse cycle, if the rinse cycle option has been selected. This switch becomes

enabled after money is placed in the machine, and the selection has been made. The user has

the choice of proceeding with a bottle rinse prior to starting the vending of water, or ignoring the

rinse cycle and going straight to the vending. A Rinse Valve relay output is provided to operate a

separate Rinse valve, directing the water through a separate nozzle. If a separate rinse nozzle is

not used the rinse water will come from the same vend nozzle. This switch will become inactive

after the bottle rinse cycle has completed, and after a vend cycle.

The optional bottle rinse cycle works as follows. Upon activating the Bottle Rinse Switch, the

Rinse Valve Relay will turn on and the pump will start. The pump will operate for a period of time

and then stop.The amount of water dispensed during the rinse cycle is approx. 1/16th of the

volume of water being purchased. This amount is automatically determined by the controller.

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5.1.6. Door OK Input: (Not available on Model 110100A-Master/Slave Controller)

Marked “Door OK” this input is presently setup as the Door Position input when used in

conjunction with the Door option. A contact closure on this input indicates that the door is “open”

and it is safe to turn on the pump. This input is ignored when the Door option is off. If not used

for the door position, it can be factory programmed to serve another purpose. Contact factory for

more information.

5.1.7. Selector Switch Inputs:

The product selector switches are located on the back of the control board, connector TB10. The

selector switch inputs select the water product and volume for vending. A contact closure to

“Switch Output” on any of these inputs will select that product. The switches are as follows:

Selection Sw: Conn-Pin Description:

Item 1 TB10-1 Vend Volume 1 Station 1

Item 2 TB10-2 Vend Volume 2 Station 1

Item 3 TB10-3 Vend Volume 3 Station 1

Item 4 TB10-4 Vend Volume 4 Station 1

Item 5 TB10-5 Vend Volume 5 Station 1

Item 6 TB10-6 Vend Volume 6 Station 1

Item 7 TB10-7 Vend Item 7 Need slave Bd.

Item 8 TB10-8 Vend Item 8 Need slave Bd.

Item 9 TB10-9 Vend Item 9 Need slave Bd.

Item10 TB10-10 Vend Item 10 Need slave Bd.

Item11 TB10-11 Vend Item 11 Need slave Bd.

Item12 TB10-12 Vend Item 12 Need slave Bd.

Sw Common TB1-Pin 11 Selector Switch Common*

Connect one side of each selector switch to the appropriate input and the other side to “Selector

Switch Common”located at TB10-13 & TB10-14, and also located on the front of the board. *Do

not connect any of these switches to regular “Common”. Each switch must be an isolated

momentary pushbutton type, suitable for low current operation.

5.1.8. Power Input:

This input should be connected to a 24 VAC transformer. Operating voltage range is 22 VAC - 32

VAC, 2.5A Minimum, 50/60 Hz. The transformer should be mounted outside the enclosure to

prevent excess heat inside the enclosure.

6.0. Outputs:

All outputs are controlled by normally open relays. These relays have normally open (NO)

contacts with uncommitted power sources. Connect one side of the relay to the power source

HOT, and the other side of the relay to the device being switched. Connect the power source

NEUTRAL directly to each device being switched. The relays are rated for 120VAC, 3 amps

maximum.

6.1. Pump Relay Output:

This output will connect to either a vend pump, or a vend valve, or both. It will turn ON at the

beginning of vending, or rinse cycle, and turn OFF when the vending is completed.

6.2. Credit Lamp Relay Output:

This output will turn ON after the board has received money and a selection has been made. This

indicates that credit has been accepted and either vending, or rinse cycle will proceed. This

output will remain ON until a vend cycle begins then it will turn OFF. This output can be used to

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