EWS ES 2050 Manuale utente

Electronic Controllers for water softening units

Instruction Manual

ES 2050

ES 2051

Software version 4.01

CONTENTS

System Description................................................................................................................................. 1

Wall mounted ES 2050, Panel mounted ES 2051 ................................................................................. 2

Status and Regenerationmessages....................................................................................................... 3

LED-display....................................................................................................................................... 3

LED - control lamps........................................................................................................................... 3

LCD - display..................................................................................................................................... 3

Service status............................................................................................................................... 3

Regeneration status..................................................................................................................... 4

Changing and indication of programme values...................................................................................... 5

Hardness of the water supply............................................................................................................ 5

Current Time...................................................................................................................................... 6

Information DISPLAYS...................................................................................................................... 6

Flush period.................................................................................................................................. 6

Regeneration time........................................................................................................................ 6

Additional program....................................................................................................................... 7

Unit capacity................................................................................................................................. 7

Treated water produced............................................................................................................... 7

Inputs............................................................................................................................................ 8

Outputs......................................................................................................................................... 8

Service - Telephone number........................................................................................................ 8

Maintenance................................................................................................................................. 8

Software version........................................................................................................................... 8

Alarms / warnings................................................................................................................................... 9

Programmed capacity exceeded....................................................................................................... 9

Electrical supply failure.................................................................................................................... 10

Refill chemical tank.......................................................................................................................... 10

Await regeneration........................................................................................................................... 11

Pre contact (regeneration pre initiation warning) ............................................................................ 11

Minimum inter regeneration time limit ............................................................................................. 12

Minimum/maximum programmed value exceeded ......................................................................... 12

Message: Maintenance ................................................................................................................... 12

Manual regeneration initiation .............................................................................................................. 13

Remote control ..................................................................................................................................... 14

"water meter" Signal input............................................................................................................... 14

"chemicals low" Signal input............................................................................................................ 14

"await " Signal input......................................................................................................................... 14

"start" Signal input........................................................................................................................... 15

"duty changeover without regeneration" Signal input...................................................................... 15

Special functions................................................................................................................................... 16

Duty changeover without regeneration ........................................................................................... 16

Regeneration of the standby unit .................................................................................................... 16

Regeneration stop............................................................................................................................ 16

Fast program facility........................................................................................................................ 17

Flush ON/OFF................................................................................................................................. 17

Regeneration without counter Reset............................................................................................... 17

Setting and changing of initial values................................................................................................... 18

1. Duty changeover........................................................................................................................ 19

2. Pre service regeneration............................................................................................................ 19

3. Prohibited regeneration period................................................................................................... 20

Start on real time clock............................................................................................................... 21

4. Time controlled regeneration ..................................................................................................... 22

5. Minimum time between regeneration’s ...................................................................................... 23

6. Water meter................................................................................................................................ 24

7. Flow-pulse.................................................................................................................................. 24

8. Incoming water supply hardness................................................................................................ 25

9. Exchange capacity..................................................................................................................... 26

10.Pre regeneration signalling ........................................................................................................ 27

11.Number of valve switching pulses.............................................................................................. 28

12.Electrical control......................................................................................................................... 28

13.Pulse timing................................................................................................................................ 30

14.Regeneration times.................................................................................................................... 31

15.Additional programme

(Regeneration-additional programme, flushing, high pressure pump) ...................................... 32

16.Alarm and warning relay outputs................................................................................................ 35

Capacity exceeded........................................................................................................... 35

Power supply failure......................................................................................................... 35

Refill chemical tank.......................................................................................................... 36

Await regeneration........................................................................................................... 36

17. Input "WAIT".............................................................................................................................. 36

18.“Start” input................................................................................................................................. 37

19.Service........................................................................................................................................ 37

Typical installation diagram.................................................................................................................. 38

Remote monitoring control ................................................................................................................... 38

Typical Electrical wiring diagrams ........................................................................................................ 39

Electrical connection details................................................................................................................. 41

Installation recommendations and commissioning............................................................................... 42

Technical specifications........................................................................................................................ 43

Declaration of conformity...................................................................................................................... 44

ES 2050/51 System Description 1

System Description

The ES 2050 (wall mounted) and ES 2051 (panel mounted) controllers are designed for the monitoring

and control of simplex (single exchange column) and duplex (twin exchange columns) water softener

installations.

Whilst a simplex installation can not provide softened water to service when the exchange column is in

regeneration, a duplex installation is capable of providing treated water from one column whilst the other

is being regenerated. Duplex plants can be operated either in duty/standby mode (one unit in service,

the other either in regeneration or waiting to be called into service), or in parallel mode (both units in

service except when one is regenerating). The regeneration of an exchange column is effected either by

one central control valve or by means of a pilot system controlling individual valves.

Regeneration is usually initiated after a measured volume of water has passed through the plant, this

volume is automatically calculated when the exchange capacity and the feed water hardness are

programmed into the controller. Alternatively the regeneration cycle may also be initiated either, after a

predetermined time period, or, by the operation of an external contact e.g. hardness monitoring

equipment, or, push button, or, based on the real time clock. Because, particularly with simplex plants,

there can be periods of the day when regeneration would be undesirable, e.g. periods of high demand,

the control can be programmed so that regeneration cannot take place between certain times. When this

postponed regeneration facility is in use, any initiation signal is stored and a display indicates the earliest

time at which the already initiated regeneration cycle may commence.

An external contact may be used to:

a) inhibit or abort a regeneration cycle

b) open or close the service valve.

In order to prevent microbiological degradation of the unit due to prolonged periods of non operation, the

stand-by unit of a duplex water softener installation can be regenerated immediately prior to being put

into service.

A minimum time interval between successive regeneration cycles may be set, thus allowing brine

systems to recover between regeneration’s, if necessary.

Five volt free relay contacts are available for control of valves, pumps, lamps, etc. or can be used for

remote monitoring.

1. Additional programme relay (programmable):

a) available before, during or after part of the regeneration cycle.

b) can be used to open a dump valve flushing the plant to drain each time a pre-set

volume of treated water has been produced.

c) allows control of a valve or pump during the regeneration or service.

2. Regeneration relay:

Contact available during the regeneration cycle.

3. Flow pulse relay (programmable):

a) repeats the contact of the water meter for remote monitoring of water use.

b) used to control the fill valve of the chemical tank.

4. Warning relay:

Programmable warning contact.

5. Alarm relay:

Programmable fault contact.

ES 2050/51 Wall mounted ES 2050 2

Panel mounted ES 2051

Wall mounted ES 2050

1 Service unit 1 8 Position cursor 15 Numerical input

2 Regeneration unit1 9 Supply water hardness 16 Programming

3 Alarms 10 Next program 17 service unit 2

4 Warnings 11 Real Time 18 LED Display

5 Fuse 12 Previous program 19 Regeneration unit 2

6 Main switch 13 Unlock 20 LCD display

7 Regeneration start 14 Information

Panel mounted ES 2051

ES 2050/51 Status and regeneration messages 3

Status and Regeneration messages

LED - display.

m³

Whilst a unit is in service the LED - display indicates the remaining volume of water which can be

softened before the next regeneration will be required.

When operating without a water meter, i.e. in time control, the display usually shows the full capacity

between regeneration’s.

During the regeneration of a simplex plant the display will read " 0 m3".

If the maximum value of 9999 is exceeded the LED display will show the text "OFL" as long as the value

is to high.

NB! There is an additional "decimal point" in the bottom right hand corner of the display. This flashes

when flushing has been commenced (see step 15 in the basic programme.

LED - control lamps

Coloured lamps are used to give the most important status indications.:-

Unit 1 in service (green)

Unit2 in service (green)

Unit 1 in regeneration (yellow)

Unit 2 in regeneration (yellow)

Message (red)

Fault (red)

Additional information is provided by the LCD display

LCD - display.

Service status.

The first line of the LCD display indicates the actual condition of the plant, e.g. unit 1 in service.

Usually during the service cycle the following information is given by the second line of the LCD:

The left hand part of the line shows the incoming water hardness which has been programmed

into the unit.

The current time is displayed on the right.

Service unit 1

200mg/l 17:00

ES 2050/51 Status and regeneration messages 4

However some operating regimes will produce alternative messages :-

Either:

When operating with the control set to prohibit regeneration between certain times (section 3 of the

programming instructions), if regeneration is required it will be postponed and the initiation signal

stored until the end of the prohibited period, the second line of the display will show the time at

which the unit will commence regeneration and the current time.

or:

If the control has been set to initiate a regeneration after a fixed time interval the second line of the

display will show the number of hours remaining until regeneration will take place and the current

time.

or:

The control can be programmed to give a signal, e.g. for a bleed valve, each time a predetermined

volume of water has been supplied. When this output is active the second line of the display shows

the remaining signal duration.

Regeneration status.

The first line of the LCD display indicates the actual condition of the plant, e.g. unit 1 in regeneration.

The second line of the LCD display shows, the regeneration step or phase in progress, the time

remaining in the step and indicates, when an additional routine has been selected (section 15 of the

programming instructions), whether the output is active. "-" indicates active "l" indicates inactive. If

"Step: 0" is displayed it means that the additional routine will operate before regeneration can

commence, similarly "Step: 6" indicates that the additional routine is continuing beyond the end of the

regeneration cycle. If required the duration and remainder of the additional routine can be displayed

briefly by pressing the INFO key (see page 6).

Service unit 1

Reg18:00 17:00

Service unit 1

Reg 72h 17:00

Service unit 1

Flush-time 20s

Regen. unit 1

Phase : 2 15 Min.-

ES 2050/51 Changing and indication of program values 5

Changing and indication

of programme values.

The most important programme values can be recalled and, changed if required, by pressing a key.

Hardness of the water supply.

Press the "Hardness" key, indicated by the symbol , to display the supply water hardness.

Should it be necessary to change the programmed value; the arrow key "8" may be used to move the

flashing cursor to the digit to be changed, and the Number key "#" to make the change.

A desired unit of hardness measurement may be selected (section 8 of the programming instructions),

the following are available :-

Hardness units Programmable range

°D

°F

°E

mg/l CaCO3

gpg

German hardness degrees

French hardness degrees

English hardness degrees

Milligrams per litre as CaCO3

Grains per gallon

2 - 99

4 - 199

2 - 99

40 - 1990

2 - 99

The controller automatically recalculates the capacity between regeneration’s using the new value, at the

initiation of the next regeneration cycle, as follows :-

If the resulting value exceeds the maximum value of the LED display (9999 m3) "maximum value

exceeded" will appear in the display.

Important Note! If a hard water blending by pass is used so that the water meter indicates the blended

water capacity, it is essential to subtract the final, blended, water hardness from the value to be inserted.

Example:

supply water hardness = 300 mg/l CaCO3, blended water hardness = 120 mg/l CaCO3

Thus a value of 180 mg/l CaCO3(300 mg/l CaCO3- 120 mg/l CaCO3) must be programmed into the

control.

Water hardness:

220mg/l

Column capacity [ grms CaCO3/m3of resin x m3of resin] =Softened Water Capacity [m3]

Supply Water Hardness [mg/l ~ CaCO3]

ES 2050/51 Changing and indication of program values 6

Current Time.

Press the "Time" key indicated by the symbol , to display the current time.

Should it be necessary to change the programmed value; the arrow key "8" may be used to move the

flashing cursor to the digit to be changed, and the Number key "#" to make the change.

Information DISPLAYS.

The "INFORMATION" key makes it possible to retrieve information, e.g. values from memory. Each time

the "INFORMATION" key indicated by the symbol , is pressed a different piece of information is

displayed :-

Flush period.

The programmed volume between successive flush signals, the volume remaining to the next flush

signal and the duration of the flush signal are displayed.

Regeneration time .

The duration of a complete regeneration cycle and the possible additional time which could be

programmed in are displayed.

Regeneration restrictions.

NoReg 16:00-18:00 if the control has been set to prohibit regeneration between certain times (section 3

of the programming instructions), this part of the display shows the time between which regeneration is

prohibited. Otherwise the display will read : NoReg---.

Current Time

Mo 16:48

Flushing

500l 350l 20s

Regen.time [min]

Σ125 rest 15

NoReg16:00-18:00

IntRg72 MinRg4

ES 2050/51 Changing and indication of program values 7

IntRg 72 if the control has been set to initiate regeneration after a programmed time interval (section 4 of

the programming instructions), this part of the display shows programmed time interval in hours.

Otherwise the display will read : IntRg -.

MinRg 4 if the control has been set to give a minimum period between successive regeneration’s

(section 5 of the programming instructions), this part of the display shows the programmed time interval

in hours.

Otherwise the display will read : MinRg -.

Additional program.

If the additional program has been selected (section 15 of the programming instructions), the selected

start time and the duration of the additional program are displayed, if "Step 0" is displayed the additional

routine will operate before regeneration can commence, similarly "Step: E" indicates that the additional

routine will continue beyond the end of the regeneration cycle. If the program is activated the display

shows how long it has left to run.

If no additional program in has been entered "No additional program" will appear in the display.

Unit capacity.

The calculated capacity between regeneration’s is displayed.

Treated water produced.

The total volume of water which has been treated by the plant.

Warning: This counter can be reset to zero by a service engineer, consult service logs for details of

the value prior to reset.

Additional progr.

Step:2 26 Min.

Unit capacity

150 m3

Treated water

45367 m3

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