EWS EC3020 Manuel utilisateur
Controller for exchange cylinder systems
EC3020
Instruction manual
Software version 2.00
Contents
General description ………………….………..............................................….. 1
Step “Service Filter 1”, “Standby filter 1”
Step “Service Filter 2”, “Standby filter 2”
Step “No Service”
Step “No Service 1+2”
Step “No Service 2+1”
Value and function display …………..................................................…………. 4
Info display …………………................................................………….…………. 5
Alarm……………………………................................................…………………. 7
CM Min
Power failure
Exchange cylinder 1
Exchange cylinder 2
Exchange cylinder 1+2
Exchange cylinder 2+1
Input functions ……………………….…......................................................…….. 10
Tank empty
Tank full
Alarm reset
Output functions ……...........................................................…….…………..........12
Service valve 1
Service valve 2
Alarm
Changing and calling up basic parameters.............................................……… 13
1. Language
2. Number of filters
3. Conductivity meter
4. Temperature
5. Correction factor
6. Level switches
7. Alarm
Connection diagram……….…………................................................….………… 19
Installation recommendations and commissioning ………..……….…....….… 20
Technical specifications………..……….…….......................................…....….… 22
Declaration of Conformity…..…..…….……............................................…..........23
EC3020 General description
1
General description
The EC3020 controller is used for the fully automatic monitoring and control of
single or duplex cylinders for exchange cylinder systems, whereby the filter
cylinders have to be regularly exchanged.
The basic controller parameters can be changed at any time; the programmed
values are not lost in the event of a power failure.
The controller operates according to 7 steps, indicated as "Service Filter 1",
“Standby Filter 1”, "Service Filter 2", “Standby Filter 2”, “No Service”, “No Service
1+2” and “No Service 2+1”.
The controller checks the conductivity of the water and if this exceeds a settable
limit value, performs the following actions:
- In case of single filter systems, switches to “No Service”.
The Service valve is closed and, once the cylinder is exchanged, the system must
be switched on by hand using the external key.
- In case of duplex systems, switches to the other filter cylinder.
If the engaged filter cylinder, within a programmed period, also produces water with
too high conductivity, the system is switched off.
After replacing the filter cylinders, these can be switched on by hand, using the key
on the outside of the controller.
In single filter systems, the service valves of the cylinder must be connected to
“SV1”.
EC3020 General description
2
Step "Service Filter 1”, “Standby filter 1”
Filter cylinder 1 produces demineralised during “Service filter 1”.
As an option, it is possible to regulate the Service valve by 1 or 2 level switches.
If 1 level switch is set, the Service valve is opened after a delay, which can be
programmed.
If 2 level switches are set, the Service valve is opened after a fixed delay of one
second.
If the filter does not need to produce any water, the Service valve is closed and
“Standby filter 1” appears in the LCD display.
The following values are monitored
- Conductivity under the minimum limit value (only if the Service valve is
opened)
-The maximum conductivity limit value (from version 1.01.02 only if the
service valve is opened).
-Inlet tank low level
-Inlet tank high level
Step "Service Filter 2”, “Standby filter 2”
Filter cylinder 2 produces demineralised during “Service filter 2”.
As an option, it is possible to regulate the service valve by 1 or 2 level switches.
If 1 level switch is set, the service valve is opened after a delay, which can be
programmed.
If 2 level switches are set, the service valve is opened after a fixed delay of one
second.
If the filter does not need to produce any water, the service valve is closed and
“Standby filter 2” appears in the LCD display.
EC3020 General description
3
The following values are monitored
- Conductivity under the minimum limit value (only if the service valve is
opened)
-The maximum conductivity limit value (from version 1.01.02 only if the
service valve is opened).
-Inlet tank low level
-Inlet tank high level
Step "No Service”
This step only appears in single filter systems.
The system is switched off when the filter cylinder is saturated.
Once the filter cylinder is exchanged, it can be switched on by pressing the external
key (press 1x).
Step "No Service 1+2”
If both filter cylinders shortly after one another produce water with too high
conductivity, the system is switched off. Once the filter cylinders are exchanged,
these must be switched on by pressing the external key (press 2x). Filter 1 will in
this case be switched on first.
During this step, conductivity is not monitored and the service valves remain closed.
Step "No Service 2+1”
If both filter cylinders shortly after one another produce water with too high
conductivity, the system is switched off. Once the filter cylinders are exchanged,
these can be switched on by pressing the external key (press 2x). Filter 2 will in
this case be switched on first.
During this step, conductivity is not monitored and the service valves remain closed.
EC3020 Value and function display 4
Value and function display
First LCD line
The current status of the system is shown in the first line of the LCD display:
"Service Filter 1", "Standby filter 1", “Service Filter 2”, “Standby filter 2”,
“No Service 1+2” and “No Service 2+1”.
In case of an alarm situation, an alternating message appears.
Second LCD line
The measured conductivity is shown in the second line of the LCD display.
ATTENTION! If the message "OFL" appears in the second line, the value falls
outside the measurement range.
Example:
Service
F
ilter 1
CM 40.0uS/cm
EC3020 Info display 5
Info display
Various information can be called up by pressing the information key.
Pressing the key again changes the information shown.
Input positions
The current switch positions of the input functions are shown here.
EM = low level switch
FU = high level switch
Output positions
The current switch positions of the outputs SV1, SV2 and AL are shown here.
SV1 = Service valve filter 1
SV2 = Service valve filter 2
AL = Alarm
Input
EM- FU-
Output
SV1- SV2- AL-
EC3020 Info display 6
Software version
The software is regularly updated to ensure that the product complies with the latest
insights and needs.
The number of the operational version is indicated.
Software version
EC3020 1.01.00
EC3020 Alarm 7
Alarm
If the alarm relay is activated, it can be deactivated by pressing the external key.
Although this deactivates the relay, the message is still shown in the LCD display.
Press the key again to remove the message.
CM MIN
The conductivity value of the conductivity meter has dropped below the set
minimum limit value. The system remains operational.
The message in the LCD display can be switched off as soon as the minimum limit
value is again exceeded. The alarm relay can be activated.
Power failure
It is possible to program an alarm in case a power failure occurs while the controller
is operational.
Limit CM Min
under valued
S
ignal
S
upply failure
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