Danfoss EKE 347 Liquid Level Controller Installation Guide

EKE 347 Liquid Level Controller
Installation Guide 

Liquid Level Regulating principle

Fig. 3a:
LOW

Fig. 3b:
LOW

Fig. 3c:
LOW

Fig. 3d:
HIGH

Necessary connections (fig. 4, 5 and 6)

Terminals:
28-29 Supply voltage 24 V a.c. or d.c. 1-7 Signal from level transmitter type AKS 4100/4100U or 7-10 Signal from level transmitter type  AKS 41
36-37 Expansion valve type  AKV or AKVA (see note to the right) or
23-24 Expansion valve type: ICM with ICAD 13-14 Switch function for start/stop of the controller. If a switch is not connected, terminals  13 and 14  must be shortcircuited.

Application-dependent connections (fig. 4, 5 and 6)
Terminals:
33-35 Relay for common alarm. The installer can choose between  Normally Open (33-34) or Normally  Closed (34-35) circuits.  The relay will switch according to  the programmed setting.
25-27 Relay for low-level limit.  The installer can choose between Normally Open (26-27) or Normally Closed (25-26) circuits.  The relay will switch when the set value is passed.
30-32 Relay for upper-level limit.  The installer can choose between Normally Open (30-31) or Normally Closed (31-32) circuits.  The relay will switch when the set value is passed.
6-10 ICM valve feedback signal from ICAD 0/4-20 mA
Note!
If AKV(A) is used, the power supply must cover the AKV(A) coil wattage additionally (see fig. 5). AKV(A) Coil voltage must be the same as controller supply voltage AC or DC.

MASTER/SLAVE and I/O configuration (fig. 7b and 7c) When more controllers are connected via CAN bus each end of the bus must be terminated with a jumper between  15 and 16.

Control Panel (fig. 8)

The user interface of the control panel consists of a multiline display and 4 individual push buttons: Enter button, Page up button, Page down button, and Back button.
Fig. 8  shows the Home display image, which gives the actual overview. This is the starting point for entering into menus, and you will revert to this image by pushing   1 – 3 times depending on the actual position).

Display (fig. 9)
The display itself shows the state of Liquid level, Controller Mode (controller On/ Off), Valve opening degree, Lower level alarm (on = no alarm present) and Upper
level alarm (off = no alarm present).
Additional to the external connected alarm audio/video sources, a Bell symbol will flash in the upper right corner in case of an alarm.
To see more details on system performance and setting of parameters, 2 different main menu levels can be reached by operation of the push buttons.

Menu’s
Entrance to menus (see fig. 10) From Home Image the status menu can be reached by one push-on . From Home Image the Setup & service menu can be reached by one push and hold on . For entrance, a Login is required by the password given during commissioning.
Parameter mode (read/write mode) When maneuvering in Setup & service menu or Status menu there is an overall logic of showing possible actions for each parameter. Plain text: Read-only

Framed text:
Parameter can be changed – push to highlight.

Highlighted text:
Scroll with   / to the desired selection and push to enter the selection. Once entered the parameter is valid and the text changes to framed text.

Status menu
To enter Status menu from Home image:
Push once.

The Status menu is an open menu accessible for all. Therefore only 1 parameter can be changed from here. A selection of other parameters can be seen from the status menu:

Status menu ( Open menu )

| Options
---|---
Setpoint
Liquid level setpoint| 0 – 100%
Active alarms
Example of alarm content. The list will be empty in normal operation as no alarm is active.
Level signal out of range| hours    minutes
Standby mode| hours    minutes
Detailed status
Controller state| Stop, Manual, Auto, Slave, IO
Actual level| 0.0 – 100%
Actual reference| 0.0 – 100%
Actual OD| 0.0 – 100%
Digital input status| On / Off
Actual level signal current| mA
Oscillation amplitude| 0.0 – 100%
Oscillation period| sec
Controller Info
Type|
Name (Controller name)|
SW (Software version)|
Bios (Bios version)|
Adr (Controller address)|
SN (Serial Number)|
PV (Product version)|
Site (Production site)|
QR code
Code|
Read & Write

Read-only

Setup & service menu

(Requires log-in password assigned inCommisioning menu)

To enter the Setup and service menu from the Home image: Push and hold .
Maneuvering in the Status menu and the Setup and service menu’s are done by use of the 4 push buttons shown in fig. 8.
The Setup & service menu is divided into 3 access levels, where personnel have individual authority.
The most advanced level is Commissioning, where you have access to change all allowable parameters, including password issuing and a re-run of Setup wizard. The default password for commissioning is 300.
Service level is for service personnel and has fewer rights than commissioning. The default password is 200. The lowest level is for Daily use and allows only a few changes. The default password is 100.
Below table shows the authority given to the 3 levels.
Setup & service menu (Requires Log-In. Password to be assigned in Commissioning menu)

Parameter| Options| User level – access| Default values
---|---|---|---
Daily| Service| Commissioning
Reference| Main switch| On, Off| RW| RW| RW| Off
Liquid level setpoint| 0 – 100%| RW| RW| RW| 50.0%
Operation mode| Master, IO, Slave| R| R| RW (L)| Master
Alarm setup| Lower level limit| 0 – 100%| RW| RW| RW| 15%
Upper level limit| 0 – 100%| RW| RW| RW| 85%
Level alarm mode| Time, Hysteresis| R| R| RW| Time
Lower delay| 0 – 999 sec| R| RW| RW (D)| 10 sec
Upper delay| 0 – 999 sec| R| RW| RW (D)| 50 sec
Lower level hysteresis| 0-20 %| R| RW| RW (D)| 3%
Upper level hysteresis| 0-20 %| R| RW| RW (D)| 5%
Function common alarm| Not follow; Follow up; Follow low; Follow all| R| R| RW| Not follow
Oscillation detect band| 0 – 100%| R| RW| RW (D)| 100%
Oscillation detect timeout| 2 – 30 min| R| RW| RW (D)| 20 min
Force pump OFF in stop mode| Yes / No| R| RW| RW| No
IO Lower level limit| 0 – 100%| RW| RW| RW (D)| 5%
IO Upper level limit| 0 – 100%| RW| RW| RW (D)| 95%
IO Lower level hysteresis| 0-20 %| R| RW| RW (D)| 3%
IO Upper level hysteresis| 0-20 %| R| RW| RW (D)| 3%
IO Lower delay| 0 – 999 sec| R| RW| RW (D)| 10 sec
IO Upper delay| 0 – 999 sec| R| RW| RW (D)| 50 sec
IO Level limit| 0 – 100%| R| RW| RW (D)| 50%
IO Level delay| 0 – 999 sec| R| RW| RW (D)| 10 sec
IO Level hysteresis| 0-20 %| R| RW| RW (D)| 3%
IO Level action| Falling,Rising| R| RW| RW (D)| Falling
Control| Control Method| On/Off ,P, PI| R| RW| RW| PI
Regulating principle| Low, High| R| RW| RW| Low
P-band| 5 – 200%| R| RW| RW (D)| 30.0%
Integration time Tn| 60 – 600 sec| R| RW| RW (D)| 400 sec
Neutral zone| 0 – 25%| R| RW| RW (D)| 2.0%
Difference| 0,5-25%| R| RW| RW (D)| 2%
Period time for AKV/AKVA| 3-15 sec| R| RW| RW (D)| 6 sec
Minimum OD| 0 – 99%| R| RW| RW (D)| 0%
Maximum OD| 1 – 100%| R| RW| RW (D)| 100%
Display| Language| EN,CN,PT,RU,SP,FR,IT, GER, ARAB| R| RW (L)| RW (L) (D)| EN
Output indication| level, OD| R| RW| RW (D)| Level
Login timeout| 0 – 120 min| R| RW| RW| 10 min
Backlight timeout| 0 – 120 min| RW| RW| RW| 2 min
Password daily| 3 -digit, 0 – 999| N/A| N/A| RW| 100
Password service| 3 -digit, 0 – 999| N/A| N/A| RW| 200
Password commission| 3 -digit, 0 – 999| N/A| N/A| RW| 300
IO config| System configuration| ICAD+NC, ICAD, AKV/A+NC, AKV/A, NC only| R| R| RW (L)| ICAD + NC
Level signal setup| AKS 4100, AKS 41, Current, Voltage| R| R| RW (L)| AKS4100
Voltage at low liquid level| 0-10V| R| RW| RW (D)| 0 V
Voltage at high liquid level| 0-10V| R| RW| RW (D)| 10 V
Current at low liquid level| 0-20 mA| R| RW| RW (D)| 4 mA
Current at high liquid level| 0-20 mA| R| RW| RW (D)| 20 mA
Valve position setup| Not used, Current, Voltage| R| R| RW (L)| Not used
Voltage at closed valve position| 0-10V| R| RW| RW (D)| 0 V
Voltage at open valve position| 0-10V| R| RW| RW (D)| 10 V
Current at closed valve position| 0-20 mA| R| RW| RW (D)| 4 mA
Current at open valve position| 0-20 mA| R| RW| RW (D)| 20 mA
Common alarm setup| D04, High alarm, D03, Disp only| R| R| RW (L)| High alarm
Multiple valve setup| Not used, 2 same cap, 2 dif cap, 3 same cap, 3 dif cap| R| R| RW (L)| Not used
Multiple valve pattern| Parallel,Sequence| R| R| RW (D)| Parallel
Valve A capacity| 0-100 %| R| R| RW (L) (D)| 50%
Valve B capacity| 0-100 %| R| R| RW (L) (D)| 50%
Valve C capacity| 0-100 %| R| R| RW (L) (D)| 30%
ICAD takeover OD| 0-100%| R| RW| RW (D)| 80%
IO module setup| Used, Not used| R| R| RW (L) (D)| Not used
Communication| CAN ID| 1 – 127| R| R| RW| 1
CAN baudrate| 20k, 50k, 125k, 250k, 500k, 1M| R| R| RW| 500k
Modbus ID| 0 – 120| R| R| RW| 1
Modbus baud rate| 0, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400| R| R| RW| 19200
Modbus mode| 8N1, 8E1, 8N2| R| R| RW| 8N1
Modbus mapping| Operation, Setup| R| R| RW| Operation
Valve B CAN ID| 1 – 127| R| R| RW (D)| 2
Valve C CAN ID| 1 – 127| R| R| RW (D)| 3
IO Mod. CAN ID| 1 – 127| R| R| RW (D)| 4
Parameter| Options| User level – access| Default values
---|---|---|---
Daily| Service| Commissioning
Service| Controller state| | R| R| R| –
Actual level| | R| R| R (D)| –
Actual referrence| | R| R| R (D)| –
Actual OD| | R| R| R (D)| –
Actual valve position| | R| R| R (D)|
Digital input status| | R| R| R (D)| –
Actual level signal voltage| | R| R| R (D)|
The actual level signal current| | R| R| R (D)| –
Actual position signal voltage| | R| R| R (D)|
Actual position signal current| | R| R| R (D)|
Actual OD A| | R| R| R (D)|
Actual OD B| | R| R| R (D)|
Actual OD C| | R| R| R (D)|
Manual Mode| On, Off| R| RW| RW (D)| Off
Manual OD| 0 – 100%| R| RW| RW (D)| 50.0%
Manual low alarm| Off-On| R| RW| RW (D)| Off
Manual high alarm| Off-On| R| RW| RW (D)| Off
Manual common alarm| Off-On| R| RW| RW (D)| On
Apply defaults| None, Factory| N/A| N/A| RW (D)| None
Setup wizard| Setup wizard| Re-run Setup wizard| N/A| N/A| RW| –
I/O check| Main switch EKE act:| Off – On| R| R| R| Off
AKS 4100 EKE act:| 0 – 20 mA| R| R| R (D)| –
ICAD EKE act:| 4 – 20 mA| R| R| R (D)| –
Nor. Close (NC) EKE act:| Off – On| R| R| R (D)| –
Upper lvl (alarm) EKE act:| Off – On| R| R| R (D)| –
Lower lvl (alarm) EKE act:| Off – On| R| R| R (D)| –
Controller name| Controller name| Type in controller name| RW| RW| RW| –

EKE 347 Alarm-Relay function

First-time start-up
(Setup wizard)
When all connections to the controller have been made, the first-time start-up can be performed.
After switching power on, the Danfoss logo will appear for 5 seconds The setup wizard will start.
During the setup wizard following sequence must be repeated for all parameter settings:
a) Parameter name + 1 st option
b) Press   to highlight 1 option
c) Scroll with/to your desired option.
d) Press to set your choice xxxxxx
e) Scroll with to next parameter  repeat sequence a to e)

1. Language
   You can select any of these 9 languages: English, Chinese, Portuguese, Russian, Spanish, French, Italian, German, Arabic

2. System configuration Select any of these 5 predefined configurations:
   ICAD + NC(solenoid) NC(solenoid) AKV/A AKV/A + NC(solenoid) ICAD

3. Operation mode
   Select any of these 3 predefined modes: Master (EKE 347 as Master controller) IO (EKE 347 as In/Out module) Slave (EKE 347 as slave for another Master

4. Regulating principle
   Select one of these 2 principles Low High

5. Liquid level setpoint
   Type in any level setpoint from 0% to 100% (default is 50.0%) 50.0%

6. Lower level limit
   Type in any limit from 0% to 100% (default is 15%) 15%

7. Upper level limit
   Type in any limit from 0% to 100% (default is 85%) 85%

8. Level signal setup
   Select one of these 4 predefined signal setup:
   AKS 4100
   Voltage
   Current
   AKS 41

9. Valve feedback setup
   Select one of these 3 predefined feedback setup (valve feedback is only possible with ICAD):
   Not used
   Voltage
   Current

10. Common alarm setup
    Select one of these 4 predefined methods:
    High Alarm
    D04
    Disp only (only Bell symbol flashing)
    D03

11. Apply wizard settings
    Press to confirm all inputs or Press to return to last menu

Once data entry has been confirmed, the controller has sufficient data to do a qualified regulation of your system.

You are now asked to select one of these
menus. Main menu Main switch I/O check
Press   for reaching the Setup & service menu or press   2 times for reaching the Home display image. If for some reason it is needed to  un the setup wizard again, this is possible by log in to the setup & service menu with the commissioning authority.

Alarm and error codes:
When detecting an alarm from external sources or the flashing bell in the display, the alarm description can be found as a text message in the Status menu under Active
alarms.

Both alarms and errors will be shown here. If more alarms/errors occur simultaneously, they will be shown as subsequent text lines.

Alarms:

Upper level
Lower level
Standby mode
Valve B CAN ID conflict
Valve C CAN ID conflict
IO module CAN ID conflict
IO module communication
Communication to master lost
Min/max OD conflict
Common alarm HW conflict
Control method conflict
Multiple valve setup conflict
Valve C alarm
Valve B alarm
Oscillation in level signal
Valve position
Multiple valve capacity
Valve C communication
Valve B communication
Errors:
Internal error
Level signal out of range
Valve position signal out of range
Sensor supply overload
AKS 4100 error
Too much current AI3
Too much current AI4
DO4 overload

Danfoss A/S
Climate Solutions

• danfoss.com
• +45 7488 2222

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