Danfoss EKC 347 Electronic Controller
Specifications
- Product: Electronic controller Type EKC 347
- Manufacturer: Danfoss
- Model Numbers: M84H0049_1, M84H00455_1, M84H00456_1, M84H0050_1, M84H0067_1, M84H0058_1, M84H0051_1, M84H0057_1, M84H0059_1, M84H0061_1, M84H0060_1
- Power Supply: 24 V d.c.
- Compatibility: AKS 4100U, AKS 4100
Identification
Dimensions
Principle
Connection
Necessary connections
Terminals:
- 25-26 Supply voltage 24 V a.c.
- 15-16 Signal from level transmitter type AKS 4100/4100U or
- 14-16 Signal from transmitter 0-10V
- 23-24 Expansion valve type AKV or AKVA or
- 2-5 Expansion valve type: ICM with ICAD
- 1-2 Switch function for start/stop of regulation. If a switch is not connected, terminals 1 and 2 must be shortcircuited.
Application dependent connections
Terminal:
- 12-13 Alarm relay
- There is connection between 12 and 13 in alarm situations and when the controller is dead
- 8-10 Relay for lower level limit. There is connection between 8 and 10 when the set value is passed
- 9-10 Relay for upper level limit. There is connection between
- 9 and 10 when the set value is passed
- 17-18 ICM valve feedback signal from ICAD 0/4-20 mA
- 19-21 Current signal or
- 20-21 Voltage signal from other regulation (for external reference displacement)
- 3-4 Data communication
Mount only, if a data communication module has been mounted. - It is important that the installation of the data communication cable be done correctly. Cf. separate literature No.
RC8AC…
Connection examples
EKC 347 – ON/OFF Application. Open/Close solenoid valve with coil 110 V
Operation
Display
The values will be shown with three digits, and after an operation the controller will return to its standard mode and show the measured liquid level.
Light-emitting diodes (LED) on front panel
- There are LED’s on the front panel which will light up when the corresponding relay is activated.
- The upper LED will indicate the valve’s opening degree. A short pulse indicates a slow liquid flow and a long pulse a fast liquid flow.
- The three lowest LED’s will flash, if there is an error in the regulation.
- In this situation you can upload the error code on the display and cancel the alarm by giving the uppermost button a brief push.
The buttons
When you want to change a setting, the two buttons will give you a higher or lower value depending on the button you are push-ing. But before you change the value, you must have access to the menu. You obtain this by pushing the upper button for a couple of seconds – you will then enter the column with parameter codes. Find the parameter code you want to change and push the two buttons simultaneously. When you have changed the value, save the new value by once more pushing the two buttons simultane-ously.
Gives access to the menu (or cuts out an alarm)
Gives access to changes
Saves a change
Examples of operations
Set reference
- Push the two buttons simultaneously
- Push one of the buttons and select the new value
- Push both buttons again to conclude the setting
Set one of the other menusz
- Push the upper button until a parameter is shown
- Push one of the buttons and find the parameter you want to change
- Push both buttons simultaneously until the parameter value is shown
- Push one of the buttons and select the new value
- Push both buttons again to conclude the setting
Literature survey:
- Manual for EKC 347………………………………………………………PS.G00.A—
- Instruction for EKC 347………………………………………………..PI.RP0.A—
- Installation guide, “Data communication link
- for ADAP-KOOL® “…………………………………………………………RC8AC—
SW = 1.1x
|
Function |
Pa- ram-
eter |
Min. |
Max. |
Fac. set-
ting |
| Normal display | ||||
| Read the measured liquid level | – | % | 50.0 | |
| If you wish to see the actual opening degree, give the lower button a brief push | – | % | 0 | |
| If you wish to set the required setpoint you obtain ac- cess by pushing both buttons simultaneously | – | 0% | 100% | 100 |
| Level control | ||||
| External contribution to the reference. Cf. also o10. Value is set in %-points. | r06 | -100 | 100 | 0.0 |
| Start / stop of level control | r12 | OFF/0 | ON/1 | 1 |
| Alarm | ||||
| Upper level limit | A01 | 0 % | 100% | 85 |
| Lower level limit | A02 | 0% | 100% | 15 |
| Time delay for upper level limit | A03 | 0 s | 999 s | 50 |
| Time delay for lower level limit | A15 | 0 s | 999 s | 10 |
| Level alarm limit | A16 | 0% | 100% | 20 |
| Delay for level alarm | A17 | 0 s | 999 s | 0 |
| The level alarm is linked to:
0: Rising level (higher level than A16) 1: Falling level (lower level than A16) 2: Same function as if A18=0. When A2 alarm is gener- ated and Relay for lower level limit, gives OFF signal (cut out). 3: Same function as if A18=1 When A2 alarm is gener- ated and Relay for lower level limit, gives OFF signal (cut out). |
A18 |
0 |
3 |
0 |
| Function for Alarm relay when A1, A2 or A3 alarms are detected.
0: Alarm relay to be activated when A1 or A2 or A3 are detected. 1: Alarm relay only to be activated when A3 is detected. |
A19 |
0 |
1 |
0 |
| Regulating parameters | ||||
| P – band | n04 | 0%/Off | 200% | 30 |
| I: Integration time Tn | n05 | 60 | 600/
Off |
400 |
| Period time (only if AKV/A valve is used) | n13 | 3 s | 10 s | 6 |
| Max. opening degree | n32 | 0% | 100% | 100 |
| Min. opening degree | n33 | 0% | 100% | 0 |
| Neutral zone (only for ICM valve) | n34 | 2% | 25% | 2 |
| Definition of regulating principle
Low: On the low-pressure side (valve closes when liquid level is rising) High: On the high-pressure side (valve opens when liquid level is rising) |
n35 |
Low/0 |
Hig/1 |
0 |
| Miscellaneous | ||||
| Controller’s address | o03* | 0 | 60 | 0 |
| ON/OFF switch (service-pin message) | o04* | OFF | ON | |
| Define valve and output signal:
1: ICM. AO: 4-20 mA 2: ICM. AO: 0-20 mA 3: AKV/A, AO: 4-20 mA 4: AKV/A, AO: 0-20 mA Or if a master/slave function is used: 5: AKV/A, MASTER 6: AKV/A, SLAVE 1/1. AO:4-20 mA 7: AKV/A, SLAVE 1/1. AO:0-20 mA 8: AKV/A, SLAVE 1/2. AO:4-20 mA 9: AKV/A, SLAVE 1/2. AO:0-20 mA 10: AKV/A, SLAVE 2/2. AO:4-20 mA 11: AKV/A, SLAVE 2/2. AO:0-20 mA 12: AKV/A, SLAVE 1/1. AO:4-20 mA – AO always updated 13: AKV/A, SLAVE 1/1. AO:0-20 mA- AO always updated 14: AKV/A, SLAVE 1/2. AO:4-20 mA- AO always updated 15: AKV/A, SLAVE 1/2. AO:0-20 mA- AO always updated 16: AKV/A, SLAVE 2/2. AO:4-20 mA- AO always updated 17: AKV/A, SLAVE 2/2. AO:0-20 mA- AO always updated |
o09 |
1 |
17 |
1 |
| Define the input signal on terminals 10, 20, 21 (external reference displacement)
0: OFF 1: 4-20 mA 2: 0-20 mA 3: 2-10 V 4: 0-10 V |
o10 |
0 |
4 |
0 |
| Language
0=English, 1=German, 2=Frensh, 3=Danish, 4=Spanish, 5=Italian, 6=Swedish. When you change the setting you must also activate o04. |
o11* |
0 |
6 |
0 |
| Set supply voltage frequency | o12 | 0/50
Hz |
1/60
Hz |
0 |
| Selection of parameter for display and AO (except from when o09=1,2 or 5)
If o34 = 0: 0: Liquid level is show 1: Valve’s opening degree OD will be shown If o34 = 1: 0: Liquid level is show 1: The ICM valve position feed back signal [%] will be shown |
o17 |
0 |
1 |
0 |
| Manual control of outputs:
OFF: No manual control 1: Upper level relay put in pos. ON 2: Lower level relay put in pos. ON 3: AKV/A output put in pos. ON 4: Alarm relay activated (cut out) |
o18 |
OFF |
4 |
0 |
| Define input signal (level signal) on terminals 14, 15, 16 0: OFF
1: 4-20 mA 2: 0-10 V (also set the voltage values in the next two menus) Read functional description if the connection used is a master/slave function. |
o31 |
0 |
2 |
1 |
| Define input signal’s lower value for terminal 14, if
required |
o32 | 0.0 V | 4.9 V | 4.0 |
| Define input signal’s upper value for terminal 14, if required |
o33 |
5.0 V |
10 V |
6.0 |
| Define input signal on terminals 17-18 0: Not used
1: ICM mA feedback signal from ICAD connected 2: Not used |
o34 |
0 |
2 |
0 |
| Service | ||||
| Read liquid level | u01 | % | ||
| Read liquid level reference | u02 | % | ||
| Read external contribution to the reference | u06 | mA | ||
| Read external contribution to the reference | u07 | V | ||
| Read current signal on the analog output | u08 | mA | ||
| Read status of input DI | u10 | |||
| Read valve’s opening degree | u24 | % | ||
| Read level signal | u30 | mA | ||
| Read level signal | u31 | V | ||
| Read signal from ICM/ICAD | u32 | mA | ||
| Read signal from ICM/ICAD converted into % | u33 | % | ||
Error messages
| The controller can give the following messages: | ||
| E1 |
Error message |
Errors in the controller |
| E12 | The external reference contribution is outside the range | |
| E21 | Level signal outside the range 1) | |
| E22 | Signal from ICM/ICAD outside the range | |
| A1 |
Alarm message |
Upper level limit reached |
| A2 | Lower level limit reached | |
| A3 | Alarm level limit reached | |
1)
If E21 is detected. EKC 347 will force the valve to close or open the valve depending af n35
The valve is forced to fully closed, however if Min. Opening Degree (n33) is higher than 0 the valve will open to the value of n33
The valve is forced to fully open, however if Max. Opening Degree (n32) is lower than 100 the valve will open to the value of n32
And may not be disposed together with domestic waste. Equipment must be separate collected with Electrical and Electronic waste. According to Local and currently valid legislation.
All trademarks in this material are property of the respecitve companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
FAQ
- Q: What type of power supply does the EKC 347 require?
A: The EKC 347 requires a 24 V d.c. power supply. - Q: How do I set up alarm relay connections?
A: Connect the alarm relay to terminals 12-13 as per the application requirements. - Q: How do I configure the ON/OFF operation?
A: Adjust the P.Band to 0% or OFF and set the Hysteresis using the Setpoint procedure for ON/OFF operation.
Documents / Resources
 |
Danfoss EKC 347 Electronic Controller [pdf] Installation Guide EKC 347, AKS 4100U, EKC 347 Electronic Controller, EKC 347, Electronic Controller, Controller |
