Danfoss EKE 1P Stepper Valve Extension Module User Guide

User Guide for Danfoss models including: EKE 1P, 80G395, 80G396, EKE 1P Stepper Valve Extension Module, EKE 1P, Stepper Valve Extension Module, Valve Extension Module, Extension Module

Stepper Valve Extension Module, type EKE 1P

File Info : application/pdf, 16 Pages, 1.44MB

BC320219567793en-000401

User Guide
Stepper Valve Extension Module Type EKE 1P
ADAP-KOOL® Refrigeration Control System
www.danfoss.com

User Guide | Stepper Valve Extension Module, Type EKE 1P

Contents

Introduction ................................................................................................................................................................................................................3 Application 1...............................................................................................................................................................................................................4 Application 2...............................................................................................................................................................................................................4 User Interface..............................................................................................................................................................................................................5 End-user overview with graphical display .......................................................................................................................................................7 Service and commissioning with graphical display .....................................................................................................................................7 Menu ..............................................................................................................................................................................................................................8 Alarm list.................................................................................................................................................................................................................... 11 ERR31.......................................................................................................................................................................................................................... 12 Connections ............................................................................................................................................................................................................. 13 Technical Data ......................................................................................................................................................................................................... 14 Installation considerations.................................................................................................................................................................................. 14 Mounting/dimensions.......................................................................................................................................................................................... 15 Ordering .................................................................................................................................................................................................................... 15

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User Guide | Stepper Valve Extension Module, Type EKE 1P

Introduction

Application
The controller is used as an extension module for other Danfoss controllers (application 1 below) or as a stepper valve driver (application 2 below).

Application 1

EKE 1P
CAN RJ

AK-PC

CAN

CCMT/ETS/CCM
Application 2 %
Fig. 1
100

Danfoss 80G395

Fig. 2
PLC

0 Min.

V Max.

EKE 1P

ACCCBI080G0075

< 3m

CAN RJ

V MMIGRS2

Danfoss 80G396

CCMT/ETS/CCM

Danfoss 80G394

Input and output In application mode 1, all input and output are defined via the master controller AK-PC set-up. In application mode 2, the input and output are intended for one specific function.

The overview of connections can be seen on page 12.

Operation The daily operation can be set up via an external display device although this is normally not required for application 2. The normal operation screen for application 1 is shown below. During set-up, the display images will be adjusted so that only the relevant images are opened for additional setting and end-user operation. The operation is password protected, and three levels of access can be granted. The controller contains English language only.

Two sets of LEDs on the EKE 1P indicate the EKE 1P application confirmation, valve status and alarm condition see details further below.

Data communication The controller has a built-in CANBUS and a built-in MODBUS interface. The interfaces are used as shown in below table:

CANBUS
Application 1 Interface to master controller, AK-PC

MODBUS
MODBUS master for establishing communication with other MODBUS devices to the master controller, AK-PC

Application 2 Configuration of EKE 1P and daily use interface

Not used must not be connected to any MODBUS network

Fail-safe valve closure As a stepper valve is provided with step motor, it will remain open in a power failure situation.
For safety reasons, the liquid flow through the stepper valve must be cut off if a power failure occurs.
There are two ways of coping with this situation. One of the following two solutions can be applied in the system: · Mounting of a solenoid valve in front of EEV · Connection of a battery back-up for EEV valve
If the battery back-up is used, the battery voltage may be continuously monitored to generate an alarm in case the battery voltage gets out of range. As default this alarm is disabled.

Advantages
· Simplified settings: For application 1, typically the controller needs no parameter adjustment For application 2, only a few key parameter settings may be required
· Power Supply: Easy wiring layout. With no risk of causing short circuits when connecting to other units through power supply 24 V AC or 24 V DC: flexibility in selecting different transformers
· Universal valve support: Drives bipolar and unipolar valves Danfoss standard valves selectable through drop-down Flexible configuration of valve driver parameters for nonDanfoss standard valves

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User Guide | Stepper Valve Extension Module, Type EKE 1P

Application 1

Application 2

Application mode
In application 1, the EKE 1P operates as an extension module to a CO pack controller, AK-PC. It is possible to configure if the EKE 1P is used as an extension module where the stepper output controls the high pressure, or as an extension module where the stepper output controls the receiver pressure.
This is configurable through a software setting (parameter "Mode") or through a hardware configuration. As default the hardware configuration is enabled, which means the AI4 input is used for the configuration as follows:
AI4 open circuit or connected to 0 V (COM): high-pressure valve driver
AI4 connected to 5 V+: receiver valve driver
The IO configuration of application 1 is determined through the configuration of the AK-PC.
Some, all or a sub-set of the inputs and outputs may be used. See documentation of the specific AK-PC for details.
Valve configuration In application mode 1, the valve type is configured via the AK-PC. Only if the valve type is set to "User Defined" in the AK-PC, it is required to access the EKE 1P parameter list for configuring the valve specific parameters like number of steps, max current etc.
In application mode 1, the EKE 1P will set the valve opening degree to a fixed value in case of losing the CANBUS communication to the AK-PC. As default the valve will close in this case.

Valve configuration The valve type can be selected from an extensive list of Danfoss standard valve types. When a standard type is selected, only a few parameters need to be set i.e. a valve neutral zone, the valve overdrive and valve opening degree in special situations. If Danfoss standard valve type is not selected, app. 20 parameters for the valve and valve motor control become visible ("Valve motor type", "Valve drive current" etc.). See "Menu" for details.
Analogue input scaling The EKE 1P may be configured for various voltage ranges, e.g. 2 10 V. Here the valve will be 0% open at 0 V and 100% open at 10 V and proportionally opened in values between. Typical input ranges may be configured or the voltage range may be freely configured within 0 10 V and 10 0 V.
Note: if the minimum is set to 0 V, the valve will start opening at 0.1 V to ensure detection of a valve closure signal (0 V).
Valve neutral Zone The EKE 1P controller has a complex algorithm implemented to handle oscillation issues related to output valve OD by defining some neutral zone. In neutral zone, the valve will not move until it overcomes the definite variation in the valve opening degree.
Valve Overdrive To compensate for lost steps, the valve may be overdriven when it closes to 0%. i.e. it will close with extra steps to make sure that it is fully closed. This may, however, lead to increased wear on the valve if it occurs frequently. To prevent this, the overdrive will only be enabled when the valve opening degree exceeds a set value and the overdrive function may only re-occur within a set interval.

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User Guide | Stepper Valve Extension Module, Type EKE 1P
User Interface
LED alarm and status indication LED indication: Two sets of Light Emitting Diodes make it possible to follow the operation status of the valve and the controller.

Red Green

LED A: Two status LEDs indicate power and controller operation

Power-up:

1. AI valve driver module

R G

2. HP module

RRRR GGGG

3. Receiver module

RRRR GGGG

RRRRRRRR

GGGG

Normal operation: 4. Power

5. MODBUS error power 6. Power main switch OFF

RRRRRRRR G

R = Red G = Green

RRRRRRRR

GGGG

Configured as AI controlled stepper valve will blink for 30 sec. after power-up.
Configured as HP module will blink for 30 sec. after power-up.
Configured as receiver module will blink for 30 sec. after power-up.
Hardware problem.
Pattern during normal operation.
Pattern during normal operation, but MODBUS error. Pattern during normal operation, main switch = OFF. Hardware problem.

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User Guide | Stepper Valve Extension Module, Type EKE 1P

LED B: Two status LEDs to indicate valve operation

V1. Valve closed

V2. Valve closing

V3. Valve idle

RRRRRRRR

V4. Valve opening
V5. Valve open
R = Red G = Green

GGGGGGGG

Steady red = valve fully closed.
Flashing red (2 Hz) = valve closing.
Running on target. Both Red and Green off. Flashing green (2 Hz) = valve opening.
Steady green = valve fully open.

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User Guide | Stepper Valve Extension Module, Type EKE 1P
End-user overview with graphical display
The first screen in this daily user interface shows the status of the relevant inputs and outputs and will depend on how the set-up is made (application mode). Click on the "" to view e.g. the following images: Application 1 High pressure:
Application 1 Receiver pressure:
Application 2:
Service and commissioning with graphical display
To access the parameter menu, press and hold the "Enter" button for 3 seconds while the first screen in the daily user view (showing input and output values) is displayed. See next section for details.

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User Guide | Stepper Valve Extension Module, Type EKE 1P

Start/Stop Main switch
Device config Mode
AI valve input scale System Display
Password
Reset to Factory I/O Input status Output
Configure Alarm config Battery alarm

Main switch

On / Off

Start and stop regulating here.

Fac: Off

The configuration settings will require that regulating is stopped.

If you try to enter a configuration setting when regulating has started, the controller will

ask if regulating should be stopped.

When all settings have been made and the main switch is set to "ON", the controller will

enable the display of the various measurements. Regulation will start. (One external

main switch must be "ON" before regulation starts.)

Note: In application 1, the main switch automatically follows the main switch of the

AK-PC.

Selection of the application mode and how the device is used in application 1. Note: changing this setting also changes the EKE 1P address, causing communication with the graphical display to stop. Communication will resume after a power cycle. AI HP/Rec.: Appl. 1 - selection by AI4 HP exp: Appl. 1 - High Pressure expansion module Rec. exp.: Appl. 1 - Receiver Expansion module AI valve: Appl. 2 - Valve Driver
Configuration of the Analogue Input in application mode 2. If user defined is selected, the scaling is created via the two parameters, "AI 0% OD" and "AI 100%" OD which become visible.

AI HP/Rec. / HP exp / Rec. exp. / AI valve Fac: AI HP/Rec.
0 5 V / 1 5 V / 0 10 V / 2 10 V / 5 - 0 V / 5 1 V / 10 0 V / 10 2 V / User Defined Fac: 0 - 10V

If buttons have not been pressed within a specified period of time, the screen will return to the overview display. Afterwards, the user will have to log on again. If the time is changed, the new time will apply the next time the user logs in. If you log out here without waiting for the time-out period to elapse, go to the overview display and hold down the "X" button for 3 seconds.

Min: 1 min. Max: 60 min. Fac: 2 min.

Display unit

Temperature and Pressure unit

Metric (°C & bar) / Imperial (°F & psig) Fac: Metric (°C & bar)

Backlight time-out

If no buttons have been pushed for a specific period of time, the light in the display will be minimised. The light level will be restored upon renewed activity.

Min: 1 min. Max: 60 min. Fac: 1 min.

The settings in the controller can be protected with three levels of access codes. The three access codes are numbers between 001 and 999.

Password daily

Level 1: End user settings, such as changing the main switch Fac: 100

Password service

Level 2: Adjusting installer level

Fac: 200

Password commission Level 3: Configuration of system settings (configuration menu) Fac: 300

Apply defaults

This will reset the controller back to default (factory) settings

On / Off Fac: Off

AI 1 ... AI 4 DI 1 ... DI2 Relay state Relay control
DI1 Active at ... DI2 Active at

Here you can see pressure and temperature values received by the analogue inputs. The values include calibration

Here you can see the status of the digital input function/alarm

Here you can see if the function is on or off

Manual control of relay in application 2. In application 1 the Auto / On / Off

manual control is done from the AK-PC controller.

Fac: Auto

Under normal regulation, the function of the relay will be in

"Auto". In the event of an override, the function will be switched

to either "On" or "Off". Remember to switch to "Auto" when the

override is to be completed. Otherwise it will remain in override

until the device is power cycled or reset to factory settings

Define whether the function/alarm will be active with terminals On / Off

short-circuited (ON) or open-circuited (OFF)

Fac: On

If a battery back-up is connected to EKE 1P terminals, the EKE 1P will close the stepper motor if the controller loses its supply voltage. The battery voltage must not be connected from main power supply connected to EKE 1P. A battery voltage lower than 16.5 V will trigger the battery alarm. The battery back-up may be the Danfoss module (EKE 2U) or a general type (Bat.).

No / Bat. / EKE2U Fac: No

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User Guide | Stepper Valve Extension Module, Type EKE 1P

Valve config

Any changes made to parameters in this group will only take effect after a restart of the controller, e.g. by a power cycle or by toggling the main switch.

Valve configuration

Application 1: Set from AK-PC except if the valve type is set to User Defined in AK-PC, then it is according to below list (see Application mode 2). Application 2: 0 = no valve, 1 = UserDef, 2 = ETS 12C, 3 = ETS 24C, 4 = ETS 25C, 5 = ETS 50C, 6 = ETS 100C, 7 = ETS 6, 8 = ETS 12.5, 9 = ETS 25, 10 = ETS 50, 11 = ETS 100, 12 = ETS 250, 13 = ETS 400, 14 = KVS 2C, 15 = KVS 3C, 16 = KVS 5C, 17 = KVS 15, 18 = KVS 42, 19 = CCMT 0, 20 = CCMT 1, 21 = CCMT 2, 22 = CCMT 4, 23 = CCMT 8, 24 = CCMT 16, 25 = CCMT 24, 26 = CCMT 30, 27 = CCMT 42, 28 = CCM 10, 29 = CCM 20, 30 = CCM 30, 31 = CCM 40, 32 = CTR 20 33 = CCMT 3L, 34 = CCMT 5L, 35 = CCMT 8L

Fac: no valve

Valve fallback OD

During fail-safe mode in application 1 (e.g. CANBUS signal lost), the valve will apply this 0 100%

opening degree.

Fac: 0%

Valve motor type Define a type of motor used in the stepper valve (Unipolar/Bipolar).

Unipolar / Bipolar Fac: Unipolar

Valve drive current The current applied to each phase of the stepper motor during actual valve movement. 10 1000 mA

Entered as a peak value.

Fac: 10 mA

Valve step positioning

Read-out of the valve opening degree in number of steps.

Valve total steps

The number of steps that correspond to changing the valve position from 0 100% OD. 1 8000 steps Fac: 1 step

Valve speed

The desired valve drive rate in steps per second. Please note that a higher valve speed will produce a lower torque. If the valve is used in systems having high differential pressure, it is better to operate the valve with a lower step rate.

10 400 pps Fac: 10 pps

Valve start speed

This is used to limit the starting speed of the valve in order to provide higher motor torque at start-up to prevent the valve from potential step loss.

1 100% Fac: 20%

Valve emengency speed

During power failure conditions, the valve can be driven at higher speed when required 50 200%

to close faster. This function requires a back-up battery connected to the EKE.

Fac: 100%

Valve acceleration current
Valve acceleration time

These features are used with valves running at higher speed i.e 300 pps and above. Typically, at start-up high torque is required to operate the valve. The high torque at start-up can be maintained by using acceleration current as required.

100 150% Fac: 100%
10 150 ms Fac: 10 ms

Valve holding current The percent of the programmed Max Phase Current that should be applied to each phase of the stepper output when the valve is stationary. If required, this current ensures that the valve maintains its last programmed position.

0 300% Fac: 0

Valve step mode

Stepper motor can be driven with various step excitation methods, depending on valve Full, Half, 1/4, 1/8, 1/16

requirements and operating conditions.

Fac: 1/8

The valves can be driven in full step 1/1, half step 1/2, or in microsteps (1/4, 1/8, 1/16).

Valve duty cycle

The required valve duty cycle can be set between 5-100% using this parameter.

5 100% Fac: 100%

Valve OD during stop The valve will apply this opening degree if the control is stopped (main switch off ).

0 100% Fac: 0%

Start backlash

The parameter defines the operation of the start backlash function. The valve will normally open from this point onwards.

0 50% Fac: 0.0%

Compensation backlash

This setting is used to correct for mechanical hysteresis of the valve's designs including a 0-10% reduction gear. To ensure that the gear backlash is at a minimum, the motor will drive a Fac: 0.0% number of extra steps every time the direction of the motor is changed.

Overdrive

When the overdrive is enabled and the block timer has expired, next time the valve closes to 0% OD, it will close with some extra steps according to this setting.

0 20% Fac: 5.0%

Overdrive enable OD After being closed, the valve opening degree must exceed this value before the overdrive function is enabled again.

0 100% Fac: 0%

Overdrive block time After an overdrive has occurred, the overdrive function may not occur again within this 0 1440 min.

time.

Fac: 10 min.

Valve excitation time The time that the drive current is applied after the motor has stopped before going to 0 1000 ms

after stop

holding current. This will make sure that the valve has achieved the final position before Fac: 10 ms

going to holding current.

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User Guide | Stepper Valve Extension Module, Type EKE 1P

Valve neutral zone
Communication Controller adr. CAN baudrate Service Actual OD Actual step EKE 2U state
Actual battery voltage Manual mode
Manual OD

An EKE controller has a complex algorithm implemented to handle oscillation issues related to output valve OD by defining some neutral zone. In neutral zone, the valve will not move untill it overcomes the definite variation in the valve opening degree. For the default neutral zone of 0.5 % hysteresis, the valve will not move if it is unable to receive the higher variation than the set value. The benefit of using such techniques will not affect the performance of the system, but will reduce the problem related with the fluctuating signal, step loss and hysteresis in the valve.

0 5% Fac: 0.5%

Controller address - applies both to the MODBUS and the CANBUS Setting of the CANBUS baudrate

20k / 50k / 125k / 250k / 500k / 1M Fac: 50k

Read-out of the valve opening degree in percentage
Read-out of the valve opening degree in number of steps
Read-out of the EKE 2U battery back-up module status. Init: Initialising Ready: Fully charged and functional Char: Charging Repl: Check connections or replace EKE 2U module as the battery voltage is likely too low to guarantee full closure of the valves. Fault: EKE 2U battery voltage too low to close the valve.
Read-out of the battery back-up voltage level

Enables manual control of the valve. Remember to disable this function after manual control. Otherwise the EKE 1P will remain in manual mode until a power cycle or main switch occurs.
Manual control of the valve opening degree in application 2. In application 1 the manual control is done from the AK-PC. When entering the manual mode, the valve will start at the current OD.

On / Off Fac: Off
0 100% Fac: current OD

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User Guide | Stepper Valve Extension Module, Type EKE 1P

Alarm list

Alarm text

Description

Valve configuration error

One or more valve configuration errors are blocking operation of stepper valve. Check the other active alarms to identify the valve configuration problem.

No valve configured

No valve selected. Please configure the correct valve.

Battery critical low voltage

Voltage from back-up module is found to be critically low and the valve will likely not be fully closed in case of a power failure. Check connections / replace battery or EKE 2U module.

Battery low voltage

Voltage from back-up module is found to be too low to close the valve in case of power failure. Replace battery or EKE 2U module.

Standby mode

The controller is in standby due to the Main switch parameter setting being off.

Manual control

The controller is in manual control, no automatic control is active and many alarms are disabled.

Check valve step mode vs positioning

With I064 Valve step mode set to "full" and I029 Valve step positioning set, Half step operation is possible. Correct either I029 or I064.

Valve speed too fast

Number of micro steps/sec is too high (higher than 12800 micro step/sec): Reduce valve speed or use less micro steps per full step.

Valve speed to slow

Number of micro steps/sec is low (lower than 8 micro step/sec), increase valve speed, increase valve start speed or use more micro steps per full step.

Valve emergency speed too fast Number of micro steps/sec is too high (higher than 12800 micro step/sec). Reduce valve emergency speed.

Valve emergency speed too slow Number of micro steps/sec is low (lower than 8 micro step/sec). Increase valve emergency speed.

Valve start speed too slow

Number of micro steps/sec is low (lower than 8 micro step/sec). Increase valve speed, increase valve start speed or use more micro steps per full step.

Valve short circuit or driver too hot

Valve driver is unable to drive valve. Check for short circuit of the coils or if ambient is higher than 60 °C.

Low supply voltage

Supply voltage is found to be lower than expected tolerance.

Network master missing (CAN)

No communication possible with the pack controller AK-PC in application 1. Check the CANBUS connection and configuration in both EKE 1P and AK-PC.

ERR31

See next page

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Danfoss 80G399

User Guide | Stepper Valve Extension Module, Type EKE 1P
ERR31
Alarm on the external display - MMIGRS2
If the communication to the display is not carried out correctly, it will send an "ERR31" error notification. This may be caused by the displayed wires H to R not being installed, or that there have been interruptions in data communication during the time when the display retrieves the basic information from the controller. Once the terminations have been inspected, you should then check the software version of the external display. This is done by holding down the Enter key and the X key for 5 seconds, until the Bios menu appears. Next, press the X key and read off the software version in the bottom right corner. The software version must be 1.13 or newer.
Once the display's software version has been checked, check the display's settings as follows: 1. Hold the Enter key and the X key down for 5 seconds, until the
Bios menu appears. 2. Select the "MCX selection" menu
- Select the "Clear UI" line and press Enter - Select the "Autodetect" line and press Enter 3. Press the X key to return to the Bios menu 4. Select the "COM selection" menu - Select the "CAN" line and press Enter 5. Press the X key to return to the Bios menu 6. Select the "Start up mode" menu - Select the "Remote application" line and press Enter 7. Press the X key to return to the Bios menu 8. Select the "CAN" menu - Select the "Baudrate" line and check that it is 50K - Select the "Node ID" line and check that it is 126 9. Press the X key to return to the Bios menu 10. Select the "Application" menu and press Enter.
The display will once again retrieve data from the controller. This process will take about 5 minutes.

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User Guide | Stepper Valve Extension Module, Type EKE 1P

5V+
D

D+ RGND

Connections
RS-485 ANANLOALGOUGE//DDIGIGITIATAL LINIPNUPTUT

CAN - RJ

CAN RJ

COM

AI1

AI2

AI3

AI4

COM

DI1

DI2

COM

D D+ RGND

CAN RJ

COM 5V+

DI2

DI1

COM

AI4 AI3

AI2

AI1

COM

Valve connection
CCMT/ETS/CCM White Black Red Green

ETS 6 Orange Yellow Red Black

EKE 1P A1 A2 B1 B2

StueppeprehreVaat lcvoenMtrodlluerle EKE 1P

Application 1 driver configuration AI4 open circuit or connected to 0 V (COM): high-pressure valve driver AI4 connected to 5 V+: receiver valve driver

/~ +/~ GND Bat+ A1 A2 B1 B2 NO1 C1 NC1
Danfoss 80G398

/~ +/~ GND Bat+ A1 A2 B1 B2 NO1 C1 NC1

PWR 24V Vbat SSTTEEPPER VALVE DIGITAL OUTPUUTT

Recommended wire size and cable distance between EKE controller and stepper motor valve

Cable length

1 15 m

Wire diameter

0.52 / 0.33 mm (20 / 22 AWG)

Technical specifications

I/O

Type

Analogue inputs Voltage
PT1000 Auxiliary Supplies

Digital inputs

Voltage free contacts

Digital output Relay

Stepper motor

Bipolar / unipolar

Battery backup

Communication

RS-485 RTU CAN

* Only used in application 1

No. Specification

Max. 15 V input voltage Do not connect voltage sources to unpowered units without limiting the current to analogue inputs (overall 80 mA). Open circuit HW diagnostics available for voltage input on: AI4

AI3*

0 5 V ratiometric AI4

0 5 V, 0 10 V

2 AI1*, AI2*

5 V + 1 Sensor supply: 5 V DC / 15 mA, overload protection approximately 150 mA

DI1*, DI2
Steady current minimum 1mA 2 Cleaning current 100 mA at 15 V DC
On: RIL < = 300 Off: RIH > = 3.5 k

C1-NO1* Normally Open: 3 A General purpose, 250 V AC, 100 k cycle 1 Normally Open: 3 A Inductive (AC-15), 250 V AC, 100 k cycle Normally Closed: 2 A General purpose, 250 V AC, 100 k cycle

Stepper valves: A1, A2, B1, B2

Bipolar and unipolar stepper motor output:

- Danfoss CCMT 3L- CCMT 8L / CCMT 0 CCMT 42 / CCM 10 - CCM 40/ETS 6 - ETS 400/ CTR 20

Other valves:

- speed 10 400 pps

- drive mode 1/8 microstep

- max. peak phase current: 1.2 A (848 mA RMS)

- max. drive voltage 40 V

- max. output power 12 W

VBATT: 18 24 V DC (24 V DC recommended) - Leakage: <15 A @30 V DC - max. battery current: 850 mA at 18 V - battery alarm will be activated below 16 V DC

Required power to do one closing of stepper valve:

ETS 6

: 110 J / 30 V mAh

ETS 12.5 - ETS 400 KVS 15 / KVS 42

: 60 J / 17 V mAh : 60 J / 17 V mAh

ETS 12C - ETS 100C : 55 J / 15 V mAh

KVS 2C / KVS 5C : 55 J / 15 V mAh

CCMT 2 - CCMT 8 : 60 J / 17 V mAh

CCMT 16 - CCMT 42 : 175 J / 49 V mAh

CCMT 3L - CCMT 8L : 60 J / 17 V mAh

CTR 20

: 60 J / 17 V mAh

RS-485* 1 Galvanic isolation
No built-in termination

CAN RJ 1 Application 1: Connect directly to AK-PC
Application 2: Connect directly to graphical display, MMIGRS2. Activate the termination on the graphical display.

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User Guide | Stepper Valve Extension Module, Type EKE 1P

Technical Data

General specification Feature Power supply
Power Consumption
Plastic Housing
Connectors Operating conditions Storage / Transport conditions Vibration and shock Integration Index of protection PCB protection Period of electric stress across insulating parts Resistance to heat and fire Immunity against voltage surges Software class and structure Approvals

Description

Galvanic isolation by switch mode power supply Input voltage rating (AC): 24 V AC ± 20 % (19.2 28.8 V AC) Input frequency (AC): 50 / 60 Hz Input voltage rating (DC): 24 V DC (20 40 V DC) Provides 5 W at 5 V and 15 V outputs isolated from the 24 V input Insulation between power supply and the extra-low voltage

Total Power consumption with following valve in operation and MMIGRS2 connected to the controller:

CCMT 16 - CCMT 42 : 15 V A /10 W

ETS 6

: 11 V A / 7.5 W

ETS 12C - ETS 100C : 20 V A / 14 W

KVS C

: 20 V A / 14 W

ETS 12.5 - ETS 400 : 7 V A / 5 W

CCMT 2 - CCMT 8 : 7 V A / 5 W

CCMT 3L - CCMT 8L : 9 V A/ 6 W

CTR 20

: 7 V A / 5 W

DIN rail mounting complying with EN 50022

Self-extinguishing V0 according to IEC 60695-11-10 and glowing / hot wire test at 960 °C according to IEC 60695-2-12

Material used for Enclosure are UL94-V0 and RoHS compliant

Ball test: 125 °C according to IEC 60730-1 Leakage current: 250 V according to IEC 60112

Plug able Screw connector Pitch 3.5 mm, relay and power connector Pitch 5 mm, CAN MMI: Modular Jack 6P4C

Material used for connectors are RoHS and UL approved

-20 60 °C, 90% RH non-condensing

-30 80 °C, 90% RH non-condensing

According to IEC 60068-2-27 Ea

In Class I and / or II appliances

IP40 only on the front cover

None (no conformal coating)

Long

Category D
Category II
Class A
CE compliance: This product is designed to comply with the following EU standards: · Low voltage guideline: 2014/35/EU · Electromagnetic compatibility EMC: 2014/30/EU and with the following norms:
EN61000-6-1. EN61000-6-3 (immunity and emission standard for residential. commercial and light-industrial environments)
EN61000-6-2. EN61000-6-4 (immunity and emission standard for industrial environments)
EN60730-1 and EN60730-2-9 (Automatic electrical controls for household and similar use)
RoHS compliance to 2011/65/EU and no components from negative list acc. to 500B0751 UL approval

Electrical specification

Feature Protection

Type Short circuit Over voltage
Over temperature Unstable Digital input

Description
Motor driver: dissipative over current protection
Analogue input: current limit and internal clamp diode Digital input: current limit and internal clamp diode Communication: transreceiver IC
Motor driver: thermal shutdown at 150 °C
Continuous variation of the digital input state

Installation considerations
Accidental damage, poor installation, or site conditions, can give rise to malfunctions of the control system, and ultimately lead to a plant breakdown. Every possible safeguard is incorporated into our products to prevent this. However, a wrong installation, for example, could still present problems. Electronic controls are no substitute for normal, good engineering practice.

Danfoss will not be responsible for any goods, or plant components, damaged as a result of the above defects. It is the installer's responsibility to check the installation thoroughly, and to fit the necessary safety devices. Special reference is made to the necessity of signals to the controller when the compressor is stopped and to the need of liquid receivers before the compressors. Your local Danfoss agent will be pleased to assist with further advice, etc.

14 | BC320219567793en-000401

User Guide | Stepper Valve Extension Module, Type EKE 1P
Mounting/dimensions
CAN RJ

130 110
Danfoss 80G393

For DIN rail mounting only (IP20)

Ordering
Type EKE 1P

Function
Stepper Valve Extension Module

EKE 2U

Back-up power module

Danfoss 80G8215.11
Operation Via AK-PC or MMIGRS2

AK-PC 572

Capacity controller

With buttons and display

MMIGRS2

Display unit

With buttons and display

Wire for display unit

L = 1.5 m, 1 pcs L = 3 m, 1 pcs

Supply voltage Code no.

24 V

080G0325

24 V

080G5555

24 V

080G0320

080G0294

080G0075 080G0076

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ADAP-KOOL®

References

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