Danfoss EKE 110 1V Injection Controller Installation Guide

In this mode, follow the sequence involving Condenser, Valve A,
DGT, Injection Valve, Economizer, Expansion Valve, and Evaporator
as per the instructions.

Wet and Vapor Injection Mode (VI/WI):

In this mode, follow the sequence involving Condenser, Valve A,
TP, DGT, Injection Valve, PeA, S2A, Expansion Valve, and Evaporator
as per the instructions for both Upstream and Downstream
configurations.

Frequently Asked Questions (FAQ):

Q: What is the recommended supply voltage for the product?

A: The recommended supply voltage is 24 V AC/DC* 50/60 Hz, SELV
**.

Q: How many valve outputs does the product have?

A: The product has 1 valve output.

Q: Does the product support Modbus RS485 RTU
communication?

A: Yes, the product supports Modbus RS485 RTU communication for
valve control.

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080R0416 080R0416

Installation guide
Injection Controller Type EKE 110 1V (PV01)
Introduction Injection controller EKE 110 1V can be used for: Vapor or wet injection mode (VI/WI): Where controller will manage stepper motor valve in injection of superheated vapor to compressor injection port and automatically switch to wet injection to avoid high discharge gas temperature control (DGT) depending on the running conditions. This enables improved compressor performance on an extended running envelope. Liquid Injection mode (LI): Where controller will manage stepper motor valve in liquid injection to avoid too high discharge gas temperature control (DGT) depending on the running conditions. This enables compressor to run safe in an extended running envelope. This controller is typically used in light commercial, commercial and industrial low ambient heat pump application. Compatible valves: ETS 6 / ETS 5M Bipolar / ETS 8M Bipolar / ETS Colibri / ETS 175-500L / CCMT L / CCMT / CCM / CTR

Basic application Liquid injection mode (LI):

Condenser

Valve A

DGT

Injection valve

DGT

: ” ” 04080, 80, / 168, Economizer Economizer
Info for UK customers only: Danfoss Ltd., 22 Wycombe End, HP9 1NB, GB

Expansion valve

Evaporator

Wet and Vapor injection mode (VI/WI): Upstream

Condenser

Valve A

DGT

Injection valve

PeA

S2A

Expansion valve

Evaporator

Downstream

Condenser

Valve A

DGT

Injection

valve

PeA

S2A

Expansion valve

Evaporator

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Technical specification

Supply Voltage

24 V AC/DC* 50/60 Hz, SELV **

Battery backup Input (Danfoss recommends EKE 2U) Number of valve outputs Valve type Modbus RS485 RTU Baud rate (default setting) Mode (default setting) No of temperature sensors Type of temperature sensors No of Pressure sensors Type of pressure transmitter*** No of digital input Use of digital input****
Digital output*****
PC suite Service tool Mounting Storage temperature Operating temperature Humidity Enclosure Display

24V DC
1 stepper motor valve Bipolar stepper valve Yes (Isolated) 19200 8E1 2(S2A, DGT) S2A-PT1000/NTC10K, DGT-PT1000 1 (PeA) Ratiometric 0-5-5 V DC, 0-10V, Current 4-20mA 1 (DI1) Start/Stop regulation 1 output: D0 (open collector), max sink current 10 mA Koolprog EKA 200 + EKE 100 service cable 35mm Din rail -30 80 °C / -22 176 °F -20 70 °C / -4 158 °F <90% RH, non-condensing IP20 No

Note: * The unit is suitable for use on a circuit capable of delivering not more than 50A RMS symmetrical Amperes ** For US and Canada, use class 2 power supply *** Pressure transmitter output supply voltage upto 18V/50mA **** If not using DI for start stop function then physically short the terminal with COM. ***** By default, DO is configured for communicating alarm for compressor stop. It can be used for other alarms if
activated in the configuration.

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Connection Overview EKE 110

Port -/~ and +/~

Description Power supply

Functional Earth

+ 5 V / 18 V + 5 V / 18 V Ext-GND GND DO PeA S2A DI1* DGT
BAT- and BAT+ Valve A MODBUS (B-, A+, GND)

Voltage for pressure probe** Not used Not used Ground / Comm for I/O signals Digital Output Pressure signal for economizer Temperature signal for economizer Digital Input Signal for Discharge gas temperature Battery backup inputs (EKE 2U) Connection for injection valve Modbus RS485 port

Note: * DI is software configurable, if not used with external signal then short circuit it or configure it as not used in software

** By default the power supply for pressure transmitter is set for 0V. Supply will change to 5V if pressure transmitter is

selected as ratiometric and 18V if selected as current type. Supply can be changed manual by selecting it in parameter

P014 in advanced I/O configuration

Note:

To avoid potential malfunctions or damage to the EKE 110, connect all peripheral components only to the designated

ports. Connecting components to unassigned ports may lead to operational issues.

Dimensions

70 mm

110 mm

Height: 49 mm

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Mounting/Demounting The unit can be mounted onto a 35 mm DIN rail simply by snapping it into place and securing it with a stopper to prevent sliding. It is demounted by gently pulling the stirrup located in the base of the housing.
Mounting :
1 2

Demounting :
Step 1:

“Click” 3
Step 2:

Unplug above shown male connector

Pull stirrup using screwdriver and remove EKE from rail

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Modbus installation
· For the Modbus cable, it is best to use 24 AWG shielded twisted-pair cable with a shunt capacitance of 16 pF/ft and 100 impedance.
· The controller provides an insulated RS485 communication interface which is connected to the RS485 terminals (see connection overview).
· The max. permissible number of devices simultaneously connected to RS485 cable output is 32. · The RS485 cable is of impedance 120 with maximum length of 1000 m. · Terminal resistors 120 for terminal devices are recommended at both ends. · The EKE communication frequency (baud rate) can be one of the following: 9600, 19200 or 38400
baud, default 19200 8E1. · The default unit address is 1. · For detailed info on Modbus PNU, check EKE 110 manuals

A+ B-

Not in use

Danfoss 93Z9023

GND

Manual resetting Modbus address: 1. Ensure pressure transmitter settings is set to ratiometric type transmitter in configuration 2. Remove Supply power from EKE 110 3. Connect terminal BAT+ to +5 V / 18 V (Important to make sure step 1 is observed) 4. Connect EKE 110 to power 5. Now Modbus communication options are reset to factory default (Address 1, 19200 baud, mode 8E1)
Signal Sharing
Power and backup supply sharing · 1 EKE 110 and 1 EKE 2U can share power supply (AC or DC) · 2 EKE 110 and 1 EKE 2U can share power supply only with DC
Pressure transmitter sharing · Physical sharing is not allowed. · Modbus sharing is allowed with more than 1 controller.
Temperature sensor sharing · Physical sharing is not allowed. · Modbus sharing is allowed with more than 1 controller.

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Cabling

Stepper valve connector
A1 A2 B1 B2 Not connected

ETS/KVS/CCM/ CCMT/CTR/ CCMT L (Using Danfoss M12 Cable)
White Black Red Green
–

ETS 8M Bipolar ETS 6

Orange yellow
Red Black
–

Orange Yellow
Red Black Grey

· All valves are driven in a bipolar mode with a 24 V supply chopped to control the current (Current driver).
· The stepper motor is connected to the “Stepper Valve” terminals (see terminal assign ment) with a standard M12 connection cable.
· To configure stepper motor valves other than Danfoss stepper motor valves, the correct valve parameters must be set as described in the Valve configuration section by selecting user defined valve.

Power supply and Battery input Analog inputs Sensor
Stepper valve
Digital input Digital output

Cable length Max 5m Max 10m Max 10m Max 30m Max 10m Max 10m

Wire size min/max (mm2)
AWG 24-12 (0.34-2.5 mm ) Torque (0.5-0.56 Nm)
AWG 24-16 (0.14-1.5 mm )
AWG 24-16 (0.14-1.5 mm )
AWG 24-16 (0.14-1.5 mm ) Torque (0.22-0.25 Nm)
AWG 24-16 (0.14-1.5 mm )
AWG 24-16 (0.14-1.5 mm )

· The max. cable distance between the controller and the valve depends on many factors like shielded/unshielded cable, the wire size used in the cable, the output power for the controller and the EMC.
· Keep controller and sensor wiring well separated from mains wiring. · Connecting sensor wires more than specified length may decrease the accuracy of
measured values. · Separate the sensor and digital input cables as much as possible(at least 10cm) from the
power cables to the loads to avoid possible electromagnetic disturbances. Never lay power cables and probe cables in the same conduit (including those in electrical panels)

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LED Alarm and Warning

2 Sec

Alarm/Warning LED indication

1 Sec

0 Sec

Powe r -/AC +/AC PE

1111111111111111
0000000000000000 1111000011110000 0101010101010101

Power
No Alarm/Warning A Alarm/Warning A 5 Sec initial boot

Valve position by LED indication

Normal valve operation

2 Sec

1 Sec

0 Sec

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Valve closed 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 2 Valve closing 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 Valve idle on target

B2 B1 A2 A1 Valv e A

B2 B1 A2 A1 Valv e B

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 Valve idle on target 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 5 Valve opening 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 6 Valve open
Valve open circuit or valve driver heat problem
01 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1010101010101010
Valve type not defined
1010101010101010 1010101010101010

General features and warning

Plastic housing features · DIN rail mounting complying with EN 60715 · Self-extinguishing V0 according to IEC 60695-11-10 and glowing/hot wire test at 960 °C according
to IEC 60695-2-12

Other features · To be integrated in Class I and/or II appliances · Index of protection: IP00 or IP20 on product, depending on sales number · Period of electric stress across insulating parts: long – Suitable for using in a normal pollution
environment · Category of resistance to heat and fire: D · Immunity against voltage surges: category II · Software class and structure: class A

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CE Compliance · Operating conditions CE: -20T70, 90% RH non-condensing · Storage conditions: -30T80, 90% RH non-condensing · Low voltage guideline: 2014/35/EU · Electromagnetic compatibility EMC: 2014/30/EU and with the following norms: · EN61000-6-1, (Immunity standard for residential, commercial, and light-industrial environments) · EN61000-6-2, (Immunity standard for industrial environments) · EN61000-6-4, (emission standard for industrial environments) · EN60730 (Automatic electrical controls for household and similar use)
General warnings · Every use that is not described in this manual is considered incorrect and is not authorized by the
manufacturer · Verify that the installation and operating conditions of the device respect those specified in the
manual, especially concerning the supply voltage and environmental conditions · All service and maintenance operations must therefore be performed by qualified personnel · The device must not be used as a safety device · Liability for injury or damage caused by the incorrect use of the device lies solely with the user
Installation warnings · Recommended mounting position: vertical · Installation must comply with local standards and legislation · Before working on the electrical connections, disconnect the device from the main power supply · Before carrying out any maintenance operations on the device, disconnect all electrical
connections – For safety reasons the appliance must be fitted inside an electrical panel with no live parts accessible · Do not expose the device to continuous water sprays or to a relative humidity greater than 90%. · Avoid exposure to corrosive or pollutant gases, natural elements, environments where explosives or mixes of flammable gases are present, dust, strong vibrations or shock, large and rapid fluctuations in ambient temperature that might cause condensation in combination with high humidity, strong magnetic and/or radio interference (e.g., transmitting antenna) · Use cable ends suitable for the corresponding connectors. After tightening connector screws, tug the cables gently to check their tightness – Minimize the length of probe and digital input cables as much as possible, and avoid spiral routes around power devices. Separate from inductive loads and power cables to avoid possible electromagnetic noises – Avoid touching or nearly touching the electronic components on the board to avoid electrostatic discharges · Use appropriate data communication cables. Refer to the EKE data sheet for the kind of cable to be used and setup recommendations · Minimize the length of probe and digital input cables as much as possible and avoid spiral routes around power devices. Separate from inductive loads and power cables to avoid possible electro magnetic noises · Avoid touching or nearly touching the electronic components fitted on the board to avoid electrostatic discharges
Product warnings · Use a class II power supply. · Connecting any EKE inputs to mains voltage will permanently damage the controller. · Battery Backup terminals does not generate power to recharge a device connected. · Battery backup – the voltage will close the stepper motor valves if the controller loses its supply
voltage. · Do not connect an external power supply to the digital input DI terminals to avoid damaging the
controller.

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Danfoss Related products Powersupply

Temperature sensor

Pressure transducer

AK-PS STEP3
ACCTRD Input: 230 V AC, 50 60 Hz Output: 24 V AC, available with 12 VA, 22 VA and 35 VA

PT 1000 AKS is a High precision temp. sensor AKS 11 (preferred), AKS 12, AKS 21 ACCPBT PT1000
NTC sensors EKS 221 ( NTC-10 Kohm) MBT 153 ACCPBT NTC Temp probe (IP 67 /68)

DST / AKS Pressure Tranducer Available with ratiometric and 4 20 mA.
NSK Ratiometric pressure probe
XSK Pressure probe 4 20 mA

Stepper motor valves

M12 cable

Backup power module

EKE is compatible with Danfoss stepper motor valves i.e Danfoss ETS 6, ETS, KVS, ETS Colibri®, KVS colibri®, CTR, CCMT, ETS 8M, CCMT L, ETS L

M12 Angle cable to connect Danfoss stepper motor valve and EKE controller

EKA 200 Koolkey

EKE 100 service cable

EKE 2U energy storage device for emergency valve shutdown during power outage.

EKA 200 is used as a service/copy key for EKE 100 controller

EKE 100 service cable is used to connect EKE 100 / 110 controller to EKA 200 Koolkey

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Documents / Resources

Danfoss EKE 110 1V Injection Controller [pdf] Installation Guide
EKE 110 1V Injection Controller, EKE 110 1V, Injection Controller, Controller

References

User Manual

Danfoss EKE 110 1V Injection Controller Installation Guide

EKE 110 1V Injection Controller

Technical Specifications

Product Usage Instructions:

Installation Guide:

Basic Application – Liquid Injection Mode (LI):

Wet and Vapor Injection Mode (VI/WI):

Frequently Asked Questions (FAQ):

Q: What is the recommended supply voltage for the product?

Q: How many valve outputs does the product have?

Q: Does the product support Modbus RS485 RTU
communication?

Documents / Resources

References

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