EKE-1B Danfoss expansion valve driver

EKE-1B Danfoss expansion valve driver

The flexible pre-programmed EKE superheat controller from Danfoss provides ultimate software control, allowing you to tailor the performance of your system to your exact requirements. EKE is ideal for controlling a wide range of commercial air conditioning and refrigeration applications, such control helps you to achieve the highest efficiency in the system reducing the operational cost by up to 20% with minimal effort. EKE is generally used where there is a requirement for accurate control of superheat or temperature control in connection with air conditioning and refrigeration. The superheat is regulated to the lowest possible value within a short period of time. It regulates the superheat of the evaporator by charging optimally even when there are great variations of load resulting in reduction of energy consumption and operational cost. EKE superheat controller can be used in HVAC and refrigeration applications such as Chillers, Processing plant / Cabinet cooling, Cold store (air coolers), A/C plant / Air conditioning, Heat pumps. Residential Heat Pump, Transport cooling, Stepper Motor Driver and etc.

EKE 1B,the flexible pre-programmed superheat controller from Danfoss offers the best possible evaporator superheat regulation with precise adjustment to system operating conditions. EKE 1B is ideal for controlling superheating on evaporators in commercial air conditioning units and refrigeration application and can support all danfoss electronic stepper motor valves ETS6, ETS series, ETS-C (Colibri), KVS, CCM, CCMT and CTR. EKE 1B has CAN-RJ,CAN ports and gateway port. Mounting method of EKE series is DIN rail. 

EKE 1B applications

EKE 1B is used in three main applications :

• Driver mode

 A master controller is commanding the valve open degree to the EKE 1B controller. The control signal can be fed by Analog signal 0 – 10 V, a 4 – 20 mA or Bus communication via RS485 (Modbus RTU).

• Superheat control mode

EKE 1B can use as a PI controller that controls the superheat of the evaporator based on a
Suction pressure and temperature sensors. In superheat mode the controller will control the superheat to be stable
and close to the superheat setting. If superheat is too low the flow in the expansion is decreased and superheat
will be higher

• Temperature control mode

The temperature control is an ON/OFF thermostat that opens/closes the stepper valve or modulating thermostat that regulates temperature more smoothly following a temperature reference point. The temperature control can be accomplished via a signal from temperature sensor placed in the air flow before the evaporator or the sensor placed in the air flow after the evaporator.

EKE 1B Accessories

• LCD keyboard remote display MMI
• NSK-BE020I pressure transducer
• AK-PS transformer
• ETS 24C colibri electronic expansion valve
• AKS12 PT1000 temperature sensor 

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