DIN rail actuator EK-HC1-TP

Description
The Ekinex EK-HC1-TP actuator/controller is designed to control a fan coil unit for space air-conditioning. The device can operate as a simple actuator in combination with a KNX room thermostat or as a regulator/actuator acquiring temperature from a KNX room sensor or from a sensor connected to an analog input. It is suitable for 2- or 4-pipe hydraulic distribution systems with ON/OFF control of one or two thermal actuators for shut-off valves and a fan with three discrete speeds or a brushless motor. Outputs not used for fan coil control can be configured as binary output channels. The unit includes 3 inputs freely configurable as analog or digital. A membrane keypad enables manual control and includes status LEDs; a button allows switching between automatic and manual operation. The device features an integrated KNX bus communication module and is designed for mounting on a 35 mm DIN rail. Power is supplied via the KNX bus; mains supply 230 Vac is additionally required for operation.

Technical data
Power

• Supply for loads: 230 Vac 50/60 Hz
• Supply for electronics: 30 Vdc via KNX bus

Inputs

• 3 inputs freely configurable to read temperature values from passive sensors (NTC 10 kΩ at 25 °C) or as potential-free binary inputs

Outputs

• 1 output to drive a brushless motor with 0-10 V control signal
• 3 interlocked relays to control a fan at 3 discrete speeds (or configurable as binary outputs for other applications)
• 2 SPST relays for ON/OFF control of two valve actuators (2- or 4-pipe systems)

Supply
The supply includes a terminal for connection to the bus line.

Functions / Features

• Plastic enclosure
• Programming button and LED on the front
• Membrane keypad with LEDs indicating output status
• Button to switch automatic/manual operation
• Connection to bus line via KNX terminal
• Inputs, outputs and 230 Vac supply connected via screw terminals
• Climatic classification 3K5 and mechanical 3M2 (according to EN 50491-2)
• Overvoltage category III (according to EN 60664-1)
• Pollution degree 2 (according to IEC 60664-1)
• Mounting on 35 mm DIN rail (according to EN 60715)
• Device width: 4 DIN modules (1 UM = 18 mm)
• Protection degree IP20 (device installed)
• Weight: 205 g

Configuration and commissioning
A detailed list of parameters is provided in the device application manual. ETS5 or later is required for configuration and commissioning. Application program for ETS: APEKHC1TP##.knxprod (## = version).

Characteristics / technical specifications

• Type: fan coil controller/actuator for 35 mm DIN-rail mounting
• Load supply: 230 Vac 50/60 Hz
• Electronics supply: 30 Vdc via KNX bus
• Inputs: 3 configurable inputs (analog NTC 10 kΩ at 25 °C or potential-free digital)
• Outputs: 1 x 0-10 V for brushless motor; 3 interlocked relays for 3-speed fan; 2 SPST relays for ON/OFF valves
• Communication interface: integrated KNX bus
• Dimensions: 4 DIN modules (1 UM = 18 mm)
• Protection degree: IP20
• Classifications: climatic 3K5, mechanical 3M2
• Overvoltage category: III; Pollution degree: 2
• Weight: 205 g
• Accessories included: terminal for bus line connection