Controller 1

Description

The ECF 4326565 is an fully configurable controller which is specially design for room temperature controls in fan coil units that serving small zone in the building such as individual office and hotel bedroom. The control application includes temperature set point, control of actuator for valve and fan speeds. The controller contains a library of the most frequently used fan coil control applications including multiple stages of reheat which enable user to select the most appropriate control library with minimal or no user reprogramming is required. The ECF 4326565 is a fully configurable controller based on the ARM series micro-controller with an on-board clock and two RS-485 communications Bus. The six digital outputs 240VAC relays (7 Amps) are ideal for driving contractors and single phase fan circuits directly. The two analog outputs (0 – 10 VDC or 4 – 20 mA) are used for control modulating type cooling valve or hot water reheat valve. The three digital inputs are be used for pulse counting and reading contact closures directly. The four analog inputs are be used for reading the additional temperature sensors signals.

  • 10-bit, Analog-to-Digital
    Converter
  • 8-bit, Digital-to-Analog
    Converter
  • Power Supply – 240 VAC
    • Surface Mount Device
    (SMD)
  •  Analog Input Monitoring
  • Digital Input Monitoring
  • Maintained / Pulse Digital
    Output Control
  • Analog Output Modulating
    Control
  • Optional Demand Limiting
    Control
  • Logic Based Control
  • Alarm Monitoring
  • Trend Logging
  • On-board input current
    sensing up to 5 amps
  • On-board IR Receiver
    input for external control

The fact that the controller is fully programmable ensures complete control and monitoring application flexibility. The same standard controller hardware can be used for control and monitoring of the following applications:

  • Lighting Control Systems.
  • Other types of programs can be developed according to
    customers’ specifications.

Technical Specifications

Supply Voltage/Power Consumption: 240 VAC / 15VA (plus loads)
Analog Inputs: 4 x 10K NTC thermistors. Accuracy: 0.1% full scale or 4 x for reading contact closures directly
Digital Inputs: 3 x for reading contact closures directly complete with surge protection (Photo Coupler Type)
Analog Outputs: 2 x 0-10VDC or 2 x 0 to 20mA. Resolution: 0.4% full scale
Digital Outputs: 6 x Relay Dry Contacts with contact rating of 240VAC maximum 7 Amps (2 Relay Outputs have Normally Open & Normally Close Contact).
IR Input Channels: 1 x Input Channels (valid service distance up to 6 meters)
Supported IR Carrier Frequency: 32 kHz, 36 kHz, 38 kHz, 40 kHz and 56 kHz
IR Command Storage: 256
Microprocessor: 32 Bits ARM Micro-Controller (128 KB SRAM & 256 KB FLASH)
Communications: 2 x RS-485 Bus (One System Bus). Baud Rate: 9600~76.8Kbps.

Maximum Length: 4000 ft (1.2km)

Freely Programmable: Yes, using DLC Software Tool
Indication: 1 x Green LED for Power / 3 x Green LED for Digital Inputs /  6 x

Green LED for Digital Outputs

Cover Dimension: 180mm x 120mm x 76mm
Weight: 835g
Ambient limits:
a) Storage: -10 to 90 ºC; less then 90% rh, non-condensing
b) Operating: 0 to 70 ºC; 10 to 85% rh, non-condensing

Controller Physical Dimension

All connections to the Open Control System Controller are via removable plug-in terminals for easy installation and servicing.

Resources

Pdf