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Danfoss EKC 202 User Manual

Danfoss EKC 202
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Controller for temperature control
- EKC 202
Manual
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Danfoss EKC 202 Specifications

General IconGeneral
Power Supply24 V AC/DC
Relay Outputs2
Analog Inputs2
Digital Inputs2
Enclosure RatingIP20
OutputRelay
HysteresisAdjustable
MountingDIN rail
CommunicationRS485
ApplicationRefrigeration
TypeElectronic temperature controller
Sensor TypePt 1000
Protection ClassII
Ambient Temperature Range-10 - 55°C

Summary

Introduction to the EKC 202 Controller

Application and Operational Principles

Details controller use in refrigeration, cold rooms, and its basic operational principle.

Key Controller Advantages

Highlights integrated functions, IP65 rating, digital inputs, programming, HACCP, and calibration.

Defrost Operations and Control

Methods for Initiating Defrost

Various methods to start defrost: interval, time, manual, S5-temp, schedule, network.

Digital Input Functionality

Using digital input for door contact, defrost start, regulation control, and case cleaning.

Case Cleaning Procedure

Step-by-step guide for cleaning the refrigeration appliance.

Defrost on Demand Features

Automatic defrost based on refrigeration time or S5 temperature.

Controller User Interface

Display and Indicator LEDs

Understanding the controller's display and light-emitting diodes (LEDs) for status.

Button Navigation and Defrost Display

How to operate buttons, navigate menus, and interpret defrost indications.

Service and Error Management

Error and Alarm Diagnostics

Lists and explains fault (E-codes), alarm (A-codes), and copying errors.

Troubleshooting Error Codes

Interpreting fault (E-codes), alarm (A-codes), and copying errors.

Alarm Priority Settings

Setting the importance level for individual alarms (0, 1, 2, or 3).

Compressor Protection Measures

Recommended parameters c01 and c02 for preventing compressor breakdown.

Controller Functions Overview

Alarm and Control Parameters

Compressor Running Time Control

Setting minimum ON and OFF times for compressor operation.

Advanced Defrost Management

Defrost Sensor Selection and Demand Logic

Selecting defrost sensor and initiating defrost based on time or S5 temperature.

System Control Configuration

System Configuration Options

Electrical Connections

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