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Delta DT4848 User Manual

Delta DT4848
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http://www.delta.com.tw/industrialautomation/
DELTA Temperature Controller
DTB Series
User Manual
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Delta DT4848 Specifications

General IconGeneral
BrandDelta
ModelDT4848
CategoryTemperature Controller
LanguageEnglish

Summary

General Safety Precautions

Electric Shock Hazards

Warnings and precautions to prevent electric shock during operation and maintenance.

Application and Environmental Warnings

Advises on using the controller in suitable environments and potential dangers.

Display, LED and Pushbuttons

Component Overview

Identifies and explains the function of the controller's display, LEDs, and buttons.

Ordering Information

Model and Panel Size

Lists DTB series models and their corresponding panel dimensions (W×H).

Output and Function Options

Details selections for output groups and optional features like EVENT inputs and CT.

Specifications

Technical Specifications

Details input voltage, power, memory, display, sensor types, control modes, and outputs.

Temperature Sensor Type and Temperature Range

Sensor Input Details

Lists register values and temperature ranges for various analog and RTD/Thermocouple sensors.

Operation

Operating Modes and Navigation

Explains the three operation modes and how to navigate between them using keys.

Setting Method Overview

Describes the process of selecting desired functions and changing settings using navigation keys.

Control Parameters

Heating/Cooling and Dual Loop Settings

Details parameters for heating/cooling control cycles, dual loop output, and valve feedback.

Valve Control Settings

Explains settings related to valve feedback, dead band, and regulation for valve control.

Dual Loop Output Control (Heating / Cooling Control)

Dual Loop Operation Modes

Explains selection of heating, cooling, or dual loop control based on output group configuration.

PID Control Mode Selection

Details PID mode selection (n=0~4) and parameter settings like Proportion Band and Ti.

Pattern and Step Editing

Covers editing patterns and steps for PID program control, including set point and time.

Alarm Outputs

Alarm Output Configuration

Describes the setup of alarm outputs, covering set values, alarm types, and operation logic.

Alarm Type Descriptions

Explains deviation, absolute value, and reverse deviation alarm types and their conditions.

Special Functions

CT Input and Event Handling

Explains the CT function for current measurement and EVENT inputs for RUN/STOP and setting switch.

PID Program Control (Ramp/Soak Program Control)

Program Control Parameters

Describes PID program control, patterns, steps, link patterns, and cycle parameters.

Program Execution and Display

Details how to execute PID programs, manage steps, and interpret the display.

PID Control

PID Parameter Selection

Explains the selection of PID parameter groups and storage of AT values.

Valve Control Setup

Details settings for valve control, including feedback and auto-tuning.

RS-485 Communication

Communication Settings

Covers supported transmission speeds, formats, protocols, and function codes for RS-485.

Data Register Addresses

Lists addresses and content for reading/writing process values, set points, and control parameters.

Bit Register Addresses

Details addresses for communication write selection, unit display, decimal point, and AT settings.

Panel Cutout and Terminals Identification

Panel Cutout Dimensions

Provides cutout dimensions in millimeters for DTB4824, DTB4848, and DTB4896 models.

Terminal Identification

Identifies terminals for DTB4824, DTB4848 (with/without EVENT/CT), and DTB4896/DTB9696.

External Dimensions

Dimensional Drawings

Provides external dimension drawings for DTB4824, DTB4848, DTB4896, and DTB9696 models.

Mounting

Mounting Methods

Instructions for panel cutout installation using mounting brackets and CT wiring.

Mounting Bracket Installation

Step-by-step guide for inserting and securing the mounting bracket to the controller.

Communication Error Code Response

Error Code Lookup

Table of communication error codes, PV read back values, and their meanings.

Display Message Interpretation

Explains normal and error display messages for PV, SV, and EEPROM status.

Contact Information

Regional Contact Details

Provides contact addresses, phone, and fax numbers for Delta offices in Asia, North/South America, and Europe.

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