Azbil DCP31 User Manual

Thank you for purchasing an Azbil
Corporation product.
This manual contains information
for ensuring the correct use of this
product. It also provides necessary
information for installation, main-
tenance, and troubleshooting.
This manual should be read by
those who design and maintain
equipment that uses this product.
Be sure to keep this manual nearby
for handy reference.
DCP31
DIGITRONIK
Digital Program
Controller
User's Manual
No. CP-UM-1757E
(Not for use in Japan)

Azbil DCP31 Specifications

General

Type	Digital Indicating Controller
Control Method	PID control
Input Type	Thermocouple, RTD, DC voltage, DC current
Display	LED display
Communication	RS-485
Output Type	Relay, Voltage pulse, Current
Power Supply	100 to 240 VAC
Control Output	Relay contact, Voltage pulse, Current
Operating Temperature	-10 to 50°C

Summary

Safety Requirement

Equipment Installation

Safety Precautions

Organization of This User's Manual

Chapter 1. GENERAL

Chapter 2. NAMES & FUNCTIONS OF PARTS

Identifies and describes the components and parts of the DCP31.

Chapter 3. MOUNTING

Instructions on how to mount the DCP31 on control panels.

Chapter 4. WIRING

Precautions and procedures for wiring the DCP31 to a control system.

Chapter 5. FUNCTIONS

Description of the controller's various functions and capabilities.

Chapter 6. OPERATION

How to switch display states, select, and run programs.

Chapter 7. PARAMETER SETUP

How to set up parameters and understand their meanings.

Chapter 8. PROGRAM SETUP

How to set up programs and their settings.

Chapter 9. MAINTENANCE & TROUBLESHOOTING

Checks for proper operation and remedies for troubles.

Chapter 11. SPECIFICATIONS

General specifications, performance, and external dimensions.

Chapter 1. GENERAL

1 - 1 Features

1 - 2 Basic Function Blocks

1 - 5 Model Numbers

Chapter 2. NAMES & FUNCTIONS OF PARTS

2 - 1 Structure

2 - 2 Console

Details the controller's console, including basic display states and display elements.

Keys

Explains the function and operation of each key on the DCP31 console.

Inputs

Chapter 3. MOUNTING

3 - 2 Panel Cutout Dimensions

3 - 3 Mounting

General mounting instructions and advice on suitable mounting locations.

Mounting method

Chapter 4. WIRING

4 - 1 Wiring Precautions

Essential safety precautions to follow before and during wiring the DCP31.

4 - 3 Terminal Connections

4 - 4 Layout of Terminals and Recommended Lead Draw-out Direction

4 - 5 Connecting the Ground and Power Supply

Instructions for connecting the ground and power supply, including noise prevention measures.

4 - 6 Wiring of Standard and Add-on Terminal Base

Illustrates the standard and add-on terminal layouts for wiring.

4 - 7 Connecting Inputs (analog inputs)

Detailed guidance on connecting various analog sensor inputs to the DCP31.

4 - 8 Connecting control outputs (outputs 1, 2)

Instructions for connecting relay and current control outputs of the DCP31.

4 - 9 Connecting auxiliary outputs (outputs 2, 3)

Wiring instructions for auxiliary outputs 1 and 2 on different model types.

4 - 10 Connecting Event Output (relay output)

Wiring details for event outputs EV1, EV2, and EV3 using relay contacts.

4 - 11 Connecting Time Event Output (open-collector)

Wiring instructions for optional time event outputs T1 to T5 using open-collector.

4 - 12 Connecting External Switch (RSW) Input

How to wire external switch inputs (RSW) to the DCP31.

4 - 13 Connecting for Communications

Instructions for connecting the DCP31 for RS-485 communications.

Chapter 5. FUNCTIONS

5 - 1 Data

5 - 2 Program Patterns

Explains program patterns, segments, SP settings, and time settings for RAMP-X system.

Events 1 to 3, Time events 1 to 5

Describes event types (PV, controller status, time, segment No.) and their settings.

PID set selection

How to select PID sets for control operation, either by segment designation or auto-switching.

G.Soak (guarantee soak)

PV start

Cycle

Pattern link

5 - 3 Modes

Details the available operation modes: Program operation and Constant-value operation.

AUTO

MANUAL

5 - 4 Controller and Programmer

Explains how the DCP31 can be used as either a controller or a programmer.

5 - 5 Input Processing Functions

Details the sequence of input processing steps performed by the DCP31.

5 - 6 Output Processing Functions

Describes how control output is processed based on the model's output type.

Chapter 6. OPERATION

6 - 1 Turning the Power ON

Describes the controller startup sequence and initial operations when power is applied.

6 - 2 Switching the Basic Display

How to navigate and switch between different display states on the controller console.

Display in program operation mode

Display in constant-value operation mode

6 - 3 Program Selection

Instructions on how to select a program number on the console.

6 - 4 External Switch (RSW) Operations

Details the functions assigned to external switch inputs (RSW) and their detection methods.

Read timing

6 - 5 Manual Operation and Auto-tuning

How to perform manual operation and use the auto-tuning function.

Chapter 7. PARAMETER SETUP

7 - 1 Parameter Setup

Steps for entering and navigating the parameter setup menu.

7 - 2 How to Use PARA

Explains how to use the PARA key to register and call up frequently used parameter items.

Variable parameter settings “P A R A”

Lists and describes variable parameters, including key lock and program protection settings.

PID parameter settings “P I d”

Details PID parameters for various sets, including proportional band, reset time, and rate time.

Event configuration data settings “E v”

Configuration data for event types (PV, controller status, time) and their settings.

E d i (event 1 to 3 standby)

D L i (event 1 to 3 ON delay time)

Disturbance inhibit proportional band (PID set 2)

Setup data settings “S E t”

Setup data for control action, temperature unit, input range type, and decimal point position.

C 1 1 (PID set autoswitching (CH1))

C 5 5 (PARA assignment item 1)

Description of setup data settings

Chapter 8. PROGRAM SETUP

8 - 1 Program Setup

Instructions on how to enter and perform program setup on the DCP31.

Mode transition

Diagrams illustrating mode transitions within the program setup state.

Programming map

Setting up pattern items

Setting up events 1 to 3 items

When event type is time event

Setting up PID set No. items

Setting up G.Soak (guarantee soak) items

Setting up G.Soak time-out items

Setting up PV start items

Setting up cycle items

Setting up pattern link items

Deleting programs

Inserting and deleting segments

8 - 2 Copying Programs

8 - 3 General Reset

How to perform a general reset to factory settings and clear programs.

Chapter 9. MAINTENANCE & TROUBLESHOOTING

9 - 1 Maintenance

9 - 2 Self-diagnostics and Alarm Code Display

Explains self-diagnostics functions and how alarm codes are displayed.

Intermittent self-diagnostics during operation

Alarm code display

Alarm categories

The controller does not change to RUN mode by pressing RUN/HOLD in the basic display state

The controller does not change to HOLD mode by pressing RUN/HOLD in the basic display state

The controller cannot be reset by pressing PROG + RUN/HOLD in the basic display state

The program is not advanced by pressing PROG + DISP in the basic display state

The controller does not change to FAST mode by pressing FUNC + in the basic display state

The controller does not change to MANUAL mode by pressing A/M in the basic display state

The controller does not change to AUTO mode by pressing A/M in the basic display state

Auto-tuning (AT) is not started by pressing AT in the basic display state

Auto-tuning (AT) is not canceled by pressing AT in the basic display state

The controller does not enter the setting entry state by pressing ENT in the parameter setup state

The controller does not change to program setup state by pressing FUNC + PROG in the basic display state

Insertion/deletion of segments cannot be confirmed by pressing FUNC + ENT in program setup state

Program deletion cannot be confirmed by pressing FUNC + CLR while entering pattern items in program setup state

The program cannot be copied by pressing + PROG in the basic display state

General reset is not applied by pressing FUNC + CLR + DISP in the basic display state

Motor Adjustment is Impossible

9 - 5 Replacing the Battery

Safety precautions and steps for replacing the controller's backup battery.

Replacement procedure

Detailed step-by-step procedure for replacing the battery.

Chapter 11. SPECIFICATIONS

11 - 1 Specifications

External Switch (RSW) Input

Control

Output

Event/Time event Output

Commu nications

General Specifica tions