2408 2404

MODELS

Programmer/Controllers

Product data

• High stability control

• Up to twenty programs

• 16 ramp/dwell segments

• Heating and cooling

• Motorised Valve output

• Customised operation

• Load diagnostics

• Heater current display

• Multiple alarms on a single output

• One-shot tuner with overshoot inhibition

• 24V Supply option

• Auto/manual button

• DC retransmission

• 10amp output (2404 only)

• Transmitter supply

• Transducer supply

• PDSIO master setpoint retransmission or setpoint input

• Digital communications

• Plug-in from front

• Compliant with

European EMC and low voltage safety directives

• 3 Year warranty

Features

The 2404/2408 is a versatile, high stability temperature or process controller, with self and adaptive tuning, in 1/4 DIN and 1/8 DIN sizes. It comes with a standard 8 segment setpoint programmer, with options for one, four or twenty programs of 16 segments each.

It has a modular hardware construction which accommodates a wide range of plug-in modules. It will accept up to three I/O modules and two communication modules. Two

Digital inputs and an optional alarm relay are included as part of the fixed hardware build. The hardware is configurable for heating, cooling, alarms and other functions. A transmitter power supply option is available, as is a 5 or 10V transducer supply option.

The 2404/2408 is fully configurable on-site.

The programmer can have up to 8 programmable outputs which can be set in each segment to trigger external events. The two digital inputs can be used to run, hold and reset the program. Parallel operation of several programmers can be performed with synchronisation chosen at the end of any desired segments.

Precise control

An advanced PID control algorithm gives stable ‘Straight-line’ control of the process. A one-shot tuner is provided to set up the initial PID values and to calculate the overshoot inhibition parameters. In addition an adaptive tuner will handle processes with continually changing characteristics. On electrically heated loads, power feedback is used to stabilise the output power and hence the controlled temperature against supply voltage fluctuations. Dedicated cooling algorithms ensure optimum control of fan, water and oil cooled systems.

Universal input

A universal input circuit with an advanced analogue to digital convertor samples the input at 9Hz and continuously corrects it for drift. This gives high stability and rapid response to process changes. High noise immunity is achieved by rejection of 50/60Hz pick-up and other sources of noise. Sensor diagnostics are also provided. The input will accept all standard thermocouples, the Pt100 resistance thermometer and linear millivolts, milliamps or DC volts.

Input filtering from OFF to 999.9 seconds is included.

Customised operation

A custom LED display provides a bright, clear display of the process value and setpoint.

Tactile push buttons ensure positive operation. Access to other parameters is simple and easy to understand and can be customised to present only those parameters that need to be viewed or adjusted. All other parameters are locked away under password protection.

A front panel auto/manual button is provided.

Alarms

Up to four process alarms can be combined onto a single output. They can be full scale high or low, deviation from setpoint, rate of change or load failure alarms. Alarm messages are flashed on the main display. Alarms can be configured as latching or non-latching and also as ‘blocking’ type alarms which means that they will become active only after they have first entered a safe state.

Digital communications

Available with either EIA485 2 wire, 4 wire or EIA232. With industry-standard protocols including: Modbus®, Eurotherm Bisync, and SPI.

PDSIO Load diagnostic

OP1 OP2

2404

SP2 REM

(PDS Heater Break Detect)

PDSIO 2-wire

Connection

TE10 solid state relay

Supply

Heater

PDSIO Load diagnostics

PDSIO (Pulse Density Signalling I/O) is a major innovation in the

2404/2408. When used in combination with a Eurotherm

TE10 solid state relay (SSR), it allows the logic output of a

2404/2408 to transmit the power demand signal and simultaneously read back load fault alarms.

These alarms will be flashed as messages on the controller front panel.

Two alarm conditions will be detected, either SSR failure indicating an open or short circuit condition in the SSR and heater circuit failure indicating either fuse failure, heater open circuit or line supply absent.

PDSIO Setpoint transmission

Master Setpoint

Generator

2404

OP1 OP2

SP2 REM

(PDS Output)

PDSIO Master

Setpoint Transmission

OP1 OP2

2408

Slave Controllers

OP1 OP2

2408

PDSIO master setpoint transmission

PDSIO can be used to digitally transmit the setpoint profile to a number of slave Series 2000 controllers.

If any slave zone departs from the required setpoint by more than a pre-settable amount, a signal from any slave can be transmitted back to the master causing the program to freeze until the error is corrected. Digital accuracy is preserved using PDSIO.

SP2 REM

(PDS Input)

SP2 REM

(PDS Input)

Technical specification

Process inputs

General

Thermocouple

RTD/PT100

Process

Range

Sample rate

Calibration accuracy

Resolution

± 100mV and 0 to 10Vdc (auto ranging)

9Hz (110mS)

0.2% of reading, ±1 LSD or ±1°C/F

<1.6µV for ± 100mV range, <0.2mV for 10Vdc range

Linearisation accuracy No discernable error

Zero drift with ambient temperature < 0.1µV per °C for ±100mV range, 0.1mV per °C on 10Vdc range

Gain drift with ambient temperature < 0.004% of reading per °C

Input filter OFF to 999.9secs

Zero and span offset

Types

Cold junction compensation

Type

Bulb current

Lead compensation

Range

Type

Application

User adjustable over the full display range

See sensor inputs table

Automatic compensation typically >30 to 1 rejection of ambient temperature change

External references 0, 45 and 50°C

3-wire, Pt100

0.2mA

No error for up to 22 ohms balanced in all 3 leads

±100mV, 0 to 20mA or 0 to 10Vdc (All configurable between limits)

Linear, Square root or custom 8 point

Process value, remote setpoint, setpoint trim, power limit. Value pos. slidewire

330

Ω to 15Kohm

Digital inputs

Type

Application

Single and triple input: Contact closure or 24Vdc logic input

Manual select, 2nd setpoint, 2nd PID, keylock, setpoint rate limit enable,

Program run, hold, reset, synchronisation and fast run

Outputs

Relay

Logic

Triac

High Current

Analogue

Transmitter supply

Transducer supply

Rating: 2-pin relay Min: 12V, 100mA dc. Max: 2A, 264Vac resistive (single and dual modules available)

Rating: change-over, alarm relays Min: 6V, 1mA dc. Max: 2A, 264Vac resistive

Application Heating, cooling, alarms or program event

Rating

Application

18Vdc at 24mA (isolated and non-isolated versions available)

Heating, cooling, alarms or program event

PDSIO mode 1: Logic heating with load failure alarm

PDSIO mode 2: Logic heating with load/SSR failure alarm and load current

Rating

Application

Rating

Application

Range

Application

Rating

Voltage

Bridge resistance

Internal shunt resistance display

1A, 30 to 264Vac resistive (single and dual modules available)

Heating, cooling or program event

10amp, 264Vac resistive

Heating (2404 only)

0 to 20mA (into 600

Ω max) or 0 to 10Vdc (Isolated and non-isolated versions available)

Heating or cooling or process output. PV retransmission or setpoint retransmission

24Vdc at 20mA

5 or 10Vdc

300

Ω to 10k

Ω

30.1k

Ω at 25%, used for calibration of 350

Ω bridge

Communications

Digital

PDSIO

Transmission standard

Protocols

Setpoint input

Setpoint output

Update time

EIA 485 or EIA232 at 1200, 2400, 4800, 9600, 19,200 baud

Modbus® or Eurotherm Bisync or DeviceNet

Setpoint input from master PDSIO controller. Holdback to master controller

Master setpoint retransmission to slave PDSIO controllers

500mS

Control functions

Control

Tuning

Alarms

Modes

Application

Auto/manual

Setpoint rate limit

Cooling algorithms

One-shot tune

Adaptive Tune

Automatic droop compensation

Types

Modes

PID or PI with overshoot inhibition, PD, P only or On/Off

Heating, cooling or process output

Bumpless transfer or forced manual output

OFF to 999.9 degrees or display units per second, minute or hour

Linear; Water (non-linear); Fan (minimum on time), Oil and proportional only

Automatic calculation of PID and overshoot inhibition parameters

Continuous assessment of the PID values

Automatic calculation of manual reset value when using PD control

Full scale high or low. Deviation high, low, or band. Rate of change

Latching or non-latching. Normal or blocking action

Up to four process alarms can be combined onto a single output

Programmer parameters

Programs

Segments

Ramp

Dwell

Holdback

End Segment

Cycles

Event outputs

Timing accuracy

General

Display

Dimensions & weight

Supply

Temperature and RH

Panel sealing

Electromagnetic compatibility

Safety standards

Atmospheres

One, up to four or up to twenty programs

16 segments per program

Ramp Rate or Time to Target

Hours, Minutes or Seconds ( 0.1 to 999.9 )

Hours, Minutes or Seconds ( 0.0 to 999.9 )

Per Program or per Segment ( 0.0 to 999.9 )

Dwell, Reset or Set output level

Continuous or 1 to 999

Up to eight – relay, logic or triac

±2% of duration

Dual, 4 digit x 7 segment high intensity LED

96W x 96H x 150D mm. 600g

85 to 264Vac, 48 to 62Hz. 10watts max (or 20 to 29Vac or dc)

Operating: 0 to 55°C, RH: 5 to 95% non-condensing. Storage: -10 to 70°C

IP65

Meets generic emissions standard EN50081-2 for industrial environments

Meets general immunity requirements of EN50082-2(95) for industrial environments

EN61010, installation category 2. (voltage transients must not exceed 2.5kV)

Electrically conductive pollution must be excluded from the cabinet in which this controller is mounted. This product is not suitable for use above 2000m or in corrosive or explosive atmospheres without further protection.

Ordering information

Hardware coding

Model

Number

Function

Supply

Voltage

Module 1 Module 2 Module 3

Alarm

Relay

10amp

Output

Omit for 2408

Comms 1 Comms 2 Manual

Model Number

Panel size

2408 48 x 96mm

2404 96 x 96mm

Profibus units

2408f 48 x 96mm

2404f 96 x 96mm

Function (2408)

PID control

CC Controller only

CG 1x 8 seg Prog

CP 1x16 seg Prog

P4 4x16 seg Prog

CM 20x16 seg Prog (note 1)

On/Off Control

NF Controller only

NG 1x8 seg Prog

NP 1x16 seg Prog

N4 4x16 seg Prog

NM 20x16 seg Prog (note 1)

Motorised valve control

VC Valve positioner

VG 1x8 seg Prog

VP 1x16 seg Prog

V4 4x16 seg Prog

VM 20x16 seg Prog

(note 1)

Function (2404)

PID control

CC Controller only

CG 1x 8 seg Prog

CP 1x16 seg Prog

P4 4x16 seg Prog

CM 20x16 seg Prog (note 1)

On/Off Control

NF Controller only

NG 1x8 seg Prog

NP 1x16 seg Prog

N4 4x16 seg Prog

NM 20x16 seg Prog (note 1)

Motorised valve control

VC Valve positioner

VG 1x8 seg Prog

VP 1x16 seg Prog

V4 4x16 seg Prog

VM 20x16 seg Prog

(note 1)

Supply Voltage

VH 85-264Vac

VL 20-29Vac/dc

Module 1

XX Not fitted

Relay: 2-pin

R2 Fitted unconfigured

RH Heating output

RU Valve raise output

Relay: change over

R4 Fitted unconfigured

YH Heating output

RP Valve raise (note 6)

Or alarm 1 from table A

Logic: (Non-isolated)

L2 Fitted unconfigured

LH Heating output

M1 PDS Heater break detect (note 2)

M2 PDS Current monitoring (note 3)

Logic: (Isolated)

LO Single logic OP

Triac

T2 Fitted unconfigured

TH Heating output

TU Valve raise output

DC control (Isolated)

D4 Fitted unconfigured

H6 0-20mA PID heating

H7 4-20mA PID heating

H8 0-5V PID heating

H9 1-5V PID heating

HZ 0-10V PID heating

Digital I/O (unconfig’d)

TK Triple contact input

TL Triple logic input

TP Triple logic output

Dual relay

RR Fitted unconfigured

RD Heat + cool

RM VP raise & lower OPs

Dual triac

TT Fitted unconfigured

TD Heat + cool

TM VP raise & lower OPs

Logic+relay

LR Fitted unconfigured

LD Heat + cool

QC Mode 2 + cool

Logic+triac

LT Fitted unconfigured

GD Heat & cool

QD Mode 2 + cool

Transducer PS

G3 5Vdc transducer PSU

G5 10Vdc transducer PSU

Table A: alarm codes

FH High alarm

FL Low alarm

DB Dev. band alarm

DL Dev. low alarm

DH Dev. high alarm

Module 2

XX Not fitted

Relay: 2-pin

R2 Fitted unconfigured

RC Cooling output

RW Valve lower output

Relay: change over

R4 Fitted unconfigured

YC Cooling output

RL Valve lower (note 6)

PO Program event 1

(note 7)

PE Program END output

Or alarm 2 from table A

Dual relay

RR Fitted unconfigured

PP Program events 1 & 2

(note 7)

Logic: (Non-isolated)

L2 Fitted unconfigured

LC Cooling output

Logic: (Isolated)

LO Single logic OP

Triac

T2 Fitted unconfigured

TC Cooling output

TW Valve lower output

DC control (Isolated)

D4 Fitted unconfigured

C6 0-20mA PID cooling

C7 4-20mA PID cooling

C8 0-5V PID cooling

C9 1-5V PID cooling

CZ 0-10V PID cooling

Digital I/O (unconfig’d)

TK Triple contact input

TL Triple logic input

TP Triple logic output

Power supply

MS 24Vdc transmitter

DC retran. (Isolated)

Select from Table B

Potentiometer input

VU Fitted unconfigured

VS Valve position feedback

VR Setpoint input

Transducer PS

G3 5V transducer PSU

G5 10V transducer PSU

Table B: DC retransmission

D6 Fitted unconfigured

First character

V- PV retrans

SSetpoint retrans

O- Output retrans

ZError retrans

Second character

-1 0-20mA

-2 4-20mA

-3 0-5V

-4 1-5V

-5 0-10V

Module 3

XX Not fitted

Relay: 2-pin

R2 Fitted unconfigured

Relay: change over

R4 Fitted unconfigured

PO Program event 4

(not e 7)

PE Program END output

Or alarm 3 from table A

Logic (Non-isolated)

L2 Fitted unconfigured

Logic: (Isolated)

LO Single logic OP

Triac

T2 Fitted unconfigured

Dual relay

RR Fitted unconfigured

PP Program event 4 & 5

(note 7)

Digital I/O (unconfig’d)

TK Triple contact input

TL Triple logic input

TP Triple logic output

Power supply

MS 24Vdc transmitter

DC remote input

D5 Fitted unconfigured

W2 4-20mA setpoint

W5 0-10V setpoint

WP Second PV input

DC retran. (Isolated)

Select from Table B

Potentiometer input

VU Fitted unconfigured

VS Valve position feedback

VR Setpoint input

Transducer supply

G3 5V transducer PSU

G5 10V transducer PSU

Alarm Relay

XX Not fitted

Alarm 4 relay

RF Fitted unconfigured

Table A alarm options plus:

RA Rate of change alarm

PDS Alarms

LF Heater break detect

HF Current monitoring heater break

SF Current monitoring

SSR failure

PO Program event 7

(note 7)

PE Program END output

10amp Output

XX Not fitted

R6 Fitted unconfigured.

RH Heating

Comms 1

XX Not fitted

2 wire, RS485

Y2 Fitted unconfigured

YM Modbus protocol

YE EI-Bisync protocol

(note 1)

RS232

A2 Fitted unconfigured

AM Modbus protocol

AE EI-Bisync protocol

(note 1)

4 wire RS422

F2 Fitted unconfigured

FM Modbus protocol

FE EI-Bisync protocol

(note 1)

PDS Output

M7 Fitted unconfigured

PT PV retrans

TS Setpoint retrans

OT Output retrans

Profibus Module

PB High speed RS485

DeviceNet

DN DeviceNet

Comms 2

XX Not fitted

PDS Input

M6 Fitted unconfigured

RS Setpoint input

PDS Output

M7 Fitted unconfigured

PT PV retrans

TS Setpoint retrans

OT Output retrans

Manual

XXX No manual

ENG English

FRA French

GER German

NED Dutch

SPA Spanish

SWE Swedish

ITA Italian

Note 1.

Not available with profibus controllers

Note 2.

PDS heater break detect will transmit the power demand to a TE10S Solid State Relay and read back a heater break alarm.

Note 3.

PDS current monitoring will transmit the power demand signal to a TE10S Solid State Relay and read back load current and open and short circuit alarms.

Note 4.

Setpoint limits: Include the decimal position required in the displayed value. Up to one for temperature inputs, up to two for process inputs.

Configuration coding (optional)

Sensor

Input

Setpoint

Min note 4

Setpoint

Max note 4

Display

Units

Digital

Input 1

Digital

Input 2 Control Power

Options

Cooling Buttons Program

Sensor Input

Standard Sensor Inputs

J J Thermocouple

K K Thermocouple

T T Thermocouple

L L Thermocouple

N N Thermocouple-Nicrosil/Nisil

R R Thermocouple-Pt/Pt13%Rh

S S Thermocouple-Pt /Pt10%Rh

B B Thermocouple-Pt/Pt30%Rh -6%Rh

P Platinel II Thermocouple

Z RTD/PT100 DIN 43760

Factory downloaded input

C C Thermocouple - W5%Re/W26%Re (Hoskins)

D D Thermocouple - W3%Re/W25%Re

E E Thermocouple

1 Ni/Ni18%Mo Thermocouple

2 Pt20%Rh/Pt40%Rh Thermocouple

3 W/W26%Re (Engelhard) Thermocouple

4 W/W26%Re (Hoskins) Thermocouple

5 W5%Re/W26%Re (Engelhard) Thermocouple

6 W5%Re/W26%Re (Bucose) Thermocouple

7 Pt10%Rh/Pt40%Rh Thermocouple

8 Exegen K80 I.R. pyrometer

Process Inputs (scaled to setpoint min and max)

F -100 to +100mV linear

Y 0 to 20mA linear (note 4)

A 4 to 20mA linear (note 4)

W 0 to 5Vdc linear

G 1 to 5Vdc linear

V 0 to 10Vdc linear

Setpoint

Min

Setpoint

Max

Min °C Max

-210 1200

-200 1372

-200

-200

-250

-50

-50

400

900

1300

1768

1768

0

0

1820

1369

-200 850

Min °C Max

0 2319

0

-250

0

0

0

2399

1000

1399

1870

2000

0

10

0

200

-45

2010

2300

2000

1800

650

Min °C Max

-1999 9999

-1999

-1999

-1999

9999

9999

9999

-1999

-1999

9999

9999

Note 5.

An external 1% current sense resistor is supplied as standard. If greater accuracy is required, a

0.1% 2.49

Ω can be ordered as part no. SUB2K/249R.1.

Note 6

Only available with Profibus controller.

Note 7.

Not available with 8 segment programmer

Display Units

C Celsius

F Fahrenheit

K Kelvin

X Linear input

XX Disabled

AM Manual select

SR Remote SP select

S2 Second setpoint

EH Integral hold

AC Alarm acknowledge

RP SP rate limit enabled

RN Run program

HO Hold program

RE Reset program

RH Run/hold prog

KL Keylock

NT Run/Reset

TN Reset/Run

HB Program holdback

Digital Input 1 & 2

P2 Second PID

ST One shot tune enable

AT Adaptive tune enable

FA Select full access level

RB Simulates UP button

LB Simulates DOWN button

SB Simulates SCROLL button

PB Simulates PAGE button

B1 Least sig. BCD digit

B2 2nd BCD digit

B3 3rd BCD digit

B4 4th BCD digit

B5 5th BCD digit

B6 Most significant digit

SY Standby-all O/Ps OFF

SC Prog synchronisation

SG Skip segment

(without changing

SP)

PV Select PV2

AG Advance to end of segment

(& step to target SP)

M5 CTX (mode 5)

Input 2 only

Options

Control action

XX Reverse acting (standard)

DP Direct acting

Power feedback

XX Enabled on logic, relay & triac heating

PD Feedback disabled

Cooling options

XX Linear cooling

CF Fan cooling

CW Water cooling

CL Oil cooling

CO On/Off cooling

Front panel buttons

XX Enabled

MD Auto/manual disabled

MR Auto/man & run/hold disabled

RD Run/hold disabled

Programmer time units

XX Dwell & ramp in mins

HD Dwell time in hours

HR Ramp rate in units/hrs

Example ordering code:-

2408 - CC - VH - LH - RC - FL - FH - YM - TS - K - 0 - 1000 - C - AM - S2 - XX - XX - XX - MD - XX

2408, PID Controller, 85 to 264Vac, Logic heating, Relay cooling, Low alarm relay, High alarm relay, RS485, Modbus comms,

PDSIO setpoint retrans, Type K Thermocouple, 0 to 1000°C, Auto/manual select, 2nd setpoint select, Manual button disabled.

96

Dimensional details

All dimensions in mm

2408

150

48

2408

OP1 OP2

SP2 REM

AUTO

MAN

Panel cut-out

-0.0

+0.8

92 x

45

-0.0

+0.6

2404

96

96

OP1

OP2

SP2

REM

2404

Panel cut-out

92 x 92

-0.0

+0.8

150

Rear terminal connections

Modules 1, 2 and 3 are plug-in modules.

They can be any one of the types shown in the ordering information on previous pages

2408 2404

2C

2D

3A

3B

3C

3D

1A

1B

1C

1D

2A

2B

1

M

O

D

U

L

E

M

O

D

U

L

E

2

U

L

E

M

O

D

3

JA

JB

JC

C

O

M

M

S

2

JD

JE

JF

HA

HB

HC

C

O

M

M

S

1

HD

HE

HF

L

N

Line

100 to 240Vac

Neutral

Earth

LA

Input 1

Input 2

LB

LC

Common

AA

AB

AC

VI

V+

V-

Alarm relay

Thermocouple

RTD/

PT100

+

PV

-

24

N

+

20 to 29Vac/dc

-

Neutral

Earth

Low voltage supply

Line

Load

4D

5A

5B

4A

4B

4C

5C

5D

6A

6B

6C

6D

C

U

R

R

E

N

T

H

I

G

H

O

U

T

P

U

T

1D

2A

2B

1A

1B

1C

2C

2D

3A

3B

3C

3D

1

U

L

E

M

O

D

U

L

E

M

O

D

2

M

O

D

U

L

E

3

HA

HB

HC

M

S

1

C

O

M

HD

HE

HF

JA

JB

JC

M

S

2

C

O

M

JD

JE

JF

L

N

Line

100 to 240Vac

Neutral

Earth

LA

Input 1

LB

Input 2

LC

Common

24

N

AA

AB

AC

VI

V+

V-

Alarm relay

Thermocouple

RTD/

PT100

+

PV

-

+

20 to 29Vac/dc

-

Neutral

Earth

Low voltage supply

EUROTHERM LIMITED UK

Faraday Close Durrington Worthing BN13 3PL

Tel. +44 (0)1903 268500 Fax +44 (0)1903 695666

Email [email protected]

www.eurotherm.co.uk

EUROTHERM US

741-F Miller Drive Leesburg VA 20175-8993

Tel. 1-703-443-0000 Fax 1-703-669-1300

Email [email protected]

www.eurotherm.com

EUROTHERM WORLDWIDE www.eurotherm.co.uk

© Copyright Eurotherm Limited 2004

All rights are strictly reserved. No part of this document may be reproduced, modified, or transmitted in any form by any means, nor may it be stored in a retrieval system other than for the purpose to act as an aid in operating the equipment to which the document relates, without the prior written permission of Eurotherm limited.

Eurotherm Limited pursues a policy of continuous development and product improvement. The specifications in this document may therefore be changed without notice. The information in this document is given in good faith, but is intended for guidance only. Eurotherm Limited will accept no responsibility for any losses arising from errors in this document.

Part No. HA026553 Issue 3.1

2408/2404 Data sheet Printed in England 08.04