Chromalox TEMPERATURE CONTROLLER 1604-7 Manuel utilisateur

1604-7

Temperature Controller with mA Output

Issue date rUSER'S MANUAL

May 2000

Chromalox

1604

1604-7-0-AB.p65 5/16/00, 10:50 AM1

CONTENTS

MOUNTING REQUIREMENTS ........................... 1

OUTLINE AND CUT OUT DIMENSIONS ........... 2

CONNECTION DIAGRAMS ................................ 3

PRELIMINARY HARDWARE SETTINGS ........... 9

CONFIGURATION PROCEDURE .................... 10

OPERATIVE MODE .......................................... 18

Display function .......................................... 18

Indicators ................................................... 18

Pushbutton function during operating mode 19

Enable/disable the control output ............... 19

SP-SP2 selection ....................................... 19

Direct access to the set point ..................... 20

Manual function .......................................... 20

Lamp test ................................................... 20

Serial link ................................................... 21

SMART function ......................................... 21

OPERATIVE PARAMETERS ............................ 22

ERROR MESSAGES ........................................ 25

GENERAL INFORMATIONS ............................ 27

MAINTENANCE ................................................ 31

DEFAULT PARAMETERS ............................... A.1

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III

Model identification

Model

1604 1/16 DIN Temperature Controller

Code Output 1 - Heat or Cool

7 20 mA Output

Code Output 2 - Alarm

1 Relay, 2 Amp at 250 VAC (Resistive load)

Code

0 None

1 Out #3, 2 Amps at 250 V AC (Resistive load)

2 Heater Break Down input, Out #3

3 RS 485 Digital communications, Out #3

4 RS 485 Digital comm., Heater Break Down input, Out #3

Code Instrument Power

3 100 - 240 Vac

5 24 Vac/dc

Code

0 Add to complete model number

1601 6 1 0 3 0 Typical Model Number

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MOUNTING REQUIREMENTS

Select a mounting location where there is

minimum vibration and the ambient temperature

range between 0 and 50 °C.

The instrument can be mounted on a panel up to

15 mm thick with a square cutout of 45 x 45 mm.

For outline and cutout dimensions refer to Fig. 2.

The surface texture of the panel must be better

than 6,3 mm.

The instrument is shipped with rubber panel

gasket (50 to 60 Sh).

To assure the IP65 and NEMA 4 protection, insert

the panel gasket between the instrument and the

panel as shown in fig. 1.

While holding the instrument against the panel

proceed as follows:

1) insert the gasket in the instrument case;

2) insert the instrument in the panel cutout;

3) pushing the instrument against the panel,

insert the mounting bracket;

4) with a screwdriver, turn the screws with a

torque between 0.3 and 0.4 Nm.

Fig. 1

Panel

bracket

Screw

Gasket

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OUTLINE AND CUT OUT

DIMENSIONS

Fig. 2 OUTLINE AND CUT-OUT DIMENSIONS

3.0

(75)

2.4

(60)

1.77

(45)

1.77

(45)

1.9

(48)

2.2

(56)

4.8

(122)

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CONNECTION DIAGRAMS

Connections are to be made with the instrument

housing installed in its proper location.

Fig. 3 .A REAR TERMINAL BLOCK

A) MEASURING INPUTS

NOTE: Any external components (like zener

barriers etc.) connected between sensor and

input terminals may cause errors in measurement

due to excessive and/or not balanced line

resistance or possible leakage currents.

TC INPUT

Fig. 4

NOTE:

1) Don’t run input wires together with power

cables.

2) For TC wiring use proper compensating cable

preferable shielded.

3) when a shielded cable is used, it should be

connected at one point only.

Shield

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LINEAR INPUT

Fig. 6 mA, mV AND V INPUTS WIRING

NOTE:

1) Don’t run input wires together with power

cables.

2) Pay attention to the line resistance; a high line

resistance may cause measurement errors.

3) When shielded cable is used, it should be

grounded at one side only to avoid ground loop

currents.

4) The input impedance is equal to:

< 5 Wfor 20 mA input

> 1 MWfor 60 mV input

> 200 kWfor 5 V input

> 400 kWfor 10 V input

RTD INPUT

Fig. 5 RTD INPUT WIRING

NOTE:

1) Don’t run input wires together with power

cables.

2) Pay attention to the line resistance; a high line

resistance may cause measurement errors.

3) When shielded cable is used, it should be

grounded at one side only to avoid ground loop

currents.

4) The resistance of the 3 wires must be the

same.

RTD

9 8

RTD

Shield

+mA,

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B) LOGIC INPUT

Safety note:

1) Do not run logic input wiring together with

power cables.

2) Use an external dry contact capable of

switching 0.5 mA, 5 V DC.

3) The instrument needs 100 ms to recognize a

contact status variation.

4) The logic inputs are NOT isolated by the

measuring input

Fig. 7 - LOGIC INPUT WIRING

This logic input allows to select the operative set

point.

logic input op. set point

open SP

close SP2

C) RELAY OUTPUTS

Fig. 8 RELAY OUTPUTS WIRING

The contact rating of the OUT 2, 3 is 2A/250V AC

on resistive load.

The number of operations is 1 x 105at specified

rating.

NOTES 1) To avoid electrical shock, connect

power line at the end of the wiring

procedure.

2) For power connections use No 16 AWG

or larger wires rated for at last 75 °C.

3) Use copper conductors only.

4) Don’t run input wires together with

power cables.

The relay contacts are protected by varistor against

inductive load with inductive component up to 0.5 A.

The following recommendations avoid serious

problems which may occur, when using relay

output for driving inductive loads.

SP / SP2

3NO - OUT 3

NO - OUT 2

C - OUT 2 and 3

OUT 2

OUT 3

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LINEAR OUTPUT

This instrument is equipped with one linear output

(OUT 1) programmable as:

- main output (heating or cooling)

- secondary output (cooling)

- analog retransmission of the measured value

- analog retransmission of the operative set point.

Fig. 10 mA OUTPUT WIRING

It is an isolated analog output.

Maximum load: 500 W.

INDUCTIVE LOADS

High voltage transients may occur switching

inductive loads.

Through the internal contacts these transients

may introduce disturbances which can affect the

performance of the instrument.

For the OUT 2 and OUT 3, the internal protection

(varistor) assures a correct protection up to 0.5 A

of inductive component.

The same problem may occur when a switch is

used in series with the internal contacts as shown

in Fig. 9.

Fig. 9 EXTERNAL SWITCH IN SERIES WITH

THE INTERNAL CONTACT

In this case it is recommended to install an

additional RC network across the external contact

as show in Fig. 9

The value of capacitor (C) and resistor (R) are

shown in the following table.

The cable involved in relay output wiring must be

as far away as possible from input or communica-

tion cables.

LOAD

POWER

LINE

20 mA

OUT 1

LOAD

(mA)

<40 mA

<150 mA

<0.5 A

(mF)

0.047

0.1

0.33

(W)

100

(W)

1/2

OPERATING

VOLTAGE

260 V AC

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SERIAL INTERFACE

RS-485 interface allows to connect up to 30

devices with one remote master unit.

Fig. 11 - RS-485 WIRING

The cable length must not exceed 1.5 km at 9600

BAUD.

NOTE: The following report describes the signal

sense of the voltage appearing across the

interconnection cable as defined by EIA for

RS-485.

a) The ”A ”terminal of the generator shall

be negative with respect to the ”B ”

terminal for a binary 1 (MARK or OFF)

state.

b) The ”A ”terminal of the generator shall

be positive with respect to the ”B ”

terminal for a binary 0 (SPACE or ON)

state.

D) POWER LINE WIRING

Fig. 12 POWER LINE WIRING

NOTES:

1) Before connecting the instrument to the power

line, make sure that line voltage corresponds to

the description on the identification label.

2) To avoid electrical shock, connect power line at

the end of the wiring procedure.

3) For supply connections use No 16 AWG or larger

wires rated for at last 75 °C.

4) Use copper conductors only.

5) Don’t run input wires together with power cables.

6) For 24 V DC the polarity is a do not care condition.

7) The power supply input is NOT fuse protected.

Please, provide it externally.

Power supply Type Current Voltage

24 V AC/DC T 500 mA 250 V

100/240 V AC T 125 mA 250 V

When fuse is damaged, it is advisable to verify

the power supply circuit, so that it is necessary to

send back the instrument to your supplier.

8) The safety requirements for Permanently Con-

nected Equipment say:

- a switch or circuit-breaker shall be included in

the building installation;

- It shall be in close proximity to the equipment

and within easy reach of the operator;

- it shall be marked as the disconnecting device

for the equipment.

13 COMMON

B'/B

B/B'

A/A' A'/A

R (S,T)

POWER LINE 100 V to 240 V A.C

(50/60Hz)

or 24 V AC/DC

1604-7-1-AB.p65 5/16/00, 10:50 AM7

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