Omega CN3440 User Manual

omega.com

User’s Guide

http://www.omega.com

e-mail: info@omega.com

Universal Temperature & Process

CN3440 SERIES

Controllers

Installation Guide

WARRANTY/ DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 37 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal three (3) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components which wear are not warranted, including but not limited tocontact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.

RETURN REQUESTS / INQUIRIES

BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.

FOR WARRANTY following information available BEFORE contacting OMEGA:

1. Purchase Order number under which the product was PURCHASED,

2. Model and serial number of the product under warranty, and

3. Repair instructions and/or specific problems relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering.

photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.

RETURNS, please have the

FOR NON-WARRANTY REPAIRS, OMEGA for current repair charges. Have the following information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST of the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems relative to the product.

consult

CONTENTS

1 INTRODUCTION .................................. 2

2 PREPARATION .................................... 3

2.1 Checking the Code Number ......... 3

3 MECHANICAL INSTALLATION .......... 4

3.1 Siting .......................................... 4

3.2 Mounting ...................................... 5

4 ELECTRICAL INSTALLATION ............ 6

4.1 Access to Terminals ..................... 6

4.2 Setting the Input Selector Links ... 6

4.3 Setting the Isolated Output Link ... 6

4.4 Cable Glands and

Conduit Fixings ............................ 8

4.4.1 Cable Glands

(IEC – 20mm) ................... 8

4.4.2 Conduit Adaptors

(N. American – 0.5in) ........ 8

4.4.3 Cable Glands

4.5 Connections Summary ............... 10

4.6 Input Connections ...................... 12

4.7 Output Connections ................... 14

4.8 Relay Connections ..................... 14

4.9 Motorized Valve Connections .... 14

4.10 Logic Input Connections ............ 15

4.11 Power Supply Selection and

(N. American – 0.5in) ........ 9

4.6.1 Thermocouple

(THC) Inputs ................... 12

4.6.2 3-lead Resistance

Thermometer (RTD)

Inputs .............................. 12

4.6.3 2-lead Resistance

Thermometer (RTD)

Inputs .............................. 12

4.6.4 Links for Unused Inputs .. 12

AC Connections ......................... 16

5 INSTALLATION RECORD ................. 17

1 INTRODUCTION

The instrument documentation is shown in Fig. 1.1. The Standard Manuals, including the specification sheet, are supplied with all instruments. The Modbus Supplement is supplied with instruments configured for Modbus Serial Communication.

This manual includes an Installation Record which should be completed as a log of the electrical installation. The record is useful when carrying out initial instrument programming and can be retained for future reference.

INSTALLATION

Product Identification

Siting

Mounting

Electrical Connections

Installation Record

OPERATION

Setting Up

Displays & Controls

Operating Level

Simple Fault-Finding

PROGRAMMING

Standard Manuals

Fig. 1.1 Documentation

Basic Config. Level

Advanced Config. Level

MODBUS (RTU).

Serial Adaptors

Serial Connections

Programming Page

MODBUS Registers

MODBUS Supplement

2 PREPARATION

2.1 Checking the Code Number – Fig. 2.1

XXXX / X X X X X X X X

Fig. 2.1 Location of Code Number Label

Code Number Label

3 MECHANICAL INSTALLATION

EC Directive 89/336/EEC

In order to meet the requirements of the EC Directive 89/336/EEC for EMC regulations, this product must not be used in a non-industrial environment.

3.1 Siting – Figs. 3.1 and 3.2

Minimum

A – Close to Sensor

B – At Eye-level Location

Sensor

55°C Max.

0°C Min.

A – Within Temperature Limits

0 to 90% RH

B – Within Humidity Limits

IP66/ NEMA4X

C – Within Protection Rating Limits

C – Avoid Vibration

Fig. 3.1 General Requirements

Caution. Select a location

away from strong electrical and magnetic fields. If these cannot be avoided, particularly in applications where ‘walkie talkies’ are used, connect using screened cables within earthed metal conduit.

D – Use Screened Cables

Fig. 3.2 Environmental Requirements

3 MECHANICAL INSTALLATION…

3.2 Mounting – Figs. 3.3 and 3.4

The instrument is designed for wall-/pipe-mounting – see Fig. 3.4. Overall dimensions are shown in Fig. 3.3.

Dimensions in inches (mm)

6.3 (160)

9.84

(250)

2.72 (69)

Fixing Holes (x3) 0.25 (6.5) Dia

Fixing Centres

8.43

(214)

7.9 (200)

Drill suitable

Allowance for

Cable Bends

Fig. 3.3 Overall Dimensions

holes

Position plates over ‘U’ bolts

1.65

2.68 (68)

(42)

Position ‘U’ bolts on pipe

/8 (61) O.D. Vertical or

Horizontal Post

9.13

(232)

Fixing Centres

Fix instrument to

wall using

suitable fixing

Pipe Mounting Kit

Mark fixing

centres

(see Fig. 3.3)

Fig. 3.4 Wall-/Pipe-mounting Details

Secure plates

Secure transmitter to mounting plate

4 ELECTRICAL INSTALLATION

Warning. Before making any connections, ensure that the power supply, any high voltage-operated control circuits and high common mode voltages are switched off.

Note.

• Always route signal leads and power cables separately, preferably in earthed metal conduit.

• It is strongly recommended that screened cable is used for signal inputs and relay connections. Connect the screen to the ground stud.

Information. Use cable appropriate

for the load currents. The terminals accept cables up 12AWG (2.5mm2).

4.1 Access to Terminals – Fig. 4.1

For access to terminals – refer to Fig. 4.1, steps 1 to 3.

4.2 Setting the Input Selector Links – Fig. 4.2A

Plug-in links on the microprocessor p.c.b. are positioned according to the type of Process Variable Input, Remote Set Point Input and Valve Position Feedback Inputs used.

Remove the instrument front panel – see Fig. 4.1, steps 1 to 6.

Referring to Fig. 4.2A, set the link positions for the input type required.

4.3 Setting the Isolated Output Link – Fig. 4.2B

A plug-in link (PL7) on the microprocessor p.c.b. is positioned according to the isolated output required, either a current proportioning control output (programmable in range 0 to 20mA) or a 12V logic output (minimum load 400Ω). Referring to Fig. 4.2B – steps 1 and 2, set the link for the output type required.

To use a 12V logic output, the control type must be set to Time Proportioning Control – see Fig. 3.1

of the Programming Guide

Remove cap

Remove front

panel

and screw

slide down

Pull out slightly…

…and slide off

Fig. 4.1 Access to Terminals and Processor Board

Slacken captive screws and

remove protection cover

Remove front panel screws

+ 16 hidden pages