SMAR If303 Manuel

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Introduction

III

INTRODUCTION

The IF303 is a converter mainly intended to interface analog transmitters to a Profibus PA network.

The IF303 receives up to three current signal typically 4-20 mA or 0-20 mA, and makes them

available to Profibus PA system. The digital technology used in the IF303 enables an easy interface

between the field and the control room and it has several interesting features that reduce

considerably the installation, operation and maintenance costs.

The IF303 is part of SMAR's complete 303 line of Profibus PA devices.

Profibus PA, is not only a replacement for 4-20 mA or intelligent/smart transmitter protocols, it

contains much more.

The digital technology used in the IF303 enables the choice of several types of transfer functions, an

easy interface between the field and the control room and several interesting features that

considerably reduce the installation, operation and maintenance costs.

Some of the advantages of bi-directional digital communications are known from existing smart

transmitter protocols: Higher accuracy, multi-variable access, remote configuration and diagnostics,

and multi-dropping of several devices on a single pair of wires.

The system controls variable sampling, algorithm execution and communication so as to optimize

the usage of the network, not loosing time. Thus, high closed loop performance is achieved.

Using Profibus technology, with its capability to interconnect several devices, very large control

schemes can be constructed. In order too be user friendly the function block concept was introduced

The IF303, like the rest of the 303 family, has some Function Blocks built in, like Analog Input and

Totalizer Blocks.

The need for implementation of Fieldbus in small as well as large systems was considered when

developing the entire 303 line of Profibus-PA devices. They have common features and can be

configured locally using a magnetic tool, eliminating the need for a configuration tool or console in

many basic applications.

Get the best result of the IF303 by carefully reading these instructions.

This product is protected by US patent number 5,706,007.

IF303 - Operation and Maintenance Instruction Manual

WARNING

This Manual is compatible with version 1.XX, where 1 denotes software version and XX software release.

The indication 1.XX means that this manual is compatible with any release of software version 1.

Waiver of responsibility

The contents of this manual abides by the hardware and software used on the current equipment

version. Eventually there may occur divergencies between this manual and the equipment. The

information from this document are periodically reviewed and the necessary or identified corrections

will be included in the following editions. Suggestions for their improvement are welcome.

Warning

For more objectivity and clarity, this manual does not contain all the detailed information on the

product and, in addition, it does not cover every possible mounting, operation or maintenance

cases.

Before installing and utilizing the equipment, check if the model of the acquired equipment complies

with the technical requirements for the application. This checking is the user’s responsibility.

If the user needs more information, or on the event of specific problems not specified or treated in

this manual, the information should be sought from Smar. Furthermore, the user recognizes that the

contents of this manual by no means modify past or present agreements, confirmation or judicial

relationship, in whole or in part.

All of Smar’s obligation result from the purchasing agreement signed between the parties, which

includes the complete and sole valid warranty term. Contractual clauses related to the warranty are

not limited nor extended by virtue of the technical information contained in this manual.

Only qualified personnel are allowed to participate in the activities of mounting, electrical connection,

startup and maintenance of the equipment. Qualified personnel are understood to be the persons

familiar with the mounting, electrical connection, startup and operation of the equipment or othe

similar apparatus that are technically fit for their work. Smar provides specific training to instruct and

qualify such professionals. However, each country must comply with the local safety procedures,

legal provisions and regulations for the mounting and operation of electrical installations, as well as

with the laws and regulations on classified areas, such as intrinsic safety, explosion proof, increased

safety and instrumented safety systems, among others.

The user is responsible for the incorrect or inadequate handling of equipments run with pneumatic

or hydraulic pressure or, still, subject to corrosive, aggressive or combustible products, since thei

utilization may cause severe bodily harm and/or material damages.

The field equipment referred to in this manual, when acquired for classified or hazardous areas, has

its certification void when having its parts replaced or interchanged without functional and approval

tests by Smar or any of Smar authorized dealers, which are the competent companies for certifying

that the equipment in its entirety meets the applicable standards and regulations. The same is true

when converting the equipment of a communication protocol to another. In this case, it is necessary

sending the equipment to Smar or any of its authorized dealer. Moreover, the certificates are

different and the user is responsible for their correct use.

Always respect the instructions provided in the Manual. Smar is not responsible for any losses

and/or damages resulting from the inadequate use of its equipments. It is the user’s responsibility to

know and apply the safety practices in his country.

Table of Contents

TABLE OF CONTENTS

SECTION 1 - INSTALLATION..................................................................................................................... 1.1

GENERAL..................................................................................................................................................................................... 1.1

MOUNTING .................................................................................................................................................................................. 1.1

ELECTRIC WIRING...................................................................................................................................................................... 1.1

TOPOLOGY AND NETWORK CONFIGURATION....................................................................................................................... 1.3

INTRINSIC SAFETY BARRIER.................................................................................................................................................... 1.4

JUMPER CONFIGURATION........................................................................................................................................................ 1.5

POWER SUPPLY ......................................................................................................................................................................... 1.5

INPUT WIRING............................................................................................................................................................................. 1.5

SECTION 2 - OPERATION...........................................................................................................................2.1

FUNCTIONAL DESCRIPTION – ELECTRONICS.........................................................................................................................2.1

SECTION 3 - CONFIGURATION................................................................................................................. 3.1

TRANSDUCER BLOCK................................................................................................................................................................ 3.1

HOW TO CONFIGURE A TRANSDUCER BLOCK....................................................................................................................... 3.1

TERMINAL NUMBER ................................................................................................................................................................... 3.1

FUNCTIONAL DIAGRAM OF THE CURRENT TO PROFIBUS PA TRANSDUCER BLOCK....................................................... 3.2

CURRENT TO PROFIBUS PA TRANSDUCER BLOCK GENERAL PARAMETER DESCRIPTION............................................ 3.3

TRANSDUCER BLOCK PARAMETER ATTRIBUTES.................................................................................................................. 3.4

IF303 - CYCLIC CONFIGURATION.............................................................................................................................................. 3.5

HOW TO CONFIGURE THE ANALOG INPUT BLOCK................................................................................................................ 3.9

HOW TO CONFIGURE THE TOTALIZER BLOCK..................................................................................................................... 3.11

CURRENT TRIM......................................................................................................................................................................... 3.13

VIA LOCAL ADJUSTMENT ........................................................................................................................................................ 3.14

TRANSDUCER DISPLAY – CONFIGURATION......................................................................................................................... 3.15

DISPLAY TRANSDUCER BLOCK.............................................................................................................................................. 3.16

DEFINITION OF PARAMETERS AND VALUES ........................................................................................................................ 3.16

PROGRAMMING USING LOCAL ADJUSTMENT...................................................................................................................... 3.19

QUICK GUIDE – LOCAL ADJUSTMENT TREE......................................................................................................................... 3.21

J1 JUMPER CONNECTIONS..................................................................................................................................................... 3.22

W1 JUMPER CONNECTIONS ................................................................................................................................................... 3.22

SECTION 4 - MAINTENANCE PROCEDURES........................................................................................... 4.1

GENERAL..................................................................................................................................................................................... 4.1

TROUBLESHOOTING.................................................................................................................................................................. 4.1

DISASSEMBLY PROCEDURE..................................................................................................................................................... 4.2

REASSEMBLY PROCEDURE...................................................................................................................................................... 4.2

BOARDS INTERCHANGEABILITY .............................................................................................................................................. 4.3

EXPLODED VIEW ........................................................................................................................................................................ 4.3

ACCESSORIES............................................................................................................................................................................ 4.3

SPARE PARTS LIST .................................................................................................................................................................... 4.4

SECTION 5 - TECHNICAL CHARACTERISTICS ....................................................................................... 5.1

ORDERING CODE ....................................................................................................................................................................... 5.2

APPENDIX A – SRF – SERVICE REQUEST FORM...................................................................................A.1

RETURNING MATERIALS ...........................................................................................................................................................A.2

APPENDIX B – SMAR WARRANTY CERTIFICATE ..................................................................................B.1

IF303 - Operation and Maintenance Instruction Manual

Installation Flowchart

VII

Installation Flowchart

Was the converter

configured on the bench

to match the application?

Configure the engineering unit.

Configure the terminal(s)

and input scale(s) .

(Section 3 - Calibration)

Configure the LCD reading.

(Section 3 - Configuration)

Simulate the value(s) in the 4 a

20 mA input and verify the

signal(s) in Fieldbus.

Start

Yes

Is the indication correct?

See section 4 - Maintenance

Install the converter on the field

following the instructions below.

Check the area classification

and its practices.

Install the (mechanically

and electrically) according to the

application after checking the best

position for the LCD

(Section 4 - Maintenance).

converter

Install the preferably

on wether-protected areas.

converter

Power-up the properly.

IF303 needs a external power supply

for supply the equipment .

converter

4 - 20 mA

Yes

IF303 - Operation and Maintenance Instruction Manual

VIII

Section 1

1.1

INSTALLATION

General

The overall accuracy of measurement and control depends on several variables. Although the

converter has an outstanding performance, proper installation is essential, in order to maximize its

performance.

Among all factors, which may affect converter accuracy, environmental conditions are the most

difficult to control. There are, however, ways of reducing the effects of temperature, humidity and

vibration.

Locating the converter in areas protected from extreme environmental changes can improve the

converter performance.

In warm environments, the converter should be installed to avoid as much as possible, direct

exposure to the sun. Installation close to lines and vessels subjected to high temperatures should

also be avoided.

Use of sunshades or heat shields to protect the converter from external heat sources should be

considered, if necessary.

Humidity is fatal to electronic circuits. In areas subjected to high relative humidity, the O-rings for the

electronics cover must be correctly placed. Removal of the electronics cover in the field should be

reduced to the minimum necessary, since each time it is removed the circuits are exposed to the

humidity. The electronic circuit is protected by a humidity proof coating, but frequent exposures to

humidity may affect the protection provided. It is also important to keep the covers tightened in

place. Every time they are removed, the threads are exposed to corrosion, since painting cannot

protect these parts. Code-approved sealing methods on conduit entering the converter should be

employed.

Mounting

Using the bracket, the mounting may be done in several positions, as shown on Figure 1.3 -

Dimensional Drawing and Mounting Positions.

For better visibility, the digital indicator may be rotated in steps of 90° (See Section 4 - Maintenance

Procedures).

Electric Wiring

Access the wiring block by removing the Electrical Connection Cover. This cover can be locked

closed by the cover locking screw (See Figure 1.1 - Cover Locking) To release the cover, rotate the

locking screw clockwise.

Cable access to wiring connections is obtained by one of the two conduit outlets. Conduit threads

should be sealed by means of code-approved sealing methods. The unused outlet connection

should be plugged accordingly.

The wiring block has screws, on which fork or ring type terminals can be fastened, see Figure 1.2 -

Terminal Block.

IF303 - Operation and Maintenance Instruction Manual

1.2

COVER

LOCKING

SCREW

Figure 1.1 - Cover Locking

For convenience there are three ground terminals: one inside the cover and two externals, located

close to the conduit entries.

GROUND

TERMINAL

PROFIBUS PA

ND POWER SUPPLY

TERMINALS

COMUNICATION

TERMINALS

INPUT

TERMINALS (3) INPUT

GROUND

TERMINAL

Figure 1.2 - Terminal Block

The IF303 uses the 31.25 kbit/s voltage mode option for the physical signaling. All other devices on

the same bus must use the same signaling.

Various types of Fieldbus devices may be connected on the same bus.

The IF303 is powered via the bus. The limit for such devices is according to the DP/PA coupler

limitations for one bus (one segment) for non-intrinsically safe requirement.

In hazardous area, the number of devices may be limited by intrinsically safe restrictions, according

to the DP/PA coupler and barriers limitations.

The IF303 is protected against reverse polarity, and can withstand ±35 VDC without damage, but it

will not operate when in reverse polarity.

NOTE

Please refer to the General Installation, Operation and Maintenance Procedures Manual for more details.

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