WEG Electric SSW-03, SSW-04 Serial Communications Instruction Manual

SERIAL

COMMUNICATION

MANUAL

SSW-03 and 04

SERIAL INTERFACE

Series SSW-03 and 04

CODE 0899.4457 E/2

0899.4657 E/2

email: [e-mail]

MANUAL OF THE

SERIAL

COMMUNICATION

SSW-03 and 04

Series: SSW-03 and 04
Software: Version 4.XX

ATTENTION!

It is very important to
check if the Soft-Starter
Software version is the
same as indicated above.

WEG AUTOMAÇÃO

Av. Pref. Valdemar Grubba, 3000

89256-900 Jaraguá do Sul, SC – Brasil

Tel.[phone] – Fax[phone]

_______ CONTENTS______

1 1 2

3

7 7 7 8 8

8 8 9 9

10 10 10 13 13 13 14 15 16 16 17

18

SAFETY NOTICES

1

1.1 Safety Notices in the Manual.......................................

1.2 Safety Notice on the Product.......................................

1.3 Preliminary Recommendations....................................

INTRODUCTION

2

COMMUNICATION
INTERFACES

3

DEFINITIONS

4
TELEGRAM EXAMPLES

5

2.1 About this Manual........................................................

2.2 About WEG Protocol....................................................

3.1 Interface RS-485 .........................................................

3.2 Interface RS-232 .........................................................

3.2.1 Electrical characteristics of the RS-232...............

3.2.2 Cares with the RS-232........................................

3.2.3 RS-232 connections............................................

3.2.4 Description of the Serial communication of the
Soft-Starter

3.2.5 Definition of the Cable for the RS-232 ................

3.2.6 Description of the Master Connector (RJ)...........

3.2.7 Definition of the Cable for the RS-232 PC..........

3.2.8 Description of the PC Connector (DB9)...............

4.1 Used Terms.................................................................

4.2 Block Diagram .............................................................

4.3 Magnitude Standardization..........................................

4.4 Character Format.........................................................

4.5 Protocol........................................................................

4.5.1 Reading Telegram...............................................

4.5.2 Writing Telegram.................................................

4.6 Execution and Telegram Test......................................

4.7 Telegram Sequence.....................................................

4.8 Variable Code..............................................................

4.9 Times...........................................................................

5.1 Example 1....................................................................

5.2 Example 2....................................................................

3

5

18

19 19 20

21 21

VARIABLES OF THE
SERIAL
COMMUNICATION

6
ERRORS AND

PARAMETERS
RELATED TO THE
SERIAL
COMMUNICATION

7

FAULTS AND
CORRECTIVE ACTIONS

8

6.1.1 V00 Indication of the Equipment Type......................

6.1.2 V01 Status Indication of the Soft-Starter...................

6.1.3 V02 Indication of the Soft-starter Errors....................

6.1.4 V03 Selection of the Logic Command.......................

7.1 Parameters Related to the Serial Communication.......

7.2 Errors Related to the Serial Communication................

Faults and Corrective Actions............................................ 22

19

1

SAFETY NOTICES 1

This Manual contains all necessary information for the correct use of the Serial

Communication of the Soft-Starters SSW-03 and SSW-04

This Manual has been written for qualified personnel with suitable training or technical

qualification to operate serial interfaces and theirs respective communications protocols.

1.1 SAFETY NOTICES IN
THE MANUAL

1.2 SAFETY NOTICES ON
THE PRODUCT

The following Safety Notices will be used in this Manual:

DANGER!
If the recommended Safety Instructions are not strictly
observed, this can lead to serious or fatal injuries of
equipment damage.

ATTENTION!
Failure to observe the recommended Safety Procedures
can lead to material damage.

NOTE!
The purpose of this Manual is to supply important
information about the understanding of operation and
good performance of the equipment.

The Following symbols may be attached on the product,
giving information about the safety:

High voltage

Components are sensitive to electrostatic discharge.
Do not touch them

Mandatory connection to ground protection (PE)

Shielded connection to the ground

1 SAFETY NOTICES

2

1.3 PRELIMINARY
RECOMMENDATIONS DANGER!

Only qualified personnel should plan or implement the
installation, start-up, operation and maintenance of serial
interfaces.

Personnel must review the entire Manual of this Soft­Starter before, following carefully all safety notices there
indicated.

These personnel must follow all safety instructions
included in the Soft-Starter Manual and/or defines by local
regulations.

If there is any possibility of personnel injury and equipment
damage, that are related to motors driven by motor
starters, please install electromechanical safety devices.

In case of use of remote control (via serial
communication), consider eventual injuries and damages
that can be caused to persons and machines.

Failure to comply with these instruction may result in
personnel injury and/or equipment damage.

DANGER!

Never open energized equipment.
Always connect the frame of the equipment to the ground

(PE) at the suitable connection point.

ATTENTION
The electronic boards have components that are sensitive
to electrostatic discharges. You should never touch any of
the electrical components or connectors. If you find it
necessary to do so, touch before the metallic frame or use
a suitable grounded metallic bracelet.

NOTE!

Communications networks are generally sensitive to
interferences generated by other equipment. In order to
reduce this interference, adopt all recommended
measures.

3

ult identification related to the serial interface of WEG

INTRODUCTION 2

2.1 ABOUT THIS
MANUAL

This Manual describes the installation, start-up, operation
and fa
Soft-Starters.

For more details, training and servicing, please contact:

Servicing:

WEG AUTOMAÇÃO

Tel. [phone]

Fax: [phone]

NOTE!

For request of information or servicing, please provide
always de following information:

þ Type of WEG equipment;
þ Serial number and manufacturing date indicated on WEG

equipment nameplate;

Software version that is installed in WEG equipment.

2.2 ABOUT WEG
PROTOCOL

The main purpose of the serial network communication is
the physical connection of several equipment to one or more
masters that so will control though one or two wire pairs all
equipment that are connected do this network:

Master

MESTRE

PC, CLP, etc.

Slave 1

ESCRAVO 1

(converter)

(conversor)

Slave 2

ESCRAVO 2

(converter)

(conversor)

. . .

Slave n

ESCRAVO n

(converter)

(conversor)

n <= 30

WEG Soft-Starters have a Software to control data
transmission and reception though the serial interface, thus
enabling the reception of data sent by the master and the
transmission of data requested by it.