Siemens MICROMASTER Manuale utente

MICROMASTER

Encoder Module

Operating Instructions Issue 04/04

User Documentation

Foreword Issue 04/04

2 MICROMASTER Encoder Module Operating Instructions

A5E00146708A2

1 Foreword

Qualified Personnel

For the purpose of this Instruction Manual and product labels, a “Qualified

person” is someone who is familiar with the installation, mounting, start-up

and operation of the equipment and the hazards involved.

He or she must have the following qualifications:

 Trained and authorized to energize, de-energize, clear, ground and tag

circuits and equipment in accordance with established safety

procedures.

 Trained in the proper care and use of protective equipment in

accordance with established safety procedures.

 Trained in rendering first aid.

Safety guidelines

This manual contains notices intended to ensure your personal safety, as

well as to protect products and connected equipment against damage.

Information relating to your personal safety is highlighted by a warning

triangle. Warnings about property damage are displayed without a warning

triangle. Depending on the degree of risk involved, safety-related

information is presented in the following Categories:

DANGER

For the purpose of this documentation and the product warning labels,

“Danger“ indicates that death; severe personal injury or substantial

damage to property will result if proper precautions are not taken.

WARNING

For the purpose of this documentation and the product warning labels,

“Warning“ indicates that death; severe personal injury or substantial

damage to property can result if proper precautions are not taken.

CAUTION

With a warning triangle, “Caution” indicates that minor personal injury can

result if proper precautions are not taken.

ATTENTION

Indicates that an undesirable effect or state can occur if attention is not

paid to the advice given.

NOTE

For the purpose of this document, “Note” indicates important information

relating to the product or highlights part of the documentation for special

attention.

Issue 04/04 Foreword

MICROMASTER Encoder Module Operating Instructions 3

A5E00146708A2

User Documentation

WARNING

Before installing and commissioning, please read these safety instructions

and warning carefully and all the warning labels attached to the equipment.

Make sure that the warning labels are kept in a legible condition and

replace missing or damaged labels.

Proper Use

WARNING

 This equipment contains dangerous voltages and controls potentially

dangerous rotating mechanical parts.

 Non-Compliance with Warnings or failure to follow the instructions

contained in this manual can result in loss of life, severe personal injury

or serious damage to property.

 Only suitably qualified personnel should work on this equipment, and

only after becoming familiar with all safety notices and maintenance

procedures contained in this manual.

 The user should be fully conversant with all warnings, cautions and

notices contained within the MICROMASTER 440 Operating

Instructions.

 The successful and safe operation of this equipment is dependent

upon its proper handling, storage, installation, operation and

maintenance.

 National safety regulations are also applicable.

Foreword Issue 04/04

4 MICROMASTER Encoder Module Operating Instructions

A5E00146708A2

Table of Contents

1Foreword................................................................ 2

2Overview ................................................................ 5

3Installation ............................................................. 6

3.1 Prerequisites ...........................................................6

3.1.1 Preparation of the Inverter .......................................6

3.1.2 Preparation of the Encoder Module..........................6

3.2 Examples of Connections ........................................9

4Commissioning...................................................... 12

4.1 TTL Encoder............................................................ 13

4.2 HTL Encoder ...........................................................13

4.3 External Power Supply ............................................14

4.4 Encoder Module Parameterization...........................15

5Troubleshooting .................................................... 18

5.1 LED Indicators.........................................................18

5.2 Fault Codes .............................................................19

6Technical Specifications ....................................... 20

Issue 04/04 Overview

MICROMASTER Encoder Module Operating Instructions 5

A5E00146708A2

2 Overview

Figure 2-1 View of Encoder Module

The MICROMASTER Encoder Module has been designed to allow the

MICROMASTER 440 inverter to interface with the most common types of

digital encoders.

The Encoder Module can use High-voltage Transistor Logic (HTL) and

Transistor Transistor Logic (TTL) digital encoders.

When the Encoder Module is fitted to the MICROMASTER 440 it allows

closed-loop encoder feedback with the following benefits in comparison to

Sensorless Vector Control (SLVC) and Variable Frequency (V/f) operation

respectively

 Zero speed with full load torque capability

 Accurate speed control

 Enhanced dynamic performance of speed and torque control.

The module is supplied with power directly from the MICROMASTER 440

via the 40-way connector on the front of the inverter.

Notes

1. An external power supply has to be provided (See Figure 3-7

on page 11) for the proper operation of the Encoder Module, if:

 The encoder consumes a current of 140 mA or more at 18 to 24 V DC.

 The encoder consumes a current of 330 mA or more at 5 V DC.

 Cable lengths greater than 50 m are used.

2. The voltage of this power supply must comply with the Encoder Module

requirements and not exceed 24 Volts DC.

3. The Encoder Module does not process any input from the encoder’s

Zero Pulse and the Inverted Zero Pulse. The terminals “Z” and “ZN” are

provided for additional functionality, currently under development.

Installation Issue 04/04

6 MICROMASTER Encoder Module Operating Instructions

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3 Installation

3.1 Prerequisites

3.1.1 Preparation of the Inverter

Caution

The Encoder Module will only function with the MICROMASTER 440

inverters and must have Version 2.0 or above software installed.

The version level of software install in the inverter can be confirmed by

using one of the following procedures:

1. By accessing parameter r0018 which displays the current

software version number.

2. By reading the Rating Label on the inverter as shown in Figure

3-1 below.

The hardware version is indicated by the first three characters

and the software version is indicated by the last three

characters.

Figure 3-1 Inverter Rating Label

3.1.2 Preparation of the Encoder Module

The Encoder Module is mounted directly onto the MICROMASTER 440

input and output (I/O) board.

Should more than one option be mounted on the inverter, the sequence

shown in Figure 3-2 should be followed.

Figure 3-2 Option Mounting Sequence

Issue 04/04 Installation

MICROMASTER Encoder Module Operating Instructions 7

A5E00146708A2

Screening

To ensure the correct functioning of the encoder the guidelines listed

below should be followed:

 Only twisted-pair screened cable should be used to connect the

encoder to the Encoder Module.

 The cable screen must be terminated in the screen clamp of the

Encoder Module as shown in Figure 3-3 below.

 If the encoder cable has a screen/earth/ground conductor, this should

be terminated to the PE terminal of the Encoder Module.

 Signals cables must not be installed close to power cables.

Figure 3-3 Screen Clamp and PE Terminal

Connections

The MICROMASTER Encoder Module has 12 terminal connections, which

are described in Table 3-1 below.

Table 3-1 Encoder Module Terminals

Terminal Description

A Channel A

AN Channel A Inverted

B Channel B

BN Channel B Inverted

Z Zero Pulse (not available. See Notes on page 5)

ZN Zero Pulse Inverted (not available. See Notes on page 5)

18V HTL Link Terminal (terminals LK & 18V only)

LK Shaft Encoder Supply Voltage

5V TTL Link Terminal (terminals LK & 5V only)

VE Supply to Shaft Encoder

0V Supply to Shaft Encoder

PE Protective Earth

Installation Issue 04/04

8 MICROMASTER Encoder Module Operating Instructions

A5E00146708A2

Encoder Status LED’s

The MICROMASTER Encoder Module has three LED’s, which indicate

current operating status of the encoder module (see Figure 3-4 below).

Figure 3-4 Encoder Module LED’s

The LED’s have been designed to indicate a healthy or fault condition in

the following areas:

 Channel A

 Channel B

 Zero Pulse

If the Encoder Module is working correctly the LED’s will flash on and off

as the shaft encoder is rotated. If a fault condition exists the LED’s will

either stop flashing and remain on or remain off.

NOTE

At high motor speeds the LED’s appear permanently on – this is due to the

high pulse rates.

Encoder DIP Switches

The DIP switches on the Encoder Module are provided to allow the user to

select the correct settings for the encoder unit attached to the Encoder

Module. See Figure 3-5 below.

Figure 3-5 Encoder Module DIP Switches

The settings of the DIP switches are explained in Table 3-2 below.

Issue 04/04 Installation

MICROMASTER Encoder Module Operating Instructions 9

A5E00146708A2

Table 3-2 DIP Switch Settings

DIP-Switch 1 2 3 4 5 6

Encoder Type

TTL 120Ω Single-Ended Input ON ON ON ON ON ON

TTL Differential Input OFF ON OFF ON OFF ON

HTL >5 kΩSingle-Ended Input ON OFF ON OFF ON OFF

HTL Differential Input OFF OFF OFF OFF OFF OFF

The default settings of the DIP switches allow the Encoder Module to be

used with a HTL differential input encoder.

3.2 Examples of Connections

Figures 3-7, 3-8 and 3-9 show the various configurations of connection for

the Encoder Module. A detailed description of the precise configurations of

the encoder Module is given in Section 4 – Commissioning.

NOTE

The color-coding of the connection in the following Figures are for

illustration purposes only and the actual colors will vary depending upon

the type of cables used by the commissioning engineer.

Figure 3-6 shows a typical pulse encoder cable and how the encoder

connections relate to the encoder terminals.

0 V

Ua0 Ua1 Ua2

ABCDEFGH K L M

Ua2

Schir m

Shield

blindag e

blindaje

schermo

skärm

UPUaS

Ua0 0 V

Ua1

Rotary Pulse Encoder

1XP8001-1 / Up = 10 ... 30 V (HTL)

1XP8001-2 / Up = 5 V ± 10% (TTL)

MM4 Encoder

Module Connections

1xP8001 Encoder

Designations

Encoder Connector

Pin Designation

Encoder Connector

BN +24 V

+5 V

Z ZN A AN - B 0 V - -

Figure 3-6 Typical Encoder Connections

Installation Issue 04/04

10 MICROMASTER Encoder Module Operating Instructions

A5E00146708A2

Figure 3-7 TTL Encoder Connections (5V DC)

Figure 3-8 HTL Encoder Connections (18V DC)

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