Siemens MICROMASTER User manual

MICROMASTER
Encoder Module
Operating Instructions Issue 04/04
User Documentation

Foreword Issue 04/04
2 MICROMASTER Encoder Module Operating Instructions
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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
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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.

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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
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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.

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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

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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

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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.

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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
B
D
E
F
H
K
AL
M
C
G
J
UP
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
or
+5 V
Z ZN A AN - B 0 V - -
Figure 3-6 Typical Encoder Connections

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Figure 3-7 TTL Encoder Connections (5V DC)
Figure 3-8 HTL Encoder Connections (18V DC)