Keba Kemro MM 240/A Installation and operation manual

Kemro
MM 240/A
Encoder interface module
Project engineering manual V1.08
Translation of the original instructions

Document : V1.08 / article no.: 1000476
Filename : mm240apjen.pdf
Pages : 31
.
© KEBA 2010
Specifications are subject to change due to further technical developments. Details presented may be subject to correction.
All rights reserved.
A: KEBA AG, Gewerbepark Urfahr, A-4041 Linz, Tel.: [phone], Fax: [phone], E-Mail: [email protected]
D: KEBA GmbH Automation, Leonhard-Weiss-Straße 40, D-73037 Göppingen, Tel.: [phone], Fax:
[phone], E-Mail: [email protected]
US: KEBA Corp., 100 West Big Beaver Road, Troy, MI 48084, US, Tel.: [phone], Fax: [phone], E-Mail:
[email protected]
CN: Beijing Austrian KEBA Science and Technology Development Ltd., Room B516, Nan Xin Cang Tower, A22 Dong Si Shi Tiao, Dong Cheng District, Beijing, 100027, P.R. China, Tel. [phone], Fax [phone], E-Mail:
[email protected]
www.keba.com

Record of Revision
Version Date Change in chapter Description changed by
V1.00 10-2006 Newly created. meis
V1.01 11-2006 Various changes meis
V1.02 02-2007 Connection diagram updated meis
V1.03 06-2007 Setting the address,
encoder input updated meis
V1.04 07-2007 Technical data New structuring of the project engineering manual, de-
tailed power ratings meis
V1.05 06-2008 power supply Fuse protection of supply meis
V1.06 06-2008 Front view, setting
the address Information on electronic type plate meis
V1.07 03-2010 Overview of func-
tions Added Position Counter, Technical Data: Added Incre- mental Encoder hasl, bru
V1.08 08-2010 Power Supply, Decla-
ration of conformity
MM 240/A Record of Revision
© KEBA 2010
Project engineering manual V1.08 3

Table of Contents
1 Introduction....................................................................................................................... 7
1.1 Purpose of the document........................................................................................ 7
1.2 Target groups, pre-requirements............................................................................ 7
1.3 Intended use........................................................................................................... 7
1.4 Notes on this document.......................................................................................... 8
1.5 Documentation for further reading.......................................................................... 8
2 Safety notes...................................................................................................................... 9
2.1 Representation........................................................................................................ 9
2.2 General safety instructions...................................................................................... 9
3 Description of the module............................................................................................. 11
3.1 Front view.............................................................................................................. 11
3.2 Accessories........................................................................................................... 12
3.2.1 Connector strip....................................................................................... 12
4 Connections and wiring................................................................................................. 13
4.1 Power supply......................................................................................................... 13
4.1.1 Module supply........................................................................................ 13
4.1.2 Supply for connected transducers.......................................................... 13
4.2 Latch inputs........................................................................................................... 13
4.2.1 Connection example............................................................................... 14
4.2.2 Connection diagram............................................................................... 14
4.3 Encoder interface.................................................................................................. 15
4.3.1 Connection example............................................................................... 16
4.3.2 Pin assignment....................................................................................... 16
4.3.3 Connection diagram............................................................................... 17
4.3.4 Cable and plug specification.................................................................. 18
4.4 EMC and wiring guidelines.................................................................................... 18
5 Configuration.................................................................................................................. 19
5.1 Setting the K-Bus address.................................................................................... 19
6 Functional description................................................................................................... 21
6.1 Position measurement.......................................................................................... 21
6.2 Position counter.................................................................................................... 22
6.3 Speed measurement............................................................................................. 23
6.4 Pulse counter without direction evaluation............................................................ 23
6.5 Pulse counter with direction evaluation................................................................. 23
6.6 Zero pulse monitoring........................................................................................... 23
6.7 Latch function digital input..................................................................................... 23
6.8 Latch function Zero pulse...................................................................................... 24
6.9 Simulation mode................................................................................................... 24
MM 240/A Table of Contents
© KEBA 2010
Project engineering manual V1.08 5

7 Operating behavior......................................................................................................... 25
7.1 Response to sensor failure................................................................................... 25
7.2 Behavior at transducer error................................................................................. 25
7.3 Behavior at short circuit of transducer supply....................................................... 25
7.4 Monitoring track errors.......................................................................................... 25
8 Disposal........................................................................................................................... 26
8.1 Disposal of the module.......................................................................................... 26
9 Technical data................................................................................................................. 27
9.1 In general.............................................................................................................. 27
9.2 Incremental encoder inputs................................................................................... 27
9.3 Environmental conditions...................................................................................... 27
9.4 Speed measurement............................................................................................. 28
9.5 Position counter.................................................................................................... 28
9.6 Transducer supply................................................................................................. 28
9.7 Latch inputs........................................................................................................... 28
9.8 Time stamp for latch event.................................................................................... 28
9.9 Interfaces.............................................................................................................. 28
9.10 Diagnosis possibilities........................................................................................... 28
9.11 Dimensions........................................................................................................... 29
10 EC directives and standards......................................................................................... 30
10.1 EC directives......................................................................................................... 30
10.2 Standards.............................................................................................................. 30
10.2.1 General procedures and safety principles.............................................. 30
10.2.2 EMC guideline........................................................................................ 30
10.2.3 Electrical safety and fire protection........................................................ 30
10.2.4 Environmental and surrounding conditions............................................ 30
10.3 Standards for the American market...................................................................... 30
10.3.1 UL test for industrial control equipment.................................................. 30
11 Declaration of conformity.............................................................................................. 31
Table of Contents MM 240/A
© KEBA 2010
Project engineering manual V1.086

1 Introduction
1.1 Purpose of the document
This document describes the structure of the MM 240/A
(Encoder interface module).
1.2 Target groups, pre-requirements
This document is intended for the following persons with adequate skill pre-
requirements:
Target group Knowledge and skills pre-requirement
Project engineer
Basic technical training (University of Applied Science/University level,
engineering degree or corresponding professional experience).
Knowledge in:
●working mode of a PLC,
●safety regulations,
●the application.
Operator
Basic technical training (Vocational high school, engineering degree or
corresponding professional experience).
Knowledge in:
●safety regulations,
●working mode of machine or plant,
●principal functions of the application,
●system analysis and troubleshooting,
●setting options at the operating installations.
Service technician
Basic technical training (Vocational high school, engineering degree or
corresponding professional experience).
Knowledge in:
●working mode of a PLC,
●safety regulations,
●working mode of machine or plant,
●diagnosis possibilities,
●systematic error analysis and rectification.
1.3 Intended use
The MM 240/A was developed for control applications in industrial machines.
The typical applications areas include injection molding machines, robots,
presses, machine tools and similar.
The assembly must only be used for the above-mentioned applications and
only in connection with recommended or approved third-party equipment.
MM 240/A Introduction
© KEBA 2010
Project engineering manual V1.08 7

The MM 240/A has been developed, manufactured, tested and documented
in accordance with the appropriate safety standards. Therefore, the products
do not pose any danger to the health of persons or a risk of damage to other
property or equipment under normal circumstances, provided that the instruc-
tionsandsafetyprecautionsrelatingtotheintendeduseareproperlyobserved.
1.4 Notes on this document
This manual is integral part of the product. It is to be retained over the entire
life cycle of the product and should be forwarded to any subsequent owners
or users of the product.
1.5 Documentation for further reading
Thefollowing documentsare tobe observeddepending onthe systemsolution
used:
If you are using the KeStudio U2 tool suite:
Doc.No. Name Target group
DE: 65352
EN: 65353 K2-200 automation system manual
●Project engineer
●Electrician
●Programmer
●Commissioning foreman
●Service technician
If you are using the KeStudio U3 tool suite:
Doc.No. Name Target group
DE: 1000868
EN: 1000869 System manual Kemro automation
system
●Project engineer
●Electrician
●Programmer
●Commissioning foreman
●Service technician
Introduction MM 240/A
© KEBA 2010
Project engineering manual V1.088

2 Safety notes
2.1 Representation
At various points in this manual you will see notes and precautionary warnings
regarding possible hazards. The symbols used have the following meaning:
DANGER!
●indicates an imminently hazardous situation which will result in death or
serious bodily injury if the corresponding precautions are not taken.
WARNING!
●indicates a potentially hazardous situation which can result in death or se-
rious bodily injury if the corresponding precautions are not taken.
CAUTION!
●meansthatifthecorrespondingsafetymeasures are not taken, apotentially
hazardous situation can occur that may result in property injury or slight
bodily injury.
CAUTION
●CAUTION used without the safety alert symbol indicates a potentially haz-
ardous situation which, if not avoided, may result in damage to property.
●This symbol reminds you of the possible consequences of touching elec-
trostatically sensitive components.
Information
Useful practical tips and information
on the use of equipment are identified by the “Information” symbol. They do
notcontain anyinformationthat warnsabout potentiallydangerous orharmful
functions.
2.2 General safety instructions
WARNING!
●It is absolutely essential to observe the safety instructions in the system
manual.
●The module is defined as "open type equipment" (UL508) or as "offenes
Betriebsmittel" (EN 61131-2) and must therefore be installed in a control
cabinet.
MM 240/A Safety notes
© KEBA 2010
Project engineering manual V1.08 9

CAUTION
Improper use of the assembly or the control system leads to irreparable dam-
age!
●Turn off the power supply before inserting or removing the module. Other-
wise, the module can be destroyed or undefined signal states can lead to
damage of the control system.
Safety notes MM 240/A
© KEBA 2010
Project engineering manual V1.0810

3 Description of the module
The MM 240/A is an Encoder interface module with 2 incremental encoder
inputs. It has two latch inputs for recording events.
3.1 Front view
Fig.3-1: MM 240/A front view
1... power supply 2... 2 Latch inputs
3... Encoder input 0 4... Encoder input 1
Information
●TheEncoderinterfacemoduleMM240/Aisnotdesignedfordrivecontrol.
●The type plate is stored on the module in an EEPROM and can be read
out by the application.
MM 240/A Description of the module
© KEBA 2010
Project engineering manual V1.08 11

3.2 Accessories
3.2.1 Connector strip
Input-/output signals: Standard male connectors with grid dimension 5.08 mm.
The following female connectors are required for the MM 240/A:
●1 block with 2 connections (module supply)
●1 block with 2 connections (latch inputs)
Female connector Color Number Order no. Weidmüller
2-pole sw 1 BLZF 5.08/2 SN SW - 170769
Information
Larger terminal blocks may be used to group multiple signals. The current
carrying capacity of the terminal block is thus, however, reduced (according
to derating curve of the terminal block manufacturer.)
The appropriate female connectors are not included in the delivery of KEBA,
but can be purchased from KEBA.
For further information: See System manual.
Description of the module MM 240/A
© KEBA 2010
Project engineering manual V1.0812

4 Connections and wiring
4.1 Power supply
WARNING!
Danger of personal injury due to electric shock!
●Supply the device exclusively from power sources that have an extra low
voltage (e.g. SELV or PELV according to EN 61131-2)
●Connect only voltages and power circuits to connections, terminals and
interfaces up to 50 V rated voltage that have a secure disconnect for haz-
ardous voltages (e.g. with sufficient isolation).
CAUTION!
Fire hazard during module failure!
●Providesuitablefusesforthe24 V DC power supply for the final application.
Only fuses with a maximum nominal disconnecting current of 10 A may be
used.
4.1.1 Module supply
The module is supplied by the CPU via the K-Bus. The max. permitted fuse is
10A. (recommended fuse protection: circuit line breaker LSS 10A – type B).
4.1.2 Supply for connected transducers
CAUTION!
No galvanic isolation!
Voltage reversal leads to a short circuit between GND and 24 V.
The MM 240/A provides a 24 V and 5 V supply voltage for the connected in-
cremental encoders.
Power supply is via the 24 V terminal at the front. The 24 V are looped through
secured. In addition, 5 V are generated internally from the 24 V. The 5 V trans-
ducer supply can carry loads of up to 100 mA each.
4.2 Latch inputs
The latch inputs can be operated in 2 operating modes:
●as SINK input,
●as SOURCE input.
The configuration is carried out by software.
MM 240/A Connections and wiring
© KEBA 2010
Project engineering manual V1.08 13

4.2.1 Connection example
Fig.4-1: Connection example for SINK input
Fig.4-2: Connection example for SOURCE input
4.2.2 Connection diagram
Fig.4-3: Connection diagram latch input (SINK configuration)
Connections and wiring MM 240/A
© KEBA 2010
Project engineering manual V1.0814

Fig.4-4: Connection diagram latch input (SOURCE configuration)
4.3 Encoder interface
The module is connected to the encoder via a 9-pole DSUB socket of the
module.
The encoder inputs can be operated in 2 operating modes:
●5 V differential,
●24 V single ended.
The configuration is carried out by software.
Information
If only one encoder is used, it must be connected to the upper interface
(INC0).
Mode: 5 V differential
The specifications from the system manual on the topic Interfaces
RS-485/422 are to be observed.
Mode: 24 V single-ended
●Wiring can be unshielded.
●Lines of an encoder input not to be laid out in separately.
●The grounding conductors (collar of shield of DSUB socket or Pin 1 of
DSUB socket) must be laid out together with other lines, routed to the re-
spective encoder and used as reference voltage of the encoder signal
there.
MM 240/A Connections and wiring
© KEBA 2010
Project engineering manual V1.08 15

4.3.1 Connection example
Fig.4-5: Connection example for encoder inputs with transducer supply and latch
●INC0 is connected to a transducer via a 5 V (differential) interface. The
transducer is supplied with 5 V operating voltage by the MM 240/A.
●INC1 is connected to a transducer with 24 V interface. The transducer is
also supplied by the MM 240/A.
●The latch function is used for both transducers. The latch inputs are con-
figured to Sink.
4.3.2 Pin assignment
Fig.4-6: Encoder interface, 9-pole DSUB socket connection, seen from front
Connections and wiring MM 240/A
© KEBA 2010
Project engineering manual V1.0816

Signals
PIN no. PIN desig-
nation Signal designation 5 V diff. Signal designation 24 V
5 A+ Track A+ Track A+
9 A- Track A- do not connect
4 B+ Track B+ Track B+
8 B- Track B- do not connect
3 0+ Zero track+ Zero track+
7 0- Zero track- do not connect
power supply
PIN no. PIN desig-
nation Signal designation 5 V diff. Signal designation 24 V
2 24V Transducer supply Transducer supply
6 5V Transducer supply Transducer supply
1 GND ground ground
4.3.3 Connection diagram
Fig.4-7: Connection diagram for incremental encoder with 5 V power supply, differential operation,
signal voltage 5 V
Fig.4-8: Connection diagram for incremental encoder with 24 V power supply, differential operation,
signal voltage 5 V
MM 240/A Connections and wiring
© KEBA 2010
Project engineering manual V1.08 17

Fig.4-9: Connection diagram for incremental encoder with 24 V power supply, single-ended, signal
voltage 24 V
4.3.4 Cable and plug specification
Further information: See system manual.
4.4 EMC and wiring guidelines
Pay attention from the outset to careful wiring and shielding.
Further information: See system manual.
Connections and wiring MM 240/A
© KEBA 2010
Project engineering manual V1.0818

5 Configuration
General information
A Kemro-system needs data for the configuration of system performance, its
I/O-devices and interfaces. The system reads this data during the start-up op-
eration and allocates them to its components and devices.
Configuration data is created by included configuration tools or by editing con-
figuration files.
The tools included for the creation of configuration data are dependent on the
specific system-combination.
For further information to the configuration see the documentation of the in-
cluded configuration tool.
5.1 Setting the K-Bus address
The module is addressed via the address switch.
The number of modules that can be added on is limited as follows:
●8 pieces MM 240/A to a CPU module (permitted address switch positions
0 - 7).
●5 pieces MM 240/A to a bus link module BL 250/A (permitted address
switch positions 0 - 4).
●2 pieces MM 240/A to a bus link module BL 210/A (permitted address
switch positions 0, 1).
Theaddressswitch is locatedon the rightside underneath thelowercover (the
K-Bus plug is located underneath the upper cover).
Fig.5-1: Position of the address switch
1... Address switch
On leaving the factory all modules are set to address 0 and both covers are
closed.
MM 240/A Configuration
© KEBA 2010
Project engineering manual V1.08 19

Information
Modules of the same type that are installed within the same line must have
different address switch positions. Different modules (e.g.: AI 240/A and DI
260/A) may have the same address switch positions.
The two covers for the K-Bus plug and the address switch must remain locked
at the last module in the line (to protect against dirt and damage through elec-
trostatic discharge on contact).
Configuration MM 240/A
© KEBA 2010
Project engineering manual V1.0820