SEW-Eurodrive MOVITRAC 31C User manual

02068AXX
T
MOVITRAC® 31C
Frequency Inverters
DeviceNet FFD31C Fieldbus Interface
Manual
Edition 11/98
0919 6617 / 0599
Device Net

2
MOVITRAC
®
31C DeviceNet FFD31C
Important Notes
Important Notes
•Read this manual carefully before you start the installation and startup of MOVITRAC®
31C frequency inverters with the DeviceNet FFD31C option card.
This manual assumes that the user has access to and is familiar with the documentation on
the MOVITRAC®
31C system, in particular the MOVITRAC® 31C manual.
•Safety notes:
Always follow the safety and warning instructions contained in this manual!
Safety notes are marked as follows:
Electrical hazard, e.g. when working on live wires.
Mechanical hazard, e.g. when working on hoists.
Important instructions for safe and fault-free operation of the driven machine/
system, e.g. pre-setting before startup.
•General safety notes on bus systems:
This communication system allows you to match the MOVITRAC®
31C frequency inverter to
the specifics of your application to a very high degree. As with all bus systems, there is a
danger of invisible, external (as far as the inverter is concerned) modifications to the param-
eters which give rise to changes in the inverter's behavior. This may result in unexpected
(not uncontrolled, though!) system behavior.
• Each unit is manufactured and tested to current SEW-EURODRIVE technical standards and
specifications.
The manufacturer reserves the right to make changes to the technical data and designs as
well as the user interface herein described, which are in the interest of technical progress.
A requirement of fault-free operation and fulfillment of any rights to claim under guarantee is
that this information is observed.
Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [email protected]

MOVITRAC
®
31C DeviceNet FFD31C
3
Contents
Contents
1 Introduction ...................................................................................... 4
2 Installation....................................................................................... 6
2.1 Supported unit types .............................................................................................6
2.2 Installation of the option card................................................................................6
2.3 Pin assignment......................................................................................................6
2.4 Shielding and routing of the bus cables.................................................................7
2.5 Bus termination .....................................................................................................7
2.6 DIP switch settings................................................................................................8
2.7 Display elements....................................................................................................8
3 Project Planning and Startup ............................................................... 11
3.1 Inverter control mode fieldbus.............................................................................11
3.2 Setting up the DeviceNet network using the DeviceNet Manager software ..........12
3.3 Process data exchange ........................................................................................13
3.4 Parameter data exchange.....................................................................................19
4 Sample Application with SLC500........................................................... 24
4.1 Exchange of polled I/O (process data) .................................................................26
4.2 Exchange of bit-strobe I/O ...................................................................................28
4.3 Exchanging explicit messages (parameter data)..................................................29
5 Technical Data ................................................................................ 33
6 Appendix ....................................................................................... 34
6.1 General error codes .............................................................................................34
6.2 Statement of conformance...................................................................................35
6.3 Definitions of terminology ...................................................................................44
7 Index ............................................................................................ 45
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4
MOVITRAC
®
31C DeviceNet FFD31C
1 Introduction
1 Introduction
This user manual for the DeviceNet (FFD31C) Option describes how to install the DeviceNet option
card in the frequency inverter and how to start up the MOVITRAC®
31C on the DeviceNet fieldbus
system.
As well as explaining all settings on the fieldbus interface, this document also deals with the vari-
ous DeviceNet connection variants in the form of brief startup examples.
As well as this user manual on the DeviceNet Option, you should request the following publications
dealing with the topic of fieldbuses in more detail, so as to permit MOVITRAC®
31C to be con-
nected to the DeviceNet fieldbus system in a straightforward and effective fashion:
• “MOVITRAC®
31C Fieldbus Unit Profile” manual
• “MOVITRAC®
31C Communications Interfaces and Parameter List” manual
The manual for the MOVITRAC®
31C fieldbus unit profile describes the fieldbus parameters and
their coding, as well as explaining the whole range of various control concepts and application
options in the form of brief examples.
The “MOVITRAC®
31C Communications Interfaces and Parameter List” manual contains a listing
of all parameters of the frequency inverter which can be read and/or written via the various com-
munications interfaces such as RS-485 and also via the fieldbus interface.
The MOVITRAC®
31C frequency inverter in conjunction with the FFD31C option enables you to
make the connection to master automation systems via DeviceNet, thanks to the high-perfor-
mance, universal fieldbus interface of the FFD31C option.
MOVITRAC®
31C and DeviceNet
The unit behavior of the inverter which forms the basis of DeviceNet operation is referred to as the
unit profile. It is independent of any particular fieldbus and is therefore consistent for all fieldbus
types. This provides you, the user, with the opportunity of developing applications irrespective of
the fieldbus. As a result, it is very easy to change over to other bus systems such as INTERBUS
(FFI31C option) or PROFIBUS (FFP31C option).
MOVITRAC®
31C offers you direct access to all drive parameters and functions via the DeviceNet
interface. The frequency inverter is controlled via the high-speed, cyclical process data. Via this
process data channel, you can enter setpoints such as the setpoint speed, ramp generator time for
acceleration/deceleration, etc. as well as triggering various drive functions such as enable, control
inhibit, normal stop, rapid stop, etc. However, at the same time you can also use this channel to
read back actual values from the frequency inverter, such as the actual speed, current, device sta-
tus, fault number and also reference signals.
The parameters of the inverter are set exclusively by using Explicit Messages, whereas the process
data exchange is replicated on the DeviceNet services of Polled I/O or Bit-Strobe I/O. This parame-
ter data exchange enables you to implement applications in which all the important drive parame-
ters are stored in the master programmable controller, so that there is no need for manual
parameter settings on the frequency inverter itself.
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MOVITRAC
®
31C DeviceNet FFD31C
5
Introduction 1
Every DeviceNet option card is designed so the fieldbus-specific MAC-ID and baud rate settings are
made using hardware switches on the option card. This manual setting means the frequency
inverter can be integrated into the DeviceNet environment and switched on within a very short
period of time. The parameter setting process can be performed in a completely automated fashion
by the DeviceNet master (parameter download). This future-oriented variant offers the advantages
of shortening the system startup time and simplifying the documentation of your application pro-
gram, because all the important drive parameters can now be stored directly in your control pro-
gram.
01922AEN
Fig. 1: DeviceNet with MOVITRAC
®
31C, MOVIDRIVE
®
, MOVIDYN
®
and PLC
Using a fieldbus system requires additional monitoring functions in the drive engineering, e.g. time
monitoring of the fieldbus (fieldbus timeout) as well as rapid stop concepts. For example, you can
specifically adapt the monitoring functions of MOVITRAC®
31C to your application. You can deter-
mine, for instance, which fault reaction of the frequency inverter should be triggered in the event of
a bus error. A rapid stop is a good idea for many applications, although this can also be achieved
by “freezing” the last setpoints so the drive continues operating with the most recently valid set-
points (e.g. conveyor belt). The range of control-terminal functions is also ensured in fieldbus
mode, so you can continue to implement rapid stop concepts independent of the fieldbus by
means of the frequency inverter terminals.
The MOVITRAC®
31C frequency inverter offers you numerous diagnostic options for startup and
service purposes. For example, you can use the integrated fieldbus monitor to check both the set-
points sent by the master control and the actual values.
Furthermore, you are supplied with numerous additional items of information about the status of
the fieldbus option card. The fieldbus monitor function in conjunction with the MC_SHELL PC soft-
ware offers you an easy-to-use diagnostic facility permitting all drive parameters to be set (includ-
ing the fieldbus parameters) as well as displaying the fieldbus and device status information in
detail.
MOVITRAC 31C
®MOVIDRIVE®
MOVIDYN®
SPS
Communication Interface
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