Manual – MOVIDRIVE® MDX61B DFD11B Fieldbus Interface DeviceNet
5
2
Introduction
2 Introduction
Contents of this
manual
This user manual describes how to install the DeviceNet DFD11B option card in the
MOVIDRIVE®MDX61B drive inverter and how to start up MOVIDRIVE®with the
DeviceNet fieldbus system.
Besides explaining all settings on the fieldbus option card, this document also covers
the various DeviceNet connection variants in the form of brief startup examples.
Additional
documentation
For a simple and effective connection of MOVIDRIVE®to the DeviceNet fieldbus
system, you should request the following publications from SEW-EURODRIVE about
the fieldbus technology in addition to this manual:
•MOVIDRIVE
®Fieldbus Unit Profile manual
•MOVIDRIVE
®MDX60/61B system manual
The manual for the MOVIDRIVE®fieldbus unit profile describes the fieldbus parameters
and their coding, as well as explaining the whole range of control concepts and applica-
tion options in the form of brief examples.
The parameter list is a list of all drive inverter parameters that can be read and written
via various communication interfaces such as RS-485, SBus and even the fieldbus
interface.
MOVIDRIVE®and
DeviceNet
The MOVIDRIVE®MDX61B drive inverter together with the DFD11B option and its high-
performance universal fieldbus interface enable the connection to higher-level automa-
tion systems via the open and standardized DeviceNet fieldbus system.
Unit profile
The performance of the inverter, referred to as the unit profile, that forms the basis for
the DeviceNet operation, is fieldbus-independent and, therefore, uniform. This allows
the user to develop fieldbus-independent drive applications. This makes it much easier
to change to other bus systems, such as PROFIBUS (DFP 21B option) or INTERBUS
(DFI11B option).
Drive parameters
MOVIDRIVE®offers you direct access to all drive parameters and functions via the
DeviceNet interface. The drive inverter is controlled via the fast, cyclical process data.
Via this process data channel, you have the opportunity of entering 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, standard stop, rapid
stop, etc.
At the same time you can also use this channel to read back actual values from the drive
inverter, such as actual speed, current, unit status, error number or reference signals.
Polled I/O and Bit
Strobe I/O
The parameters of the inverter are set exclusively using
Explicit Messages
, whereas the
process data exchange is replicated on the DeviceNet services
Polled I/O
and
Bit-Strobe I/O
. This parameter data exchange enables you to implement applications in
which all the important drive parameters are stored in the master programmable control-
ler, so that there is no need to make manual parameter settings on the drive inverter it-
self.
