FCM 300 / FCD 300 / VLT
®
2800 / DP V1 PROFIBUS
■
Quick start
Details regarding the programming of the usual
frequency converter parameters may be gathered
from the Design Guide for the FCM 300, the
FCD 300 and VLT 2800.
The communication is established by setting the
parameters indicated below.
Details regarding the adjustment of the master
are provided by the master manual and by those
chapters in this manual that deal with the particulars
of the VLT PROFIBUS interface.
NB!:
The required GSD file is available on the internet
at http://www.danfoss.com/drives.
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Profibus DP
Parameter 904
The desired informative data telegram (PPO) is setup
in master configuration. The actual PPO type can be
read out in P904. The master sends the PPO type in a
configuration telegram in the Profibus DP start phase.
Parameter 918
This sets the address of the frequency converter
station – one specific address per frequency converter.
For further information, please refer to the section
Station address in this manual.
Parameter 502 -508
By setting the parameters 502-508 you will be able
to select have to control over the bus.
Parameter 512
Allows the choice of Control word/Status word type.
For further information, please refer to the section
Control word/Status word this manual.
NB!:
In order to activate a change of parameter
918 the power of the frequency converter
must be cycled.
■
Baudrate
The FCM 300, FCD 300 and VLT 2800 adjust
automatically to the Baudrate configurated
from the master.
NB!:
When configuring the PPO types, a distinction
is made between module consistency
and word consistency:
Module consistency means that a specific portion
of the PPO is defined as a connected module. The
parameter interface (PCV, length of 8 bytes) of the
PPO always has module consistency.
Word consistency means that a specific portion
of the PPO is divided into individual data sectors
of word length (16 bits).
The process data of the PPO may have either module
consistency or word consistency, as desired.
Some PLCs, such as Siemens S7, require special
functions to call modules that are longer than 4
bytes (in the case of Siemens: "SFC", see master
manual). This means that the PCV interfaces of
the PPOs can only be called through the SFC
functions in the case of Siemens (S7).
■
Profibus DP V1
A detailed description of the DV V1 features supported
can be found in the "Profibus DP V1 Design
Guide" order number MG.90.EX.YY.
Further specifications might be helpful:
-
Technical Guide "PROFIBUS -DP Extensions to EN
50170 (DPV1)" V2.0, April 1998, Order no. 2.082
-
Draft PROFIBUS Profile PROFIDRIVE Profile Drive
Technology V3.0 September 2000, Order no. 3.172
MG.90.A5.02 - VLT is a registered Danfoss trademark
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