DSP 402 drive profile
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TR-Electronic GmbH 2007, All Rights Reserved
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05/16/2007
3 DSP 402 drive profile
The linguistic devices for controlling the drive are extensively independent of the
manufacturer. For this reason, communication between the drive and the
superimposed control system has been standardized in so-called
drive profiles
.
A
drive profile
specifies how an electrical drive is controlled via a field bus. It defines
the behavior of the device and the method of accessing the drive data. The following
sub areas in particular are controlled:
•
Control and status monitoring
•
Standardized
parameterization
•
Changing operating modes
encoTRive supports the DSP 402 profile (CiA [2002b]) as CAN node
The following information is typically exchanged between a master (e.g. control
system) and a drive, which assumes a "slave" function:
The drive provides information on its current status (e.g. "
Drive running"
) and possibly
additional information such as the current position, current speed etc. In the other
direction, the control system assigns positioning orders, for example, (
"Move at speed
x to position y"
). Without the DSP 402 profile, each manufacturer would have to
specify its own protocols for the transmission of commands and status messages, and
there would consequently be many applications performing the same task in different
ways.
Figure 1: CANopen application profiles
