6
6.3
Axis couplings (from SW 3.3)
6-460
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Example:
In Fig. 6-40 it is shown how a differentiation can be made between
these three stop classes as well as the withdrawal of the controller
enable from the three output signals ”status, controller enable”, ”fault
present” and ”warning present”. Furthermore, it is indicated how the
master drive and therefore the other slave drives could respond to
these signals.
Note
The logical operations can be further optimized for the displayed
behavior. However, at this position, it is important that a differentiation
can be made between the various fault classes.
Slave drive
Warning present
Fault active
Status, controller enable
&
&
&
&
–1
STOP I – III
Master
drive
T. 65.x
Axis–specific
controller enable
Operating condition/
reject traversing task
Operating
condition/intermediate
stop
Controller enable
STOP IV – VI
STOP VII
Output signals
Fig. 6-40 Example: Handling faults in the slave drive through the master drive
Faults in the master drive can be just as flexibly handled as the faults in
the slave drive which were discussed above.
In this case, the master drive output signals are used, and are corre-
spondingly connected to the input signals of the slave drive.
For an actual value coupling, it is not absolutely necessary to handle
master drive faults, as the slave drive follows the actual value of the
master drive anyway, and brakes when a fault situation develops.
On the other hand, for a setpoint coupling, it should be ensured that
when the setpoints fail, the group of axes is correctly stopped.
Faults in the
master drive
6 Description of the Functions
01.99