Teach Function - Mitsubishi Electric WS0-CPU0 Operating Manual

Chapter 8
Note
ATTENTION
113
Flexi Line
8.2.5

Teach function

The topology of the Flexi Line system must be confirmed to activate the function. It
can be executed using the Setting and Monitoring Tool. If it is to be possible to
change the topology of the system later, an integrated Teach function is also
available in the logic.
Any change in the topology of a Flexi Line system immediately stops the Flexi Line
communication. Communication is only re-initialized and restarted after the Teach
function is run.
Before you use the Teach function, check whether a dangerous state can
occur!
If the Teach function is used, the safety outputs on any of the still active stations
may be High.
 Analyze your application and check whether additional safety measures have to be
implemented if the Teach function is enabled.
 Consider how to handle the disconnected machine modules. Point out that the
control parts and sensors have no effect to the previously connected machine
modules (e.g. install "out of order" signs at E-stops).
 The teach function must be considered as a configuration process. Therefore the
Teach function needs to be secured according to the respective safety
requirements, e.g. by using a key operated switch that is wired to the logic teach
input and a restart function block in the logic to check the timing condition.
 Only authorized and especially trained personnel are allowed to activate the Teach
function.
 Before using the Teach function, make sure that nobody is in the hazardous area or
has access to the hazardous area while the Teach function is active.
 After using the Teach function, check the safety function of the entire Flexi Line
system.