Festo Электромотор MTR-DCI - Manual (Page 129)

5. Commissioning
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Festo P.BE-MTR-DCI-DN-EN en 1209a
The MTR-DCI cannot work in a stand-alone manner, i. e. it
does not support any user program of its own. Records
cannot be processed automatically using programmable
logic. The drive cannot accomplish any practical tasks in
stand-alone mode; close coupling to the PLC is always
necessary.
There are also three records with special functions (which
cannot be executed in record selection mode):
– Record 32 contains the parameters for jog mode.
– Record 33 contains the parameters for direct mode.
– Record 34 is the direct record for the FCT software.
Direct task
In direct task mode positioning tasks are formulated directly
in the master's output data.
Positioning mode A typical application dynamically calculates the nominal
target values for each task, or just for some tasks. Adaptation
to different workpiece sizes is therefore possible. In this case,
it is not practical to assign parameters to the record list every
time. The positioning data are managed completely in the PLC
and sent directly to the MTR-DCI. Here also, close coupling
between the PLC and the MTR-DCI is necessary.
Force mode Alternatively, nominal values can be specified in Direct mode
relative to the nominal motor current. This gives a torque
and, in the case of linear drives, a force (= force control).