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3.6 Driving and operating modes of LinMot®

3.6.1 Driving concept System Overview

The basic idea of LinMot® P consists in having the control tasks executed as peripheralas possible in order to free the higher-level control systems from unnecessary andcalculation-intensive ballast. The system configuration is therefore accordingly simple,as the higher-level control system just outputs the actual target value and monitorssome feedback information. The following sections will implicitly refer to LinMot® Plinear motors as actuators when no specific indication is provided. In this case thetarget value consists in the position set value to which the drives should move, whilethe feedback information typically represents a following error message. In the case ofstepper motors and electromagnets these statements can be interpreted by analogy.

Figure 3-3: LinMot®’s peripheral position control frees the higher-level control

system from calculation intensive tasks.

3.6.2 Operation modes

Different modes of operation are available to the user. These allow optimal embeddingof the actuators in the control concept of the machine and the respective application.The LinMot® AT software currently supports the following modes of operation: direct digital reference value setting

setting two target values depending on a high/low signal

executing two predefined curves based on a trigger signal

continuous operation, e.g. periodical execution of a curve

In all these modes a filter can be connected in order to limit the derived signals like forexample the speed or acceleration. The following table shows typical applicationexamples for the different modes of operation.