Operating Instructions
Modular Safety Control System MSC
166
(Translation of the original operating instructions) 2121331-04-04/19
9.6.2.1. Application example for the graphic simulation
The following example relates to the use of a press that has been installed inside a safety zone. The motor on the press can
only be operated if two conditions are present at the same time: the gate for the safe area is closed and the command to
activate the motor has been issued. The drive is to start with a delay of two seconds after the start signal.
Diagram
The input elements are represented in the diagram by the door for the safe zone and by the control system for the motor
drive. These two signals are used as inputs for the AND logic operator; the result from this operator is delayed by two
seconds by a delay block. The relay is then operated by the delayed signal; in turn the relay makes it possible to operate
the press motor.
Figure 204: Diagram for the application example
Stimuli file
The stimuli file contains the closing of the gate after 2000 ms (signal at LL1) and the activation command from the operator
at 3000 ms (signal at LL1).
Figure 205: Stimuli file for the application example
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