Jul 28, 2013
Just as important as stopping a
machine is the restart process. Safety at
Work offers a lot of flexibility. In addition to the
start conditions discussed last week, activation is similar to a
restart condition with relaxed timing conditions.
- - Activation -- In situations
where the timing required by the monitored start is a problem, the
"level-based" Activation can be considered
- - Local Acknowledgment and
Flip-Flop -- these two functions add another level of flexibility
when it comes to restarting a system. These functions will be
discussed in detail at a later stage.