Phoenix Contact PSRmodular - Figure 5-67 ZERO-AND-OVER-SPEED Function Block

Items and operators of the PSRmodular Software
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5.2.2.4 ZERO-AND-OVER-SPEED function block (zero-speed monitoring and
safe limited speed (SLS) in accordance with EN 61800-5-2)
The “ZERO-AND-OVER-SPEED” function block checks the speed of a drive by setting the
“Z
ERO” output to logic “1” if the speed is less than the parameterized “Zero speed limit”. If
the speed is greater than or equal to the parameterized “Zero speed limit”, the “Z
ERO” output
is set to logic “0”.
In addition, the function block sets the “Over” output to logic “0” if the measured speed ex-
ceeds a predefined limit value.
Figure 5-67 “ZERO-AND-OVER-SPEED” function block