SMC Networks PF3A801H-L - Impact of Zero Cut-Off on Set Points

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No.PF※※-OMY0005
●When the set value and hysteresis of the switch output (OUT1/OUT2) is set within the zero-cut range.
The operating point of the switch output will be changed, depending on the zero-cut setting value.
However, please note that the set value and hysteresis of the switch output will not be changed.
To maintain the on-off point, set the value and hysteresis without the zero cut-off range.
<Example: PF3A801H (1000 L/min type>
Common setting
Output mode
Hysteresis mode
Switch operation
Normal output
Set value (P)
25
Hysteresis (H)
10
Initial setting
Zero cut-off setting CUt: 1.0 (displays 0 for a value below 10 L/min)
Switch ON point
25 L/min or more
Switch OFF point
Below 15 L/min
～Condition when the operating point of hysteresis (H) is changed～
•The zero-cut setting CUt: 1.0 will be changed to CUt: 2.0. (0 will be displayed for a value below 20 L/min)
Switch ON point
25 L/min or more
Switch OFF point
Below 20 L/min (0 is displayed)
～Condition when the operating point of the set point (P) and hysteresis (H) is changed～
•The zero-cut setting CUt: 1.0 will be changed to CUt: 3.0. (0 will be displayed for a value below 30 L/min)
Switch ON point
30 L/min or more
Switch OFF point
Below 30 L/min (0 is displayed)
Change the zero cut-off setting
The set value (P) and hysteresis (H)
cannot be changed.