Omron fh-1 series - Setting the Pulse Width for the STEP Input Detection [STEP Signal Filter Setting]

4 Setting the Controller
4 - 50
Vision System FH/FHV/FZ5 Series User’s Manual (Z365)
4-11 Setting the Pulse Width for the STEP
Input Detection
[STEP Signal Filter Setting]
You can set a filter as a countermeasure against STEP input chattering and to prevent operation mal-
functions due to noise.
The STEP signal is detected as being ON at the point it is ON continuously for at least 100 μs, and
measurement begins at that point. Accordingly, STEP signal detection is delayed by an amount of time
equivalent to the set filter value. Also, when turning from ON to OFF, the OFF filter fixed at 500 μs is
activated and the STEP signal is detected as OFF when it is OFF for at least 500 μs.
1 In the Main Window, select [System settings] − [Other] − [Controller] − [STEP setting] from the
[Tool] menu.
2 Set the filter width in the [STEP setting] area.
Important
If you use Multi-line Random-trigger Mode for an FH-series Controller, the value for the STEP
signal filter on line 0 is applied to all lines.
Filter Set Value of 100 μs (Default Value)
Parameter Set value [Factory default] Description
STEP signal filter width [μs] • [100]
•200
•300
•400
•500
Set the filtering width.
ON
OFF
STEP
ON
OFF
STEP
(1) If there is no input chattering
100 μs
(2) If there is input chattering
100 μs
ON is detected when the
signal stays ON for at least
100 μs.
ON is detected when the
signal stays ON for at least
100 μs.
OFF is detected when the
signal remains OFF for 500 μs.
OFF is detected when the
signal remains OFF for 500 μs.