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9-5-4. Hysteresis on comparator
The comparator S1, S2, S3 and S4 in the instrument can set hysteresis for prevention from chattering
at output relay.
Hysteresis can be used by the combined of data width and time width. Moreover, effective direction for
hysteresis can be selected from either [OFF delay] or [ON delay].
These selections can be made in Function mode. (Related are F-24, F-25 and F-26).
Default is set to hysteresis [OFF].
Depending on the setting of comparator hysteresis, ON/OFF condition for each output way differ. It
wrong mode is selected, ON/OFF condition for each output become inadequate and it may cause an
unexpected accident due to malfunction on peripheral instruments, so care should be taken fully.
As for the example of S1, the operation of judgment display section when the hysteresis on
comparator is set, will be shown as follows：
The same operation will be obtained in the case of [Normal mode] at S2, S3, S4 and S0.
(1) When the operation of [Set value or more] is selected at S1 and also effective direction for hysteresis
is set as [On delay].
(2) When operation of [Set value or more] is selected and [OFF delay] is selected for hysteresis effective
width with S1.
Display
Time→
S1 output ON
S1 output OFF
Hysteresis time width
Hysteresis data width
S1 setting value
Display
Time→
S1 output ON
S1 output OFF
Hysteresis data eidth
Hysteresisi time width
S1 set value
Hysterisis time width
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