Omron H5CX-L Manual page 50

Safety Precautions (H5CX-B)
Precautions for Safe Use
Changing the Set Value
When changing the set value during a timing operation, the output
will turn ON if the set value is changed as follows because of the use
of a constant read-in system:
Forecast Value Setting
When the present value ³ the set value, OUT2 (control output) turns
ON. When the present value ³ the forecast value (forecast value =
set value - forecast set value) OUT1 (forecast output) turns ON.
Absolute Value Setting
When the present value ³ set value 2, OUT2 (control output 2) turns
ON. When the present value ³ set value 1, OUT1 (control output 1)
turns ON.
Precautions for Correct Use
Operation with a Set Value of 0
When the set value is 0, the output turns ON the moment the signal
is input. The reset operation turns OFF the output.
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Digital Timer
H5CX