Datasheet

62 Safety Precautions H7CX Series
Safety Precautions (H7CX-R)
■ Precautions for Safe Use
Changing the Measurement Value
The H7CX-R uses a constant read-in system, so the output status is
affected when the comparison values are changed during operation
such that the present measurement value falls within the range of the
upper- and lower-limit comparison values.
Turning ON the Power using the
Factory Settings
When the power is turned ON using the factory settings, the output
will turn ON after 999.9 s if no pulses are received as count input.
■ Precautions for Correct Use
Comparison Value Settings
In upper and lower limit output mode, if the comparison value setting
is such that comparison value 1
≥ comparison value 2, the output will
always be ON.
Using the Prescaling Function
Setting the prescale value incorrectly may result in incorrect counting
operation. Be sure to set the prescale value correctly.