FP-DI-330
6
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Sensing AC Voltages
The FP-DI-330 senses a wide range of AC signals by registering a
constant ON state while an AC voltage is present at an input. The
threshold level for AC signals depends on the frequency of the
signal. For sinusoidal signals with a frequency of 50 or 60 Hz, a
signal of at least 15 Vrms results in a constant ON state. For signals
of 1 KHz and higher, a signal of at least 3 Vrms results in a constant
ON state. At any frequency, a constant OFF state is guaranteed
when the peak voltage is less than 1 V. For AC signals in the
transition region between the 1 V guaranteed OFF voltage and the
guaranteed ON voltages described above, the FP-DI-330 may
register the state as either ON, OFF, or as a signal alternating
between ON and OFF.
Status Indicators
Figure 4 shows the module label and status indicators. You can
remove the insertable label to see wiring diagrams for the input
channels.
Figure 4.
Status Indicators
After the module has been inserted into a terminal base (and
power is applied), the green POWER indicator turns on and the
FP-DI-330 informs the network module of its presence. When
the network module recognizes the FP-DI-330, it sends initial
configuration information to the FP-DI-330. After receiving this
READY indicator turns on and the FP-DI-330 is in its normal
operating mode. In addition to the green POWER and READY
indicators, each channel has a numbered green status indicator
which lights when the channel is in the ON state.
Summary of Contents for FieldPoint FP-DI-330
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