Installation and Connections
XW-210 WiFi™ Users Manual
2.5.4 AC Input Connections
If an AC signal voltage needs to be detected, use a signal conditioner to convert the AC signal to a DC
voltage within the input range. An AC signal conditioner can be made using a diode (or bridge rectifier)
and a capacitor. Prepackaged signal converters are available as accessories at industrial automation
distributors. A simple voltage converter module (RedLion VCM10000 or VCM20000) is shown below.
These are available in two input voltage ranges that cover the spectrum from 4-270VAC/DC. These
devices have a MOSFET output (solid state DC contact closure) which is compatible with the XW-210
input. The converter module accepts AC (50/60 Hz) or DC voltages with an input pulse rate up to 30 Hz.
The converter provides isolation between the input and output using an opto-isolator. You must provide a
voltage source for the converter circuit as shown in the example below:
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Xytronix Research & Design, Inc.
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