TCW241_R4.17
–
October 2022
Page 7
6.2.2.
Digital inputs connection
Attention! Digital inputs are NOT galvanic isolated.
The digital inputs of TCW241 can be used for monitoring of devices with “dry contact” outputs –
door contact switch, push button, PIR detector etc.
The following picture illustrates how a dry contact switch can be connected to the input of
TCW241. One side of the contact is co
nnected to “Digital In” and an
other side is connected to
“GND” terminals.
The maximum cable length should be up to 30 meters.
6.2.3.
Analog inputs connection
Attention! Analog inputs are NOT galvanic isolated.
Analog inputs of TCW241 can be used for monitoring of DC voltage up to 60VDC. They can be
connected directly to batteries, solar panels, power supplies etc.
Built-
in functionality “Multiplier”, “Offset” and “Dimension” f
or every analog input gives a
possibility to monitor sensors with analog outputs and see directly a measured parameter. It is
also possible to monitor voltages bigger than 60 VDC with external resistive dividers.
The following picture illustrates how a battery can be connected to the analog input of TCW241.
The p
ositive terminal is connected to “Analog In” and
the
negative terminal to “GND”.
The maximum cable length should be up to 30 meters.
Summary of Contents for TCW241
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