Wiring - Distech Controls SC-AI Installation Manual

Wiring

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Deactivate the 24 Vac power supply until all connections are made to the device to prevent electrical shock or equipment damage. Follow proper
electrostatic discharge handling procedures when installing the device or equipment damage may occur.
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Use 22 AWG shielded wiring for all connections and do not locate the device wires in the same conduit with wiring used to supply inductive loads
such as motors. Make all connections in accordance with national and local codes.
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Connect the AC power supply to the two AC terminals. This is the input to the on-board transformer and has no other connection, so it is a completely
isolated supply.
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Ensure the supplied power is within the device ratings. Power supply voltages outside the ratings may cause over-heating, device damage, or
unreliable operating.
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The analog input signal is connected to the IN+ and IN- terminals and the analog output signal is connected to the OUT+ and OUT- terminals. The
input and output signals are completely isolated from each other.
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The 24V terminal is a regulated power supply output which provides a 24 Vdc power supply at 30 mA maximum that can be used to power an external
sensor.
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Study the wiring diagrams for proper connections with various input/output signal types and with both sinking or sourcing applications.
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