Eaton - Lighting Systems iLight Product Series - UIG-2 73-898-00 IM8840 Iss.02 6
Input and Output Connection
Analogue / Digital Inputs
The UIG-2 has 4 inputs that can be individually
configured for either analogue or digital
operation.
Opto-isolated Digital Inputs
The unit has four opto-isolated digital inputs.
These inputs offer greater electrical protection
than the analogue/digital inputs, but can only
be used in digital mode.
The opto-isolation also offers better electrical
noise rejection for those installations where
this could be a problem.
To use these inputs, an external supply is
required, connected to the 12Vin pin.
0VOpto is provided as a landing connection for
convenience. An LED gives visual indication
when a supply is connected across 12Vin and
0Vopto.
Instead of an external supply, the 50mA
current limited 12Vout supply can be used,
however this will bypass the optical isolation.
To use this supply, connect 12Vout to 12Vin
and 0V to 0Vopto at the connector.
Switch closure is made between the input and
0Vopto. Wire distance from the device to the
UIG-2 should not exceed 10m (32 feet).
The function of each input is programmable
with iCANsoft.
Analogue Mode
In analogue mode, the inputs have a voltage
range of 0V to 10V. The input device is
connected across the appropriate input and the
0V reference. Wire distance from the device to
the UIG-2 should not exceed 10m 32 feet).
50mA current limited, regulated voltage
sources of 5V and 12V are also available at the
connector for devices such as variable resistors
without the need for an external supply.
Should the power supply to the UIG-2 be
below 12V, then the 12V source will follow the
UIG-2 supply voltage.
Digital Mode
In digital mode, switches can be connected
between the appropriate input and 0V.
The input functions can be programmed to
operate on both a switch closure and release.