16
The remote control inputs should be connected to the first unit, and the same control options are
available as for a single-unit system. If confirmation feedback is required for a central controller,
use the aux relay contacts on the last unit.
If the low and high voltage shutdown points are narrowed from their defaults of 90V and 150V
this should be done on the first unit only. The other units should be left set to 90V and 150V.The
two restore options should only be enabled (if required) on the first unit.
If an over-ride is required connect it to the first unit.
6.5
Cascaded System
A cascaded system consists of two or more XR315s connected together such that they turn on
and off one after another. Connecting a cascaded system together is a little more complicated
than the other types of system because there must be feedback from each unit to the previous unit
as well as control from each unit to the next unit. The 12V dc output (terminal 4) is used as the
feedback source and the over-ride input (terminal 3) is used as the feedback input. Figure 6
shows how to connect and program each unit in a three-unit system. Note that terminals 5 and 6
are connected together for all units except the last one. If only two units are to be cascaded
together then ignore the middle unit in the diagram. If more than three units are to be cascaded
together then keep the first and last units set up as shown, add units in the middle and set them
up and connected them in the same way as the middle unit in the diagram.
The remote control inputs should be connected to the first unit, and the same control options are
available as for a single-unit system. If confirmation feedback is required for a central controller,
use the aux relay contacts on the last unit.
If the low and high voltage shutdown points are narrowed from their defaults of 90V and 150V
this should be done on the first unit only. The other units should be left set to 90V and 150V.The
two restore options should only be enabled (if required) on the first unit.
If an over-ride is required connect it to the last unit and program that unit to accept the type of
over-ride you need.
