User Manual

12
3.3 Connecting PSUs together
PSUs can be connected together to form a stack. PSUs interconnect via the PSU
accessory ports on top and the bottom, to accommodate larger light xtures.
Joining PSUs together is similar to mounting a communications module. The
order of individual Slave PSUs in the stack is unimportant, however the Master
PSU (as of rmware v1.07.1) is the only one to retain menu settings. Both the
Master and Slave PSUs retain the last shown light after a power cycle. In case a
Slave PSU becomes the Master, its menu settings take effect for the entire stack.
3 | Installation instructions
PSU stack is at least 2 (two) PSUs that
are connected physically so that they
operate on a single communication
bus. Top PSU in the stack is always the
Master that assumes control over the
other PSUs that are called the Slaves.
Depicted here is a 3-PSU stack with (1)
being the Master PSU, (2) and (3) being
the Slave PSUs.
In case of PSU errors, a PSU number in
the stack is displayed on Master PSU
screen to indicate the erroneous PSU,
with the numbers in the order from top
to bottom.
To join two PSUs together and start
forming a stack, align the guide pin of
the top PSU with the mounting hole of
another PSU so that contact pads align
properly. Using the supplied 5 mm hex
key, fasten the bolt to secure two PSUs
together.