ETC Unison ERn Rack-mount Control Enclosure - Manual (Page 30)

26 Unison ® ERn Rack Mount Enclosure Installation Manual
the connector provided. Reference the related station installation manual for
further details.
Step 8: Replace the connector to the rear panel I/O.
Terminate Auxiliary Power
Auxiliary power is required when you are installing powered Unison control stations. ETC
recommends using two 16 AWG (1.5mm 2 ) stranded wires for 24 Vdc auxiliary power to the
control station(s). Auxiliary power is topology-free. Maximum auxiliary voltage runs are
dependant by the wire gauge and the distribution of auxiliary load determined by each
installation. the auxiliary supply is capable of 36W (1.5A at 24 Vdc).
The auxiliary power connector (labeled Aux Power) provides
termination for up to 20 wires in the ten position pluggable
connector. Each terminal allows up to two 16 AWG (1.5mm
2
)
wire and provides 24 Vdc power to Unison control stations when
used with the Paradigm ACP.
Step 1: Pull auxiliary control power wiring (typically 16 AWG
(1.5mm
2
) red / black wire pair) to the ERn rear panel.
Step 2: Strip 3/16” (4.8mm) of insulation from the ends of
each wire pair.
Step 3: Remove the auxiliary power connector from the I/O
board.
Step 4: Loosen the terminal screws for as many auxiliary wire
pairs as you are terminating.
Step 5: Insert the black (typical) auxiliary power wire from the
pair into a “-” terminal on the connector and tighten the screw to secure the wire
into the connector.
Step 6: Insert the red (typical) auxiliary power wire from the pair into a “+” terminal on the
connectors and tighten the screw to secure the wire into the connector.
Step 7: Repeat steps 5 and 6 for all auxiliary power wires in the enclosure.
Step 8: Replace the connector to the rear panel I/O.
N o t e : It is required that you terminate LinkPower station wiring and the auxiliary power
wiring to the ERn rear panel I/O board that will host the Paradigm station power
module (P-SPM).
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+
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+
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+
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+
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+