ETC Unison DRd Dimming Rack Enclosure - Manual (Page 47)

5
Install Option Kits 43
Connect DALI Option Wiring
It is important to label the DALI fluorescent ballast load and control wiring sets with the
circuit designation. Control wires terminate on the associated DALI board output loop
terminal.
For example: If circuit 1 is configured as a D20 in DALI dimmer mode, DALI fluorescent
ballast control wiring should terminate to the DALI board loop output terminals labeled “1”.
Step 1: Remove the DALI bus connector for loop outputs 1-6.
Step 2: Strip each wire in the pair back 1/4 inch (6mm).
Step 3: Using a small 3,35mm or 1/8” flat blade screwdriver, loosen the terminals and
insert each wire into the data “+” or data “–” terminals for the specific circuit loop.
Data wires in the wire set are polarity independent.
Step 4: Tighten the terminal screw until the wire is held snugly.
Step 5: Repeat steps 1 through 4 for the remaining DALI loops through loop 6.
Step 6: Replace the DALI bus connector on the DALI board and repeat for the remaining
DALI loops in the system (up to 24 loops).
*Maximum Run Lengths for Class 1 wiring
18 AWG
1mm
2
16 AWG
1.3 mm
2
14 AWG
1.6 mm
2
12 AWG
2 mm
2
**Max.
aggregate run
length
feet meter feet meter feet meter feet meter feet meter
570 175 900 275 1,430 435 2,280 700 3000 900
*Maximum Run Length - the longest distance between any device and any power supply on
the DALI bus.
**Maximum Aggregate Run Length - the longest total length of all total wiring connected to
the DALI bus.
N o t e : The lug number inside the enclosure should match the control line number
designation regardless of whether the DRd is configured for straight or balanced
numbering.
2008
Label
Each of the four bus connectors on the option board provide
termination for six DALI loops. Each bus connector is labeled
for ease of loop identification and is pluggable for ease of
wiring termination. Terminals accept 12-24 (4 - .25mm 2 ) AWG
Class 1 wire.