Advertisement
Feeder re-wiring procedure for 12 channel single phase units:
1.
All power feeders should be turned off and disconnected.
2.
Remove the dimmer pack cover by removing the screws around the edge.
3.
Using a flat blade screwdriver, disconnect the 18 AWG red control module power wire from the B phase power
feed terminal block, and move it to the C phase power feed terminal block along with the #18 AWG blue control
module power wire, and terminate using set screw torqued to 35 inch-lbs.
4.
Using a flat blade screwdriver, disconnect the red dimmer module feeder wire pairs with the single and double
red tie-wraps (dimmers 5&6 and 7&8) by unscrewing the set screws in the B phase power feed terminal block,
and sliding the wires out of the back slot.
5.
Move the red dimmer module feeder wire pair with the single red tie-wrap to the A phase power feed terminal
block, slide in the wires deep in the terminal block mounting holes so no wire is exposed past the walls of the
block, and terminate using set screw torqued to 35 inch-lbs.
6.
Move the red dimmer module feeder wire pair with the double red tie-wraps to the C phase power feed terminal
block, slide in the wires deep in the terminal block mounting holes so no wire is exposed past the walls of the
block, and terminate using set screw torqued to 35 inch-lbs.
7.
Cross check:
All black tie-wrapped and single red tie-wrapped feed wire pairs , and the Phase A black 18AWG control module
•
power wire should be fed by the Phase A feeder block
All blue tie-wrapped and double red tie-wrapped feed wire pairs, phase B red 18AWG control module power wire,
•
and the phase C blue 18AWG control module should be fed by Phase C feeder block.
Phase B feeder block should be empty.
•
All load connections should be not exposed, and terminated tightly to 35 inch-lbs.
•
______________________________________________________________________________________________
Output Power Wiring
DS packs are available in a variety of configurations. NEMA 5-15 or 5-20 receptacle, or Stage Pin receptacle
models feature one output receptacle per dimming circuit, while the hard-wired packs feature terminal blocks and a
rear panel with knock-outs.
The lighting load connected to the dimming circuit should be rated for 115/120V and should not exceed the rating of
the dimmer. The ampacity of the dimmer can be seen in the window near the yellow led load indicator on the front
panel, 10 = 10 Amps, 20 = 20 Amps.
The dimmer is capable of driving incandescent , Advance MARK X fluorescent ballasted, or inductive transformer
loads. The load on the dimmer must include the load of the lamp plus the load of the ballast or transformer; and each
ballast or transformer must be individually fused. Transformers should be over-rated by at an additional 70% of their
rated load when operating on an SCR dimming circuit. Other loads may be unsuitable to operation by a SCR based
switching devices, and may operate in an erratic and/or unpredictable fashion. Contact the manufacturer of the load
equipment for details of their power specification.
The proper wiring of a Stage Pin receptacle is not always evident. The center pin is the green grounding conductor;
the pin nearest the ground pin is the white grounded (neutral) conductor; and the remaining pin is the ungrounded
(hot) conductor.
NSI DS8/DS12 MODULAR DIGITAL DIMMING SYSTEM
Software Revision 1.1x, 8/24/99
- 4 -
Advertisement
