AMX Network Card RDM FDB User Manual

Installation Sheet  
RDM-FDB Single Channel Lutron FDB Ballast Dimmer  
1920 W  
The RDM-FDB Single Channel Ballast Dimmer is a 1920 W positive air gap  
Connecting the RDM-FDB to the AMX Lighting Master  
relay and dimmer, built for strength and for reliable switching/dimming of  
Lutron FDB ballasts. It is designed for use with the RDA series of enclo-  
sures, in a AMX Lighting™ modular digital dimming system. The RDM-FDB  
module's 120, 240, and 277 VAC ratings are CE, UL, and C-UL approved.  
Mounting points  
Pin 4 (GND)  
Pin 3 (RLY)  
Pin 2 (DIM)  
Pin 1 (+12 V)  
RDM-FDB 4-pin module connector  
3 (-)  
Line in (hot)  
Switched out  
Dimmed out  
2 (AC)  
Ballast A  
Relay  
1 (+)  
4-pin plug from RDM series module  
Note: The 4-pin plugs from the module connector  
to the 4-pin connector on the master (black plug cover facing up).  
Positive air  
gap relay  
Fuse  
FIG. 2 RDM-FDB connections  
Lighting Appplication Drawing  
All neutrals are  
common to the  
Neutral block in the  
enclosure. Provide  
a separate neutral  
Neutral  
for each load.  
Neutral  
Line in (HOT)  
Florescent  
Ballast  
Ballast  
Switched  
Dimmed  
Low-voltage  
control wiring: 4-pin  
connector to AMX  
Lighting master  
controller  
The fuse protects the dimming  
circuit from a low impedance  
load.  
Circuit breaker  
panel  
The fuse would blow if it  
were incorrectly wired  
Catastrophic ballast failure  
Reversing switched and  
dimmed circuits  
FIG. 1 RDM-FDB  
RDM-FDB UL and C-UL Ratings  
Reversing dimmed and  
line circuits.  
120 VAC, 1920 W  
240/277 VAC, 1920 W  
The dimmed output must be  
connected to a high impedance  
load.  
Suggested Dimmed Loads  
Most 3-wire dimmable fluorescent ballasts  
FIG. 3 RDM-FDB wiring configuration  
©
®
Lutron Hi-Lume FDB Ballasts  
®
Lutron Eco-10 Ballasts  
Specifications:  
Dimensions (HW): 10.0" x 2.75" (25.4 cm x 6.99 cm)  
Dimmed output protected by a 250 mA GMA 5 x 20 mm fuse  
Phase dependant  
Use wires rated at 75°C (167°F)  
Torque terminals to 20 in-lbs. (2.3 N/M)  
Max. wire size: 10 AWG (4 mm²)  
Wire stripping length: 0.28" (7 mm)  
Weight: .72 lbs. (0.327 kg)  
BTU/hr: 5  
Control current: 85 mA @ 12 VDC  
For use with FDB ballasts  
Caution: Pre-Installation Notes  
All Class 1 wiring must be connected to proper terminals.  
All control wiring must be connected to proper terminals.  
Disconnect power while installing or connecting the unit.  
Keep top and bottom air vents clear at all times.  
Use field installed copper conductors.  
All electrical ratings are for continuous duty.  
For indoor use only.  
This module may require extra power from the AXlink connection or an  
external power supply connected to the control card.  
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