AMX Network Card RDM ZC User Manual

Installation Sheet  
RDM-ZC Zero Cross Module  
2400 W  
The RDM-ZC Zero Cross Module is a 2400 W zero-cross relay built for long  
term, reliable switching of electronic fluorescent ballasts, electronic trans-  
formers and incandescent lamps. It is designed for use with the RDA series  
of enclosures, in an AMX Lighting™ modular digital dimming system. The  
RDM-ZC module's 120, 240, and 277 VAC ratings are CE, UL, and C-UL  
approved.  
This module may require extra power from the AXlink connection or an  
external power supply connected to the control card.  
Connecting the RDM-ZC to the AMX Lighting Master  
Pin 4 (GND)  
Pin 3 (RLY)  
Pin 2 (DIM)  
Mounting points  
Pin 1 (+12 V)  
RDM-ZC 4-pin module connector  
High-voltage  
connections  
Line in (hot)  
Load out  
3 (-)  
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).  
FIG. 2 RDM-ZC connections  
Lighting Application Drawing  
All neutrals are common  
to the Neutral block in the  
enclosure. Provide a  
separate neutral for  
each load.  
Neutral  
Zone 1  
Zero cross  
relay  
Load  
Line in (HOT)  
Incandescent track  
lighting  
Low-voltage control  
wiring: 4-pin connector  
to AMX Lighting master  
controller  
FIG. 1 RDM-ZC  
Fluorescent Ballast  
BALLAST  
RDM-ZC UL and C-UL Ratings  
120-277 VAC, 50/60 Hz, 2400 W  
240/277 VAC, 50/60 Hz, 2400 W  
Circuit breaker  
panel  
Neutral  
Load  
Suggested Switched Loads  
Incandescent  
Electronic transformers  
HID ballast  
Neutral  
Load  
Neon lights  
(cold-cathode, on/off)  
Electronic and magnetic ballast  
FIG. 3 RDM-ZC wiring configuration  
Specifications  
Dimensions (HW): 10.00" x 2.75" (25.40 cm x 6.99 cm)  
Non-phase dependant  
Use wires rated at 75°C (167°F)  
Torque terminals to 7 in-lbs. (0.8 N/M)  
Max. wire size: 10 AWG (4 mm²)  
Wire stripping length: 0.28" (7 mm)  
Weight: 1.5 lbs. (0.68 kg)  
BTU/hr: 150  
Control current: 45 mA @ 12 VDC  
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.  
Test loads for shorts before connecting.  
Use low voltage wires with a 300 volt rating or greater.  
Use field installed copper conductors.  
All electrical ratings are for continuous duty.  
For indoor use only.  
 

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