Installation Sheet
RDD-DM4 4-Channel Integrated Dimmer Module 120,240,277 VAC
The RDD-DM4 Four-Channel Integrated Dimmer Module controls up to six
dimmed channels with four 1200 W onboard dimmers and two satellite
connectors (for RDM series dimmer or switching modules). It is designed
for use with the RDA series of enclosures, in an AMX Lighting™ modular
digital dimming system. The RDD-DM4 is controlled by AXlink, PROlink, or
by dry (contact) closures. The RDD-DM4’s 120, 240, or 277 VAC ratings are
CE, UL, and C-UL approved.
Mounting
points
Powe r
device
Bridge
Line In
High-voltage
connections
Load out
AXlink
address
DIP switch
PROlink
address
DIP
switch
Low-voltage
control
wiring: 4-pin
connectors
to RDM
series modules
Dry Closures
AXlink
connector
PROlink
Neutral
Chokes
Reset
button
Memory
Protect
jumper
External
+12 V
power
connector
(optional)
FIG. 1 RDD-DM4 4-channel Integrated Dimmer Module
RDD-DM4 UL and C-UL Ratings: (per circuit)
Input
• 120, 240, 277 VAC, single phase, 3-wire, 50/60 Hz, 2400 W, one feed
• 120 ,240, 277 VAC, single phase, 4-wire, 50/60 Hz, 4800 W, dual feed
Output
• 1200 W max. per channel @120, 240, 277 VAC
• 2400 W max. total, all four channels on with 2400 W feed
• 4800 W max. total, all four channels on with dual 2400 W feeds
• Feed circuit #1 goes to dimmer 1 and 3; feed circuit #2 goes to dimmer
2 and 4.
Specifications
• Dimensions (HW): 5.87" x 10.0" (149.00 mm x 254.00 mm)
• 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: 0.35" (9 mm)
• Weight: 4.5 lbs (2.04 kg)
• BTU/hr: 300 single feed (2400 W); 600 dual feed (4800 W)
• Power consumption: 50 mA @ 120 VAC, 25 mA @ 240 VAC, 22 mA
@ 277 VAC
• Control port current: 200 mA @ 12 VDC
Loads:
Suggested Loads
Dimmed Switched (at 600 W)
Incandescent Fans
Low-voltage Florescent ballast
Neon, cold-cathode Motors
Button/Jumper Information:
• RESET button: By pressing the RESET button, located on the
RDD-DM4 circuit board, it is possible to restart the processor without
having to power-down the unit or disconnect AXlink or PROlink.
RESET does not affect any saved presets or curve settings.
• MEMORY PROTECT on/off jumper: The MEMORY PROTECT
jumper is set to Off by default. When put in the On position, saved
curve settings and presets are protected in case of a power failure.
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.
• AC lighting loads only.
• This module may require extra power from the AXlink connection or an
external power supply connected to the control card.
Connecting the RDD-DM4 to the AMX Lighting Master
Pin 4 (GND)
Pin 3 (RLY)
Pin 2 (DIM)
Pin 1 (+12 V)
RDD-DM4 4-pin module connector
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 RDD-DM4 connections
Connecting AXlink:
Connect the 4-pin captive-wire AXlink from the RDD-DM4 to the Central
Controller for AXlink control of the dimming system.
(optional)
RDD-DM4
PWR
AXP
AXM
GND
PWR
AXP
AXM
GND
Central
Controller
FIG. 3 Connecting AXlink
Connecting PROlink:
Connect the orange 4-pin captive-wire PROlink connector from the
RDD-DM4 to a PRO-DP8 PROlink wall panel.
PRO-DP8 Pack 1 Pack 2
+12
PR+
PR-
GND
FIG. 4 Connecting PROlink
+12
PR+
PR-
GND
Line-in Connections:
20 A
FIG. 5 Line-in Connections
Dual 20 A Inputs
Bridged 20 A Input
Using two feeds for line 1 and line 2 provides
two, 20 A inputs.
Bridging line 1 and line 2 provides a single
20 A input.
Connecting Dry Closures:
Use the 8 (+ common) dry closures with a WPD8 eight-button wall panel.
1
2
5
78
3
6
4
COM
Each contact (1 - 8) is preprogrammed with a default preset.
Refer to the AMX Lighting Control
System instruction manual for
details on dry closure default presets
and recording new presets.
FIG. 6 Dry closures connection
Each contact closure connection (1 - 8) is pre-programmed with a default
preset. The table below shows the default presets for each contact
closure.
Lighting Application Drawings
Dry Closure Default Presets
Contact Closure Default Function
1 Channel 1 at 100% in 1 second
2 Channel 2 at 100% in 1 second
3 Channel 3 at 100% in 1 second
4 Channel 4 at 100% in 1 second
5 Channel 5 at 100% in 1 second
6 Channel 6 at 100% in 1 second
7 Pack on (channels 1-6)
8 Pack off (channels 1-6
All other channels are undefined.
Setting AXlink and PROlink Address Numbers:
AXlink Address PROlink Address
Set the AXlink address number
(1-255) for the RDD-DM4. This
number must match the device
number in your Axcess program.
Use the PROlink DIP switch to set
the PROlink address number for the
RDD-DM4 (1-10).
Pin 8 on the PROlink DIP switch is
a test switch that turns all circuits on
to full.
FIG. 7 Setting AXlink and PROlink address numbers
Te st
FIG. 8 Method A
Method A
120 VAC 1Ø /
Single-phase, four load
Method B
Typical 120 VAC
Single-pahse, four-wire
dual-feed
FIG. 9 Method B
AMX Corporation reserves the right to alter specifications without notice at any time.
For full warranty information, refer to the AMX Instruction Manual(s) associated with your Product(s).
The AMX logo is a trademark of AMX Corporation. AMX reserves the right to alter specifications without notice at any time.
3000 research drive, richardson, TX 75082 USA • 469.624.8000 • 800.222.0193 • fax 469.624.7153 • technical support 800.932.6993
043-019-2194 8/02 ©2002 AMX Corporat ion. All rights reserved.