Firmware update available for all 12CFC and 24CFC based dimmer systems.

This 2020 release allows disabling the Idle Current feature. For incandescent lighting systems, the minimum idle current extends bulb life. But when switching to LED bulbs, the idle current feature can prevent some new solid-state lighting from turning completely off. Now, Idle-Current can be selected with DIP Switch 7 on the control card for all Dove modular dimmer systems as well as the various DM1224 and DM2412 models.

Contact us to have your system updated. Many systems can have the processor reprogrammed (PCB Rev D and later), earlier systems (pre-Rev D) will need a new control card for this feature. Firmware updates will be handled as a repair, which will be $95 plus shipping.

Modular Rack Mount DMX Dimmers

DimmerMaster modular dimmer systems load into standard 19” cabinet racks for customizable installations of 4 to 72 channels per cabinet of 2.4kW dimming. Consisting of a 72 channel control unit and one or more 4 channel dimmer units, DimmerMaster modular dimmer systems are easy to configure and maintain. The control unit has both DMX-512 and analog (0 to +10 VDC) control inputs and features signal present and overtemperature indicators. The dimmer units have power-pole inputs and terminal outputs and feature high magnetic circuit breakers, dual 40 amp solid state relays, and large 450μs risetime filter chokes. Power input to the rack is either three phase 120/208 VAC or single phase 120/240 VAC. Compatible with incandescent and many dimmable LED or fluorescent loads, modular dimmer systems are perfect for houses of worship, television studios, and theatres that want to start with just a few dimming channels but have room to grow. 

MD424

The MD424 modular dimmer is the "muscle" of the modular system — an expandable heavy-duty, 4 channel, 2.4kW rack mount unit. The MD424 mounts in any 19" rack cabinet. The module is 2U (3.5”) tall and approximately 5” deep. The heatsink protrudes 1” and removable handles 1.5” from the front. Expand from 4 channels to 72 or more. Works in conjunction with the MD-CTRL DMX and Analog Interface module.

MD-CTRL

The MD-CTRL, control module, for 19" racks (2U tall and 13” deep) is the "brain" of the modular system. It receives the DMX-512 signal and analog control signals using 1 to 3 24CFC boards to drive as many as 18 MD424s (72 dimmer channels). The control cards are front replaceable plug-ins to facilitate troubleshooting. As many MD-CTRLs as you like can be added to a system to handle any number of desired channels. The MD-CTRL is available pre-configured with 1 to 3 control cards.

Modular Dimmer System Packages