DDM-880 Dimming Module

DDM-880 Dimming Module Lighting Control for Automation

DDM - 880 Dimming Module Lighting Control for Automation

Delta Controls’ DDM-880 dimming module are specifically designed for Daylighting applications using dimmable ballasts. These dimming modules connect to Delta’s BACnet™ Controllers over Delta’s LINKnet network.

Each of the device’s eight outputs is capable of controlling up to fifty 1-10V dimming ballasts. Each output has an associated photocell input with a calibration potentiometer to adjust sensitivity of the input which the controller uses in a built-in Proportional-Integral (PI) loop to smoothly adjust the lighting levels to the desired setpoint.

Application

The DDM-880 provides up to eight channels of simple distributed daylighting control per module reducing field wiring by being able to locate the module close to the zones being controlled.

Features

  • Built-in PI control loop
  • Communicating on LINKnet
  • Easy-to-mount housing
  • Calibration potentiometer for photocell inputs

Inputs

8 x Analog Photocell Inputs – 10 bit

Calibration potentiometer

Outputs

8 x 1-10V Analog Outputs

25mA current sinking each

Technology

8-bit Processor with internal A/D,

Flash and RAM

Communications Port

LINKnet connection

Delta LINKnet @76,800 bps

RS-485

Device Address

Set via dip switch

Address range: 1 to 12

Connectors

Removable screw-type terminal connectors

Wiring Class

Class 2

Power

24 VAC

15 VA

Ambient

-40o to 140oF (-40o to 60oC), with enclosure

10 - 90% RH (non-condensing)

Internal electronics rated from -40o to 85o

Dimensions

7 5/8 x 4.0 x 1 7/8 in. (19.2 x 10 x 4.8 cm) with housing

0.55 lb. (250g) with housing

Listings

UL916 Listed

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Categories:
  • Centralized Lighting Control