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LDM-PH
Photo Sensor for LED DALI Dimming Module
Overview
LDM-PH is an illumination sensor for LDM modules. It connects to the LDM module, senses illumination levels, and transmits the data to control LED brightness through dimming.
Additionally, the sensor sends illumination data to upper-level software via the DALI communication network, allowing monitoring from a central control system.
Additionally, the sensor sends illumination data to upper-level software via the DALI communication network, allowing monitoring from a central control system.
Feature
- Sensor Type: Photo Resistor
- Illumination sensor dedicated for LDM
- Detection range: 5–2,000 Lux
- Direct connection to LDM for individual control and group control up to 64 modules via one DALI Master
- Photo sensing enable/disable selectable
Operation
Application
LDM-PH connects to the lower part of the LDM module to sense illumination and transmit data via the DALI protocol to upper-level control software.It connects via a 5-pin cable and can be installed remotely from the LDM.
Based on illumination, it enables ON/OFF and dimming control of individual or grouped DALI lighting fixtures.
Energy savings can be achieved through illumination-based dimming control.
Specification
- Sensor Type: Photoresistor Sensor (CDS)
- Operating Condition: -10℃ ~ 85℃, 0~95% RH
- Operating Voltage: DC 3.3V
- Power Consumption: 1W
- Communication: USART
- Illumination Range: 50 ~ 2000 Lux
- Output Offset: 0 VDC or 1 VDC (total darkness)
- Wiring: 5-pin standard cable (5V, 3.3V, Motion, Bright, GND)
- Indoor Type
Network
Dimension
User Interface
Layout
System Diagram
Connect Diagram
