Protection Features

To maximize device life span, digital dimmers incorporate several protection features and transmits information related to the C-Bus network and load status flow to the system integrator via C-Bus measurement and error reporting application for early diagnosis of adverse environmental factors.

Thermal Wind Back and Recovery

In any dimming mode, if the channel's internal temperature exceeds 80°C the dimmer periodically reduces the conduction time (the brightness). This continues until the channel temperature reduces below 80°C.

The brightness will recover when the temperature remains below 80°C. Whilst in this over temperature wind back state, the over temperature channel status will be reflected in the channel indicator state and also via Error Reporting Application (if enabled).

Over Temperature (Thermal Shutdown)

If the channel temperature continues to rise and reaches 100°C, the channel will shut down and indicate over temperature shutdown status on the channel indicator and via Error Reporting Application (if enabled).

Once in this state, the channel will remain off until the state is toggled.

Over Current

Each channel of the dimmer includes over current protection against faults such as wiring faults, incandescent lamp filament failure and excessive load.

If the channel’s over current protection is triggered, the channel will shut down and indicate over current status on the channel indicator and via the Error Reporting Application (if enabled).

Once in this state, the channel will remain off until the state is toggled.

Incompatible Load

If the dimmer channel identifies that the connected load is incompatible with the selected mode or load profile, the channel will turn off and indicate ‘Incompatible Load Error” via the indicator.

Mode Error

In TE mode, if inductive spikes are observed while dimming suggesting a presence of an inductive load, the channel will shut down and indicate mode error.