ELP LDM90 – Emergency Module For LEDs With a Forward Voltage of 12-90V (Non-DALI)

Description ELP LDM90 The LDM emergency control gear has been designed to be used with most LED Driver powered luminaires so that the luminaire can operate normally with mains power and provide the optimum battery powered light output in the event of a mains failure. LDM90 Features The LED current in emergency mode is automatically adjusted for maximum light output and is constant for the entire rated duration. Smart charging of both Nickel Cadmium and Lithium Iron Phosphate batteries. NB: Lithium Iron Phosphate batteries offer long life (up to 10 years).  Details are logged of any mains failures to assist in the diagnostics of any site issues. The LDM range is available with fully interoperable DALI control and reporting function. These DALI versions indicated by the suffix D, also provide automatic Self-Test when no DALI bus is connected. It is important to note that some LED mains control gear should not be operated with an open circuit load, to overcome this problem when first powering up, the LDM range features a live in/live out relay which ensures the load is in place before the mains driver is powered up. In Self-test mode the function and duration tests will take place at randomised times. If required, duration testing can be programmed by turning the unswitched supply off and on 3 times in 10 seconds at the required time. Note: The function test will occur weekly at the same time. https://www.elp.uk.com/product/ldm/