0-10V dimming controls enable building occupants to select their light level preferences while also helping reduce unnecessary energy usage within a facility. However, these advantages can sometimes be lost if the controls are being used on a circuit that is also designated for emergency lighting (ie. connected to an auxiliary power supply such as an inverter or generator.) Emergency supplies need to be able to bypass local controls, such as ON/OFF switches, sensors or timers, or 0-10V dimming signals to ensure the emergency lights operate as intended during a loss of power.
For these applications, IOTA® offers several IIS emergency inverter designs that include an internal dimming relay. This feature allows the IIS inverter to detect the presence of a 0-10V dimming signal on the circuit. During normal operation, the IIS allows the 0-10V signal to operate the load as desired. In the event of a loss of power, the dimming relay will open and allow the IIS inverter to operate the connected load at full brightness regardless of control settings during emergency operation.
To learn more about how the "DR" dimming relay function works, and to see available IIS models that include the DR feature, read our latest IOTA Tech Brief here.
For more information on IOTA IIS inverter systems or other emergency lighting solutions, visit www.iotaengineering.com or contact us at 1-800-866-4682.