614N/39M ebm papst

DC fans - specials Speed signal 168 Alarm signal 172 Vario-Pro / Speed setting / Control input 177 Protected fans, degree of protection: IP 54 / IP 68 181 165 2016-01 Representatives Accessories AC centrifugal fans AC axial fans ACmaxx / EC fans DC fans - specials DC centrifugal fans DC axial fans InformationDC fans - specials Technical information Cooling capacity and efficiency 1. Speed adjustment via temperature sensor Greater power density, increasing miniaturization and extreme electronic ebm-papst answers with a complete range of DC fans with temperature- component density are placing increased demands on the cooling controlled speed adjustment via a temperature sensor, available in a capacity and efficiency of fans. Therefore, intelligent and space-saving variety of standard dimensions. integration of the fan in the device configuration is very important: Installation is very simple. Either an external temperature sensor in the Tailor-made cooling adapted to the situation as and when required. form of an exposed wire that can be placed anywhere, or an internal sensor located directly in the fan hub in the air flow provides continuous Programmable cooling by defining speed profiles. and undissipated thermal information to the control electronics for speed Transparency of function thanks to complete, interactive monitoring in adjustment. A range of temperature sensors can be found on page 178. all operating conditions. 2. DC fans with separate control input Standard fans in electronics cooling have proven themselves a million Open or closed-loop speed control is also possible with DC fans that have times over. a separate control input. So a control voltage or a pulse-width modulated signal can be used to vary the speed. These options are used primarily in With a constant speed and an appropriate sound level, they continuously devices that have the appropriate standard interfaces and require varied provide the air flow required for extreme cases. But these extreme fans depending on the load. situations occur seldom if at all during operation. What is needed is an intelligent fan that adapts automatically to the level of cooling required at the time. ebm-papst provides intelligent cooling concepts that are optimally adapted to practical requirements. For example: 166 2016-01