Compact fans for AC and DC [PDF] - ebm-papst

DC fans - specialsInformationDC axial fansTechnical information3. Sensor signalDC fans with sensor signal.The integrated „electronic tachometer“ continuouslyprovides an actual speed signal for externalevaluation. The user is informed at all timesof the current fan speed via an extremely simplesignal evaluation on the customer side. Thesensor signal is via a separate lead.4. Alarm signalFor applications which require monitored fanoperation with alarm signal, ebm-papst hasnumerous alarm signal versions, either a static,pre-processed or interface-compatible high orlow continuous signal depending on the type offan.5. Turbo drivesFans with three-phase EC drives and microprocessor-controlledmotor electronics. Thesethree-phase motors whose torque is virtuallynon-reliant on the rotor position are used forextremely high running smoothness. The speedof these fans can be controlled over a very widerange with PWM, analogue voltage or temperature.Optionally, the fans can be supplied withreversible direction of rotation and active brakeoperation.PWMA6. Vario-Pro fansThis high-end fan concept by ebmpapst with programmedintelligence and customer-specific integratedfunctions makes your electronics coolingeven more versatile and competitive. Vario-Proensures a fresh economic breeze for all demandingcooling tasks – e.g. where greater reliability, moreflexibility and intelligent function features such asalarm function, speed control etc. are required.The successful concept of Vario-Pro is: Tailor-madesoftware instead of fixed hardware, because programmedsoftware modules for motor control andapplication intelligence are responsible for thework that analogue components were responsiblefor in the past. This central control unit of theVario-Pro comprises a microcontroller and anEEPROM, on which all characteristics are stored.7. Protection against environmentalinfluencesSome applications place particular demands on thefans' resistance to ambient influences, such asdust, moisture, water and salt. ebm-papst offersolutions for adapting fans to these ambient conditions.109Representatives Accessories AC centrifugal fans AC axial fans ACmaxx / i-maxx DC fans - specials DC centrifugal fans