FRQ

Speed controller with 0-10V input for 1~ fans equipped with all pole sine filter Maximum factory-set output frequency: 50Hz  The FRQS-E frequency inverters have integrated all pole sine filters as standard. Therfore there is no need for shielded cables for the installation. This makes the unit also perfectly suited to retrofit into existing systems. The sine filters enable existing non-shielded cables to be retained. This units also reliably control motors which, due to their design, are not usually considered suitable for frequency inverter operation i.e. external rotor motors.Save and trouble free motor operation with integrated, all pole effective sine filterAnalog input for external speed setup value(0-10 V, 0-20 mA, PWM)10V DC output for external potentiometerPotential-free operation notificationEnable contact section for a stand-by switch or electronic reset Motor protection by connecting thermostats "TB" or thermistors "TP"Interference emission EN 61000-6-3Interference immunity EN 61000-6-2Complete range in IP54Trouble free parallel operation of motorsNo danger to the motors through voltage peaks, bearing current, etc.No limit of motor cable lengthRetrofit in installations with existent wiring(unshielded cables)Operation without electromagnetic motor noiseWide voltage range 1~ 208V-277V, 50/60HzWhen operating with Explosion proof fans the FRQ has to be placed outside the EX zone!