Additional specifications and description
Exceptionally quiet motor operation
The IGBT technology offers an exceptionally quiet motor operation. Also the fan speed controller operates in complete silence. The incoming sinusoidal voltage is chopped at high frequency by the IGBTs and sent directly to the motor. The class B EMC filter guarantees adequate filtering of harmonics and prevents grid pollution.
Local or remote control
The desired fan speed can be set via an analogue input signal or via Modbus RTU communication. The analogue / modulating input type is selectable: 0-10 Volt / 0-20 mA or 0-100 % PWM. It is possible to define an OFF level. While the input signal is in the OFF level range, the motor output will be 0 %.
Remote start - stop
The motor can be enabled or disabled via the digital input. This offers the possibility to remotely start or stop the motor via an external switch.
Easy to configure
This controller is much easier to configure than a frequency inverter. Due to the fact that there is no DC bus, it is not necessary to specify detailed motor parameters.
For most applications, this variable speed controller can be used with its default settings. If necessary, some parameters can be customised via Modbus RTU communication.
The enclosure is made of high-quality r-ABS VO (UL94) plastic. This material is flame extinguishing in case of fire, very tough and offers good protection against impacts. The enclosure can be surface mounted and offers an IP54 protection against ingress of dirt, dust and moisture.