Power Quality Monitoring

Prophi ®power factor controllerVentilator controlSimple ventilator controls can be developed with the temperature sensor which is built into the Prophi ® and a ventilator. A relay outputor the alarm relay is used for controlling the ventilators. The upper/lower temperature limit can be programmed for this feature.Automatic configurationThe “LEARN” function offers the opportunity to learn the connection configuration of the power factor controller and save it.LCD displayThe Prophi ® power factor controller has a high-quality LCD display with high contrast. Extensive measurement parameters (approx.100 measurement values) can be displayed via LCD.Display examples: voltage reactive power harmonicsExcess temperature shutdownConnected capacitor steps can be disconnected with the excess temperature shutdown func -tion in order to reduce the temperature inside the PFC-system cabinet and to protect thecapacitors. The upper/lower limit temperature and pause time can be set by the user.Upper limit temperatureInterfaceThe Prophi ® power factor controller is equipped with a RS485 interface depending upon the product variant. The Modbus RTU orProfibus DPV0 protocols are available through the RS485 in order to interconnect the Prophi ® or connect it to PLC systems.Communication speed:Modbus: 9.6, 19.2, 38.4, 57.6, 115.2 kBit/sProfibus: up to 1.5 MBit/sIllustration: RS485 interface terminal configuration126