It is advantageous to use variable-speed drives wherever bulk, liquid or gaseous materials have to be moved, transported, pumped or compressed.Such applications basically include: Pumps, fans, compressors Moving: Belt conveyors, ship's drives Processing: Mills, mixers, kneaders, crushers, agitators, rotary furnaces, extruders
SINAMICS G150 cabinet units have been designed for variable-speed drives in machine building and plant construction. They have been specially tuned to the requirements of drives with quadratic or constant load characteristics with medium performance requirements without regenerative feedback. The control accuracy of the sensorless vector control is suitable for most applications, and additional actual speed value encoders are therefore superfluous. SINAMICS G150 offer an economical drive solution which can be matched to the respective customer requirements by a wide range of components and options.
Customer benefits Particularly quiet and compact converters using state-of-the-art IGBT power semiconductors and innovative cooling solution. Maximum servicing friendliness with easy accessibility to all modules. Problem-free interfacing into automation solutions using a standard PROFIBUS interface and various analog and digital interfaces. Increase in plant availability through easy, fast replacement of individual modules and power components. Simple start-up and parameterization using interactive menus on the user-friendly AOP30 operator panel with LCD incorporating graphics capability and plain text display. Energy Saving: If the motor is not required it can be completely shut down using this function. This is done automatically if the system deviation of the technology controller lies below a defined limit value for a time that can be parameterized. Enhanced Energy Saving: This function can be used to extend the time for which the drive converter is powered down as a result of the Energy Saving function - in order to save more energy and to avoid unnecessarily starting and stopping the pumps. And an additional spin-off - the pipes are also purged. MaintenanceCleaning: A constant flow rate means that suspended particles in the liquids being pumped can be deposited over time. This can reduce the effective pipe diameter or even block the pumps. The MaintenanceCleaning function is used to briefly increase the pump speed to counteract this sediment build-up. Wall Deposits Prevention: If tank levels are kept constant over a longer period of time in wastewater treatment systems deposits occur at the edge of the tank. To avoid these deposits, the WallDeposits-Prevention function always varies the set point for the technology controller so that the tank level is permanently raised and lowered.