HmT Mechatronics was approached by N1 Pavers & Blocks to replace a beyond economical repair Danfoss VSD unit, which controls two 7.5kW vibration motors on one of their brick plants. Vibration motor speed plays a vital role in the quality of brick manufactured. The higher the speed of the motor, the higher the density as well as quality the end product has.
An installed Festo PLC controls the vibration motor speed via the VSD on a 4-20mA current signal. There is also a HMI that enables the operator to alter the running- & JOG speeds in conjunction with the motor direction.