The inverter of the board controls the spins of the engine in order to save energy while at the same time it performs a smooth start and stop, damaging less in this way the mechanical parts of the engine. Also peak currents are avoided during start. It has the potential to supervise oil temperature via thermistor. The number of stops can be up to 8 and it can reach 16 with the use of the extension. Diagnosis of the condition of the elements of the installation can take place via LED of the central board and PLC as well as a full configuration and damage diagnosis with the use of the special HMI module monitor which is adjusted to the PLC