After the installation of the hydraulic and electrical system has been carried out correctly, the inverter can be started. Only in the case of the first start, after the initial presentation, the "EC" error condition is displayed with the message that asks for the parameters necessary to control the electric pump. To start the machine, simply set the value of current written on the product label. If before the start of the pump the system requires special settings other than the default ones, it is necessary to make the changes first and then set the RC current. Parameter settings can be made at any time, but it is recommended to follow this procedure when the application has operating conditions that can compromise the integrity of the system components, such as pumps with a minimum frequency limit or that do not tolerate certain dry running times. For multi-inverter systems, it is necessary to make the connections of the sensors and the communication cables and then turn on both inverters at the same time by performing the first-start operation for each inverter. Once all the inverters are configured, you can supply all the elements of the multi-inverter system. To learn more about this topic, you can register free for our online course MCE-P tutorial organized by D.Training, aimed at installers, plumbers or interested people. We recommend you read the MCE-P instruction manual (also available on our DNA software) for all information on the use of the product.