Associated protection mechanisms

Industrial drivers are equipped with fault detection and converter trip systems. When a problem is detected, the power component is protected in two phases. The first is immediate blocking of the power component by the SSD, if this function has been implemented. This action takes place at the driver's secondary stage. At the same time, an error signal in the form of a pulse is sent to the primary stage. Once this signal has been detected, a command to block the power transistor is sent back to the driver's 2 secondary stages, and information is sent to the converter's control system.

To illustrate this, let's take the example of a commonly used structure. The synoptic view of the different parts involved in error handling is illustrated in...