The function block can be used for any general analog signal protection, either underprotection or overprotection. The setting range is wide, allowing various protection schemes for the function. Thus, the absolute hysteresis can be set to a value that suits the application.
The temperature protection using GOOSERCV_MV can be done using the function block. The measured temperature can be fed from GOOSERCV_MV to the function input that detects too high temperatures in the motor bearings or windings, for example. When the ENA_ADD input is enabled, the threshold value of the internal comparator is the sum of the Start value Add and Start value settings. This allows a temporal increase or decrease of the level detector depending on the sign and value of the Start value Add setting, for example, when the emergency start is activated. If, for example, Start value is 100, Start value Add is 20 and the ENA_ADD input is active, the input signal needs to rise above 120 before MAPGAPC operates.