Zero Test

P1386 

In the Zero test mode, the integral is monitored within a measuring window when all input signals are completely switched off. An error is assumed if the integrator gradient of the "zero test pulse" exceeds a calibrated threshold. The corresponding minimum fault KRIC is set as soon as a calibrated number of consecutive fault assumptions is exceeded. The fault path is cleared when the same number of consecutive Zero test measurements are performed without detecting a fault.