...1 = Maximum machine stop time (s) T2 = Sensor response time (s) (From ON to OFF: 2.0 ms for the E3FS, 1.0 ms for the E3ZS, 35 ms for the F3SS) T3 = F3SX response time (s) (From ON to OFF: Ref...https://www.ia.omron.com/product/cautions/10/precautions_for_correct_use.html