Threshold hysteresis is used to determine the deactivation threshold for the binary inputs in case of voltage drops in the auxiliary voltage supply. Threshold hysteresis value determines how low the deactivation voltage is compared to the activation voltage as a percentage. Hysteresis can be set for every module or slot specifically depending on the Slot specific hysteresis setting.
Note: The oscillation hysteresis must be set lower than the oscillation level to enable the input to be restored from oscillation. When the input returns to a non-oscillating state, the binary input is deblocked (the status is valid) and an event is generated.
Note: Binary inputs always deactivate when the voltage level drops below 14 V.
|
Parameter |
Values |
Default |
|---|---|---|
|
Slot specific hysteresis |
0=False 1=True |
0=False |
|
Input threshold hysteresis |
10…50% |
10 % |
|
OSC.level |
2...50 events |
30 events |
|
OSC.hyst |
2...50 events |
10 events |