Agilent Technologies TwisTorr 305-IC Mode D'emploi page 270

8 Technical Information
Signal Description
Figure 50
Fault: this open collector output signal is ON when a system fault condition is
detected.
Programmable set point: this open collector output signal is enabled when the
reference quantity chosen (frequency, current or time) is higher than the set threshold.
The signal can be "high level active" (that is the output is normally at 0 Vdc and
becomes 24 Vdc when activated), or "low level active" (that is the output is normally at
24 Vdc and becomes 0 Vdc when activated). Moreover, if the reference quantity is the
frequency or the current drawn, it is possible to set the hysteresis (in % of the
threshold value) to avoid bouncing.
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