Agilent Technologies Turbo-V 551 Rack Notice De Mode D'emploi page 217

Figure 8
Moreover, if the reference quantity is the frequency, the current
drawn or the pressure measured, it is possible to set the hysteresis
(in % of the threshold value) to avoid bouncing.
It is possible to delay the set point checking for a programmable
delay time.
For example:
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Turbo-V 551 Rack Controller User Manual / 87-901-031-01
reference quantity: frequency
threshold: 500 Hz
threshold hysteresis: 1 %
activation logic: high level active
delay time: 0 s
Connection J1 Remote I/O Interconnections
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Technical Information
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