Agilent Technologies TwisTorr 305 FS User Manual page 77

Figure 9
The set point output stays at 0 Vdc until the frequency becomes higher than
505 Hz (that is 500 Hz + 1% of 500 Hz), then the output goes at 24 Vdc
and stays at 24 Vdc until the frequency be-comes lower than 495 Hz
(that is 500 Hz – 1% of 500 Hz).
It is possible to delay the set point checking for a programmable delay time.
The PROGRAMMABLE SET POINT signal has the following default settings:





The communication S/W between the controller and the pump (A-Plus) allows
NOTE
the operator to set all the programmable feature.
When no external input-output device is available this connector must be
closed with the supplied mating connector that short-circuits the START and
INTERLOCK inputs with the GROUND input (see the following figure).
TwisTorr 305 FS onboard Controller User Manual / 87-901-060-01
Set point output
reference quantity: frequency
threshold: 909 Hz
hysteresis: 2 %
activation type: high level
delay time: 0 second
Technical Information
Interconnections
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