Agilent Technologies TV 801 Navigator Bedienungshandbuch Seite 220

17 Technical Information
Interconnections
These setting can be changed by serial interfaces (see "windows
meaning" table: windows 101 to 105). The same settings are used by
the "pro-grammable set point".
Speed setting: PWM input signal to set the pump speed. The PWM
signal characteristics must be the following:
The duty cycle percentage is referred to the low level portion of the PWM signal
NOTE
Programmable analog signal: this output signal is a voltage (from 0
to 10 Vdc) proportional to a reference quantity (frequency or power)
set by the user. The default setting is the frequency (see the following
example diagram).
Figure 12
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Frequency: 582 Hz (90% of the max rotational frequency)
Hysteresis: 2%
Activation type: normally open
Delay time: 0 sec.
frequency: 100 Hz +/-20%
amplitude: 24 V max
duty cycle range: from 25% to 75%
corresponding to an output frequency from 272 Hz to 646 Hz
linearly
Output
TV 801 Navigator User Manual / 87-900-953-01 (G)