Agilent Technologies TV 902 Navigator Notice De Mode D'emploi page 249

RELAY CONTACT: This relay output signal is en-abled when the
reference quantity chosen (fre-quency, current, time) is higher than
the set threshold. The signal can be "normally open" (it will close the
circuit when activated) or "normally close".
The factory default setting are:
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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:
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The duty cycle percentage is referred to the low level portion of the PWM signal
NOTE
TV 902 Navigator User Manual / 87-900-999-01
Frequency: 582 Hz (90 % of the max rotational frequency)
Hysteresis: 2 %
Activation type: normally open
Delay time: 0 sec.
frequency: 100 Hz +/-20 %
ampitude: 24 V max
duty cycle range: from 25 % to 75 %
corresponding to an output frequency from 500 Hz to 646 Hz
linearly.
Technical Information
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Interconnections
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