Agilent Technologies TV70 Mode D'emploi page 159

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 becomes lower
than 495 Hz (that is 500 Hz – 1% of 500 Hz). It is possible to mask the
set point checking for a programmable mask time.
The PROGRAMMABLE SET POINT signal has the following default
settings:
The Software (optional) allows the operator to set all the programmable
NOTE
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.
How to connect the open collector to the controller's input
Here below there are the typical connections of the input of TV70
Navigator to an external device. Two cases are considered:
1.
2.
Please note that on the connector a 24 Vdc, 60 mA voltage, a
GROUND signal and the open collector pin are available.
Controller TV70 Navigator User Manual / 87-900-956-01 (G)
reference quantity: frequency
thereshold: 1125 Hz
hysteresis: 2%
activation type: high level
mask time: 0 second
the customer supplies the 24 Vdc
the customer does not supply the 24 Vdc.
Technical Information
Interconnections
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