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Technical Information
Figure 33
The set PROGRAMMABLE SET POINT Output voltage stays at 24 Vdc until the
frequency becomes higher than 505 Hz (that is 500 Hz + 1% of 500 Hz), then the
output goes at 0 Vdc and stays at 0 Vdc until the frequency becomes lower than
495 Hz (that is 500 Hz – 1% of 500 Hz).
The PROGRAMMABLE SET POINT signal has the following default settings:
reference quantity: frequency
threshold: 643 Hz
Threshold hysteresis: 2 %
activation type: high level active
delay time: 0 s
These settings can be changed by means of serial interfaces (see "Windows
Meaning" table, windows form 101 to 105). The same settings are used by the SET
POINT CONTACT OUTPUT.
SET POINT CONTACT OUTPUT: This output (relay contact) works in the same way
like THE PROGRAMMABLE SET POINT: it uses the same settings used by this
programmable set point.
In particular it is activated when the reference quantity chosen (frequency, current,
time, status normal) is higher than the threshold setting value.
Agilent TwisTorr Medium-TMP Rack Controller User Manual
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