Agilent Technologies Turbo-V 750 TwisTorr Mode D'emploi page 343

CONTACT: This output signal (OPTOMOS solid state relay) is
enabled when the reference quantity chosen (frequency, current,
time) is higher than the set threshold. The signal is "normally open"
(it will close the circuit when activated) or "normally close".
The factory default setting are:
These setting can be changed by serial interfaces (see "windows
meaning" table: windows 101 to 105). The same settings are used by
the "programmable set point".
Figure 43
SPEED SETTING: PWM input signal to set the pump speed. The
PWM signal characteristics must be the following:
Turbo-V 750/850 TwisTorr User Manual / 87-901-020-01
Frequency: 720 Hz (90 % of the max rotational frequency)
Hysteresis: 2 %
Activation type: normally open
Delay time: 0 sec.
frequency: 100 Hz +/-20 %
amplitude: from 5 to 24 V max
duty cycle range: from 25 % to 75 % (toff/T)
corresponding to a rotational frequency from 350 Hz to 825 Hz
linearly (i.e.: pin 5 connected to pin 9 and pin 6 connected to pin
15, default value is 350 Hz).
Technical Information
Interconnections
(A)
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