Signal Description - Agilent Technologies TPS-mini Notice De Mode D'emploi

PIN N.
14
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Signal Description

START/STOP: input signal to start or stop the pump. Without the
supplied cover connector the turbomolecular pump automatically
starts, if you want to stop the turbo-pump from outside, you have to
connect the START/STOP (+) signal to the +24 Vdc pin and the
START/STOP (-) signal to the GROUND pin (this is the default
configuration of the cover connector).
INTERLOCK: input signal to control the pump rotation. With the
supplied cover connector the INTERLOCK (+) signal is connected to
the +24 Vdc pin and the INTERLOCK (-) signal to the GROUND pin; in
this condition the pump is stopped.
SOFT START: this input is used to provide a "soft start" to the pump;
in this condition the ramp-up time could be up to 20 min.
SPEED SETTING: PWM input signal to set the pump speed. The
PWM signal characteristics must be the following:
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TPS-mini User Manual / 87-901-003-01 (E)
SIGNAL NAME
PROGRAMMABLE ANALOG
SIGNAL (+)
GROUND

PROGRAMMABLE ANALOG SIGNAL (-)

frequency: 100 Hz +/-20 %
amplitude: 24 V max
duty cycle range: from 25 % to 75 %
corresponding to a pump speed from 1100 Hz to 1167 Hz (see the
following diagram).
Technical Information
J1 – IN-OUT
INPUT/OUTPUT
OUT
OUT
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