Agilent Technologies TPS-mini 9699181, User Manual

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Technical Information
J1 – IN-OUT
17
TPS-mini User Manual / 87-901-003-01 (E) 289/318
PIN N. SIGNAL NAME INPUT/OUTPUT
14
PROGRAMMABLE ANALOG
SIGNAL (+)
OUT
15
x
GROUND
x
PROGRAMMABLE ANALOG SIGNAL (-)
OUT
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:
ƒ frequency: 100 Hz +/-20 %
ƒ
amplitude: 24 V max
ƒ duty cycle range: from 25 % to 75 %
ƒ
corresponding to a pump speed from 1100 Hz to 1167 Hz (see the
following diagram).