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ISTRUZIONI ORIGINALI
1 - Turbopump Description
The turbopump consists of a high frequency motor
driving a turbine fitted with many bladed stages
and Macrotorr stages. The turbine rotates in an
anticlockwise direction when viewed from the high
vacuum flange end.
The turbine is made of high-strength, light alumi-
num alloy, and is machined from a single block of
aluminum. The turbine blades have five different
angles, from 44° to 12°, while the Macrotorr stages
are in the form of discs.
The turbine rotor is supported by permanently lu-
bricated high precision ceramic ball bearings in-
stalled on the forevacuum side of the pump.
The static blades of the stator are fabricated in
stainless steel. These are supported and accu-
rately positioned by spacer rings.
The Macrotorr stators are in the form of self-
positioning machined discs with pumping channels
and an opening restricted by the corresponding
rotor discs. These are fabricated in aluminum al-
loy.
During normal operation, the motor functions with
a power feed at 54 Vac three-phase at 1330 Hz
(TV81M), 963 Hz (TV301) or 700 Hz (TV551). To
reduce losses during start-up to a minimum, the
frequency increases according to a ramp with a
higher initial voltage/frequency ratio.
A thermistor sensor is mounted near the upper
bearing to prevent the pump from overheating.
The pump is balanced after assembly with a resid-
ual vibration amplitude less than 0.01 μm.
2 - Front Panel
The TPS-mobile front Panel is the system user in-
terface where all controller elements are located.
In particular, it contains:
− Main Switch
It is a protection thermal switch able to provide
electrical power to the system protecting all the
devices integrated in the system against over-
currents or shortcircuits.
The nominal current of the switch is fitted in ac-
cording to the system configuration (see con-
figuration tables).
By means of the Main Switch you provide
power to the system activating the TMP control-
ler and its ability to read pressure by means of
an optional gauge (if connected).
− TMP Controller
The integrated controller is a solid-state fre-
quency converter which is driven by a single
chip microcomputer and is composed of a PCB
which includes a power supply with a 3-phase
AC output, analogical and input/output section,
microprocessor and digital section. The control-
ler recognizes the mains presence and con-
verts the single phase AC mains supply into a
3-phase, medium frequency output which is re-
quired to power the pump.
− Pumping Selector
TPS-mobile versions equipped with TV81M or
TV301 include an electrical selector named
"Pumping" on the left side of the front panel.
It is aimed to pumps management (ON/OFF).
By means of "Pumping" selector you are able to
start pumping; activating the pumping effect of
TMP an Foreline pump.
TPS-mobile equipped with TV551 is not pro-
vided with the "Pumping" selector; the same
function is provided by the "ON" button of the
TMP controller.
− Gauge Control Unit (optional)
If needed is possible to order a special version
of TPS-mobile equipped with an optional gauge
controller named Varian XGS-600.
By means of XGS-600 is possible to manage a
couple of gauges to monitor pressure on sys-
tem foreline by means of a convector gauge
-3
(1x10
Torr to atm) and high vacuum pressure
by means of a IMG-100 (1x10
− 3 - Electrical Devices Box
It is a metal box containing all the electrical
equipments useful to manage the vacuum
components integrated in the TPS-mobile.
The rear panel of the Electrical Box is equipped
with:
• Main socket – IEC 320 electrical socket for
pumping system power cable connection
(except the model 969-8433 equipped with
an integrated power cable).
• Gauge Port – Fireware connector for active
gauge FRG-700 connection (see Chapter
"Gauge Connector").
− 4 - 5m TMP and Fan Cables
On the rear side of Electrical Box 5 m long TMP
and Fan cables are wrapped up.
They are useful for the TMP and its fan and
operation far from the pumping system.
− 5 - Wheels
TPS-mobile is provided with four wheels allow-
ing the system to be moved and located where
vacuum is needed.
Two out of four wheels are provided with a
breaking system to avoid accidental moving of
the pumping system during operation.
6 - Foreline Pumps Description
TPS-mobile can be equipped both with a dry pump
(scroll type) or with an oil sealed Rotary Vane
Pump.
TPS-mobile versions equipped with a scroll pump
are free of contaminating agents and therefore are
suitable for applications requiring "clean" vacuum.
TPS-mobile versions equipped with scroll pumps
are: 969-8416, 969.8412, 969-8418, 969-8402,
969-8401, 969-8404, 969-8406, 969-8422, 969-
8423, 969-8427, 969-8428, 969-8429, 969-8432
and 969-8433.
The scroll pump principle of operation is described
here following.
87/105
TECHNICAL INFORMATION
-3
-9
to 5x10
87-901-005-01(A)
Torr).
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