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Connection configurations
Connection B - FORE-VACUUM PUMP
A flange KF 25 NW is available to connect the
Turbo-V700 HT to the fore-vacuum pump. A hose
or vacuum approved pipe can be used. If a rigid
pipe is used, any vibration generated by the me-
chanical pump must be eliminated through the use
of bellows.
NOTE
The Turbo-V 700HT is characterized by its high
compression ratio also for oil vapors. When using a
mechanical oil-sealed pump, it is advisable to in-
stall a suitable trap between the turbopump and the
fore-vacuum
pump
in
backstreaming.
order
to
prevent oil
Connection C - ELECTRICAL
The turbopump is connected to the controller
through an 8-pin connector. Pins B, C and D are
the 3-phase supply to the motor, pins A and F are
connected to the temperature sensor (NTC type,
30 KΩ resistance at 25q C) and pin E is connected
to the pump ground; pins G and H are not con-
nected.
If the temperature sensor is disconnected, the
pump will not start. To prevent damage to the
pump when the temperature exceeds 60q C, the
sensor automatically cuts out the power supply.
35
TECHNICAL INFORMATION
87-900-878-01(C)
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