Operating The Pump; Remote Control Mode Operation - Varian Turbo-V 1000 ICE E Série Notice De Mode D'emploi

Operating the Pump

After the starting period, if the system has a vacuum leak
or the pressure in the pump chamber is high (from 1 mbar
to atmosphere), the pump continues to operate indefinitely.
If the gas load at the turbopump inlet flange continues to
stay high, the power drawn by the turbopump increases up
to the maximum value (450 W with water cooling, or 300
W with air cooling).
Then the Turbo-V ICE pump is slowed down in pro- portion
to the gas load at least until it reaches about 4 or 3 KRPM.
As soon as the gas load decreases, the pump will
automatically accelerate to reach normal operation. The
pump can be stopped at any rotational speed and can be
restarted at any rotational speed from either the front panel
buttons or the remote connections. The controller
automatically synchronizes the output to the rotational
speed of the pump and then accelerates linearly up to the
nominal speed or within steps if the Soft Start has been
selected.
Cycle diagram
The display shows:
P U M P
1 2 X X
until normal operation achieved.

Remote Control Mode Operation

If remote signals are used to operate the controller, it must
be programmed for remote operation (see paragraph
"Operating parameter selections" and when ready to start,
the display shows:
R E A D Y
S O F T
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