Pump Shutdown; Power Failure; Remote Control Mode Operation - Varian Turbo-V 70 Bedienungshandbuch

Pump Shutdown

With the FRONT panel operation, press the front panel
STOP pushbutton; the power from the turbopump is
removed and the pump will begin to slow down.
When a stop signal is provided via a remote contact,
the display will be as shown in the following figure.
E X T E R N A L
b 7 C L O S E D

Power Failure

In the event of a power failure (momentary or long
term), the Turbo-V controller will stop the turbopump
and all the interconnected pumps/devices. The Turbo-V
vent valve device, if used, will vent the turbopump only
if the power failure is longer than the preset delay time.
When power is restored, the Turbo-V controller
automatically restarts the interconnected devices and
the turbopump in the proper sequence.
The display shows:
P U M P I S
1 2 X X K R P M
until normal operation achieved.
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S W I T C H
S T A R T I N G

Remote Control Mode Operation

If remote signals are used to operate the controller, it
must be programmed for remote operation (see
paragraph "FRONT/REMOTE/232
when ready to start, the display shows as in the
following figure.
As soon as the remote operation is selected the pump
will start automatically if b7 stop signal is not applied.
R E A D Y
S O F T S T A R T
If the Soft Start has been deselected the display shows:
P U M P R E A D Y :
R E M O T E
With or wihout Soft Start mode selected the
START/STOP and
pushbuttons are inoperative,
NUMBER and PUMP CURRENT pushbuttons are
always active.
79
TECHNICAL INFORMATION
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