Pump Shutdown - Agilent Technologies Turbo-V 2000HT 969-9562 Bedienungshandbuch

17 Technical Information
Use
With normal LOW SPEED operation, the pump will run at the
frequency set in ADJUST and achieves a base pressure somewhat
higher than the standard specifications. If the gas load becomes
higher, the controller output frequency and voltage start to decrease
automatically, and the Turbo-V pump is slowed down in proportion
to the gas load until it reaches about 3 KRPM.
If the LOW SPEED mode is selected after normal operating condition
is reached, the display shows:
A
while approaching the low speed value.
When the low speed mode is deselected the pump starts to accelerate
to its rotational speed. When this is reached, the display shows:
N

Pump Shutdown

Press the front panel STOP push-button or remove the remote signal;
the power from the turbopump will be removed and the pump will
begin to slow down.
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Turbo-V 2000HT Controller User Manual / 87-900-913-01
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