Speed Adjustment; Starting The Pump - Varian Turbo-V 150HT Bedienungshandbuch

Speed Adjustment

By pressing CYCLE NUMBER and PUMP CURRENT
push button together for at least five seconds the
processor enters in a routine where it is possible to adjust
the rotational speed.
The display shows:
S P E E D A D J U S T
6 2 K R P M
Press the PUMP push button to select the digit to be
changed and then press the CYCLE push button to
change the value.
The speed value can be changed from 18 to 62 KRPM.
Different values are rejected.The speed adjustement sets
the LOW SPEED frequency to 2/3 of the value set for the
nominal speed.
The speed can be adjusted only when the pump is
stopped.

Starting the Pump

If the forepump and vent device are not operated by the
controller, close the vent valve and switch on the
forepump.
Before starting the pump the cooling mode must be
selected.
With the FRONT panel operation selected, the
REMOTE and RS 232/422/485
inoperative; conversely, the CYCLE NUMBER and
PUMP CURRENT push-buttons are always active,
even when the operating mode selected is REMOTE or
RS 232/422/485.
NOTE
NOTE
NOTE
operations
Press the START push-button (or use the remote or
RS 232/422/485 start signal), and the display shows:
S O F T
[ .
Where the sign minus (-) become a square (
pump finish the ramp-up step. The active step is indicated
by a flashing square (
As the ten steps are fully covered, the pump will reach the
Normal operation. If during the Soft Start mode the current
drawn by the pump exceed 120 W the speed of the pump
is decreased to maintain the maximum power allowable
(120 W).
•
If the Soft Start mode has been deselected the display
will change and shows:
P U M P
1 2
where:
are
1 2 = contrast inverted identifies the set point condition:
•
1 is displayed when relay R1 is de-energized and the
related output is zero voltage.
•
2 is displayed when relay R2 is energized and
related output is 24V.
XX KRPM = indicates the actual theoretical
speed of the pump as a function of the controller output
frequency (range 3 to 62 KRPM).
71
TECHNICAL INFORMATION
S T A R T O N
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I S S T A R T
X X K R P M
87-900-893-01 (C)
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