Test With Dummy Load; Pump Over-Temperature Test; Functional Test - Varian Turbo-V 70 Bedienungshandbuch

Test with Dummy Load

− Connect the 48Ω or the 78Ω dummy loads to the
pump connector pins B, C, D, as shown in the
previous figure.
− Disconnect the potentiometer, set it to 10 KΩ, and
then reconnect it.
− Connect the power cable.
On the hand-held terminal push the START and
CURRENT pushbuttons and check the front panel
display as shown in the following table.
During start-up
without
Soft Start mode
With
48Ω
dumm
y load
Current ±10%
1.4 A
Power ±10%
80 W
Speed 34
±4 KRPM
52 °C
Temperature
±2 °C
− Check the 3-phase ac output voltage.
After start up it should be:
42 Vac with 78Ω dummy load and
42 Vac with 48Ω dummy load.
On the hand-held terminal press the STOP pushbutton
and remove J17 from the controller.
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After
start-up
With With With
78Ω 48Ω 78Ω
dumm dumm dumm
y load y load y load
0.6 A 1.3 A 0.45 A
40 W 70 W 24 W
75 9 75
52 °C 52 °C 52 °C

Pump over-Temperature Test

− Disconnect the potentiometer, set it to 5KΩ, and
then reconnect it.
− Disconnect the dummy loads.
− Connect J17.
− On the hand-held terminal push the START
pushbutton, then press the CURRENT pushbutton.
The temperature reading should be 71 °C ±2 °C. All
the other values should be zero.
− Check the 3-phase ac output voltage.
It should be zero.
− On the hand-held terminal press STOP and remove
J17 from the controller.

Functional Test

Perform the functional test with the turbopump, taking
care to check the ramp sequence and start up time.
After test, on the hand-held terminal press STOP and
select the REMOTE operation. Disconnect J17 and
remove the hand-held terminal.
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TECHNICAL INFORMATION
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